IOS XR - ipv4 virtual address

Answered Question
Apr 23rd, 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.

I have this problem too.
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Correct Answer by Giuseppe Larosa about 5 years 4 months ago

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

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Overall Rating: 5 (1 ratings)
Correct Answer
Giuseppe Larosa Mon, 04/26/2010 - 04:50

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

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