Configuring EVPN VXLAN Layer 3 Overlay Network

Information About EVPN VXLAN Layer 3 Overlay Network

An EVPN VXLAN Layer 3 overlay network allows host devices in different Layer 2 networks to send Layer 3 or routed traffic to each other. The network forwards the routed traffic using a Layer 3 virtual network instance (VNI) and an IP VRF.

This module provides information only about how to configure a Layer 3 overlay network. You can also configure both Layer 2 and Layer 3 overlay networks together to enable integrated routing and bridging (IRB). For more information about IRB, see Configuring EVPN VXLAN Integrated Routing and Bridging module.

The following figure shows the movement of traffic in an EVPN VXLAN Layer 3 overlay network using a Layer 3 VNI:

How to Configure EVPN VXLAN Layer 3 Overlay Network

The following figure shows a sample topology of an EVPN VXLAN Network. Host device 3 and host device 5 are part of different subnets. The network forwards traffic from host device 1 to host device 3 using a Layer 3 VNI and an IP VRF.


Note

In a two-VTEP topology, a spine switch is not mandatory. For information about configuration of spine switches in an EVPN VXLAN network, see Configuring Spine Switches in a BGP EVPN VXLAN Fabric module.

Perform the following set of procedures to configure an EVPN VXLAN Layer 3 overlay network:

  • Configure the IP VRF on the VTEPs.

  • Configure the core-facing VLAN on the VTEPs.

  • Configure the access-facing VLAN on the VTEPs.

  • Configure the switch virtual interface (SVI) for the core-facing VLAN.

  • Configure the SVI for the access-facing VLAN.

  • Configure the loopback interface on the VTEPs.

  • Configure the network virtualization endpoint (NVE) interface on the VTEPs.

  • Configure BGP with either IPv4 or IPv6 or both address families on the VTEPs.

Configuring an IP VRF on a VTEP

To configure an IP VRF on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

vrf definition vrf-name

Example:

Device(config)# vrf definition Green

Enters the VRF configuration mode for the specified VRF instance.

Step 4

rd vpn-route-distinguisher

Example:

Device(config-vrf)# rd 100:1

Specifies the route distinguisher for the VRF instance.
Step 5

address-family ipv4 [ multicast | unicast]

Example:

Device(config-vrf)# address-family ipv4

Enters the IPv4 address family configuration mode.
Step 6

route-target { export | import | both} route-target-ext-community

Example:

Device(config-vrf-af)# route-target export 100:1

Example:

Device(config-vrf-af)# route-target import 100:1

Creates a list of import, export, or both import and export route target communities for the specified VRF.

Enter either an autonomous system number and an arbitrary number (xxx:y), or an IP address and an arbitrary number (A.B.C.D:y).

Step 7

route-target { export | import | both} route-target-ext-community stitching

Example:

Device(config-vrf-af)# route-target export 100:1 stitching

Example:

Device(config-vrf-af)# route-target import 100:1 stitching

Configures importing, exporting, or both importing and exporting of EVPN route target communities for the VRF.

Step 8

exit-address-family

Example:

Device(config-vrf-af)# exit-address-family

Exits VRF address family configuration mode and enters VRF configuration mode.

Step 9

address-family ipv6 [ multicast | unicast]

Example:

Device(config-vrf)# address-family ipv6

Enters the IPv6 address family configuration mode.

Step 10

route-target { export | import | both} route-target-ext-community

Example:

Device(config-vrf-af)# route-target export 100:1

Example:

Device(config-vrf-af)# route-target import 100:1

Creates a list of import, export, or both import and export route target communities for the specified VRF.

Enter either an autonomous system number and an arbitrary number (xxx:y), or an IP address and an arbitrary number (A.B.C.D:y).

Step 11

route-target { export | import | both} route-target-ext-community stitching

Example:

Device(config-vrf-af)# route-target export 100:1 stitching

Example:

Device(config-vrf-af)# route-target import 100:1 stitching

Configures importing, exporting, or both importing and exporting of VXLAN route target communities for the VRF.

Step 12

exit-address-family

Example:

Device(config-vrf-af)# exit-address-family

Exits VRF address family configuration mode and enters VRF configuration mode.

Step 13

end

Example:

Device(config-vrf)# end

Returns to privileged EXEC mode.

Configuring the Core-facing VLAN on a VTEP

To configure the core-facing VLAN on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

vlan configuration vlan-id

Example:

Device(config)# vlan configuration 11

Enters VLAN feature configuration mode for the specified VLAN interface.

Step 4

member vni l3-vni-number

Example:

Device(config-vlan)# member vni 5000

Adds EVPN instance as a member of the VLAN configuration.

The VNI here is used as a Layer 3 VNI.
Step 5

end

Example:

Device(config-vlan)# end

Returns to privileged EXEC mode.

Configuring Access-facing VLAN on a VTEP

To configure the access-facing VLAN on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

interface interface-name

Example:

Device(config)# interface GigabitEthernet1/0/1

Enters interface configuration mode for the specified interface.
Step 4

switchport access vlan vlan-id

Example:

Device(config-if)# switchport access vlan 40

Configures the interface as a static-access port of the specified VLAN.

Interface can also be configured as a trunk interface, if required.

Step 5

end

Example:

Device(config-if)# end

Returns to privileged EXEC mode.

Configuring Switch Virtual Interface for the Core-facing VLAN

To configure an SVI for the core-facing VLAN on the VTEP:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

interface vlan vlan-id

Example:

Device(config)# interface vlan 11

Enters interface configuration mode for the specified VLAN.
Step 4

vrf forwarding vrf-name

Example:

Device(config-if)# vrf forwarding Green

Configures the SVI for the VLAN.
Step 5

ip unnumberedLoopback-interface

Example:

Device(config-if)# ip unnumbered Loopback0

Enables IP processing on the Loopback interface without assigning an explicit IP address to the interface.
Step 6

no autostate

Example:

Device(config-if)# no autostate

Disables autostate on the interface.

In EVPN deployments, once a VLAN is used for a core-facing SVI, it should not be allowed in any trunk. For a core-facing SVI to function properly, the no autostate command must be configured under the SVI.

Step 7

end

Example:

Device(config-if)# end

Returns to privileged EXEC mode.

Configuring the Switch Virtual Interface for the Access-facing VLANs

To configure the SVI for the access-facing VLAN on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

interface vlan vlan-id

Example:

Device(config)# interface vlan 40

Enters interface configuration mode for the specified VLAN.
Step 4

vrf forwarding vrf-name

Example:

Device(config-if)# vrf forwarding Green

Configures the SVI for the VLAN.
Step 5

ip addressip-address

Example:

Device(config-if)# ip address 192.168.10.100 255.255.255.0

Configures the IP address of the SVI.
Step 6

mac-addressmac-address-value

Example:

Device(config-if)# mac-address aabb.cc01.f100

(Optional) Manually sets the MAC address for the VLAN interface.
Step 7

exit

Example:

Device(config-if)# exit

Returns to global configuration mode.
Step 8

end

Example:

Device(config-if)# end

Returns to privileged EXEC mode.

Configuring the Loopback Interface on a VTEP

To configure the loopback interface on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

interface loopback-interface-id

Example:

Device(config)# interface Loopback0

Enters interface configuration mode for the specified Loopback interface.
Step 4

ip address ipv4-address

Example:

Device(config-if)# ip address 10.12.11.11 255.255.255.255

Configures the IP address for the Loopback interface.
Step 5

ip pim sparse mode

Example:

Device(config-if)# ip pim sparse mode

(Optional) Enables Protocol Independent Multicast (PIM) sparse mode on the Loopback interface.

Note 

Enable PIM sparse mode only if EVPN VXLAN Layer 2 overlay network is also configured on the VTEP with underlay multicast as the mechanism for forwarding BUM traffic.

Step 6

end

Example:

Device(config-vlan)# end

Returns to privileged EXEC mode.

Configuring the NVE Interface on a VTEP

To add a Layer 3 VNI member to the NVE interface on a VTEP, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

interface nve-interface-id

Example:

Device(config)# interface nve1

Defines the interface to be configured as a trunk, and enters interface configuration mode.

Step 4

no ip address

Example:

Device(config-if)# no ip address

Disables IP processing on the interface by removing its IP address.
Step 5

source-interface loopback-interface-id

Example:

Device(config-if)# source-interface loopback0

Sets the IP address of the specified loopback interface as the source IP address.
Step 6

host-reachability protocol bgp

Example:

Device(config-if)# host-reachability protocol bgp

Configures BGP as the host-reachability protocol on the interface.

Step 7

member vni vni-id vrf vrf-name

Example:

Device(config-if)# member vni 5000 vrf Green

Associates the Layer 3 VNI id with the NVE interface.

Note 

The Layer 3 VNI id must match with the VNI id configured in the core VLAN on the VTEP.
Step 8

end

Example:

Device(config-if)# end

Returns to privileged EXEC mode.

Configuring BGP with IPv4 or IPv6 or Both Address Families on VTEP

To configure BGP on a VTEP with IPv4 or IPv6 or both address families and a spine switch as the neighbor, perform the following steps:

Procedure

  Command or Action Purpose
Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.
Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.
Step 3

router bgp autonomous-system-number

Example:

Device(config)# router bgp 1

Enables a BGP routing process, assigns it an autonomous system number, and enters router configuration mode.

Step 4

bgp log-neighbor-changes

Example:

Device(config-router)# bgp log-neighbor-changes

(Optional) Enables the generation of logging messages when the status of a BGP neighbor changes.

For more information, see Configuring BGP module of the IP Routing Configuration Guide.

Step 5

bgp update-delay time-period

Example:

Device(config-router)# bgp update-delay 1

(Optional) Sets the maximum initial delay period before sending the first update.

For more information, see Configuring BGP module of the IP Routing Configuration Guide.

Step 6

bgp graceful-restart

Example:

Device(config-router)# bgp graceful-restart

(Optional) Enables the BGP graceful restart capability for all BGP neighbors.

For more information, see Configuring BGP module of the IP Routing Configuration Guide.

Step 7

no bgp default ipv4-unicast

Example:

Device(config-router)# no bgp default ipv4-unicast

(Optional) Disables default IPv4 unicast address family for BGP peering session establishment.

For more information, see Configuring BGP module of the IP Routing Configuration Guide.

Step 8

neighbor ip-address remote-as number

Example:

Device(config-router)# neighbor 10.11.11.11 remote-as 1

Defines multiprotocol-BGP neighbors. Under each neighbor, define the configuration.

Use the IP address of the spine switch as the neighbor IP address.

Step 9

neighbor { ip-address | group-name} update-source interface

Example:

Device(config-router)# neighbor 10.11.11.11 update-source Loopback0

Configures update source. Update source can be configured per neighbor or per peer-group.

Use the IP address of the spine switch as the neighbor IP address.

Step 10

address-family l2vpn evpn

Example:

Device(config-router)# address-family l2vpn evpn

Specifies the L2VPN address family and enters address family configuration mode.
Step 11

neighbor ip-address activate

Example:

Device(config-router-af)# neighbor 10.11.11.11 activate

Enables the exchange information from a BGP neighbor.

Use the IP address of the spine switch as the neighbor IP address.
Step 12

neighbor ip-address send-community [ both | extended | standard]

Example:

Device(config-router-af)# neighbor 10.11.11.11 send-community both

Specifies the communities attribute sent to a BGP neighbor.

Use the IP address of the spine switch as the neighbor IP address.
Step 13

exit-address-family

Example:

Device(config-router-af)# exit-address-family

Exits address family configuration mode and returns to router configuration mode.
Step 14

address-family ipv4 vrf vrf-name

Example:

Device(config-router)# address-family ipv4 vrf Green

Specifies the IPv4 address family and enters address family configuration mode.
Step 15

advertise l2vpn evpn

Example:

Device(config-router-af)# advertise l2vpn evpn

Advertises Layer 2 VPN EVPN routes within a tenant VRF in an EVPN VXLAN fabric.
Step 16

redistribute connected

Example:

Device(config-router-af)# redistribute connected

(Optional) Redistributes connected routes to BGP.
Step 17

redistribute static

Example:

Device(config-router-af)# redistribute static

(Optional) Redistributes static routes to BGP.
Step 18

exit-address-family

Example:

Device(config-router-af)# exit-address-family

Exits address family configuration mode and returns to router configuration mode.
Step 19

address-family ipv6 vrf vrf-name

Example:

Device(config-router)# address-family ipv6 vrf green

Specifies the IPv6 address family and enters address family configuration mode.
Step 20

advertise l2vpn evpn

Example:

Device(config-router-af)# advertise l2vpn evpn

Advertises Layer 2 VPN EVPN routes within a tenant VRF in an EVPN VXLAN fabric.
Step 21

redistribute connected

Example:

Device(config-router-af)# redistribute connected

(Optional) Redistributes connected routes to BGP.
Step 22

redistribute static

Example:

Device(config-router-af)# redistribute static

(Optional) Redistributes static routes to BGP.
Step 23

exit-address-family

Example:

Device(config-router-af)# exit-address-family

Exits address family configuration mode and returns to router configuration mode.
Step 24

end

Example:

Device(config-router)# end

Returns to privileged EXEC mode.

Configuration Examples for EVPN VXLAN Layer 3 Overlay Network

This section provides an example for configuring an EVPN VXLAN Layer 3 overlay network. This example shows a sample configuration for a VXLAN network with 2 VTEPs, VTEP 1 and VTEP 2, connected to perform routing.


Note

In a two-VTEP topology, a spine switch is not mandatory. For information about configuration of spine switches in an EVPN VXLAN network, see Configuring Spine Switches in a BGP EVPN VXLAN Fabric module.

Table 1. Configuration Example for a VXLAN Network with Two VTEPs Connected to Perform Routing

VTEP 1

VTEP 2

 
VTEP1# show running-config
!
hostname VTEP1
!
!
vrf definition green
 rd 103:2
 !
 address-family ipv4
  route-target export 103:2
  route-target import 104:2
  route-target export 103:2 stitching
  route-target import 104:2 stitching
 exit-address-family
 !
 address-family ipv6
  route-target export 103:2
  route-target import 104:2
  route-target export 103:2 stitching
  route-target import 104:2 stitching
 exit-address-family
!
ip multicast-routing
ipv6 unicast-routing
!
!
system mtu 9150
!
vlan configuration 200
 member vni 5000
!
!
interface Loopback0
 ip address 10.1.1.10 255.255.255.255
 ip pim sparse-mode
!
interface Loopback13
 description demo only (for rt5 distribution)
 vrf forwarding green
 ip address 10.1.13.13 255.255.255.0
!
interface GigabitEthernet1/0/1
description access interface
 switchport access vlan 201
 switchport mode access
!
!
interface GigabitEthernet1/0/29
 description core-underlay-interface
 no switchport
 ip address 172.16.1.29 255.255.255.0
 ip pim sparse-mode
!
!
interface Vlan200
 description core svi for l3vni
 vrf forwarding green
 ip unnumbered Loopback0
 ipv6 enable
 no autostate
!
interface Vlan201
 description access-svi
 vrf forwarding green
 ip address 192.168.1.201 255.255.255.0
 ipv6 address 2001:DB8:201::201/64
 ipv6 enable
!
interface nve10
 no ip address
 source-interface Loopback0
 host-reachability protocol bgp
 member vni 5000 vrf green
!
router ospf 1
 router-id 10.1.1.10
 network 10.1.1.0 0.0.0.255 area 0
 network 172.16.1.0 0.0.0.255 area 0
!
router bgp 10
 bgp router-id interface Loopback0
 bgp log-neighbor-changes
 bgp update-delay 1
 no bgp default ipv4-unicast
 neighbor 10.2.2.20 remote-as 10
 neighbor 10.2.2.20 update-source Loopback0
 !
 address-family ipv4
 exit-address-family
 !
 address-family l2vpn evpn
  neighbor 10.2.2.20 activate
  neighbor 10.2.2.20 send-community both
 exit-address-family
 !
 address-family ipv4 vrf green
  advertise l2vpn evpn
  redistribute connected
  redistribute static
 exit-address-family
 !
 address-family ipv6 vrf green
  redistribute connected
  redistribute static
  advertise l2vpn evpn
 exit-address-family
!
ip pim rp-address 10.1.1.10
!
!
end

VTEP2# show running-config
!
hostname VTEP2
!
!
vrf definition green
 rd 104:2
 !
 address-family ipv4
  route-target export 104:2
  route-target import 103:2
  route-target export 104:2 stitching
  route-target import 103:2 stitching
 exit-address-family
 !
 address-family ipv6
  route-target export 104:2
  route-target import 103:2
  route-target export 104:2 stitching
  route-target import 103:2 stitching
 exit-address-family
!
ip multicast-routing
ipv6 unicast-routing
!
!
system mtu 9150
!
vlan configuration 200
 member vni 5000
!
!
interface Loopback0
 ip address 10.2.2.20 255.255.255.255
 ip pim sparse-mode
!
interface Loopback14
 description demo only (for rt5 distribution)
 vrf forwarding green
 ip address 10.1.14.14 255.255.255.0
!
interface GigabitEthernet1/0/1
description access interface
 switchport access vlan 202
 switchport mode access
!
!
interface GigabitEthernet1/0/30
 description core-underlay-interface
 no switchport
 ip address 172.16.1.30 255.255.255.0
 ip pim sparse-mode
!
!
interface Vlan200
 description core svi for l3vni
 vrf forwarding green
 ip unnumbered Loopback0
 ipv6 enable
 no autostate
!
interface Vlan202
 description access-svi
 vrf forwarding green
 ip address 192.168.2.202 255.255.255.0
 ipv6 address 2001:DB8:202::202/64
 ipv6 enable
!
interface nve10
 no ip address
 source-interface Loopback0
 host-reachability protocol bgp
 member vni 5000 vrf green
!
router ospf 1
 router-id 10.2.2.20
 network 10.2.2.0 0.0.0.255 area 0
 network 172.16.1.0 0.0.0.255 area 0
!
router bgp 10
 bgp router-id interface Loopback0
 bgp log-neighbor-changes
 bgp update-delay 1
 no bgp default ipv4-unicast
 neighbor 10.1.1.10 remote-as 10
 neighbor 10.1.1.10 update-source Loopback0
 !
 address-family ipv4
 exit-address-family
 !
 address-family l2vpn evpn
  neighbor 10.1.1.10 activate
  neighbor 10.1.1.10 send-community both
 exit-address-family
 !
 address-family ipv4 vrf green
  advertise l2vpn evpn
  redistribute connected
  redistribute static
 exit-address-family
 !
 address-family ipv6 vrf green
  redistribute connected
  redistribute static
  advertise l2vpn evpn
 exit-address-family
!
ip pim rp-address 10.1.1.10
!
!
end

The following examples provide outputs for show commands on VTEP 1 and VTEP 2 in the topology configured above.

show nve peers

VTEP 1

The following example shows the output for the show nve peers command on VTEP 1: 

VTEP1# show nve peers
Interface  VNI      Type Peer-IP          RMAC/Num_RTs   eVNI     state flags UP time
nve10      5000     L3CP 10.2.2.20        380e.4d9b.6a4a 5000       UP  A/M/4 00:38:37
nve10      5000     L3CP 10.2.2.20        380e.4d9b.6a4a 5000       UP  A/-/6 00:03:16

VTEP 2

The following example shows the output for the show nve peers command on VTEP 2: 

VTEP2# show nve peers
Interface  VNI      Type Peer-IP          RMAC/Num_RTs   eVNI     state flags UP time
nve10      5000     L3CP 10.1.1.10        a0f8.4910.bce2 5000       UP  A/-/4 00:38:53
nve10      5000     L3CP 10.1.1.10        a0f8.4910.bce2 5000       UP  A/M/6 00:38:53

show bgp l2vpn evpn all

VTEP 1

The following example shows the output for the show bgp l2vpn evpn all all command on VTEP 1: 

VTEP1# show bgp l2vpn evpn all
BGP table version is 26, local router ID is 10.1.1.10
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 103:2 (default for vrf green)
 *>   [5][103:2][0][24][10.1.13.0]/17
                      0.0.0.0                  0         32768 ?
 *>   [5][103:2][0][24][192.168.1.0]/17
                      0.0.0.0                  0         32768 ?
 *>   [5][103:2][0][64][2001:DB8:201::]/29
                      ::                       0         32768 ?
Route Distinguisher: 104:2
 *>i  [5][104:2][0][24][10.1.14.0]/17
                      10.2.2.20                0    100      0 ?
 *>i  [5][104:2][0][24][192.168.2.0]/17
                      10.2.2.20                0    100      0 ?
 *>i  [5][104:2][0][64][2001:DB8:202::]/29
                      10.2.2.20                0    100      0 ?

VTEP 2

The following example shows the output for the show bgp l2vpn evpn all command on VTEP 2: 

VTEP2# show bgp l2vpn evpn all
BGP table version is 12, local router ID is 10.2.2.20
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 103:2
 *>i  [5][103:2][0][24][10.1.13.0]/17
                      10.1.1.10                0    100      0 ?
 *>i  [5][103:2][0][24][192.168.1.0]/17
                      10.1.1.10                0    100      0 ?
 *>i  [5][103:2][0][64][2001:DB8:201::]/29
                      10.1.1.10                0    100      0 ?
Route Distinguisher: 104:2 (default for vrf green)
 *>   [5][104:2][0][24][10.1.14.0]/17
                      0.0.0.0                  0         32768 ?
 *>   [5][104:2][0][24][192.168.2.0]/17
                      0.0.0.0                  0         32768 ?
 *>   [5][104:2][0][64][2001:DB8:202::]/29
     Network          Next Hop            Metric LocPrf Weight Path
                      ::                       0         32768 ?

show ip route vrf

VTEP 1

The following example shows the output for the show ip route vrf command on VTEP 1: 

VTEP1# show ip route vrf green
Routing Table: green
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, m - OMP
       n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       H - NHRP, G - NHRP registered, g - NHRP registration summary
       o - ODR, P - periodic downloaded static route, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

      10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
C        10.1.13.0/24 is directly connected, Loopback13
L        10.1.13.13/32 is directly connected, Loopback13
B        10.1.14.0/24 [200/0] via 10.2.2.20, 00:42:01, Vlan200
      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.1.0/24 is directly connected, Vlan201
L        192.168.1.201/32 is directly connected, Vlan201
B     192.168.2.0/24 [200/0] via 10.2.2.20, 00:06:00, Vlan200

VTEP 2

The following example shows the output for the show ip route vrf command on VTEP 2: 

VTEP2# show ip route vrf green
Routing Table: green
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, m - OMP
       n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       H - NHRP, G - NHRP registered, g - NHRP registration summary
       o - ODR, P - periodic downloaded static route, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

      10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
B        10.1.13.0/24 [200/0] via 10.1.1.10, 00:42:38, Vlan200
C        10.1.14.0/24 is directly connected, Loopback14
L        10.1.14.14/32 is directly connected, Loopback14
B     192.168.1.0/24 [200/0] via 10.1.1.10, 00:42:38, Vlan200
      192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.2.0/24 is directly connected, Vlan202
L        192.168.2.202/32 is directly connected, Vlan202

show platform software fed switch active matm mactable vlan

VTEP 1

The following example shows the output for the show platform software fed switch active matm mactable vlan 200 command on VTEP 1:


Note

The MAC address of the peer's core SVI interface must be present in the core VLAN.

 
VTEP1# show platform software fed switch active matm macTable vlan 200
VLAN   MAC                   Type  Seq#   EC_Bi  Flags  machandle           siHandle            riHandle            diHandle              *a_time  *e_time  ports                           
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
200    a0f8.4910.bce2      0x8002      0  19880     64  0x7f5d8503fd48      0x7f5d852b6d28      0x0                 0x5234                      0        0  Vlan200                         
200    380e.4d9b.6a4a   0x1000001      0      0     64  0x7f5d85117598      0x7f5d85110f78      0x7f5d851b9648      0x0                         0        0  RLOC 10.2.2.20 adj_id 22        

Total Mac number of addresses:: 2

VTEP 2

The following example shows the output for the show platform software fed switch active matm mactable vlan 200 command on VTEP 2:


Note

The MAC address of the peer's core SVI interface must be present in the core VLAN.

 
VTEP2# show platform software fed switch active matm macTable vlan 200
VLAN   MAC                   Type  Seq#   EC_Bi  Flags  machandle           siHandle            riHandle            diHandle              *a_time  *e_time  ports                           
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
200    380e.4d9b.6a4a      0x8002      0  42949     64  0x7f40e15fd308      0x7f40e15f49d8      0x0                 0x0                         0        0  Vlan200                         
200    a0f8.4910.bce2   0x1000001      0      0     64  0x7f40e193c478      0x7f40e1938168      0x7f40e1937bf8      0x0                         0        0  RLOC 10.1.1.10 adj_id 86        

Total Mac number of addresses:: 2

Verifying EVPN VXLAN Layer 3 Overlay Network

The following table lists the show commands that are used to verify a Layer 3 VXLAN overlay network:

Table 2. Commands to Verify EVPN VXLAN Layer 3 Overlay Network

Command

Purpose

show nve vni

Displays information about VXLAN network identifier members associated with an NVE interface.

show nve vni vni-id detail

Displays detailed NVE interface state information for a VXLAN network identifier member.

show nve peers

Displays NVE interface state information for peer leaf switches.

show mac address-table vlan vlan-id

Displays MAC addresses for a VLAN.

show platform software fed switch active matm macTable vlan vlan-id

Displays MAC addresses for a VLAN from MAC address table manager database for Forwarding Engine Driver (FED).

show ip route vrf vrf-name

Displays the IP routing table associated with a specific VRF.

show ip cef vrf vrf-name

Displays entries in the Cisco Express Forwarding (CEF) table associated with a VRF.

show arp vrf vrf-name

Displays entries in the Address Resolution Protocol (ARP) table associated with a VRF.

show bgp l2vpn evpn route-type 5

Displays BGP information for route type 5 of Layer 2 VPN EVPN address family.

show bgp l2vpn evpn all

Displays all BGP information for L2VPN EVPN address family.