Cisco 3945 with SFP - full duplex possible?

[kluehspiesp]

My provider (Deutsche Telekom) is only able to hand over a 1Gbps-Link with speed und full-duplex configured fix.

To force the router (cisco 3945) for 1000/full, I had to remove the 'media-type sfp'

SFP is MM-SX on Router-Interface Gi0/2

This configuration worked a while but shows many interface resets (more than 30 in one minute).

Telekom confirmed, their connection is working properly.

After switching the router off an on, I could no longer connect with telnet or ssh. Ping is also not successful but cdp shows the neighbor router!?!

Maybe this is a problem with SFP and duplex configuration.

Any ideas?

[loizosko]

i had the same problem. 3925 running 151-3T. we got a new isp link that required glc-sx-mm. the link was not coming up.

i tried different gbics.

no command to nonegotiate or specify speed/duplex

i upgraded ios to 153.2T and interface came right up.

still don't have those commands but it works.

there must be a bug or something in some of the ios.