Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
119
Although the above example only shows direct interface redistribution into ISIS, other protocols
such as BGP, OSPF, RIP, and Static can also be redistributed.
Verify Operations:
show isis spbm (verify SPB IP is enabled globally)
show ip interface
show ip route
show isis spbm ip-unicast-fib
ping <ip address>
l2 ping <ip address>
l2 traceroute ip-address <ip address>
show isis lsdb tlv 135 detail
show isis lsdb sysid <system id> tlv 135 detail
20.1.16
IP Shortcut– Suppress IST Network
When IP Shortcuts is enabled with the option of redistribution of direct interfaces into ISIS, all local networks
will be advertised including the IST or vIST network used for the IST VLAN. If you wish, you can suppress
the IST network by simply adding a route map matching the IP subnet used for the IST or vIST.
Route-map to suppress the IST from being advertised if ISIS direct interface is enabled
ip prefix-list "IST" 10.1.2.0/30
route-map "suppressIST" 1
no permit
enable
match network "IST"
exit
route-map "suppressIST" 2
enable
exit
router isis
redistribute direct
redistribute direct route-map "suppressIST"
redistribute direct enable
exit
isis apply redistribute direct