11-14-2008 05:38 AM - edited 03-04-2019 12:19 AM
Hi,
In 7609 router i am using WS-X6724-SFP in that we connected 100mbps link through GLC-T copper SFP.But link is not coming up.But if i connected through switch and to router its coming up.
Please help me out to resolve the issue.
11-14-2008 07:01 AM
I would start at the physical layer. Make sure that you are using a crossover cable if connecting from router to router or from PC to router. If that doesn't work, try hard coding the speed on each side, it might be a negotiation issue.
Hope this helps,
Rob
11-16-2008 09:39 PM
I tried with crossover also and i cant able to change the speed also.its supports only 1Gig only.
11-15-2008 06:48 AM
Hello Chandra,
I think that GLC-T copper SFP doesn't make the port capable to run at 100 Mbps.
I think it is only able to run 1000 Mbps full-duplex.
You need to use a native Rj-45 port with 10/100/1000 capability for this.
Hope to help
Giuseppe
11-15-2008 07:15 AM
Giuseppe is right,
I double checked the compatibility matrix, and although this SFP is 10,100,1000 it doesn't work at any speed other than 1000 on the 6724 module.
Rob
08-20-2009 09:54 AM
Hi just wondering if anyone can confirm this. We have an SFP-T in a module in our 2821 router and are tring to connect this to a 100Mb Metroethernet connection and does not come. Plugging the Metroethernet into the system gigs works ok as i assume they auto negotiate to 100Mb but these are already in use.
Can you run a SFP-T at 100Mb if yes how ?
Many thanks
08-20-2009 10:02 AM
Hi David,
Do you mean GLC-T or SFP-GE-T? The SFP-GE-T is 1GB only with extended operating temperature range and DOM support, and it is not supported to use with the 2800 platform.
Speed for GLC-T and SFP-GE-T can be verified with sh int cap command
HTH,
jerry
08-20-2009 02:20 PM
GLC-T will only negotiate to 1Gb on a WS-6724 blade module.
I believe Edison mentioned something about the logic behind this is because no one from Cisco would image this blade to negotiate anything but 1Gb.
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