[Xorp-users] Xorp system as DR in backbone = disaster

Bruce Simpson bms at incunabulum.net
Fri May 29 04:51:35 PDT 2009


Mark,

Thanks for your mail.

Williams, Mark wrote:
>
> This morning, I attempted to deploy a Xorp system configured as an 
> OSPF ABR. One interface was in the backbone, and all others were in 
> area 0.0.0.2. When the interface in the backbone peered with the other 
> routers in the backbone, the Xorp system became the DR (it had the 
> highest priority).
>
>  
>
> When it became the DR, all of the other routers in the backbone lost 
> their routes through other backbone-connected routers, including the 
> default route, which is injected by an ASBR also in the backbone. The 
> whole topology fell apart. Other routers in the backbone showed that 
> they were peered with the Xorp system, and that it was the DR, but 
> they were not picking up any routes from it. The system has an 
> iptables rule set, but nothing in the logs indicated that any OSPF 
> related traffic was dropped.
>
>  
>
> Has anyone had similar problems with Xorp as DR, particularly if it is 
> the backbone area?
>

Sorry to hear that. I have not encountered similar reports. Can you 
raise a Bugzilla report about this and attach the configuration from 
your XORP ABR node?

thanks,
BMS



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