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Tuesday, February 9, 2010

Cisco 2960 (WS-C2960-8TC-L) with SFP (GLC-FE-100FX) duplex issues


We have 2 Cisco 2960's (WS-C2960-8TC-L) trunked together via interface Gi0/1 on each switch using SFP's (GLC-FE-100FX). Switch Version 12.2(50)SE3. Although the link is up and operational it is only running at half-duplex (a-half a-100) and we are unable to force speed or duplex changes on interface Gi0/1. Gi0/1 .1Q TRK to SW2 connected 1 a-half a-100 100BaseFX-FE SFP. Should this configuration set-up run at a-full a-100 or do we need a different IOS image.

Under the gigabit interfaces add this -

int gi0/1
media-type sfp

then you should be able to configure duplex/speed settings.

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2 comments :

  1. Does not work on a WS-2960TS-L ...

    How does one hard code or hard set the duplex for a port ??

    ReplyDelete
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