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Catalyst WS-C4500X-32 CWDM "unknow SFP+"

I have installed  a Cisco CWDM-SFP10G-1470= in our core switch VSS (cat4500e-UNIVERSALK9-M), Version 03.08.01.E). It works but I was suprised it is shown like:

Te1/1/32  **UPLINK-DC03-SW00 connected    trunk        full    10G Unknown SFP+

Is this normal for Cisco 10Gbps CWDM on Catalyst 4500x shown as unknown?

Full Interface info:

TenGigabitEthernet1/1/32 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is 00c1.648d.8d1f (bia 00c1.648d.8d1f)
  Description: **UPLINK-DC03-SW001**
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is force-up, media type is Unknown SFP+
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:06, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 4000 bits/sec, 5 packets/sec
  5 minute output rate 1000 bits/sec, 1 packets/sec
     499290 packets input, 62776440 bytes, 0 no buffer
     Received 434980 broadcasts (400592 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     65303 packets output, 12873323 bytes, 0 underruns
     0 output errors, 0 collisions, 84 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

Thx for sharing any experenice,

Kind Regards, Ferdi

4 Replies 4

Iulian Vaideanu
Level 4
Level 4

I can't see any CDWM SFP+ here, only DWDM:

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_modules/compatibility/matrix/10GE_Tx_Matrix.html#_Toc450654349

Maybe yours works because you have "service unsupported-transceiver" in your config...

Thx for your anwser Lulian.

You mean "service unsupported-transceiver"  allows my switch to use it, but normally C4500X not supports CWDM?

That's my guess, yes.  Of course, it will be proven wrong if you don't have "service unsupported-transceiver" configured :)...

OK seems working. Should I worry about it, when I have to open a TAC case anytime in the future? 

Because we but Cisco module to have no cisco TAC complains. 

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