Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
11
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20.1.14
L3VSN – leaking routes between VRF’s
L3 VSN with two separate VRF’s (red and blue) with one common shared VRF (shared).
Allows routing from the red or blue VRF to the shared VRF and vise-versa, but, no routing
between the red and blue VRF’s. For all VRFs (red, blue, and shared), please see
configuration step in the previous example titled L3VSN Configuration.
.
Single ISID:
config terminal
router vrf <vrf-name>
isis accept i-sid < ISID: 0..16000000> enable
exit
isis apply accept vrf <vrf-name>
ISID List:
config terminal
router vrf <vrf-name>
ip isid-list <isid-list name> list <List of ISID values>
isis accept isid-list <isid-list name> enable
exit
isis apply accept vrf <vrf-name>
configure terminal
router vrf blue
isis accept i-sid 2002290 enable
exit
isis apply accept vrf blue
configure terminal
router vrf red
isis accept i-sid 2002290 enable
exit
isis apply accept vrf red
configure terminal
router vrf blue
isis accept i-sid 2002290 enable
exit
isis apply accept vrf blue
router vrf red
isis accept i-sid 2002290 enable
exit
isis apply accept vrf red
router vrf shared
ip isid-list users list
2002255,2002256
isis accept isid-list users enable
exit
isis apply accept vrf shared