This document covers basic OTV configuration and Verification between two N7K
Each N7K configured with two VDC
OTV VDC
Core_VDC
VLAN 2 configured on Core_VDC of both N7K, and extending VLAN 2 traffic between two N7K via OTV VDC.
Connectivity will be verified via ping between two N7K.
Topology
Configuration
Nexus 7K1
Create VDC & Allocate required interfaces
Config t
!
vdc Core_VDC
allocate interface Ethernet1/4
!
vdc OTV_VDC
allocate interface Ethernet2/1, Ethernet2/3
!
Switchto Core_VDC and configure VLAN, SVI, and Layer 2 connectivity to OTV_VDC
switchto vdc Core_VDC
!
Vlan 2
!
feature interface-vlan
!
interface Vlan2
no shutdown
ip address 10.0.0.2/24
!
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan all
no shutdown
!
Switchto OTV_VDC and configure VLAN, Internal Interface, Join Interface and Overlay Interface
switchto vdc OTV_VDC
vlan 2
vlan 1999 <<<<< Site Vlan
!
interface Ethernet2/3
description Internal Interface <<<< Connectivity to Core_VDC
switchport
switchport mode trunk
no shutdown
!
interface Ethernet2/1
description join interface <<<< Connectivity to another N7K
ip address 172.168.1.1/24
ip igmp version 3
no shutdown
!
feature otv
!
otv site-vlan 1999
otv site-identifier 0x1
!
interface Overlay1
otv join-interface Ethernet2/1
otv extend-vlan 2
otv adjacency-server unicast-only <<<< N7K1 act as Adjacency Server
no otv suppress-arp-nd
no shutdown
!
Nexus 7K2
Create VDC & Allocate required interfaces
Config t
!
vdc Core_VDC
allocate interface Ethernet1/4
!
vdc OTV_VDC
allocate interface Ethernet2/7, Ethernet2/3
!
Switchto Core_VDC and configure VLAN, SVI, and Layer 2 connectivity to OTV_VDC
switchto vdc Core_VDC
!
Vlan 2
!
feature interface-vlan
!
interface Vlan2
no shutdown
ip address 10.0.0.1/24
!
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan all
no shutdown
!
Switchto OTV_VDC and configure VLAN, Internal Interface, Join Interface and Overlay Interface
switchto vdc OTV_VDC
vlan 2
vlan 1999 <<<<< Site Vlan
!
interface Ethernet2/3
description Internal Interface <<<< Connectivity to Core_VDC
switchport
switchport mode trunk
no shutdown
!
interface Ethernet2/7
description join interface <<<< Connectivity to another N7K
ip address 172.168.1.2/24
ip igmp version 3
no shutdown
!
feature otv
!
otv site-vlan 1999
otv site-identifier 0x2
!
interface Overlay1
otv join-interface Ethernet2/7
otv extend-vlan 2-99
otv use-adjacency-server 172.168.1.1 unicast-only <<< Define adjacency to adjacency server N7K1
no otv suppress-arp-nd
no shutdown
!
Verification
!
D12-N7010-1-OTV_VDC# show otv
OTV Overlay Information
Site Identifier 0000.0000.0001
Overlay interface Overlay1
VPN name : Overlay1
VPN state : UP
Extended vlans : 2-99 (Total:98)
Join interface(s) : Eth2/1 (172.168.1.1)
Site vlan : 1999 (up)
AED-Capable : Yes
Capability : Unicast-Only
Is Adjacency Server : Yes
Adjacency Server(s) : [None] / [None]
D11-N7010-2-OTV_VDC# show otv
OTV Overlay Information
Site Identifier 0000.0000.0002
Overlay interface Overlay1
VPN name : Overlay1
VPN state : UP
Extended vlans : 2-99 (Total:98)
Join interface(s) : Eth2/7 (172.168.1.2)
Site vlan : 1999 (up)
AED-Capable : Yes
Capability : Unicast-Only
Is Adjacency Server : No
Adjacency Server(s) : 172.168.1.1 / [None]
D12-N7010-1-OTV_VDC# show otv vlan
OTV Extended VLANs and Edge Device State Information (* - AED)
Legend:
(NA) - Non AED, (VD) - Vlan Disabled, (OD) - Overlay Down
(DH) - Delete Holddown, (HW) - HW: State Down
(NFC) - Not Forward Capable
VLAN Auth. Edge Device Vlan State Overlay
---- ----------------------------------- ---------------------- ------
-
2* D12-N7010-1-OTV_VDC active Overlay1
D11-N7010-2-OTV_VDC# show otv vlan
OTV Extended VLANs and Edge Device State Information (* - AED)
Legend:
(NA) - Non AED, (VD) - Vlan Disabled, (OD) - Overlay Down
(DH) - Delete Holddown, (HW) - HW: State Down
(NFC) - Not Forward Capable
VLAN Auth. Edge Device Vlan State Overlay
---- ----------------------------------- ---------------------- ------
-
2* D11-N7010-2-OTV_VDC active Overlay1
Ping from N7K1 Core_VDC to N7K2 Core_VDC
D12-N7010-1-Core_VDC# ping 10.0.0.1
PING 10.0.0.1 (10.0.0.1): 56 data bytes
64 bytes from 10.0.0.1: icmp_seq=0 ttl=254 time=1.652 ms
64 bytes from 10.0.0.1: icmp_seq=1 ttl=254 time=0.924 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=254 time=37.35 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=254 time=0.933 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=254 time=0.849 ms
--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 0.849/8.341/37.35 ms
