Forwarding data is stopped on gigabit link (switch to router)
3 weeks ago we have installed a Catalyst3508G (12.0(5.4)WC(1)) that connects a CISCO7206VXR/NSE-1 router.
The link is done with GBIC-SX (a few meters of distance) between the Cat3508G and a PA-GE on the router. At irregular interval (but after a few days) traffic is stopped forwarding on the gigabit link: the interface and the line protocol is still up, but no way to ping the interface and no traffic is flowing through.
The workaround is a shut/no shut on the gigabit interface of the CISCO7206VXR.
We have changed the IOS from 12.2(4)B2 to 12.1(5a)E.
We have changed the PA-GE with the GBIC-SX on the router.
We have changed the GBIC-SX on the Cat3508G and inserted in another slot.
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