- L2VPN Protocol-Based CLIs
- Any Transport over MPLS
- L2VPN Interworking
- L2VPN Pseudowire Preferential Forwarding
- L2VPN Multisegment Pseudowires
- MPLS Quality of Service
- QoS Policy Support on L2VPN ATM PVPs
- MPLS Pseudowire Status Signaling
- L2VPN VPLS Inter-AS Option B
- IEEE 802.1Q Tunneling (QinQ) for AToM
- Configuring the Managed IPv6 Layer 2 Tunnel Protocol Network Server
- L2VPN Pseudowire Redundancy
- Pseudowire Group Switchover
- L2VPN Pseudowire Switching
- Xconnect as a Client of BFD
- H-VPLS N-PE Redundancy for QinQ Access
- H-VPLS N-PE Redundancy for MPLS Access
- VPLS MAC Address Withdrawal
- Configuring Virtual Private LAN Services
- Routed Pseudo-Wire and Routed VPLS
- VPLS Autodiscovery BGP Based
- N:1 PVC Mapping to PWE with Nonunique VPIs
- QoS Policies for VFI Pseudowires
- VPLS BGP Signaling L2VPN Inter-AS Option A
- VPLS BGP Signaling L2VPN Inter-AS Option B
- Frame Relay over L2TPv3
- Loop-Free Alternate Fast Reroute with L2VPN
Contents
- L2VPN Pseudowire Redundancy
- Finding Feature Information
- Prerequisites for L2VPN Pseudowire Redundancy
- Restrictions for L2VPN Pseudowire Redundancy
- Information About L2VPN Pseudowire Redundancy
- Introduction to L2VPN Pseudowire Redundancy
- How to Configure L2VPN Pseudowire Redundancy
- Configuring the Pseudowire
- Configuring the Pseudowire using the commands associated with the L2VPN Protocol-Based CLIs feature
- Configuring L2VPN Pseudowire Redundancy
- Configuring L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
- Forcing a Manual Switchover to the Backup Pseudowire VC
- Verifying the L2VPN Pseudowire Redundancy Configuration
- Verifying the L2VPN Pseudowire Redundancy Configuration using the commands associated with the L2VPN Protocol-Based CLIs feature
- Configuration Examples for L2VPN Pseudowire Redundancy
- Example L2VPN Pseudowire Redundancy and AToM (Like to Like)
- Example L2VPN Pseudowire Redundancy and L2VPN Interworking
- Example L2VPN Pseudowire Redundancy with Layer 2 Local Switching
- Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3
- Configuration Examples for L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
- Example L2VPN Pseudowire Redundancy and AToM (Like to Like) using the commands associated with the L2VPN Protocol-Based CLIs feature
- Example L2VPN Pseudowire Redundancy and L2VPN Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature
- Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3 using the commands associated with the L2VPN Protocol-Based CLIs feature
- Additional References
- Feature Information for L2VPN Pseudowire Redundancy
L2VPN Pseudowire Redundancy
The L2VPN Pseudowire Redundancy feature lets you configure your network to detect a failure in the network and reroute the Layer 2 (L2) service to another endpoint that can continue to provide service. This feature provides the ability to recover from a failure either of the remote provider edge (PE) router or of the link between the PE and customer edge (CE) routers.
- Finding Feature Information
- Prerequisites for L2VPN Pseudowire Redundancy
- Restrictions for L2VPN Pseudowire Redundancy
- Information About L2VPN Pseudowire Redundancy
- How to Configure L2VPN Pseudowire Redundancy
- Configuration Examples for L2VPN Pseudowire Redundancy
- Configuration Examples for L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
- Additional References
- Feature Information for L2VPN Pseudowire Redundancy
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 L2VPN Pseudowire Redundancy
This feature module requires that you understand how to configure basic L2 virtual private networks (VPNs). - Any Transport over MPLS
- L2 VPN Interworking
- Layer 2 Tunneling Protocol Version 3 (L2TPv3)
The L2VPN Pseudowire Redundancy feature requires that the following mechanisms be in place to enable you to detect a failure in the network: - Label-switched paths (LSP) Ping/Traceroute and Any Transport over MPLS Virtual Circuit Connection Verification (AToM VCCV)
- Local Management Interface (LMI)
- Operation, Administration, and Maintenance (OAM)
Restrictions for L2VPN Pseudowire Redundancy
- The default Label Distribution Protocol (LDP) session hold-down timer will enable the software to detect failures in about 180 seconds. That time can be configured so that the software can detect failures more quickly. See the mpls ldp holdtime command for more information.
- L2VPN Pseudowire Redundancy does not support pseudowire interworking mode with L2TPv3. The connectivity between CEs may be impacted if you have interworking IP configured in the pseudowire class.
- The primary and backup pseudowires must run the same type of transport service. The primary and backup pseudowires must be configured with AToM or L2TPv3.
- The backup peer can only be configured for nonstatic L2TPv3 sessions. The backup L2TPv3 session cannot be static L2TPv3 session. The encapsulation type of primary and backup pseudowire must be the same.
- If you use L2VPN Pseudowire Redundancy with L2VPN Interworking, the interworking method must be the same for the primary and backup pseudowires.
- L2VPN Pseudowire Redundancy does support setting the experimental (EXP) bit on the Multiprotocol Label Switching (MPLS) pseudowire.
- L2VPN Pseudowire Redundancy does not support different pseudowire encapsulation types on the MPLS pseudowire.
- The mpls l2transport route command is not supported. Use the xconnect command instead.
- The ability to have the backup pseudowire fully operational at the same time that the primary pseudowire is operational is not supported. The backup pseudowire becomes active only after the primary pseudowire fails.
- The AToM VCCV feature is supported only on the active pseudowire.
- More than one backup pseudowire is not supported.
Information About L2VPN Pseudowire Redundancy
Introduction to L2VPN Pseudowire Redundancy
L2VPNs can provide pseudowire resiliency through their routing protocols. When connectivity between end-to-end PE routers fails, an alternative path to the directed LDP session and the user data can take over. However, there are some parts of the network where this rerouting mechanism does not protect against interruptions in service. The figure below shows those parts of the network that are vulnerable to an interruption in service.
The L2VPN Pseudowire Redundancy feature provides the ability to ensure that the CE2 router in the figure above can always maintain network connectivity, even if one or all the failures in the figure occur.
The L2VPN Pseudowire Redundancy feature enables you to set up backup pseudowires. You can configure the network with redundant pseudowires and redundant network elements, which are shown in the three figures below.
The figure below shows a network with redundant pseudowires and redundant attachment circuits.
The figure below shows a network with redundant pseudowires, attachment circuits, and CE routers.
The figure below shows a network with redundant pseudowires, attachment circuits, CE routers, and PE routers.
How to Configure L2VPN Pseudowire Redundancy
The L2VPN Pseudowire Redundancy feature enables you to configure a backup pseudowire in case the primary pseudowire fails. When the primary pseudowire fails, the PE router can switch to the backup pseudowire. You can have the primary pseudowire resume operation after it comes back up.
- Configuring the Pseudowire
- Configuring the Pseudowire using the commands associated with the L2VPN Protocol-Based CLIs feature
- Configuring L2VPN Pseudowire Redundancy
- Configuring L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
- Forcing a Manual Switchover to the Backup Pseudowire VC
- Verifying the L2VPN Pseudowire Redundancy Configuration
- Verifying the L2VPN Pseudowire Redundancy Configuration using the commands associated with the L2VPN Protocol-Based CLIs feature
Configuring the Pseudowire
The successful transmission of the Layer 2 frames between PE routers is due to the configuration of the PE routers. You set up the connection, called a pseudowire, between the routers.
The pseudowire-class configuration group specifies the characteristics of the tunneling mechanism, which are:
- Encapsulation type
- Control protocol
- Payload-specific options
You must specify the encapsulation mplscommand as part of the pseudowire class for the AToM VCs to work properly. If you omit the encapsulation mplscommand as part of the xconnectcommand, you receive the following error:
% Incomplete command.
Perform this task to configure a pseudowire class.
1.
enable
2.
configure
terminal
3.
pseudowire-class
name
4.
encapsulation
mpls
5.
interworking
{ethernet | ip}
DETAILED STEPS
Configuring the Pseudowire using the commands associated with the L2VPN Protocol-Based CLIs feature
The successful transmission of the Layer 2 frames between PE routers is due to the configuration of the PE routers. You set up the connection, called a pseudowire, between the routers.
The pseudowire-class configuration group specifies the characteristics of the tunneling mechanism, which are:
You must specify the encapsulation mplscommand as part of the pseudowire class for the AToM VCs to work properly. If you omit the encapsulation mplscommand as part of the l2vpn xconnectcontext command, you receive the following error:
% Incomplete command.
Perform this task to configure a pseudowire class.
1.
enable
2.
configure
terminal
3.
interface pseudowire
number
4.
encapsulation
mpls
5.
neighbor
peer-address
vcid-value
6.
interworking
{ethernet | ip}
DETAILED STEPS
Configuring L2VPN Pseudowire Redundancy
Perform this task to configure the L2VPN Pseudowire Redundancy feature.
For each transport type, the xconnectcommand is configured slightly differently. The following configuration steps use Ethernet VLAN over MPLS, which is configured in subinterface configuration mode. See Any Transport over MPLS to determine how to configure the xconnect command for other transport types.
1.
enable
2.
configure
terminal
3.
interface
gigabitethernet
slot
/
subslot
/
interface
.
subinterface
4.
encapsulation
dot1q
vlan-id
5.
xconnect
peer-router-id
vcid
{encapsulation mpls| pw-class pw-class-name}
6.
backup
peer
peer-router-ip-addr
vcid
[pw-class pw-class-name]
7.
backup
delay
e
nable-delay
{disable-delay | never}
DETAILED STEPS
Configuring L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
Perform this task to configure the L2VPN Pseudowire Redundancy feature.
For each transport type, the l2vpn xconnect context command is configured slightly differently. The following configuration steps use Ethernet VLAN over MPLS, which is configured in subinterface configuration mode. See Any Transport over MPLS to determine how to configure the l2vpn xconnect context command for other transport types.
1.
enable
2.
configure
terminal
3.
interface
gigabitethernet
slot
/
subslot
/
interface
.
subinterface
4.
encapsulation
dot1q
vlan-id
5.
end
6.
interface
pseudowire
number
7.
source
template type pseudowire
template-name
8.
neighbor
peer-address vcid-value
9.
exit
10.
l2vpn xconnect
context
context-name
11.
member pseudowire
interface-number
12.
member pseudowire
interface-number
13.
member gigabitethernet
interface-number
14.
redundancy
delay
enable-delay{disable-delay | never}
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
/
subslot
/
interface
.
subinterface
Example: Device(config)# interface gigabitethernet0/0/0.1 |
Specifies the Gigabit Ethernet subinterface and enters subinterface configuration mode. Make sure that the subinterface on the adjoining CE router is on the same VLAN as this PE router. |
| Step 4 |
encapsulation
dot1q
vlan-id Example: Device(config-subif)# encapsulation dot1q 100 |
Enables the subinterface to accept 802.1Q VLAN packets. The subinterfaces between the CE and PE routers that are running Ethernet over MPLS must be in the same subnet. All other subinterfaces and backbone routers do not. |
| Step 5 |
end
Example: Router(config-subif)# end |
Exits to privileged EXEC mode. |
| Step 6 |
interface
pseudowire
number
Example: Router(config)# interface pseudowire 100 |
Specifies the pseudowire interface and enters interface configuration mode. |
| Step 7 |
source
template type pseudowire
template-name Example: Router(config-if)# source template type pseudowire atom |
Configures the source template of type pseudowire named atom |
| Step 8 |
neighbor
peer-address vcid-value Example: Router(config-if)# neighbor 10.0.0.1 123 |
Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire. |
| Step 9 |
exit
Example: Router(config-if)# exit |
Exits to privileged EXEC mode. |
| Step 10 |
l2vpn xconnect
context
context-name
Example: Router(config)# l2vpn xconnect context con1 |
Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode. |
| Step 11 |
member pseudowire
interface-number
Example: Device(config-xconnect)# member pseudowire 100 group GR_1 priority 2 |
Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect. |
| Step 12 |
member pseudowire
interface-number
Example: Device(config-xconnect)# member pseudowire 1001 group GR_1 priority 2 |
Specifies a second member pseudowire for redundancy. |
| Step 13 |
member gigabitethernet
interface-number
Example: Device(config-xconnect)# member GigabitEthernet0/0/0.1 service instance 1 |
Specifies the location of the Gigabit Ethernet member interface. |
| Step 14 |
redundancy
delay
enable-delay{disable-delay | never} Example: Device(config-xconnect)# redundancy delay 0 0 group GR_1 |
Specifies how long (in seconds) the backup pseudowire VC should wait to take over after the primary pseudowire VC goes down. The range is 0 to 180. Specifies how long the primary pseudowire should wait after it becomes active to take over for the backup pseudowire VC. The range is 0 to 180 seconds. If you specify the never keyword, the primary pseudowire VC never takes over for the backup. |
Forcing a Manual Switchover to the Backup Pseudowire VC
To force the router switch over to the backup or primary pseudowire, you can enter the xconnect backup force switchover command in privileged EXEC mode. You can specify either the interface of the primary attachment circuit (AC) to switch to or the IP address and VC ID of the peer router.
A manual switchover can be made only if the interface or peer specified in the command is actually available and the xconnect moves to the fully active state when executing the command.
1.
enable
2.
xconnect
backup
force-switchover
{
interface
interface-info
| peer ip-address vcid}
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
| Step 1 |
enable
Example: Router> enable |
Enables privileged EXEC mode.
|
| Step 2 |
xconnect
backup
force-switchover
{
interface
interface-info
| peer ip-address vcid} Example: Router# xconnect backup force-switchover peer 10.10.10.1 123 |
Specifies that the router should switch to the backup or to the primary pseudowire. |
Verifying the L2VPN Pseudowire Redundancy Configuration
Perform this task to verify that the L2VPN Pseudowire Redundancy feature is correctly configured.
1.
show
mpls
l2transport
vc
2.
show
xconnect
all
3.
xconnect
logging
redundancy
DETAILED STEPS
| Step 1 |
show
mpls
l2transport
vc
The following is sample output from the show mpls l2transport vc command. In this example, the primary attachment circuit is up. The backup attachment circuit is available, but not currently selected. Example: Router# show mpls l2transport 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 Router# show mpls l2transport vc detail Local interface: Et0/0.1 up, line protocol up, Eth VLAN 101 up Destination address 10.0.0.2 VC ID: 101, VC status UP . . . Local interface: Et0/0.1 down, line protocol down, Eth VLAN 101 down Destination address 10.0.0.3 VC ID: 201, VC status down . . . |
| Step 2 |
show
xconnect
all
In this example, the topology is Attachment Circuit 1 to Pseudowire 1 with a Pseudowire 2 as a backup: Example: Router# show xconnect all Legend: XC ST=Xconnect State, S1=Segment1 State, S2=Segment2 State UP=Up, DN=Down, AD=Admin Down, IA=Inactive, NH=No Hardware XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP pri ac Et0/0(Ethernet) UP mpls 10.55.55.2:1000 UP IA sec ac Et0/0(Ethernet) UP mpls 10.55.55.3:1001 DN In this example, the topology is Attachment Circuit 1 to Attachment Circuit 2 with a pseudowire backup for Attachment Circuit 2: Example: Router# show xconnect all Legend: XC ST=Xconnect State, S1=Segment1 State, S2=Segment2 State UP=Up, DN=Down, AD=Admin Down, IA=Inactive, NH=No Hardware XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP pri ac Se6/0:150(FR DLCI) UP ac Se8/0:150(FR DLCI) UP IA sec ac Se6/0:150(FR DLCI) UP mpls 10.55.55.3:7151 DN |
| Step 3 |
xconnect
logging
redundancy
In addition to the show mpls l2transport vc command and the show xconnect command, you can use the xconnect logging redundancy command to track the status of the xconnect redundancy group: Example: Router(config)# xconnect logging redundancy When this command is configured, the following messages are displayed during switchover events: Activating the primary member: Example: 00:01:07: %XCONNECT-5-REDUNDANCY: Activating primary member 10.55.55.2:1000 Activating the backup member: Example: 00:01:05: %XCONNECT-5-REDUNDANCY: Activating secondary member 10.55.55.3:1001 |
Verifying the L2VPN Pseudowire Redundancy Configuration using the commands associated with the L2VPN Protocol-Based CLIs feature
Use the following commands to verify that the L2VPN Pseudowire Redundancy feature is correctly configured.
1.
show
l2vpn
atom
vc
2.
show
l2vpn
service all
3.
logging
redundancy
4.
logging
pseudowire status
DETAILED STEPS
| Step 1 |
show
l2vpn
atom
vc
In this example, the primary attachment circuit is up. The backup attachment circuit is available, but not currently selected. The show output displays as follows: Example: 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 Router# show l2vpn atom vc detail Local interface: Et0/0.1 up, line protocol up, Eth VLAN 101 up Destination address 10.0.0.2 VC ID: 101, VC status UP . . . Local interface: Et0/0.1 down, line protocol down, Eth VLAN 101 down Destination address 10.0.0.3 VC ID: 201, VC status down . . . |
| Step 2 |
show
l2vpn
service all
In this example, the topology is attachment circuit 1 to pseudowire 1 with apPseudowire 2 as a backup: Example:
Device# show l2vpn service all
Legend: St=State XC St=State in the L2VPN Service Prio=Priority
UP=Up DN=Down AD=Admin Down IA=Inactive
SB=Standby HS=Hot Standby RV=Recovering NH=No Hardware
m=manually selected
Interface Group Encapsulation Prio St XC St
--------- ----- ------------- ---- -- -----
VPWS name: foo, State: UP
Eth1/1.1 Eth1/1.1:100(Eth VLAN) 0 UP UP
pw101 blue 102.1.1.1:100(MPLS) 2 UP UP
pw102 blue 103.1.1.1:100(MPLS) 5 SB IA
pw103 blue 104.1.1.1:100(MPLS) 8 SB IA
pw104 blue 105.1.1.1:100(MPLS) 11 SB IA
In this example, the topology is attachment circuit 1 to attachment circuit 2 with a pseudowire backup for attachment circuit 2: Example: Device# show l2vpn service all Legend: XC ST=Xconnect State, S1=Segment1 State, S2=Segment2 State UP=Up, DN=Down, AD=Admin Down, IA=Inactive, NH=No Hardware XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP pri ac Se6/0:150(FR DLCI) UP ac Se8/0:150(FR DLCI) UP IA sec ac Se6/0:150(FR DLCI) UP mpls 10.55.55.3:7151 DN |
| Step 3 |
logging
redundancy
In addition to the show l2vpn atom vc command and the show l2vpn service command, you can use the logging redundancy command to enable system message log (syslog) reporting of xconnect redundancy status events: Example: Device(config)# l2vpn Device(config-l2vpn)# logging redundancy When this command is configured, the messages below will be generated during switchover events: Activating the primary member: Example: Device(config)# l2vpn Device(config-l2vpn)# logging pseudowire status When this command is configured, this is configured the status of the pseudowire can be monitored: Activating the primary member: Example: 00:01:07: %XCONNECT-5-REDUNDANCY: Activating primary member 10.55.55.2:1000 Activating the backup member: Example: 00:01:05: %XCONNECT-5-REDUNDANCY: Activating secondary member 10.55.55.3:1001 |
| Step 4 |
logging
pseudowire status
you can use the logging pseudowire status command to monitor the status of the pseudowire. Example: Device(config)# l2vpn Device(config-l2vpn)# logging pseudowire status |
Configuration Examples for L2VPN Pseudowire Redundancy
Each of the configuration examples refers to one of the following pseudowire classes:
- AToM (like-to-like) pseudowire class:
pseudowire-class mpls encapsulation mpls
- L2VPN IP interworking:
pseudowire-class mpls-ip encapsulation mpls interworking ip
- Example L2VPN Pseudowire Redundancy and AToM (Like to Like)
- Example L2VPN Pseudowire Redundancy and L2VPN Interworking
- Example L2VPN Pseudowire Redundancy with Layer 2 Local Switching
- Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3
Example L2VPN Pseudowire Redundancy and AToM (Like to Like)
The following example shows a High-Level Data Link Control (HDLC) attachment circuit xconnect with a backup pseudowire:
interface Serial4/0 xconnect 10.55.55.2 4000 pw-class mpls backup peer 10.55.55.3 4001 pw-class mpls
The following example shows a Frame Relay attachment circuit xconnect with a backup pseudowire:
connect fr-fr-pw Serial6/0 225 l2transport xconnect 10.55.55.2 5225 pw-class mpls backup peer 10.55.55.3 5226 pw-class mpls
Example L2VPN Pseudowire Redundancy and L2VPN Interworking
The following example shows an Ethernet attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Ethernet0/0 xconnect 10.55.55.2 1000 pw-class mpls-ip backup peer 10.55.55.3 1001 pw-class mpls-ip
The following example shows an Ethernet VLAN attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Ethernet1/0.1 encapsulation dot1Q 200 no ip directed-broadcast xconnect 10.55.55.2 5200 pw-class mpls-ip backup peer 10.55.55.3 5201 pw-class mpls-ip
The following example shows a Frame Relay attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
connect fr-ppp-pw Serial6/0 250 l2transport xconnect 10.55.55.2 8250 pw-class mpls-ip backup peer 10.55.55.3 8251 pw-class mpls-ip
The following example shows a PPP attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Serial7/0 encapsulation ppp xconnect 10.55.55.2 2175 pw-class mpls-ip backup peer 10.55.55.3 2176 pw-class mpls-ip
Example L2VPN Pseudowire Redundancy with Layer 2 Local Switching
The following example shows an Ethernet VLAN-VLAN local switching xconnect with a pseudowire backup for Ethernet segment E2/0.2. If the subinterface associated with E2/0.2 goes down, the backup pseudowire is activated:
connect vlan-vlan Ethernet1/0.2 Ethernet2/0.2 backup peer 10.55.55.3 1101 pw-class mpls
The following example shows a Frame Relay-to-Frame Relay local switching connect with a pseudowire backup for Frame Relay segment S8/0 150. If data-link connection identifier (DLCI) 150 on S8/0 goes down, the backup pseudowire is activated:
connect fr-fr-ls Serial6/0 150 Serial8/0 150 backup peer 10.55.55.3 7151 pw-class mpls
Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3
The following example shows how to configure a backup peer for an xconnect session:
pseudowire-class 773 encapsulation l2tpv3 ip local interface GigabitEthernet0/0/0.773 ! pseudowire-class 774 encapsulation l2tpv3 ip local interface GigabitEthernet0/0/1.774 ! interface GigabitEthernet0/0/0.780 encapsulation dot1Q 780 xconnect 10.22.73.14 100 pw-class 773 backup peer 10.22.74.14 101 pw-class 774 backup delay 0 0
The following example shows how to configure a Gigabit Ethernet port with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/2 xconnect 10.22.70.83 50 pw-class pe1-pw-primary backup peer 20.22.70.85 51 pw-class pe1-pw-secondary
The following example shows how to configure a Gigabit Ethernet VLAN with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.100 encapsulation dot1q 100 xconnect 10.22.70.83 60 pw-class pe1-pw-primary backup peer 10.22.70.85 61 pw-class pe1-pw-secondary
The following example shows how to configure a Gigabit Ethernet Q-in-Q with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.200 encapsulation dot1q 200 second-dot1q 400 xconnect 10.22.70.83 70 pw-class pe1-pw-primary backup peer 10.22.70.85 71 pw-class pe1-pw-secondary
The following example shows how to configure a Gigabit Ethernet Q-in-any with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.300 encapsulation dot1q 300 second-dot1q any xconnect 10.22.70.83 80 pw-class pe1-pw-primary backup peer 10.22.70.85 81 pw-class pe1-pw-secondary
The following example shows how to configure an HDLC with L2VPN pseudowire redundancy and L2TPv3
interface Serial0/2/0:0 no ip address xconnect 10.22.71.83 40 pw-class pe1-pw-hdlc backup peer 10.22.70.85 41 pw-class pe1-pw-hdlc-2
Configuration Examples for L2VPN Pseudowire Redundancy using the commands associated with the L2VPN Protocol-Based CLIs feature
Each of the configuration examples refers to one of the following interface pseudowires:
interface pseudowire 1 encapsulation mpls neighbor 33.33.33.33 1
interface pseudowire 1 encapsulation mpls neighbor 33.33.33.33 1 interworking ip
- Example L2VPN Pseudowire Redundancy and AToM (Like to Like) using the commands associated with the L2VPN Protocol-Based CLIs feature
- Example L2VPN Pseudowire Redundancy and L2VPN Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature
- Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3 using the commands associated with the L2VPN Protocol-Based CLIs feature
Example L2VPN Pseudowire Redundancy and AToM (Like to Like) using the commands associated with the L2VPN Protocol-Based CLIs feature
The following example shows a High-Level Data Link Control (HDLC) attachment circuit xconnect with a backup pseudowire:
interface Serial4/0 interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.55.55.3 4001 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1
The following example shows a Frame Relay attachment circuit xconnect with a backup pseudowire:
connect fr-fr-pw Serial6/0 225 l2transport interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.55.55.3 5226 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1
Example L2VPN Pseudowire Redundancy and L2VPN Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature
The following example shows an Ethernet attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Ethernet0/0 interface pseudowire 100 source template type pseudowire ether-pw ! l2vpn xconnect context con1 member pseudowrire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows an Ethernet VLAN attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Ethernet1/0.1 encapsulation dot1Q 200 no ip directed-broadcast interface pseudowire 100 source template type pseudowire ether-pw ! l2vpn xconnect context con1 member pseudowrire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows a Frame Relay attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
connect fr-ppp-pw Serial6/0 250 l2transport interface pseudowire 100 source template type pseudowire ether-pw ! l2vpn xconnect context con1 member pseudowrire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows a PPP attachment circuit xconnect with L2VPN IP interworking and a backup pseudowire:
interface Serial7/0 encapsulation ppp interface pseudowire 100 source template type pseudowire ether-pw ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
Example L2VPN Pseudowire Redundancy and Layer 2 Tunneling Protocol Version 3 using the commands associated with the L2VPN Protocol-Based CLIs feature
The following example shows how to configure a backup peer for an xconnect session:
interface pseudowire 773 encapsulation l2tpv3 ip local interface GigabitEthernet0/0/0.773 ! interface pseudowire 774 encapsulation l2tpv3 ip local interface GigabitEthernet0/0/1.774 ! interface GigabitEthernet0/0/0.780 encapsulation dot1Q 780 interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.73.14 100 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows how to configure a Gigabit Ethernet port with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/2 interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.70.83 50 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows how to configure a Gigabit Ethernet VLAN with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.100 encapsulation dot1q 100 interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.70.83 60 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows how to configure a Gigabit Ethernet Q-in-Q with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.200 encapsulation dot1q 200 second-dot1q 400 interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.70.83 70 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows how to configure a Gigabit Ethernet Q-in-any with L2VPN pseudowire redundancy and L2TPv3:
interface GigabitEthernet0/0/0.300 encapsulation dot1q 300 second-dot1q any interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.70.83 80 ! l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
The following example shows how to configure an HDLC with L2VPN pseudowire redundancy and L2TPv3
interface Serial0/2/0:0 no ip address interface pseudowire 100 source template type pseudowire ether-pw neighbor 10.22.71.83 40 ! l2vpn xconnect context con1 l2vpn xconnect context con1 member pseudowire 100 group GR_1 priority 1 member pseudowire 1001 group GR_1 priority 2 member GigabitEthernet0/0/2 service-instance 1 redundancy delay 0 0 group GR_1 interworking ip
Additional References
Related Documents
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Related Topic |
Document Title |
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Cisco IOS commands |
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Wide-area networking commands |
Cisco IOS Wide-Area Networking Command Reference |
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Cisco IOS XE Multiprotocol Label Switching configuration tasks |
Cisco IOS XE Multiprotocol Label Switching Configuration Guide |
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Cisco IOS XE Wide-area networking configuration tasks |
Cisco IOS XE Wide-Area Networking Configuration Guide |
Standards
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MIBs
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No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature. |
To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL: |
RFCs
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Technical Assistance
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Description |
Link |
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The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for L2VPN Pseudowire Redundancy
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.
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Feature Name |
Releases |
Feature Information |
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L2VPN Pseudowire Redundancy |
XE 2.3 XE 3.3S |
This feature enables you to set up your network to detect a failure in the network and reroute the Layer 2 service to another endpoint that can continue to provide service. In Cisco IOS XE Release 2.3, this feature was integrated into the Cisco ASR 1000 Series Aggregation Service Routers. In Cisco IOS XE Release 3.3S, this feature supports Layer 2 Tunneling Protocol Version 3 (L2TPv3). The following commands were introduced or modified: backup delay (L2VPN local switching), backup peer, show xconnect, xconnect backup force-switchover, xconnect logging redundancy. |