- L2VPN Protocol-Based CLIs
- Any Transport over MPLS
- Loop-Free Alternate Fast Reroute
- Configuring Virtual Private LAN Services
- EVPN Virtual Private Wire Service (VPWS) Single Homed
- VPLS MAC Address Withdrawal
- H-VPLS N-PE Redundancy for MPLS Access
- VPLS Autodiscovery BGP Based
- VPLS BGP Signaling
- N:1 PVC Mapping to PWE with Nonunique VPIs
- Pseudowire Group Switchover
- Configuring Routed Pseudowire and VPLS
- VPLS Configuration over MPLS-TP
- Pseudowire Stitching
- Finding Feature Information
- Prerequisites for Virtual Private LAN Services
- Restrictions for Virtual Private LAN Services
- Information About Virtual Private LAN Services
- Configuring PE Layer 2 Interfaces on CE Devices
- Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device
- Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device: Alternate Configuration
- Configuring Access Ports for Untagged Traffic from a CE Device
- Configuring Access Ports for Untagged Traffic from a CE Device: Alternate Configuration
- Configuring Q-in-Q EFP
- Configuring Q-in-Q EFP: Alternate Configuration
- Configuring MPLS on a PE Device
- Configuring a VFI on a PE Device
- Configuring a VFI on a PE Device: Alternate Configuration
- Configuring Static Virtual Private LAN Services
- Configuring a Pseudowire Class for Static VPLS
- Configuring VFI for Static VPLS
- Configuring a VFI for Static VPLS: Alternate Configuration
- Configuring an Attachment Circuit for Static VPLS
- Configuring an Attachment Circuit for Static VPLS: Alternate Configuration
- Configuring an MPLS-TP Tunnel for Static VPLS with TP
- Configuring a VFI for Static VPLS: Alternate Configuration
- Example: Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device
- Example: Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device: Alternate Configuration
- Example: Configuring Access Ports for Untagged Traffic from a CE Device
- Example: Configuring Access Ports for Untagged Traffic from a CE Device: Alternate Configuration
- Example: Configuring Q-in-Q EFP
- Example: Configuring Q-in-Q in EFP: Alternate Configuration
- Example: Configuring MPLS on a PE Device
- Example: VFI on a PE Device
- Example: VFI on a PE Device: Alternate Configuration
- Example: Full-Mesh VPLS Configuration
- Example: Full-Mesh Configuration : Alternate Configuration
Configuring Virtual Private LAN Services
Virtual Private LAN Services (VPLS) enables enterprises to link together their Ethernet-based LANs from multiple sites via the infrastructure provided by their service provider.
This module explains VPLS and how to configure it.
- Finding Feature Information
- Prerequisites for Virtual Private LAN Services
- Restrictions for Virtual Private LAN Services
- Information About Virtual Private LAN Services
- How to Configure Virtual Private LAN Services
- Configuration Examples for Virtual Private LAN Services
- Feature Information for Configuring Virtual Private LAN Services
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for Virtual Private LAN Services
Before your configure Virtual Private LAN Services (VPLS), ensure that the network is configured as follows:
- Configure IP routing in the core so that provider edge (PE) devices can reach each other via IP.
- Configure Multiprotocol Label Switching (MPLS) in the core so that a label switched path (LSP) exists between PE devices.
- Configure a loopback interface for originating and terminating Layer 2 traffic. Ensure that PE devices can access the loopback interface of the other device. Note that the loopback interface is not required in all cases. For example, tunnel selection does not need a loopback interface when VPLS is directly mapped to a traffic engineering (TE) tunnel.
- Identify peer PE devices and attach Layer 2 circuits to VPLS at each PE device.
Restrictions for Virtual Private LAN Services
The following general restrictions apply to all transport types under Virtual Private LAN Services (VPLS):
- Split horizon is the default configuration to avoid broadcast packet looping and to isolate Layer 2 traffic. Split horizon prevents packets received from an emulated virtual circuit (VC) from being forwarded into another emulated VC. This technique is important for creating loop-free paths in a full-meshed network.
Supported maximum values:
- Software-based data plane is not supported.
- Auto-discovery mechanism is not supported.
- Load sharing and failover on redundant customer-edge-provider-edge (CE-PE) links are not supported.
- The addition or removal of MAC addresses with Label Distribution Protocol (LDP) is not supported.
- VFI is supported only with the interface vlan command.
Restrictions for VPLS on Cisco ASR 900 Series Routers
- Routed Pseudowire is not supported on the Cisco ASR 900 Series Routers.
Information About Virtual Private LAN Services
VPLS Overview
Virtual Private LAN Services (VPLS) enables enterprises to link together their Ethernet-based LANs from multiple sites via the infrastructure provided by their service provider. From the enterprise perspective, the service provider’s public network looks like one giant Ethernet LAN. For the service provider, VPLS provides an opportunity to deploy another revenue-generating service on top of the existing network without major capital expenditures. Operators can extend the operational life of equipment in their network.
VPLS uses the provider core to join multiple attachment circuits together to simulate a virtual bridge that connects the multiple attachment circuits together. From a customer point of view, there is no topology for VPLS. All customer edge (CE) devices appear to connect to a logical bridge emulated by the provider core (see the figure below).
Full-Mesh Configuration
A full-mesh configuration requires a full mesh of tunnel label switched paths (LSPs) between all provider edge (PE) devices that participate in Virtual Private LAN Services (VPLS). With a full mesh, signaling overhead and packet replication requirements for each provisioned virtual circuit (VC) on a PE can be high.
You set up a VPLS by first creating a virtual forwarding instance (VFI) on each participating PE device. The VFI specifies the VPN ID of a VPLS domain, the addresses of other PE devices in the domain, and the type of tunnel signaling and encapsulation mechanism for each peer PE device.
The set of VFIs formed by the interconnection of the emulated VCs is called a VPLS instance; it is the VPLS instance that forms the logic bridge over a packet switched network. After the VFI has been defined, it needs to be bound to an attachment circuit to the CE device. The VPLS instance is assigned a unique VPN ID.
PE devices use the VFI to establish a full-mesh LSP of emulated VCs to all other PE devices in the VPLS instance. PE devices obtain the membership of a VPLS instance through static configuration using the Cisco IOS CLI.
A full-mesh configuration allows the PE device to maintain a single broadcast domain. When the PE device receives a broadcast, multicast, or unknown unicast packet on an attachment circuit (AC), it sends the packet out on all other ACs and emulated circuits to all other CE devices participating in that VPLS instance. The CE devices see the VPLS instance as an emulated LAN.
To avoid the problem of a packet looping in the provider core, PE devices enforce a “split-horizon” principle for emulated VCs. In a split horizon, if a packet is received on an emulated VC, it is not forwarded on any other emulated VC.
The packet forwarding decision is made by looking up the Layer 2 VFI of a particular VPLS domain.
A VPLS instance on a particular PE device receives Ethernet frames that enter on specific physical or logical ports and populates a MAC table similarly to how an Ethernet switch works. The PE device can use the MAC address to switch these frames into the appropriate LSP for delivery to the another PE device at a remote site.
If the MAC address is not available in the MAC address table, the PE device replicates the Ethernet frame and floods it to all logical ports associated with that VPLS instance, except the ingress port from which it just entered. The PE device updates the MAC table as it receives packets on specific ports and removes addresses not used for specific periods.
Static VPLS Configuration
Virtual Private LAN Services (VPLS) over Multiprotocol Label Switching-Transport Profile (MPLS-TP) tunnels allows you to deploy a multipoint-to-multipoint layer 2 operating environment over an MPLS-TP network for services such as Ethernet connectivity and multicast video. To configure static VPLS, you must specify a static range of MPLS labels using the mpls label range command with the static keyword.
H-VPLS
Hierarchical VPLS (H-VPLS) reduces signaling and replication overhead by using full-mesh and hub-and-spoke configurations. Hub-and-spoke configurations operate with split horizon to allow packets to be switched between pseudowires (PWs), effectively reducing the number of PWs between provider edge (PE) devices.
 Note | Split horizon is the default configuration to avoid broadcast packet looping. |
Supported Features
- Multipoint-to-Multipoint Support
- Non-Transparent Operation
- Circuit Multiplexing
- MAC-Address Learning, Forwarding, and Aging
- Jumbo Frame Support
- Q-in-Q Support and Q-in-Q to EoMPLS Support
- VPLS Services
Multipoint-to-Multipoint Support
In a multipoint-to-multipoint network, two or more devices are associated over the core network. No single device is designated as the Root node; all devices are considered as Root nodes. All frames can be exchanged directly between the nodes.
Non-Transparent Operation
A virtual Ethernet connection (VEC) can be transparent or non-transparent with respect to Ethernet protocol data units (PDUs). The VEC non-transparency allows users to have a Frame Relay-type service between Layer 3 devices.
Circuit Multiplexing
Circuit multiplexing allows a node to participate in multiple services over a single Ethernet connection. By participating in multiple services, the Ethernet connection is attached to multiple logical networks. Some examples of possible service offerings are VPN services between sites, Internet services, and third-party connectivity for intercompany communications.
MAC-Address Learning, Forwarding, and Aging
Provider edge (PE) devices must learn remote MAC addresses and directly attached MAC addresses on ports that face the external network. MAC address learning accomplishes this by deriving the topology and forwarding information from packets originating at customer sites. A timer is associated with stored MAC addresses. After the timer expires, the entry is removed from the table.
Jumbo Frame Support
Jumbo frame support provides support for frame sizes between 1548 and 9216 bytes. You use the CLI to establish the jumbo frame size for any value specified in the above range. The default value is 1500 bytes in any Layer 2/VLAN interface. You can configure jumbo frame support on a per-interface basis.
Q-in-Q Support and Q-in-Q to EoMPLS Support
With 802.1Q tunneling (Q-in-Q), the customer edge (CE) device issues VLAN-tagged packets and VPLS forwards these packets to a far-end CE device. Q-in-Q refers to the fact that one or more 802.1Q tags may be located in a packet within the interior of the network. As packets are received from a CE device, an additional VLAN tag is added to incoming Ethernet packets to segregate traffic from different CE devices. Untagged packets originating from a CE device use a single tag within the interior of the VLAN switched network, whereas previously tagged packets originating from the CE device use two or more tags.
VPLS Services
Transparent LAN Service
Transparent LAN Service (TLS) is an extension to the point-to-point port-based Ethernet over Multiprotocol Label Switching (EoMPLS), which provides bridging protocol transparency (for example, bridge protocol data units [BPDUs]) and VLAN values. Bridges see this service as an Ethernet segment. With TLS, the PE device forwards all Ethernet packets received from the customer-facing interface (including tagged and untagged packets, and BPDUs) as follows:
- To a local Ethernet interface or an emulated virtual circuit (VC) if the destination MAC address is found in the Layer 2 forwarding table.
- To all other local Ethernet interfaces and emulated VCs belonging to the same VPLS domain if the destination MAC address is a multicast or broadcast address or if the destination MAC address is not found in the Layer 2 forwarding table.
Note | You must enable Layer 2 protocol tunneling to run the Cisco Discovery Protocol (CDP), the VLAN Trunking Protocol (VTP), and the Spanning-Tree Protocol (STP). |
Ethernet Virtual Connection Service
Ethernet Virtual Connection Service (EVCS) is an extension to the point-to-point VLAN-based Ethernet over MPLS (EoMPLS) that allows devices to reach multiple intranet and extranet locations from a single physical port. With EVCS, the provider edge (PE) device forwards all Ethernet packets with a particular VLAN tag received from the customer-facing interface (excluding bridge protocol data units [BPDUs]) as follows:
- To a local Ethernet interface or to an emulated virtual circuit (VC) if the destination MAC address is found in the Layer 2 forwarding table.
- To all other local Ethernet interfaces and emulated VCs belonging to the same Virtual Private LAN Services (VPLS) domain if the destination MAC address is a multicast or a broadcast address or if the destination MAC address is not found in the Layer 2 forwarding table.
Note | Because it has only local significance, the demultiplexing VLAN tag that identifies a VPLS domain is removed before the packet is forwarded to the outgoing Ethernet interfaces or emulated VCs. |
How to Configure Virtual Private LAN Services
Provisioning a Virtual Private LAN Services (VPLS) link involves provisioning the associated attachment circuit and a virtual forwarding instance (VFI) on a provider edge (PE) device.
In Cisco IOS XE Release 3.7S, the L2VPN Protocol-Based CLIs feature was introduced. This feature provides a set of processes and an improved infrastructure for developing and delivering Cisco IOS software on various Cisco platforms. This feature introduces new commands and modifies or replaces existing commands to achieve a consistent functionality across Cisco platforms and provide cross-Operating System (OS) support.
This section consists of tasks that use the commands existing prior to Cisco IOS XE Release 3.7S and a corresponding task that uses the commands introduced or modified by the L2VPN Protocol-Based CLIs feature.
- Configuring PE Layer 2 Interfaces on CE Devices
- Configuring MPLS on a PE Device
- Configuring a VFI on a PE Device
- Configuring a VFI on a PE Device: Alternate Configuration
- Configuring Static Virtual Private LAN Services
Configuring PE Layer 2 Interfaces on CE Devices
You can configure the Ethernet flow point (EFP) as a Layer 2 virtual interface. You can also select tagged or untagged traffic from a customer edge (CE) device.
- Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device
- Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device: Alternate Configuration
- Configuring Access Ports for Untagged Traffic from a CE Device
- Configuring Access Ports for Untagged Traffic from a CE Device: Alternate Configuration
- Configuring Q-in-Q EFP
- Configuring Q-in-Q EFP: Alternate Configuration
Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device
Note | When Ethernet Virtual Connection Service (EVCS) is configured, a provider edge (PE) device forwards all Ethernet packets with a particular VLAN tag to a local Ethernet interface or emulated virtual circuit (VC) if the destination MAC address is found in the Layer 2 forwarding table. |
1.
enable
2.
configure terminal
3.
interface
type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance si-id
ethernet
7.
encapsulation
dot1q
vlan-id
8.
bridge-domain
bd-id
9.
end
DETAILED STEPS
Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device: Alternate Configuration
Note | When Ethernet Virtual Connection Service (EVCS) is configured, the PE device forwards all Ethernet packets with a particular VLAN tag to a local Ethernet interface or an emulated virtual circuit (VC) if the destination MAC address is found in the Layer 2 forwarding table. |
1.
enable
2.
configure terminal
3.
interface
type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance
si-id
ethernet
7.
encapsulation
dot1q
vlan-id
8.
exit
9.
exit
10.
bridge-domain
bd-id
11.
member
interface-type-number service-instance
service-id [split-horizon group group-id
]
12.
end
DETAILED STEPS
Configuring Access Ports for Untagged Traffic from a CE Device
1.
enable
2.
configure terminal
3.
interface
type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance
si-id
ethernet
7.
encapsulation
untagged
8.
bridge-domain
bd-id
9.
end
DETAILED STEPS
Configuring Access Ports for Untagged Traffic from a CE Device: Alternate Configuration
1.
enable
2.
configure terminal
3.
interface type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance
si-id
ethernet
7.
encapsulation
untagged
8.
exit
9.
exit
10.
bridge-domain
bd-id
11.
member
interface-type-number service-instance
service-id
[split-horizon group group-id]
12.
end
DETAILED STEPS
Configuring Q-in-Q EFP
Note | When a thread-local storage (TLS) is configured, the provider edge (PE) device forwards all Ethernet packets received from the customer edge (CE) device to all local Ethernet interfaces and emulated virtual circuits (VCs) that belong to the same Virtual Private LAN Services (VPLS) domain if the MAC address is not found in the Layer 2 forwarding table. |
1.
enable
2.
configure
terminal
3.
interface type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance
si-id
ethernet
7.
encapsulation
dot1q
vlan-id
second-dot1q
vlan-id
8.
bridge-domain
bd-id
9.
end
DETAILED STEPS
Configuring Q-in-Q EFP: Alternate Configuration
Note | When a thread-local storage (TLS) is configured, the provider edge (PE) device forwards all Ethernet packets received from the customer edge (CE) device to all local Ethernet interfaces and emulated virtual circuits (VCs) belonging to the same Virtual Private LAN Services (VPLS) domain if the MAC address is not found in the Layer 2 forwarding table. |
1.
enable
2.
configure
terminal
3.
interface
type number
4.
no
ip
address [ip-address mask] [secondary]
5.
negotiation auto
6.
service
instance
si-id
ethernet
7.
encapsulation
dot1q
vlan-id
second-dot1q
vlan-id
8.
exit
9.
exit
10.
bridge-domain
bd-id
11.
member
interface-type-number service-instance
service-id [split-horizon group
group-id]
12.
end
DETAILED STEPS
Configuring MPLS on a PE Device
To configure Multiprotocol Label Switching (MPLS) on a provider edge (PE) device, configure the required MPLS parameters.
Note | Before configuring MPLS, ensure that IP connectivity exists between all PE devices by configuring Interior Gateway Protocol (IGP), Open Shortest Path First (OSPF), or Intermediate System to Intermediate System (IS-IS) between PE devices. |
1.
enable
2.
configure
terminal
3.
mpls
label protocol {ldp | tdp}
4.
mpls ldp logging neighbor-changes
5.
mpls ldp discovery hello holdtime seconds
6.
mpls ldp router-id interface-type-number [force]
7.
end
DETAILED STEPS
Configuring a VFI on a PE Device
The virtual forwarding interface (VFI) specifies the VPN ID of a Virtual Private LAN Services (VPLS) domain, the addresses of other provider edge (PE) devices in the domain, and the type of tunnel signaling and encapsulation mechanism for each peer. Perform this task to configure a VFI:
Note | Only Multiprotocol Label Switching (MPLS) encapsulation is supported. |
1.
enable
2.
configure terminal
3.
l2 vfi name manual
4.
vpn id vpn-id
5. neighbor remote-router-id vc-id {encapsulation encapsulation-type | pw-class pw-name} [no-split-horizon]
6.
bridge-domain
bd-id
7.
end
DETAILED STEPS
Configuring a VFI on a PE Device: Alternate Configuration
1.
enable
2.
configure terminal
3.
l2vpn vfi context name
4.
vpn id
id
5.
member ip-address [vc-id] encapsulation mpls
6.
exit
7.
bridge-domain
bd-id
8.
member
vfi
vfi-name
9.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 | enable Example: Device> enable | |
| Step 2 | configure terminal Example: Device# configure terminal | Enters global configuration mode. |
| Step 3 | l2vpn vfi context name
Example: Device(config)# l2vpn vfi context vfi110 |
Establishes a L2VPN VFI between two or more separate networks, and enters VFI configuration mode. |
| Step 4 |
vpn id
id
Example: Device(config-vfi)# vpn id 110 |
Configures a VPN ID for a Virtual Private LAN Services (VPLS) domain. The emulated virtual circuits (VCs) bound to this Layer 2 virtual routing and forwarding (VRF) instance use this VPN ID for signaling. |
| Step 5 |
member ip-address [vc-id] encapsulation mpls
Example: Device(config-vfi)# member 172.16.10.2 4 encapsulation mpls |
Specifies the devices that form a point-to-point Layer 2 VPN (L2VPN) virtual forwarding interface (VFI) connection and Multiprotocol Label Switching (MPLS) as the encapsulation type. |
| Step 6 |
exit
Example: Device(config-vfi)# exit |
Exits VFI configuration mode and returns to global configuration mode. |
| Step 7 |
bridge-domain
bd-id
Example: Device(config)# bridge-domain 100 |
Specifies a bridge domain and enters bridge-domain configuration mode. |
| Step 8 |
member
vfi
vfi-name
Example: Device(config-bdomain)# member vfi vfi110 |
Binds a VFI instance to a bridge domain instance. |
| Step 9 |
end
Example: Device(config-bdomain)# end |
Exits bridge-domain configuration mode and returns to privileged EXEC mode. |
Configuring Static Virtual Private LAN Services
To configure static Virtual Private LAN Services (VPLS), perform the tasks that follow.
Configuring a Pseudowire Class for Static VPLS
The configuration of pseudowires between provider edge (PE) devices helps in the successful transmission of the Layer 2 frames between PE devices.
Use the pseudowire template to configure the virtual circuit (VC) type for the virtual path identifier (VPI) pseudowire. In the following task, the pseudowire will go through a Multiprotocol Label Switching (MPLS)-Tunneling Protocol (TP) tunnel.
The pseudowire template configuration specifies the characteristics of the tunneling mechanism that is used by the pseudowires, which are:
Perform this task to configure a pseudowire template for static Virtual Private LAN Services (VPLS).
Note | Ensure that you perform this task before configuring the virtual forwarding instance (VFI) peer. If the VFI peer is configured before the pseudowire class, the configuration is incomplete until the pseudowire class is configured. The show running-config command displays an error stating that configuration is incomplete. Device# show running-config | sec vfi l2 vfi config manual vpn id 1000 ! Incomplete point-to-multipoint vfi config neighbor 203.0.113.20 pw-class default |
1.
enable
2.
configure
terminal
3.
template
type
pseudowire
name
4.
encapsulation
mpls
5.
exit
6.
interface
pseudowire
number
7.
source
template
type
pseudowire
name
8.
neighbor
peer-address
vcid-value
9.
signaling
protocol
none
10.
preferred-path
interface
Tunnel-tp
interface-number
11.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
template
type
pseudowire
name
Example: Device(config)# template type pseudowire static-vpls |
Specifies the template type as pseudowire and enters template configuration mode. |
| Step 4 |
encapsulation
mpls
Example: Device(config-template)# encapsulation mpls |
|
| Step 5 |
exit
Example: Device(config-template)# exit |
Exits template configuration mode and returns to global configuration mode. |
| Step 6 |
interface
pseudowire
number
Example: Device(config)# interface pseudowire 1 |
Establishes a pseudowire interface and enters interface configuration mode. |
| Step 7 |
source
template
type
pseudowire
name
Example: Device(config-if)# source template type pseudowire static-vpls |
Configures the source template type of the configured pseudowire. |
| Step 8 |
neighbor
peer-address
vcid-value
Example: Device(config-if)# neighbor 10.0.0.1 123 |
Specifies the peer IP address and VC ID value of a Layer 2 VPN (L2VPN) pseudowire. |
| Step 9 |
signaling
protocol
none
Example: Device(config-if)# signaling protocol none |
Specifies that no signaling protocol is configured for the pseudowire class. |
| Step 10 |
preferred-path
interface
Tunnel-tp
interface-number
Example: Device(config-if)# preferred-path interface Tunnel-tp 1 |
(Optional) Specifies the path that traffic uses: an MPLS Traffic Engineering (TE) tunnel or destination IP address and Domain Name Server (DNS) name. |
| Step 11 |
end
Example: Device(config-if)# end |
Exits interface configuration mode and returns to privileged EXEC mode. |
Configuring VFI for Static VPLS
Note | Ensure that you perform this task after configuring the pseudowire class. If the VFI peer is configured before the pseudowire class, the configuration is incomplete until the pseudowire class is configured. The output of the show running-config command displays an error stating that configuration is incomplete. Device# show running-config | sec vfi l2 vfi config manual vpn id 1000 ! Incomplete point-to-multipoint vfi config neighbor 203.0.113.20 pw-class default |
1.
enable
2.
configure
terminal
3.
mpls label
range
minimum-value
maximum-value [static
minimum-static-value
maximum-static-value]
4.
pseudowire-class
[pw-class-name]
5.
encapsulation mpls
6. protocol {l2tpv2 | l2tpv3 | none} [l2tp-class-name]
7.
exit
8.
l2
vfi
vfi-name
manual
9.
vpn
id
vpn-id
10.
neighbor
ip-address
pw-class
pw-name
11.
mpls
label
local-pseudowire-label
remote-pseudowire-label
12.
mpls
control-word
13.
neighbor
ip-address
pw-class
pw-name
14.
mpls
label
local-pseudowire-label
remote-pseudowire-label
15.
mpls
control-word
16.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 | mpls label
range
minimum-value
maximum-value [static
minimum-static-value
maximum-static-value]
Example: Device(config)# mpls label range 16 200 static 300 500 |
Configures the range of local labels available for use with Multiprotocol Label Switching (MPLS) applications on packet interfaces. |
| Step 4 | pseudowire-class
[pw-class-name]
Example: Device(config)# pseudowire-class static_vpls |
Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode. |
| Step 5 | encapsulation mpls
Example: Device(config-pw-class)# encapsulation mpls |
Specifies the tunneling encapsulation as MPLS. |
| Step 6 | protocol
{l2tpv2 |
l2tpv3 |
none}
[l2tp-class-name]
Example: Device(config-pw-class)# protocol none |
Specifies that no signaling protocol will be used in Layer 2 Tunneling Protocol Version 3 (L2TPv3) sessions. |
| Step 7 | exit
Example: Device(config-pw-class)# exit |
Exits pseudowire class configuration mode and returns to global configuration mode. |
| Step 8 |
l2
vfi
vfi-name
manual
Example: Device(config)# l2 vfi static-vfi manual |
Establishes a Layer 2 VPN (L2VPN) virtual forwarding interface (VFI) between two or more separate networks, and enters Layer 2 VFI manual configuration mode. |
| Step 9 |
vpn
id
vpn-id
Example: Device(config-vfi)# vpn id 100 |
Specifies the VPN ID. |
| Step 10 |
neighbor
ip-address
pw-class
pw-name
Example: Device(config-vfi)# neighbor 10.3.4.4 pw-class static_vpls |
Specifies the IP address of the peer and the pseudowire class. |
| Step 11 |
mpls
label
local-pseudowire-label
remote-pseudowire-label
Example: Device(config-vfi)# mpls label 301 17 |
Configures an Any Transport over MPLS (AToM) static pseudowire connection by defining local and remote circuit labels. |
| Step 12 |
mpls
control-word
Example: Device(config-vfi)# mpls control-word |
(Optional) Enables the MPLS control word in an AToM static pseudowire connection. |
| Step 13 |
neighbor
ip-address
pw-class
pw-name
Example: Device(config-vfi)# neighbor 2.3.4.3 pw-class static_vpls |
Specifies the IP address of the peer and the pseudowire class. |
| Step 14 |
mpls
label
local-pseudowire-label
remote-pseudowire-label
Example: Device(config-vfi)# mpls label 302 18 |
Configures an AToM static pseudowire connection by defining local and remote circuit labels. |
| Step 15 |
mpls
control-word
Example: Device(config-vfi)# mpls control-word |
(Optional) Enables the MPLS control word in an AToM static pseudowire connection. |
| Step 16 |
end
Example: Device(config-vfi)# end |
Exits Layer 2 VFI manual configuration mode and returns to privileged EXEC mode. |
Configuring a VFI for Static VPLS: Alternate Configuration
Note | Ensure that you perform this task after configuring the pseudowire class. If the VFI peer is configured before the pseudowire class, the configuration is incomplete until the pseudowire class is configured. The output of the show running-config command displays an error stating that configuration is incomplete. Device# show running-config | sec vfi l2 vfi config manual vpn id 1000 ! Incomplete point-to-multipoint vfi config neighbor 203.0.113.20 pw-class default |
1.
enable
2.
configure
terminal
3.
l2vpn
vfi
context
vfi-name
4.
vpn
id
vpn-id
5.
exit
6.
interface
type
number
7.
encapsulation
mpls
8.
neighbor
ip-address
vc-id
9.
label
local-pseudowire-label
remote-pseudowire-label
10.
control-word {include
|
exclude}
11.
exit
12.
bridge-domain
bd-id
13.
member
vfi
vfi-name
14.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
l2vpn
vfi
context
vfi-name
Example: Device(config)# l2vpn vfi context vpls1 |
Establishes a Layer 2 VPN (L2VPN) virtual forwarding interface (VFI) between two or more separate networks and enters VFI configuration mode. |
| Step 4 |
vpn
id
vpn-id
Example: Device(config-vfi)# vpn id 100 |
Specifies the VPN ID. |
| Step 5 |
exit
Example: Device(config-vfi)# exit |
Exits VFI configuration mode and returns to global configuration mode. |
| Step 6 |
interface
type
number
Example: Device(config)# interface pseudowire 100 |
Specifies an interface and enters interface configuration mode. |
| Step 7 |
encapsulation
mpls
Example: Device(config-if)# encapsulation mpls |
Specifies an encapsulation type for tunneling Layer 2 traffic over a pseudowire. |
| Step 8 |
neighbor
ip-address
vc-id
Example: Device(config-if)# neighbor 10.3.4.4 100 |
Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire. |
| Step 9 |
label
local-pseudowire-label
remote-pseudowire-label
Example: Device(config-if)# label 301 17 |
Configures an Any Transport over MPLS (AToM) static pseudowire connection by defining local and remote circuit labels. |
| Step 10 |
control-word {include
|
exclude}
Example: Device(config-if)# control-word include |
(Optional) Enables the Multiprotocol Label Switching (MPLS) control word in an AToM dynamic pseudowire connection. |
| Step 11 |
exit
Example: Device(config-if)# exit |
Exits interface configuration mode and returns to global configuration mode. |
| Step 12 |
bridge-domain
bd-id
Example: Device(config)# bridge-domain 24 |
Specifies the bridge domain ID and enters bridge-domain configuration mode. |
| Step 13 |
member
vfi
vfi-name
Example: Device(config-bdomain)# member vfi vpls1 |
Binds a service instance to a bridge domain instance. |
| Step 14 |
end
Example: Device(config-bdomain)# end |
Exits bridge-domain configuration mode and returns to privileged EXEC mode. |
Configuring an Attachment Circuit for Static VPLS
1.
enable
2.
configure
terminal
3.
interface
gigabitethernet
slot/interface
4.
service
instance
si-id
ethernet
5.
encapsulation
dot1q
vlan-id
6.
rewrite
ingress
tag pop
number
[symmetric]
7.
bridge-domain
bd-id
8.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
interface
gigabitethernet
slot/interface
Example: Device(config)# interface gigabitethernet 1/0/1 |
|
| Step 4 |
service
instance
si-id
ethernet
Example: Device(config-if)# service instance 100 ethernet |
Configures an Ethernet service instance on an interface and enters service instance configuration mode. |
| Step 5 |
encapsulation
dot1q
vlan-id
Example: Device(config-if-srv)# encapsulation dot1q 200 |
|
| Step 6 |
rewrite
ingress
tag pop
number
[symmetric]
Example: Device(config-if-srv)# rewrite ingress tag pop 1 symmetric |
(Optional) Specifies the encapsulation adjustment to be performed on a frame ingressing a service instance and the tag to be removed from a packet. |
| Step 7 |
bridge-domain
bd-id
Example: Device(config-if-srv)# bridge-domain 24 |
(Optional) Binds a service instance or a MAC tunnel to a bridge domain instance. |
| Step 8 |
end
Example: Device(config-if-srv)# end |
Exits service instance configuration mode and returns to privileged EXEC mode. |
Configuring an Attachment Circuit for Static VPLS: Alternate Configuration
1.
enable
2.
configure
terminal
3.
interface
gigabitethernet
slot/interface
4.
service
instance
si-id
ethernet
5.
encapsulation
dot1q
vlan-id
6.
rewrite
ingress
tag pop
number
[symmetric]
7.
exit
8.
exit
9.
bridge-domain
bd-id
10.
member
interface-type-number service-instance
service-id [split-horizon group group-id]
11.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
interface
gigabitethernet
slot/interface
Example: Device(config)# interface gigabitethernet 1/0/1 |
|
| Step 4 |
service
instance
si-id
ethernet
Example: Device(config-if)# service instance 10 ethernet |
Specifies a service instance ID and enters service instance configuration mode. |
| Step 5 |
encapsulation
dot1q
vlan-id
Example: Device(config-if-srv)# encapsulation dot1q 200 |
|
| Step 6 |
rewrite
ingress
tag pop
number
[symmetric]
Example: Device(config-if-srv)# rewrite ingress tag pop 1 symmetric |
(Optional) Specifies the encapsulation adjustment to be performed on a frame ingressing a service instance and the tag to be removed from a packet. |
| Step 7 |
exit
Example: Device(config-if-srv)# exit |
Exits service instance configuration mode and returns to interface configuration mode. |
| Step 8 |
exit
Example: Device(config-if)# exit |
Exits interface configuration mode and returns to global configuration mode. |
| Step 9 |
bridge-domain
bd-id
Example: Device(config)# bridge-domain 100 |
Specifies the bridge domain ID and enters bridge-domain configuration mode. |
| Step 10 |
member
interface-type-number service-instance
service-id [split-horizon group group-id] Example: Device(config-bdomain)# member gigabitethernet0/0/0 service-instance 1000 |
(Optional) Binds a service instance to a bridge domain instance. |
| Step 11 |
end
Example: Device(config-bdomain)# end |
Exits bridge-domain configuration mode and returns to privileged EXEC mode. |
Configuring an MPLS-TP Tunnel for Static VPLS with TP
1.
enable
2.
configure
terminal
3.
interface
Tunnel-tp
number
4.
no
ip
address
5.
no
keepalive
6.
tp
destination
ip-address
7.
bfd
bfd-template
8.
working-lsp
9.
out-label
number
out-link
number
10.
lsp-number
number
11.
exit
12.
protect-lsp
13.
out-label
number
out-link
number
14.
in-label
number
15.
lsp-number
number
16.
exit
17.
exit
18.
interface
type number
19.
ip
address
ip-address
ip-mask
20.
mpls tp
link
link-num {ipv4
ip-address |
tx-mac
mac-address}
21.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
interface
Tunnel-tp
number
Example: Device(config)# interface Tunnel-tp 4 |
|
| Step 4 | no
ip
address
Example: Device(config-if)# no ip address |
Disables the IP address configuration. |
| Step 5 | no
keepalive
Example: Device(config-if)# no keepalive |
Disables the keepalive configuration. |
| Step 6 | tp
destination
ip-address
Example: Device(config-if)# tp destination 10.22.22.22 |
Configures the tunnel destination. |
| Step 7 | bfd
bfd-template
Example: Device(config-if)# bfd tp |
Binds a single-hop Bidirectional Forwarding Detection (BFD) template to an interface. |
| Step 8 | working-lsp
Example: Device(config-if)# working-lsp |
Configures the working label switched path (LSP) and enters working interface configuration mode. |
| Step 9 | out-label
number
out-link
number
Example: Device(config-if-working)# out-label 16 out-link 100 |
Configures the out link and out label for the working LSP. |
| Step 10 |
lsp-number
number
Example: Device(config-if-working)# lsp-number 0 |
Configures the ID number for the working LSP. |
| Step 11 |
exit
Example: Device(config-if-working)# exit |
Exits working interface configuration mode and returns to interface configuration mode. |
| Step 12 |
protect-lsp
Example: Device(config-if)# protect-lsp |
Enters protection configuration mode for the label switched path (LSP) and enters protect interface configuration mode. |
| Step 13 | out-label
number
out-link
number
Example: Device(config-if-protect)# out-label 11 out-link 500 |
Configures the out link and out label for the protect LSP. |
| Step 14 |
in-label
number
Example: Device(config-if-protect)# in-label 600 |
Configures the in label for the protect LSP. |
| Step 15 |
lsp-number
number
Example: Device(config-if-protect)# lsp-number 1 |
Configures the ID number for the working protect LSP. |
| Step 16 |
exit
Example: Device(config-if-protect)# exit |
Exits protect interface configuration mode and returns to interface configuration mode. |
| Step 17 |
exit
Example: Device(config-if)# exit |
Exits interface configuration mode and returns to global configuration mode. |
| Step 18 |
interface
type number
Example: Device(config-if)# interface GigabitEthernet 1/0 |
Configures a interface and enters interface configuration mode. |
| Step 19 | ip
address
ip-address
ip-mask
Example: Device(config)# ip address 10.0.0.1 255.255.255.0 |
(Optional) Configures the IP address and mask if not using an IP-less core. |
| Step 20 | mpls tp
link
link-num {ipv4
ip-address |
tx-mac
mac-address}
Example: Device(config-if)# mpls tp link 10 tx-mac 0100.0c99.8877 |
Configures Multiprotocol Label Switching (MPLS) transport profile (TP) link parameters. |
| Step 21 |
end
Example: Device(config-if)# end |
Exits interface configuration mode and returns to privileged EXEC mode. |
Configuring a VFI for Static VPLS: Alternate Configuration
Note | Ensure that you perform this task after configuring the pseudowire class. If the VFI peer is configured before the pseudowire class, the configuration is incomplete until the pseudowire class is configured. The output of the show running-config command displays an error stating that configuration is incomplete. Device# show running-config | sec vfi l2 vfi config manual vpn id 1000 ! Incomplete point-to-multipoint vfi config neighbor 203.0.113.20 pw-class default |
1.
enable
2.
configure
terminal
3.
l2vpn
vfi
context
vfi-name
4.
vpn
id
vpn-id
5.
exit
6.
interface
type
number
7.
encapsulation
mpls
8.
neighbor
ip-address
vc-id
9.
label
local-pseudowire-label
remote-pseudowire-label
10.
control-word {include
|
exclude}
11.
exit
12.
bridge-domain
bd-id
13.
member
vfi
vfi-name
14.
end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Device> enable |
Enables privileged EXEC mode. |
| Step 2 |
configure
terminal
Example: Device# configure terminal |
Enters global configuration mode. |
| Step 3 |
l2vpn
vfi
context
vfi-name
Example: Device(config)# l2vpn vfi context vpls1 |
Establishes a Layer 2 VPN (L2VPN) virtual forwarding interface (VFI) between two or more separate networks and enters VFI configuration mode. |
| Step 4 |
vpn
id
vpn-id
Example: Device(config-vfi)# vpn id 100 |
Specifies the VPN ID. |
| Step 5 |
exit
Example: Device(config-vfi)# exit |
Exits VFI configuration mode and returns to global configuration mode. |
| Step 6 |
interface
type
number
Example: Device(config)# interface pseudowire 100 |
Specifies an interface and enters interface configuration mode. |
| Step 7 |
encapsulation
mpls
Example: Device(config-if)# encapsulation mpls |
Specifies an encapsulation type for tunneling Layer 2 traffic over a pseudowire. |
| Step 8 |
neighbor
ip-address
vc-id
Example: Device(config-if)# neighbor 10.3.4.4 100 |
Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire. |
| Step 9 |
label
local-pseudowire-label
remote-pseudowire-label
Example: Device(config-if)# label 301 17 |
Configures an Any Transport over MPLS (AToM) static pseudowire connection by defining local and remote circuit labels. |
| Step 10 |
control-word {include
|
exclude}
Example: Device(config-if)# control-word include |
(Optional) Enables the Multiprotocol Label Switching (MPLS) control word in an AToM dynamic pseudowire connection. |
| Step 11 |
exit
Example: Device(config-if)# exit |
Exits interface configuration mode and returns to global configuration mode. |
| Step 12 |
bridge-domain
bd-id
Example: Device(config)# bridge-domain 24 |
Specifies the bridge domain ID and enters bridge-domain configuration mode. |
| Step 13 |
member
vfi
vfi-name
Example: Device(config-bdomain)# member vfi vpls1 |
Binds a service instance to a bridge domain instance. |
| Step 14 |
end
Example: Device(config-bdomain)# end |
Exits bridge-domain configuration mode and returns to privileged EXEC mode. |
Configuration Examples for Virtual Private LAN Services
Example: Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device
This example shows how to configure the tagged traffic:
Device(config)# interface GigabitEthernet 1/0/1 Device(config-if)# no ip address Device(config-if)# negotiation auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation dot1q 200 Device(config-if-srv)# bridge-domain 100 Device(config-if-srv)# end
Example: Configuring 802.1Q Access Ports for Tagged Traffic from a CE Device: Alternate Configuration
The following example shows how to configure the tagged traffic:
Device(config)# interface GigabitEthernet 1/0/1 Device(config-if)# no ip address Device(config-if)# negotiation auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation dot1q 200 Device(config-if-srv)# exit Device(config-if)# exit Device(config)# bridge-domain 100 Device(config-bdomain)# member gigabitethernet1/0/1 service-instance 1000 Device(config-bdomain)# end
Example: Configuring Access Ports for Untagged Traffic from a CE Device
The following example shows how to configure access ports for untagged traffic:
Device(config)# interface gigabitethernet1/0/0 Device(config-if)# no ip address Device(config-if)# negotiation auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation untagged Device(config-if-srv)# bridge-domain 100 Device(config-if-srv)# end
The following example shows a virtual forwarding interface (VFI) configuration:
Device(config)# l2 vfi VPLSA manual Device(config-vfi)# vpn id 110 Device(config-vfi)# neighbor 10.11.11.11 encapsulation mpls Device(config-vfi)# neighbor 10.33.33.33 encapsulation mpls Device(config-vfi)# neighbor 10.44.44.44 encapsulation mpls Device(config-vfi)# bridge-domain 100 Device(config-vfi)# end
The following example shows a VFI configuration for hub and spoke.
Device(config)# l2 vfi VPLSA manual Device(config-vfi)# vpn id 110 Device(config-vfi)# neighbor 10.9.9.9 encapsulation mpls Device(config-vfi)# neighbor 10.12.12.12 encapsulation mpls Device(config-vfi)# neighbor 10.33.33.33 encapsulation mpls no-split-horizon Device(config-vfi)# bridge-domain 100 Device(config-vfi)# end
The output of the show mpls 12transport vc command displays various information related to a provide edge (PE) device. The VC ID in the output represents the VPN ID; the VC is identified by the combination of the destination address and the VC ID as shown in the command output. The output of the show mpls l2transport vc detail command displays detailed information about virtual circuits (VCs) on a PE device.
Device# show mpls l2transport vc 201 Local intf Local circuit Dest address VC ID Status ------------- -------------------- --------------- ---------- ---------- VFI test1 VFI 192.0.2.1 201 UP VFI test1 VFI 192.0.2.5 201 UP VFI test1 VFI 192.0.2.9 201 UP
The following sample output from the show vfi command displays the VFI status:
Device# show vfi VPLS-2
VFI name: VPLS-2, state: up
Local attachment circuits:
Vlan2
Neighbors connected via pseudowires:
Peer Address VC ID Split-horizon
10.1.1.1 2 Y
10.4.4.2 2 Y
10.2.2.3 2 N
Example: Configuring Access Ports for Untagged Traffic from a CE Device: Alternate Configuration
The following example shows how to configure the untagged traffic.
Device(config)# interface GigabitEthernet4/4 Device(config-if)# no ip address Device(config-if)# negotiation auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation untagged Device(config-if-srv)# exit Device(config-if)# exit Device(config)# bridge-domain 100 Device(config-bdomain)# member GigabitEthernet4/4 service-instance 10 Device(config-if-srv)# end
Example: Configuring Q-in-Q EFP
The following example shows how to configure the tagged traffic.
Device(config)# interface GigabitEthernet 1/0/2 Device(config-if)# no ip address Device(config-if)# negotiate auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation dot1q 200 second-dot1q 400 Device(config-if-srv)# bridge-domain 100 Device(config-if-srv)# end
Use the show spanning-tree vlan command to verify that the ports are not in a blocked state. Use the show vlan id command to verify that a specific port is configured to send and receive specific VLAN traffic.
Example: Configuring Q-in-Q in EFP: Alternate Configuration
The following example shows how to configure the tagged traffic:
Device(config)# interface GigabitEthernet4/4 Device(config-if)# no ip address Device(config-if)# nonegotiate auto Device(config-if)# service instance 10 ethernet Device(config-if-srv)# encapsulation dot1q 200 second-dot1q 400 Device(config-if-srv)# exit Device(config-if)# exit Device(config)# bridge-domain 100 Device(config-bdomain)# member GigabitEthernet4/4 service-instance 1000 Device(config-bdomain)# end
Use the show spanning-tree vlan command to verify that the port is not in a blocked state. Use the show vlan id command to verify that a specific port is configured to send and receive a specific VLAN traffic.
Example: Configuring MPLS on a PE Device
The following example shows a global Multiprotocol Label Switching (MPLS) configuration:
Device(config)# mpls label protocol ldp Device(config)# mpls ldp logging neighbor-changes Device(config)# mpls ldp discovery hello holdtime 5 Device(config)# mpls ldp router-id Loopback0 force
The following sample output from the show ip cef command displays the Label Distribution Protocol (LDP) label assigned:
Device# show ip cef 192.168.17.7
192.168.17.7/32, version 272, epoch 0, cached adjacency to POS4/1
0 packets, 0 bytes
tag information set
local tag: 8149
fast tag rewrite with PO4/1, point2point, tags imposed: {4017}
via 10.3.1.4, POS4/1, 283 dependencies
next hop 10.3.1.4, POS4/1
valid cached adjacency
tag rewrite with PO4/1, point2point, tags imposed: {4017}
Example: VFI on a PE Device
The following example shows a virtual forwarding instance (VFI) configuration:
Device(config)# l2 vfi vfi110 manual Device(config-vfi)# vpn id 110 Device(config-vfi)# neighbor 172.16.10.2 4 encapsulation mpls Device(config-vfi)# neighbor 10.16.33.33 encapsulation mpls Device(config-vfi)# neighbor 198.51.100.44 encapsulation mpls Device(config-vfi)# bridge-domain 100 Device(config-vfi)# end
The following example shows a VFI configuration for a hub-and-spoke configuration:
Device(config)# l2 vfi VPLSA manual Device(config-vfi)# vpn id 110 Device(config-vfi)# neighbor 10.9.9.9 encapsulation mpls Device(config-vfi)# neighbor 192.0.2.12 encapsulation mpls Device(config-vfi)# neighbor 203.0.113.4 encapsulation mpls no-split-horizon Device(config-vfi)# bridge-domain 100 Device(config-vfi)# end
The show mpls 12transport vc command displays information about the provider edge (PE) device. The show mpls l2transport vc detail command displays detailed information about the virtual circuits (VCs) on a PE device.
Device# show mpls l2transport vc 201 Local intf Local circuit Dest address VC ID Status ------------- -------------------- --------------- ---------- ---------- VFI test1 VFI 209.165.201.1 201 UP VFI test1 VFI 209.165.201.2 201 UP VFI test1 VFI 209.165.201.3 201 UP
The show vfi vfi-name command displays VFI status. The VC ID in the output represents the VPN ID; the VC is identified by the combination of the destination address and the VC ID as in the example below.
Device# show vfi VPLS-2
VFI name: VPLS-2, state: up
Local attachment circuits:
Vlan2
Neighbors connected via pseudowires:
Peer Address VC ID Split-horizon
10.1.1.1 2 Y
10.1.1.2 2 Y
10.2.2.3 2 N
Example: VFI on a PE Device: Alternate Configuration
The following example shows how to configure a virtual forwarding interface (VFI) on a provider edge (PE) device:
Device(config)# l2vpn vfi context vfi110 Device(config-vfi)# vpn id 110 Device(config-vfi)# member 172.16.10.2 4 encapsulation mpls Device(config-vfi)# member 10.33.33.33 encapsulation mpls Device(config-vfi)# member 10.44.44.44 encapsulation mpls Device(config-vfi)# exit Device(config)# bridge-domain 100 Device(config-bdomain)# member vfi vfi110 Device(config-bdomain)# end
The following example shows how to configure a hub-and-spoke VFI configuration:.
Device(config)# l2vpn vfi context VPLSA Device(config-vfi)# vpn id 110 Device(config-vfi)# member 10.9.9.9 encapsulation mpls Device(config-vfi)# member 172.16.10.2 4 encapsulation mpls Device(config-vfi)# exit Device(config)# bridge-domain 100 Device(config-bdomain)# member vfi VPLSA Device(config-bdomain)# member GigabitEthernet0/0/0 service-instance 100 Device(config-bdomain)# member 10.33.33.33 10 encapsulation mpls Device(config-bdomain)# end
The show l2vpn atom vc command displays information about the PE device. The command also displays information about Any Transport over MPLS (AToM) virtual circuits (VCs) and static pseudowires that are enabled to route Layer 2 packets on a device.
Device# show l2vpn atom vc Local intf Local circuit Dest address VC ID Status ------------- ----------------------- --------------- ---------- ---------- Et0/0.1 Eth VLAN 101 10.0.0.2 101 UP Et0/0.1 Eth VLAN 101 10.0.0.3 201 DOWN
The show l2vpn vfi command displays the VFI status. The VC ID in the output represents the VPN ID; the VC is identified by the combination of the destination address and the VC ID as in the example below.
Device# show l2vpn vfi VPLS-2 Legend: RT= Route-target VFI name: serviceCore1, State: UP, Signaling Protocol: LDP VPN ID: 100, VPLS-ID: 9:10, Bridge-domain vlan: 100 RD: 9:10, RT: 10.10.10.10:150 Pseudo-port Interface: Virtual-Ethernet1000 Neighbors connected via pseudowires: Interface Peer Address VC ID Discovered Router ID Next Hop Pw2000 10.0.0.1 10 10.0.0.1 10.0.0.1 Pw2001 10.0.0.2 10 10.1.1.2 10.0.0.2 Pw2002 10.0.0.3 10 10.1.1.3 10.0.0.3 Pw5 10.0.0.4 10 - 10.0.0.4
Example: Full-Mesh VPLS Configuration
In a full-mesh configuration, each provider edge (PE) device creates a multipoint-to-multipoint forwarding relationship with all other PE devices in the Virtual Private LAN Services (VPLS) domain using a virtual forwarding interface (VFI). An Ethernet or a VLAN packet received from the customer network can be forwarded to one or more local interfaces and/or emulated virtual circuits (VCs) in the VPLS domain. To avoid a broadcast packet loop in the network, packets received from an emulated VC cannot be forwarded to any emulated VC in the VPLS domain on a PE device. Ensure that Layer 2 split horizon is enabled to avoid a broadcast packet loop in a full-mesh network.
PE 1 Configuration
The following examples shows how to create virtual switch instances (VSIs) and associated VCs:
l2 vfi PE1-VPLS-A manual vpn id 100 neighbor 10.2.2.2 encapsulation mpls neighbor 10.3.3.3 encapsulation mpls bridge domain 100 ! interface Loopback 0 ip address 10.1.1.1 255.255.0.0
The following example shows how to configure the customer edge (CE) device interface (there can be multiple Layer 2 interfaces in a VLAN):
interface FastEthernet0/0 no ip address negotiation auto service instance 10 ethernet encapsulation dot1q 200 bridge-domain 100
PE 2 Configuration
The following example shows how to create VSIs and associated VCs.
l2 vfi PE2-VPLS-A manual vpn id 100 neighbor 10.1.1.1 encapsulation mpls neighbor 10.3.3.3 encapsulation mpls bridge domain 100 ! interface Loopback 0 ip address 10.2.2.2 255.255.0.0
The following example shows how to configure the CE device interface (there can be multiple Layer 2 interfaces in a VLAN):
interface FastEthernet0/0 no ip address negotiation auto service instance 10 ethernet encapsulation dot1q 200 bridge-domain 100
PE 3 Configuration
The following example shows how to create VSIs and associated VCs:
l2 vfi PE3-VPLS-A manual vpn id 112 neighbor 10.1.1.1 encapsulation mpls neighbor 10.2.2.2 encapsulation mpls bridge domain 100 ! interface Loopback 0 ip address 10.3.3.3 255.255.0.0
The following example shows how to configure the CE device interface (there can be multiple Layer 2 interfaces in a VLAN).
interface FastEthernet0/1 no ip address negotiation auto service instance 10 ethernet encapsulation dot1q 200 bridge-domain 100 !
The following sample output from the show mpls l2 vc command provides information about the status of the VC:
VPLS-A# show mpls l2 vc Local intf Local circuit Dest address VC ID Status ------------- -------------------- --------------- ---------- ---------- VFI PE1-VPLS-A VFI 10.2.2.2 100 UP VFI PE1-VPLS-A VFI 10.3.3.3 100 UP
The following sample output from the show vfi command provides information about the VFI:
VPLS-A# show vfi PE1-VPLS-A
VFI name: VPLSA, state: up
Local attachment circuits:
Vlan200
Neighbors connected via pseudowires:
10.2.2.2 10.3.3.3
The following sample output from the show mpls 12transport vc command provides information about virtual circuits:
VPLS-A# show mpls l2transport vc detail
Local interface: VFI PE1-VPLS-A up
Destination address: 10.2.2.2, VC ID: 100, VC status: up
Tunnel label: imp-null, next hop point2point
Output interface: PO3/4, imposed label stack {18}
Create time: 3d15h, last status change time: 1d03h
Signaling protocol: LDP, peer 10.2.2.2:0 up
MPLS VC labels: local 18, remote 18
Group ID: local 0, remote 0
MTU: local 1500, remote 1500
Remote interface description:
Sequencing: receive disabled, send disabled
VC statistics:
packet totals: receive 0, send 0
byte totals: receive 0, send 0
packet drops: receive 0, send 0
Example: Full-Mesh Configuration : Alternate Configuration
In a full-mesh configuration, each provider edge (PE) router creates a multipoint-to-multipoint forwarding relationship with all other PE routers in the Virtual Private LAN Services (VPLS) domain using a virtual forwarding interface (VFI). An Ethernet or virtual LAN (VLAN) packet received from the customer network can be forwarded to one or more local interfaces and/or emulated virtual circuits (VCs) in the VPLS domain. To avoid broadcasted packets looping in the network, no packet received from an emulated VC can be forwarded to any emulated VC of the VPLS domain on a PE router. That is, Layer 2 split horizon should always be enabled as the default in a full-mesh network.
PE 1 Configuration
The following example shows how to create virtual switch instances (VSIs) and associated VCs and to configure the CE device interface (there can be multiple Layer 2 interfaces in a VLAN):
interface gigabitethernet 1/0/0 service instance 100 ethernet encap dot1q 100 no shutdown ! l2vpn vfi context PE1-VPLS-A vpn id 100 neighbor 10.2.2.2 encapsulation mpls neighbor 10.3.3.3 encapsulation mpls ! bridge-domain 100 member gigabitethernet1/0/0 service-instance 100 member vfi PE1-VPLS-A
PE 2 Configuration
The following example shows how to create VSIs and associated VCs and to configure the CE device interface (there can be multiple Layer 2 interfaces in a VLAN):
interface gigabitethernet 1/0/0 service instance 100 ethernet encap dot1q 100 no shutdown ! l2vpn vfi context PE2-VPLS-A vpn id 100 neighbor 10.1.1.1 encapsulation mpls neighbor 10.3.3.3 encapsulation mpls ! bridge-domain 100 member gigabitethernet1/0/0 service-instance 100 member vfi PE2-VPLS-A
PE 3 Configuration
The following example shows how to create of the VSIs and associated VCs and to configure the CE device interface (there can be multiple Layer 2 interfaces in a VLAN):
interface gigabitethernet 1/0/0 service instance 100 ethernet encap dot1q 100 no shutdown ! l2vpn vfi context PE3-VPLS-A vpn id 100 neighbor 10.1.1.1 encapsulation mpls neighbor 10.2.2.2 encapsulation mpls ! bridge-domain 100 member gigabitethernet1/0/0 service-instance 100 member vfi PE3-VPLS-A
The following sample output from the show mpls l2 vc command provides information on the status of the VC:
Device# show mpls l2 vc Local intf Local circuit Dest address VC ID Status ------------- -------------------- --------------- ---------- ---------- VFI PE3-VPLS-A VFI 10.2.2.2 100 UP VFI PE3-VPLS-A VFI 10.3.3.3 100 UP
The following sample output from the show l2vpn vfi command provides information about the VFI:
Device# show l2vpn vfi VPLS-2 Legend: RT= Route-target VFI name: serviceCore1, State: UP, Signaling Protocol: LDP VPN ID: 100, VPLS-ID: 9:10, Bridge-domain vlan: 100 RD: 9:10, RT: 10.10.10.10:150 Pseudo-port Interface: Virtual-Ethernet1000 Neighbors connected via pseudowires: Interface Peer Address VC ID Discovered Router ID Next Hop Pw2000 10.0.0.1 10 10.0.0.1 10.0.0.1 Pw2001 10.0.0.2 10 10.1.1.2 10.0.0.2 Pw2002 10.0.0.3 10 10.1.1.3 10.0.0.3 Pw5 10.0.0.4 10 - 10.0.0.4
The following sample output from the show l2vpn atom vc command provides information on the virtual circuits:
Device# show l2vpn atom vc Local intf Local circuit Dest address VC ID Status ------------- ----------------------- --------------- ---------- ---------- Et0/0.1 Eth VLAN 101 10.0.0.2 101 UP Et0/0.1 Eth VLAN 101 10.0.0.3 201 DOWN
Feature Information for Configuring Virtual Private LAN Services
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
Virtual Private LAN Services (VPLS) |
Cisco IOS XE Release 3.5S Cisco IOS XE Release 3.8S |
This feature enables you to configure dynamic Virtual Private LAN Services (VPLS). VPLS is a class of VPN that supports the connection of multiple sites in a single bridged domain over a managed IP/MPLS network. In Cisco IOS XE Release 3.5S, this feature was introduced on the Cisco ASR 903 Series Aggregation Services Routers. In Cisco IOS XE Release 3.8S, support was added for the Cisco ISR 4400 Series Routers. |
|
L2VPN Protocol-Based CLIs |
Cisco IOS XE Release 3.7S |
In Cisco IOS XE Release 3.7S, the L2VPN Protocol-Based CLIs feature was introduced. This feature provides a set of processes and an improved infrastructure for developing and delivering Cisco IOS software on various Cisco platforms. This feature introduces new commands and modifies or replaces existing commands to achieve a consistent functionality across Cisco platforms and provide cross-Operating System support. |
|
Static VPLS over MPLS-TP |
Cisco IOS XE Release 3.6S |
This features enables static VPLS to use MPLS Transport Profile. In Cisco IOS XE Release 3.6S, this feature was introduced on the Cisco ASR 903 Series Aggregation Services Routers. |
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