Fiber connection between c4503 and c2960x not working

[Bernd Ziller]

I just tried to establish a fiber connection between a c4503 and a c2960x using glc-lh-sm modules on both sides, but with no success.

Link comes up on the c2960x but not on the c4503.

I tried "speed nonegotiate" on both sides: link comes up on both sides, but no data received on both sides.

A connection between a c2960-24LC-S and the c2960X-24PD-L works fine, as does a connection between the c2960-24LC-S and the c4503.

All on the same ports and modules and also different ports an modules per switch.

Any suggestions on why a connection between the c4503 and the c2960X doesn't work?

[Brandon Fernandez]

Same problem here

1) 2960X (GLC-SX-MM-C) to Sup2T/6509E/6848 -> 2960X shows up/up, 6509 down/down

2) 2960X (GLC-SX-MM-C) to 2960X (GLC-SX-MMD) -> both ports up CDP Nei shows the switch

3) Upgrade Software from EX1 to EX3 -> same behaviour

Switch#show version | incl EX3

Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX3, RELEASE SOFTWARE (fc1)

System image file is "flash:/c2960x-universalk9-mz.150-2.EX3.bin"

*    1 52    WS-C2960X-48FPD-L  15.0(2)EX3            C2960X-UNIVERSALK9-M    

Switch#

Switch#show int gi1/0/50 capabilities

GigabitEthernet1/0/50

  Model:                 WS-C2960X-48FPD-L

  Type:                  1000BaseSX SFP

  Speed:                 1000

  Duplex:                full

  Trunk encap. type:     802.1Q

  Trunk mode:            on,off,desirable,nonegotiate

  Channel:               yes

  Broadcast suppression: percentage(0-100)

  Flowcontrol:           rx-(off,on,desired),tx-(none)

  Fast Start:            yes

  QoS scheduling:        rx-(not configurable on per port basis),

                         tx-(4q3t) (3t: Two configurable values and one fixed.)

  CoS rewrite:           yes

  ToS rewrite:           yes

  UDLD:                  yes

  Inline power:          no

  SPAN:                  source/destination

  PortSecure:            yes

  Dot1x:                 yes

Switch#

Switch#show idprom interface gi1/0/50

General SFP Information

-----------------------------------------------

Identifier            :   0x03

Connector             :   0x07

Transceiver           :   0x00 0x00 0x00 0x01 0x20 0x40 0x0C 0x00

Encoding              :   0x01

BR_Nominal            :   0x0D

Vendor Name           :   CISCO-PROLABS  

Vendor Part Number    :   GLC-SX-MM-C    

Vendor Revision       :   0x20 0x20 0x20 0x20

Vendor Serial Number  :   P1A24111       

-----------------------------------------------

Didn't open TAC case yet

[agunesch]

Hi all,

I've got the same problem.

Bug: CSCuj70291

1 gig uplink on WS-C2960X-48LPD-L does not link up with 4306, 4448-GB

Symptom:

Uplink port with glc-sx-mm,glc-lh-sm not coming up between WS-C2960X-48LPD-L and any catalyst 4500 with WS-X4448-GB-SFP and WS-X4306-GB. When speed no negotiate is enabled, link comes up, but no traffic.

This is observed with catalyst 6500 line cards as well.

Conditions:

Uplink port with glc-sx-mm,glc-lh-sm not coming up between WS-C2960X-48LPD-L and any catalyst 4500 with WS-X4448-GB-SFP and WS-X4306-GB

Workaround:

None

Bug-fix will be release on 18th of Nov.

Regards, Alfred

[Leo Laohoo]

I can't believe this bug!

I can see the 2960 BU is doing a "bang up" job in Quality Control. 

[samuel.heinrich]

Same issue here. Link does not come up.

Side A

WS-C4506 (WS-X4306-GB linecard with 1000BaseSX GBIC)

Side B

Cisco Catalyst 2960X-48FPS-L* (GLC-SX-MM SFP)

All GBIC/SFP/Linecard Ports were replaces with no effekt. If we configure "speed nonegotiate" then we can see the LED turns green and  link shows connected but traffic counters remain zero.

I can assure you that there are no issues with the cabling or SFP moduels, if we replace the 2960x with a 2960s (same config) the link works like a charm!

It looks like this issue is not fixed in EX3, at least not on the WS-C2960X-48FPS-L plattform!

*

Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX3,

RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Wed 11-Sep-13 02:04 by prod_rel_team

ROM: Bootstrap program is C2960X boot loader

BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.0(2r)EX, RELEASE SOFTWAR

E (fc1)

AS.... uptime is 23 hours, 33 minutes

System returned to ROM by power-on

System restarted at 12:33:41 MEST Tue Nov 12 2013

System image file is "flash:c2960x-universalk9-mz.150-2.EX3.bin"

[agunesch]

Hi all,

bug CSCuj70291

Solution provided with EX4 (for C2960X)

Release date 18.11.2013

Regards, Alfred

[agunesch]

Correction:

bug CSCuj70291

Solution will be provided with EX4 (for C2960X)

Planned release date 18.11.2013

Regards, Alfred

[samuel.heinrich]

hmm can't find the bug CSCuj70291 in the EX4 release note..

but this at least this one:

Caveats Resolved in Cisco IOS Release 15.0(2)EX4

CSCuj74167

Gigabit link from WS-C2960X-48FPD-L not coming up when using GLC-SX-MM.

There is no workaround.

[Brandon Fernandez]

EX4 fixed it today for me.

A painful bug causing a lot of issues.

My main concern is that i suffered from painful bugs in the last 3-4 implementation of new cisco products.

There was no implementation without a Cisco TAC case

[agunesch]

Hi all,

exactelly, bug CSCuj74167 in the release notes is a duplicate of bug CSCuj7029.

Regards, Alfred