Which SFP is supported on 7206 Router

Unanswered Question
Apr 8th, 2010

Hi,

I've just inserted a "GLC-SX-MM=" SFP into our 7206VXR/NPE-G2 router however the router doesn't recognise it. Does this SFP work with this router? If not which SFP should I get for a mumlitmode fibre connection (LC termination)?

Thanks

Dan

I have this problem too.
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Ganesh Hariharan Thu, 04/08/2010 - 02:12

Hi,

I've just inserted a "GLC-SX-MM=" SFP into our 7206VXR/NPE-G2 router however the router doesn't recognise it. Does this SFP work with this router? If not which SFP should I get for a mumlitmode fibre connection (LC termination)?

Thanks

Dan

Hi Dan,

The following SFP modules are supported: SFP-GE-S, SFP-GE-L, and SFP-GE-Z. Unapproved SFP modules will not be enabled. Copper SFP modules are not supported, because RJ-45 connectors are built into the Cisco NPE-G2.

Check out the below link for more information

http://www.ciscosystems.sc/en/US/prod/collateral/routers/ps341/prod_qas0900aecd80471791.html

Hope to Help !!

Ganesh.H

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Giuseppe Larosa Thu, 04/08/2010 - 05:08

Hello Dan,

have you issued

media-type gbic

in interface configuration mode?

the port defaults to rj45

Hope to help

Giuseppe

dan_track Thu, 04/08/2010 - 06:24

Hi Giuseppe,

You're a star . I think that has worked although I can't be sure as I don't have the fibres cables at hand yet, is there another way to check if it's worked. If I run the following I get:

sh controllers gigabitEthernet 0/2

Interface GigabitEthernet0/2 (idb 0x43A0080)
Hardware is MV64460 Internal MAC (Revision MV64460-Ethernet)
  Network connection mode is AUTO
  network link is down  (NO CARRIER)
  Config is Auto Speed, Auto Duplex
  Selected media-type is SFP
  GBIC type is SFP

Before I ran the command media-typesfp I was getting the following:

sh controllers gigabitEthernet 0/2

Interface GigabitEthernet0/2 (idb 0x43A0080)
Hardware is MV64460 Internal MAC (Revision MV64460-Ethernet)
  network link is down  (NO CARRIER)
  Config is Auto Speed, Auto Duplex
  Selected media-type is RJ45
  GBIC type is unknown (type 0x1B)

What does the above tell me?

Thanks

Dan

Giuseppe Larosa Thu, 04/08/2010 - 06:33

Hello Dan,

I simply had the same problem before you on C7200 with NPE-G1 and the same applies to NPE-G2.

the sh  controller says that now the router looks for a SFP not for an RJ-45

Hope to help

Giuseppe

dan_track Thu, 04/08/2010 - 06:55

Thanks for that.

Although I'm still uncertain as to how do I know that my SFP has been recognised by the router, is there a way to find out otherwise I'll have to order one quickly.

Thanks

Dan

Giuseppe Larosa Thu, 04/08/2010 - 07:04

Hello Dan,

the line GBIC type is SFP should be good news

if you have a MM fiber you can check it with:

int gi0/x

no keepalive

no neg auto

making a loop (connect tx to rx) with the MM fiber and checking if the interface goes up.

you may need to play with the above commands to make the interface to stay up/up

Edit:

this is from an NPE-G1 on an active GE port

RT-PA-CT-E-4>sh controller gi0/2
Interface GigabitEthernet0/2 (idb 0x622C73B0)
Hardware is BCM1250 Internal MAC (Revision A8/A10)
  Network connection mode is AUTO
  network link is up 
  Config is 1000Mbps, Full Duplex
  Selected media-type is GBIC
  GBIC type is 1000BaseSX

Hope to help

Giuseppe

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