C3750 Code Upgrade?

prashant dwivedi · ‎05-08-2013

Hello guys,

I want to upgrade IOS for my production core 3750 switch.Below is Show version/fash output..

I have IOS image "c3750-ipservicesk9-mz.122-55.SE7" could you please confirm below concerns-

1-As this is stackable switch do i need to upgrade on all Switch..i can see there are 3 flash while doing show flash?

2-Is above IOS image support with my switch? do i able to enable ssh?

3-is flash memory is enough to succefully upgrade IOS?

4-Any other point which i should keep in mind before upgrading..any special feature which this IOS wont support.

Please provide expert inputs..being Production Switch i am little bit more careful...thanks Indeed!

core-sw1#sh version

Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

Compiled Thu 19-Jul-07 19:15 by nachen

Image text-base: 0x00003000, data-base: 0x01080000

ROM: Bootstrap program is C3750 boot loader

BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEC, RELEASE SOFTWARE (fc4)

core-sw1 uptime is 21 weeks, 3 days, 7 hours, 2 minutes

System returned to ROM by power-on

System image file is "flash:c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin"

cisco WS-C3750-48TS (PowerPC405) processor (revision N0) with 118784K/12280K bytes of memory.

Processor board ID CAT1123NHSV

Last reset from power-on

2 Virtual Ethernet interfaces

96 FastEthernet interfaces

32 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:1B:0D:BC:AD:00

Motherboard assembly number : 73-9680-10

Power supply part number : 341-0028-02

Motherboard serial number : CAT112355SS

Power supply serial number : LIT11200BWW

Model revision number : N0

Motherboard revision number : B0

Model number : WS-C3750-48TS-S

System serial number : CAT1123NHSV

SFP Module assembly part number : 73-7757-03

SFP Module revision Number : A0

SFP Module serial number : CAT11205FJ7

Top Assembly Part Number : 800-25854-02

Top Assembly Revision Number : F0

Version ID : V05

CLEI Code Number : CNMV300CRE

Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image

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

1 24 WS-C3750G-24T 12.2(35)SE5 C3750-IPBASE-M

* 2 52 WS-C3750-48TS 12.2(35)SE5 C3750-IPBASE-M

3 52 WS-C3750-48TS 12.2(35)SE5 C3750-IPBASE-M

Switch 01

---------

Switch Uptime : 21 weeks, 3 days, 7 hours, 12 minutes

Base ethernet MAC Address : 00:1E:BE:24:91:00

Motherboard assembly number : 73-9679-10

Power supply part number : 341-0048-03

Motherboard serial number : FDO11490EJE

Power supply serial number : LIT11360KYE

Model revision number : M0

Motherboard revision number : C0

Model number : WS-C3750G-24T-S

System serial number : FDO1149Y2MD

Top assembly part number : 800-25855-01

Top assembly revision number : G0

Version ID : V05

CLEI Code Number : COMR100BRA

Switch 03

---------

Switch Uptime : 21 weeks, 3 days, 7 hours, 12 minutes

Base ethernet MAC Address : 00:1C:B0:C5:1B:00

Motherboard assembly number : 73-9680-10

Power supply part number : 341-0028-02

Motherboard serial number : CAT11255G0D

Power supply serial number : DTN11251052

Model revision number : N0

Motherboard revision number : B0

Model number : WS-C3750-48TS-S

System serial number : CAT1125NKJJ

SFP Module assembly part number : 73-7757-03

SFP Module revision number : A0

SFP Module serial number : CAT112452W7

Top assembly part number : 800-25854-02

Top assembly revision number : F0

Version ID : V05

CLEI Code Number : CNMV300CRE

Configuration register is 0xF

core-sw1#

show Flash-

core-sw1# sh flash1

Directory of flash1:/

2 -rwx 616 Mar 1 1993 10:31:26 +10:30 vlan.dat

3 -rwx 5 Apr 29 1993 15:08:27 +09:30 private-config.text

5 drwx 192 Mar 1 1993 10:36:29 +10:30 c3750-ipbase-mz.122-35.SE5

509 -rwx 13155 Apr 29 1993 15:08:27 +09:30 config.text

15998976 bytes total (6356480 bytes free)

core-sw1# sh flash2

Directory of flash:/

2 -rwx 616 Mar 1 1993 10:31:22 +10:30 vlan.dat

3 drwx 192 Mar 1 1993 10:39:30 +10:30 c3750-ipbase-mz.122-35.SE5

508 -rwx 13155 Apr 29 1993 15:08:27 +09:30 config.text

509 -rwx 5 Apr 29 1993 15:08:27 +09:30 private-config.text

15998976 bytes total (6356480 bytes free)

core-sw1# sh flash3

Directory of flash3:/

2 -rwx 616 Mar 1 1993 10:31:26 +10:30 vlan.dat

3 drwx 192 Mar 1 1993 10:40:12 +10:30 c3750-ipbase-mz.122-35.SE5

507 -rwx 13155 Apr 29 1993 15:08:27 +09:30 config.text

508 -rwx 5 Apr 29 1993 15:08:27 +09:30 private-config.text

15998976 bytes total (6356480 bytes free)

core-sw1#

thanks you for all your help.

Leo Laohoo · ‎05-08-2013

Your switch stack can support IOS version 12.2(55)SE7.

Stay with this version as it's one of THE MOST STABLE version.

prashant dwivedi · ‎05-08-2013

Hello,

Thanks for your reply...does it mean IOS which i have is not stable and i should be not using this--

i have c3750-ipservicesk9-mz.122-55.SE7 image dowanloaded...could you please comment?

-Prashant

Leo Laohoo · ‎05-08-2013

Your IOS, version 12.2(35)SE5, is very, very, very old. I have no idea how many security vulnerabilities have been discovered with this version alone.

I'm saying that 12.2(55)SE7 is a very STABLE version and I also highly recommend this version.

David Flatley · ‎05-09-2013

Though does the poster not have a problem with the recommended version if using the tar file since it is over 16 megs in size and the flash size on the 3750 is 16 megs???

Leo Laohoo · ‎05-09-2013

Though does the poster not have a problem with the recommended version if using the tar file since it is over 16 megs in size and the flash size on the 3750 is 16 megs???

The IOS version 12.2(55)SE7 is supported in 3560/3750 with only 16 mb of flash space.

Richard Bradfield · ‎05-09-2013

Make sure you download the c3750-ipserviceslmk9 version instead of c3750-ipservicesk9, as the lmk version will fi on to 16M flash, also i see you are going from ip base to ip services so in the

Archive command you must allow feature upgrade eg:

archive download-sw /overwrite /allow-feature-upgrade ....file path /c3750-ipserviceslmk9-tar.122-55.SE7.tar

prashant dwivedi · ‎05-10-2013

Thanks for Reply..

I have 16 MB ram and IOS image "c3750-ipservicesk9-mz.122-55.SE7" is of 12.5 MB.so while upgrading i can remove existing IOS image and put this.

can you guys suggest me if this doesn't possible or any other concern? Being production Switch i just want to reconfirm all points.

On other note,as this is satcked switch do we need to upgrade to all switches?

Thanks,

Prashant

Prasan Venky · ‎05-10-2013

With the maintanance window you have to remove the existing IOS and can put the new in all the switches in stack.IOS must be same in all the switches in stack.

Leo Laohoo · ‎05-10-2013

Firstly, before you begin the upgrade, you need to ensure that your TAR file isn't corrupt. The most efficient way is to compare the MD5 hash of the file against the MD5 hash from the Cisco website.

To upgrade the IOS and remove the old IOS, use the automated command: archive download-sw /over tftp:///IOS.tar

David Flatley · ‎05-10-2013

Ah this is interesting, the tar file for 12.2 55(SE7) is 12 megs for the 3750 and the 12.2 55(SE7) for the 3750G is 16 megs. 3750 having 16 meg flash and the 3750G having a 32 meg flash. The appender has two 3750's and one 3750G so they have to use the 12 meg express tar file. Will this have an adverse effect to the 3750G ?? I find this ineresting because I have a stack with the 3750 as master and a 3750G as a member and I am running the 12.2 - 35 flash on my stack. I was going to add a 3750X to my stack but seeing how I have same flash issue I am going to remove the 3750 so the 3750G becomes the master, update the flash and add the 3750X so I have the 3750G master and the 3750X as a member.

Thanks.

Leo Laohoo · ‎05-10-2013

Release Notes for the Catalyst 3750, 3560, 2960-S, and 2960 Switches, Cisco IOS Release 12.2(58)SE1 and Later

Not all Catalyst 3750 and 3560 switches can run this release. The models listed below are not supported in Cisco IOS Release 12.2(58)SE1 and later. For ongoing maintenance rebuilds for these models, use Cisco IOS Release 12.2(55)SE and later (SE1, SE2, and so on).

•WS-C3560-24TS

•WS-C3560-24PS

•WS-C3560-48PS

•WS-C3560-48TS

•WS-C3750-24PS

•WS-C3750-24TS

•WS-C3750-48PS

•WS-C3750-48TS

•WS-3750G-24T

•WS-C3750G-12

•WS-C3750G-24TS

•WS-C3750G-16TD