3com 5500G-E1 stacking failed

[irmanz]

I have few unit of 3com 5500G-E1. Last few week 1 of the switch faulty and I have replace it with new unit. When replacement unit installed it unable to communicate with older unit using stacking cable eventhough its running fine. From what I see is the unit have different hardware version. Is there any other reasons causing the switch failed to stack? Can it be fixed? Anyone have idea.

New unit

3Com Corporation


SuperStack 4 Switch 5500G-EI Software Version 3Com OS V3.02.00s56


Copyright(c) 2004-2006 3Com Corporation and its licensors, All rights reserved.


SuperStack 4 Switch 5500G-EI uptime is 0 week, 0 day, 20 hours, 2 minutes





3Com Switch 5500G-EI 24-Port with 1 MIPS Processor


128M    bytes SDRAM


16384K  bytes Flash Memory


Config Register points to FLASH





Hardware Version is REV.C


CPLD Version is 002


Bootrom Version is 4.00


24GE+4SFP  Hardware Version is REV.C


2 STACK Hardware Version is REV.C


 

Old Unit

3Com Corporation


SuperStack 4 Switch 5500G-EI Software Version 3Com OS V3.02.00s56


Copyright(c) 2004-2006 3Com Corporation and its licensors, All rights reserved.


SuperStack 4 Switch 5500G-EI uptime is 0 week, 1 day, 2 hours, 56 minutes





3Com Switch 5500G-EI SFP 24-Port with 1 MIPS Processor


128M    bytes SDRAM


16384K  bytes Flash Memory


Config Register points to FLASH





Hardware Version is REV.B


CPLD Version is 004


Bootrom Version is 4.00


24SFP+4GE  Hardware Version is REV.B


2 STACK Hardware Version is REV.B


 

TQVM

[Fred_Mancen_1]

Check the sysname of the new unit. All the units need to have exactly the same sysname. I suggest you to check the file system in all units also, in order to see if all the files are the same and if the configuration files are well synchronized.

HTH