Does anyone know how to configure a 4500X with a GLC-T SFP so that it will work at 100M.
The data sheets say it will work at 10/100/1000 but Im not seeing that happen
can't set the speed and it doesnt negotiate with anything at 100M
it will only work with auto to anoather switch set to auto and supports 1000M.
According to the release notes, GLC-T is Gig.
1000BASE-T small form-factor pluggable module
See table-3 in this link:
I'm running into the same problem. We have a copper link to an ISP whose policy it is to hard-code the hand-off to 100/full. On the 4500x, the only option after the interface "speed" is nonegotiate. And the output of "show int x capability" just shows speed of 1000. This is unfortunate.
So it looks like my options are:
1. hope the ISP can change to gig
2. move the link to one of our access switches (but then we lose netflow capability)
By the way, when I look at the command reference guide for the release I'm running, the explanation is less than ideal.
Hi, did you ever get a resolution that worked i.e. the 4500-X with GLC-T to connect at 100Mbps? I have a customer who claims all of their sever and key hosts run at 1000BaseT and wish to deploy two new 4500-X in VSS mode, I know that some of the connects are 100BaseT so any feed back would be welcom
In 3.8 IOS it appears autonegotiation does not occur after deleting speed setting from the config.
1. autonegotiation 1G/full working without any speed setting
2. set speed 100 or 10
3. no speed 100 or 10
Result: speed is retained at set 100 or 10 and autonegotiation back to 1G doesn't occur unless the switch is rebooted.