10-27-2011 08:26 AM - edited 03-07-2019 03:05 AM
Hi, please i need your help
I can´t configurate speed in a giga port on WS-C3560-24PS-S
switch(config-if)#speed ?
nonegotiate Do not negotiate speed
do you know if the port support speed 100??
because I need to connect with 2955C-12 switch in one port: 100BASE-FX (Multimode Fiber) uplinks, this port its only 100mbps?
and the switch C3750G-12S-E can I configurate the ports on 100mbps?
thanks!
regards
10-27-2011 09:18 AM
Hi,
On the fiber ports the speed is not negotiable. You can't connect Gig port fiber to 100MB port fiber.
HTH
10-27-2011 09:58 AM
Hi
I am not 100% clear on what you want to do.
But it sounds like you want to connect a 100Mbit fx cable that you have already have to/from somewhere to your gig switch.
If so is the case you would need to use the GLC-GE-100FX SFP.
good luck
HTH
10-27-2011 12:03 PM
Yes Hobbe, I want to connect the port "100BASE-FX (Multimode Fiber)" - Switch 2955C-12
to giga port on switch WS-C3560-24PS-S or switch WS-3750G-12S-E
im looking if the sfp GLC-GE-100FX is compatible with WS-C3560-24PS-S or WS-3750G-12S-E
thanks.
10-27-2011 02:26 PM
Yes Hobbe, I want to connect the port "100BASE-FX (Multimode Fiber)" - Switch 2955C-12 to giga port on switch WS-C3560-24PS-S or switch WS-3750G-12S-E
The 100BaseFx module will only negotiate to 100 Mbps, FULL duplex. This is why you won't be given configuration options to set the speed and/or duplex setting.
Now, if the local end is a 100BaseFx and the other end is a 1000BaseFX, then don't expect the link to come up unless the remote end can negotiate to 100 mbps.
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