[c-nsp] GLC-T sfp problem

[saso pirnat]

Daniel Suchy wrote:
> Hi,
> GLC-T interface is 1000BaseT-only. You cannot connect 100BaseT devices
> here. On 3560 you have 10/100/1000 ports.
> 

this is port which is conected with same GLC-T sfp to C3560, so sfp is
10/100/1000, but on c7600 is only suported mode 1000

>>
>> sh int on 3560
>> GigabitEthernet0/2 is up, line protocol is up (connected)
>>   Hardware is Gigabit Ethernet, address is 0016.9d34.5482 (bia
>> 0016.9d34.5482)
>>   MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
>>      reliability 255/255, txload 1/255, rxload 1/255
>>   Encapsulation ARPA, loopback not set
>>   Keepalive not set
>>   Full-duplex, 100Mb/s, link type is auto, media type is
>> 10/100/1000BaseTX SFP
>>   input flow-control is off, output flow-control is unsupported
>>   ARP type: ARPA, ARP Timeout 04:00:00
>>   Last input never, output 00:00:00, output hang never
>>   Last clearing of "show interface" counters never
>>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>>   Queueing strategy: fifo
>>   Output queue: 0/40 (size/max)
>>   5 minute input rate 0 bits/sec, 0 packets/sec
>>   5 minute output rate 0 bits/sec, 0 packets/sec
>>      0 packets input, 0 bytes, 0 no buffer
>>      Received 0 broadcasts (0 multicast)
>>      0 runts, 0 giants, 0 throttles
>>      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>>      0 watchdog, 0 multicast, 0 pause input
>>      0 input packets with dribble condition detected
>>      4501 packets output, 595675 bytes, 0 underruns
>>      0 output errors, 0 collisions, 2 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

The 1000BASE-T SFP can support 10/100/1000 speeds only on the Cisco
Catalyst 2970, 3560, and 3750 Series Switches.

It is also possible to have the port auto-negotiate at a lower speed, or
force a slower speed. Issue the show interface capabilities command in
order to confirm whether a given GLC-T supports 10/100 speed on a switch.

Output from the show interface capabilities command can confirm whether
a GLC-T can be run at a lower speed. The output also displays the
capabilities of the specified interface, which includes the configurable
features and options.


br saso