Solved: IOS XR - ipv4 virtual address

Atif Siddiqui · ‎04-23-2010

In case when there is failover between RP on the GSR; tend to lose the ssh /

telnet session for few mintues.

is this ipv4 virtual address needs to be configured. how does it help? i have configured it but still loses my connection.

ipv4 virtual address 10.10.138.19 255.255.255.248

MgmtEth0/8/CPU0/0 unassigned Up Up

MgmtEth0/9/CPU0/0 10.10..138.20 Up Up

Thanks.

Giuseppe Larosa · ‎04-26-2010

Hello Atif,

in order to have a working virtual address both management interfaces need to have an IP address in the same IP subnet

see from one of our CRS:

sh ip int br | inc Mgmt
MgmtEth0/RP1/CPU0/0 10.85.17.50 Up Up
MgmtEth0/RP0/CPU0/0 10.85.17.49 Up Up

then you configure the virtual IP address in the same IP subnet

sh run | inc 10.85.17.
Building configuration...
ipv4 virtual address 10.85.17.51 255.255.255.240
10 permit ipv4 10.85.17.48 0.0.0.15 any
ipv4 address 10.85.17.49 255.255.255.240
ipv4 address 10.85.17.50 255.255.255.240

Hope to help

Giuseppe

View solution in original post

Giuseppe Larosa · ‎04-26-2010