Catalyst 2900 Config. Please help!! 1

[JJ1]

Hi All,

I'm a student taking an industrial placement at a firm and my boss just asked me to make a terminal connection with this cisco switch (a catalyst 2900) and install two 2931 Gigabit modules.

I've done the installation of the modules, I've esablished a termial connection and I have a command prompt:
4s-c2916-16>

Now, how do I check that the two Gigabit modules work? (ie. That me, the newbie didn't make some terrible mistake in installing them!!) I have tried "sh ver", but it doesn't mention anything about these two modules being connected correctly.

Any sugegstions are very welcome ;-)

Thank you,

James.

 

[JJ1]

I've sorted it.

Instead of "show mod"...which I was trying at first, I should have used "show int".

The 2 gigabit modules which I installed were detected (shown below). Could anyone please let me know what is meant by the "Gigabit Ethernet x/x is down, line protocol is down"?

Many thanks,

James.

[red]GigabitEthernet1/1 is down, line protocol is down

Hardware is Gigabit Ethernet, address is 0050.d1da.9a94 (bia 0050.d1da.9a94)
MTU 1500 bytes, BW 0 Kbit, DLY 0 usec, rely 255/255, load 1/255
....
....
0 watchdog, 0 multicast, 0 pause input
1 packets output, 64 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out


GigabitEthernet2/1 is down, line protocol is down

Hardware is Gigabit Ethernet, address is 0050.d1da.9a99 (bia 0050.d1da.9a99)
MTU 1500 bytes, BW 0 Kbit, DLY 0 usec, rely 255/255, load 1/255
Encapsulation ARPA, loopback not set, keepalive not set
Duplex setting unknown, link type is autonegotiation, media type is missing
output flow-control is off, input flow-control is off.
...
....
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
[/red]

 

[netsyseng]

james,"Gigabit Ethernet x/x is down, line protocol is down"?
means that your gig-e modules are not connected/communicating with any other device. typically, gig-e modules would be connected to another switch or router usually via fiber. nemo

 

[JJ1]

Thank you Netsyseng.

Does 'GigabitEthernet x/x is down' mean there is no cable plugged in then the 'Line protocol is down' means that the remote device is not working? basically, what is a 'line protocol'?

In what cases would you see "gigabit ethernet x/x is up, line protocol is down"?

Thanks all,

James.

 

[Guest_imported]

James,
Not only do you have to have the interfaces connected to another device that is working correctly, you also have to administratively bring up the interface. This is done in the config-if (for the particular interface of intrest) mode and typing in the command "no shut" (or no shutdown. If you want to ensure the interface will come back up in the event the router re starts, then you must insert that command in the config file also. Hope this helps!