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New Member

GLC-GE-100FX= compatibility with WS-X4448-GB-SFP


I have one switch cisco 3550FX on distribute layer and i cant establish connect with my CORE Switch 4506 with de module WS-X4448-GB-SFP, i'm trying to use this module together with GLC-GE-100FX.

I already know that GLC-GE-100FX is compatible only on DSBU switches.

I was thinking if there's compatible IOS that enable the WS-X4448-GB-SFP to work with GLC-GE-100FX.


I have the SUP-V on my CAT4506.

New Member

GLC-GE-100FX= compatibility with WS-X4448-GB-SFP


Just a UP for this question/problem.

We encounter actually a problem with GLC-GE-100FX not recognized on 4507R+E with SUP7L-E in version 3.4.0SG (last version of IOS XE). We try to insert the GLC into a WS-X4448-GB-SFP but the module isn't recognized and we obtain the following message :

*Feb  6 01:53:26.631: %C4K_TRANSCEIVERMAN-3-INCOMPATIBLE: Port Gi1/3: New transceiver (speed 100Mbps) is incompatible with this module

Regarding all the release notes and compatibility matrix : all should be ok (firmware version, hardware, ...)

It's also imposible to use the speed command on the interface to force 100Mb/s speed...

Here is an output from : sh mod, sh int, ..

Switch#sh mod

Chassis Type : WS-C4507R+E

Power consumed by backplane : 40 Watts

Mod Ports Card Type                              Model              Serial No.


1    48  1000BaseX SFP                          WS-X4448-GB-SFP    xxxxx

3     6  Sup 7L-E 10GE (SFP+), 1000BaseX (SFP)  WS-X45-SUP7L-E     xxxx

M MAC addresses                    Hw  Fw           Sw               Status


1 30f7.0dbd.5bd0 to 30f7.0dbd.5bff 1.3                               Ok      

3 6c20.56f8.2100 to 6c20.56f8.2105 1.1 15.0(1r)SG3  03.04.00.SG      Ok      

Mod  Redundancy role     Operating mode      Redundancy status


3   Active Supervisor   RPR                 Active                           

Switch#   sh int statu | i 1/3

Gi1/3                        notconnect   1            full   1000 Unknown GBIC

Gi1/30                       notconnect   1            full   1000 No Gbic

Gi1/31                       notconnect   1            full   1000 No Gbic

Gi1/32                       notconnect   1            full   1000 No Gbic

Gi1/33                       notconnect   1            full   1000 No Gbic

Gi1/34                       notconnect   1            full   1000 No Gbic

Gi1/35                       notconnect   1            full   1000 No Gbic

Gi1/36                       notconnect   1            full   1000 No Gbic

Gi1/37                       notconnect   1            full   1000 No Gbic

Gi1/38                       notconnect   1            full   1000 No Gbic

Gi1/39                       notconnect   1            full   1000 1000BaseT


Switch#sh int gi 1/3

GigabitEthernet1/3 is down, line protocol is down (notconnect)

  Hardware is Gigabit Ethernet Port, address is 30f7.0dbd.5bd2 (bia 30f7.0dbd.5bd2)

  MTU 1500 bytes, BW 1000000 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, Auto-speed, link type is auto, media type is Unknown GBIC

  input flow-control is off, output flow-control is off

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input never, 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: 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 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

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 3 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


Thanks for your help.