cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
6090
Views
25
Helpful
23
Replies

Fiber connection between c4503 and c2960x not working

Bernd Ziller
Level 1
Level 1

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?

23 Replies 23

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

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

I can't believe this bug!

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

samuel.heinrich
Level 1
Level 1

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"

Hi all,

bug CSCuj70291

Solution provided with EX4 (for C2960X)

Release date 18.11.2013

Regards, Alfred

Correction:

bug CSCuj70291

Solution will be provided with EX4 (for C2960X)

Planned release date 18.11.2013

Regards, Alfred

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.

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

Hi all,

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

Regards, Alfred
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Innovations in Cisco Full Stack Observability - A new webinar from Cisco