[c-nsp] overlapping ip onflict - IOS XR - forces interfaces down

[Jason Lixfeld]

What version?

On 2013-08-14, at 9:22 AM, "Aaron" <aaron1 at gvtc.com> wrote:

> This got me yesterday!  I configured an interface on my asr9000 with an
> incorrect mask..the mask overlapped (encompassed) another pre-existing
> interface . I guess IOS XR doesn't give you the warning like old IOS about
> overlapping networks.look what it did!  .it forced down the other
> pre-existing interface.  Then while I was unable to figure out my typo with
> the incorrect mask and had not yet look into the logs, but I just knew I had
> a bad problem with this core 9k, I simply rolled back config and it fix the
> backbone link. then later I found this in the logs.  Thought I'd share with
> y'all.
> 
> 
> 
> RP/0/RSP0/CPU0:Aug 13 16:26:56.586 : ipv4_arm[268]:
> %IP-IP_ARM-3-CFLCT_FORCED_DOWN : The IPv4 address 10.101.1.10/30 on
> Bundle-Ether2 conflicts with other IPv4 addresses and has been forced down
> 
> 
> 
> (this is after I did a config rollback)
> 
> 
> 
> RP/0/RSP0/CPU0:Aug 13 16:46:00.738 : ipv4_arm[268]:
> %IP-IP_ARM-6-CFLCT_NO_LONGER : The IPv4 address 10.101.1.10/30 on
> Bundle-Ether2 is no longer forced down due to IPv4 address conflicts
> 
> 
> 
> Aaron
> 
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