losing routing conections

[jens]

Hello,

Two 12000 routers are directly connected with a ethernet gigabit link and a bgp session.

The both 12000 routers have connections to a other router with a ospf process.

The problem is, when you send more as around 60 megabit per seconds over the both 12k routers, then all packets are dropped and the routing connections are lose. This occured only on one 12k router.

I get never error messages or I see never errors on the interfaces. The interfaces for the back-to-back

connection are always up, but you can't ping etc. After a reload from the linecard is the conection up.

Could this be a memory or rom version problem?

Any suggestions would be greatly appreciated.

Thanks,

Jens

[smif101]

I would swap the line cards between the 12000 routers. If the problem follows the card, have cisco replace it. If it doesn't then troubleshoot from there by swapping out the RSP and such.

[jens]

Hello,

thank you for your answer, but I have changed the linecards and I have the same problem. I have used differend IOS versions, but always the same problem.

Jens

[Kevin Dorrell]

You say you have swopped the linecards between the two routers. Did the problem move to the other router, or did it stay on the original chassis?

You may have to do traffic shaping to give the necessary bandwidth to your routing protocols. Are the lines saturated? What queueing algorithm are you using on the interface?

Kevin Dorrell

Luxembourg

[jens]

The problem is on the same router and I have nothing queuing or qos things configured. After 45 Mbit/s is the linecard down and after a restart is the up. The interfaces are up and nothing error codes on the router.