Configuration Guide

Table Of Contents
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October 2021
319
22.6
Inter VSN Routing
Continuing from configuration example 22.3 (L2VSN), assuming we wish to route between the Layer 2 Red
and Blue Layer 2 VSNs. This can be accomplished by creating a VRF instance and adding the appropriate
VLANs. For redundancy purposes, we can also create a VRF between two SPB bridges and run VRRP
between for redundancy. We will enable Inter VSN routing by adding a VRF instance and then adding the
Blue VSN and Red VSN on 8005 and 8006 and run VRRP between them. The end result will allow user or
servers to forward traffic between Red and Blue VSNs.
In summary, we will configure the following:
Use the base configuration from configuration example 22.1 and 22..2
On SPB bridges 8005 and 8006, we will add the following:
o
A VRF instance named inter-isid with the following
8005
Add an IP address of 10.5.40.2 to VLAN 1155 with a VRRP VIP of
10.5.40.1 and VRRP backup master enabled
Add an IP address of 10.5.41.2/24 to VLAN 2256 with a VRRP VIP of
10.5.41.1 and VRRP backup master enabled
8006
Add an IP address of 10.5.40.3/24 to VLAN 1155 with a VRRP VIP of
10.5.40.1 and VRRP backup master enabled
Add an IP address of 10.5.41.3/24 to VLAN 2256 with a VRRP VIP of
10.5.41.1 and VRRP backup master enabled