09-14-2017 11:21 AM - edited 03-08-2019 12:02 PM
Hi,
I'm configuring a 2911 router and I was configuring the GE ports and they always stay down even when using the no shutdown command. How do I bring them up?
Thank you
09-14-2017 11:25 AM
Hi,
What does the port connects to? Does the other device the the 2911 connects to support Gig?
HTH
09-14-2017 11:44 AM
The router is connected to 1941w routers which also have GigabitEthernet ports.
09-14-2017 12:09 PM
Are the interfaces down on the physical layer (down/down) or down on the data-link layer (up/down)?
09-14-2017 12:39 PM
Hello,
not sure if somebody mentioned this already, but you need a crossover cable to connect two routers (wires 1 and 3, and 2 and 6 crossed).
Have a look at the link below:
http://www.computernetworkingnotes.com/ccna-study-guide/cabling-cisco-devices-guide.html
09-14-2017 12:43 PM
09-14-2017 07:51 PM
Joe,
ISR G2 ports are MDI/MDI-X (unless this feature is disabled by hard coding the speed & duplex).
09-15-2017 03:21 AM
Ah, in that case, unless the feature has been disabled, either a cross over or straight through cable should work.
09-14-2017 12:39 PM
OK, do you see any link light?
Have you checked/replaced the cable?
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