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Community Member

Catalyst 3750 stack issues

There are 8 Catalyst 3750 switches installed in stack. Switch1 to 6 and 8 are detecting in stack. However Switch 7 couldn’t be detected as stack member. However Switch 7 joins to stack membership once we remove switch 8 out of stack and create switch 7 as last member of stack. What could be the possible ways to fix this error?

2 REPLIES
Community Member

Re: Catalyst 3750 stack issues

Hi Pankaj

Could you provide some more information like show ver, show stack from the master switch in the stack.

The maximum number of switch can be 9 (numbering 1, 2---9) in the switch so that should work.

The stack is numbered by two way

1 Up time

2 Lower mac address

So that’s might be the reason that switch 8 is added not switch 7, also take the mister switch on console and check the messages.

Thanks & Regards

Puneet Bansal

Community Member

Re: Catalyst 3750 stack issues

Dear Puneet,

Please find 'sh switch detail' 'and 'sh version' outputs below which taken from Master Switch in the stack. I had restarted all the switches including switch 8 to last in row. However it couldn't make any difference to Switch7.

CAT3750-SW#sh switch detail
Switch/Stack Mac Address : 001f.c91e.af80
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 001f.c91e.af80     15     0       Ready
2       Member 0022.bdba.9780     14     0       Ready
3       Member 0022.91e4.5a80     13     0       Ready
4       Member 0022.bd67.ed00     12     0       Ready
5       Member 0022.91e4.9700     11     0       Ready
6       Member 0021.d876.1580     10     0       Ready
7       Member 0000.0000.0000     0      0       Provisioned
8       Member 0022.0c04.5900     8      0       Ready

         Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1        Ok         Ok                8        2
  2        Ok         Ok                1        3
  3        Ok         Ok                2        4
  4        Ok         Ok                3        5
  5        Ok         Ok                4        6
  6        Ok        Down               5      None
  8       Down        Ok              None       1


CAT3750-SW#sh version
Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(40)SE, R
ELEASE SOFTWARE (fc3)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Fri 24-Aug-07 00:53 by myl
Image text-base: 0x00003000, data-base: 0x01680000

ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE
(fc1)

ZS-L2C-ASW-IDF3 uptime is 1 day, 2 hours, 29 minutes
System returned to ROM by power-on
System image file is "flash:c3750-ipservicesk9-mz.122-40.SE/c3750-ipservicesk9-m
z.122-40.SE.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html you require further assistance please contact us by sending email to
export@cisco.com. WS-C3750-24P (PowerPC405) processor (revision R0) with 118784K/12280K byte
s of memory.
Processor board ID FDO1209Z14U
Last reset from power-on
2 Virtual Ethernet interfaces
336 FastEthernet interfaces
28 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

If

cisco

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:1F:C9:1E:AF:80
Motherboard assembly number     : 73-9672-10
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO120905EA
Power supply serial number      : LIT120503WS
Model revision number           : R0
Motherboard revision number     : A0
Model number                    : WS-C3750-24PS-S
System serial number            : FDO1209Z14U
Top Assembly Part Number        : 800-25860-05
Top Assembly Revision Number    : A0
Version ID                      : V06
CLEI Code Number                : COMU410ARA
Hardware Board Revision Number  : 0x01


Switch   Ports  Model              SW Version              SW Image
------   -----  -----              ----------              ----------
*    1   26     WS-C3750-24P       12.2(40)SE              C3750-IPSERVICESK9-M
     2   26     WS-C3750-24P       12.2(40)SE              C3750-IPSERVICESK9-M
     3   52     WS-C3750-48P       12.2(40)SE              C3750-IPSERVICESK9-M
     4   52     WS-C3750-48P       12.2(40)SE              C3750-IPSERVICESK9-M
     5   52     WS-C3750-48P       12.2(40)SE              C3750-IPSERVICESK9-M
     6   52     WS-C3750-48P       12.2(40)SE              C3750-IPSERVICESK9-M
     8   52     WS-C3750-48P       12.2(40)SE              C3750-IPSERVICESK9-M


Switch 02
---------
Switch Uptime                   : 1 day, 2 hours, 30 minutes
Base ethernet MAC Address       : 00:22:BD:BA:97:80
Motherboard assembly number     : 73-9672-10
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO123114AL
Power supply serial number      : DTN122543Z4
Model revision number           : R0
Motherboard revision number     : A0
Model number                    : WS-C3750-24PS-S
System serial number            : FDO1231Z33G
Top assembly part number        : 800-25860-05
Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMU410ARA

Switch 03
---------
Switch Uptime                   : 1 day, 2 hours, 30 minutes
Base ethernet MAC Address       : 00:22:91:E4:5A:80
Motherboard assembly number     : 73-9675-12
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO12300X0N
Power supply serial number      : LIT12250F56
Model revision number           : L0
Motherboard revision number     : A0
Model number                    : WS-C3750-48PS-S
System serial number            : FDO1231Y067
SFP Module assembly part number : 73-7757-03
SFP Module revision number      : A0
SFP Module serial number        : FDO12300TGF
Top assembly part number        : 800-25858-04
Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMUX10ARA

Switch 04
---------
Switch Uptime                   : 1 day, 2 hours, 30 minutes
Base ethernet MAC Address       : 00:22:BD:67:ED:00
Motherboard assembly number     : 73-9675-12
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO123012DH
Power supply serial number      : LIT12250F1E
Model revision number           : L0
Motherboard revision number     : A0
Model number                    : WS-C3750-48PS-S
System serial number            : FDO1231Y041
SFP Module assembly part number : 73-7757-03
SFP Module revision number      : A0
SFP Module serial number        : FDO12300M81
Top assembly part number        : 800-25858-04
Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMUX10ARA

Switch 05
---------
Switch Uptime                   : 1 day, 2 hours, 30 minutes
Base ethernet MAC Address       : 00:22:91:E4:97:00
Motherboard assembly number     : 73-9675-12
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO12300WZV
Power supply serial number      : LIT12250EXT
Model revision number           : L0
Motherboard revision number     : A0
Model number                    : WS-C3750-48PS-S
System serial number            : FDO1231Y03X
SFP Module assembly part number : 73-7757-03
SFP Module revision number      : A0
SFP Module serial number        : FDO12300QCU
Top assembly part number        : 800-25858-04
Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMUX10ARA

Switch 06
---------
Switch Uptime                   : 1 day, 2 hours, 30 minutes
Base ethernet MAC Address       : 00:21:D8:76:15:80
Motherboard assembly number     : 73-9675-12
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO12220SJ9
Power supply serial number      : DTN122042FN
Model revision number           : L0
Motherboard revision number     : A0
Model number                    : WS-C3750-48PS-S
System serial number            : FDO1222X3BS
SFP Module assembly part number : 73-7757-03
SFP Module revision number      : A0
SFP Module serial number        : FDO12220DCW
Top assembly part number        : 800-25858-04
Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMUX10ARA

Switch 08
---------
Switch Uptime                   : 1 day, 53 minutes
Base ethernet MAC Address       : 00:22:0C:04:59:00
Motherboard assembly number     : 73-9675-12
Power supply part number        : 341-0029-05
Motherboard serial number       : FDO12220SQP
Power supply serial number      : DTN122042BJ
Model revision number           : L0
Motherboard revision number     : A0
Model number                    : WS-C3750-48PS-S
System serial number            : FDO1222X3BN
SFP Module assembly part number : 73-7757-03
SFP Module revision number      : A0
SFP Module serial number        : FDO12220AVL
Top assembly part number        : 800-25858-04

Top assembly revision number    : A0
Version ID                      : V06
CLEI Code Number                : COMUX10ARA

Configuration register is 0xF

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