Stack question

Andy White · ‎09-14-2010

Hello,

I have a stack of 4 3750G which all have 24 ports. I need to buy another switch as we are running out of ports can i add a 48 port version of the switch, or do they all have to be the same?

Thanks

Collin Clark · ‎09-14-2010

Hi Andy-

You can add the 48 port switch. You need to make sure that it is the same major IOS version as your 24 port switches. Here's a helpful link.

http://www.cisco.com/en/US/partner/docs/switches/lan/catalyst3750/software/release/12.2_25_see/configuration/guide/swstack.html

I also suggest that you provision it so nothing gets messed up. The directions on how to do that are in the link above.

Hope it helps.

Andy White · ‎09-14-2010

Hi,

I can't access that site, I log in but says I don't have permission

Here is my current spec on the switches in the stack, what am I looking for? I guess I need a WS-C3750G-48T-S and use the firmware c3750-ipbase-mz.122-53.SE.bin :

#sh ver

Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(53)SE, RELEASE SOFTWARE (fc2)

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

Compiled Sun 13-Dec-09 16:25 by prod_rel_team

Image text-base: 0x01000000, data-base: 0x02A00000

ROM: Bootstrap program is C3750 boot loader

BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE (fc1)

ISCSI-3750-A uptime is 32 weeks, 3 days, 8 hours, 40 minutes

System returned to ROM by power-on

System restarted at 07:29:54 utc Sat Jan 30 2010

System image file is "flash:c3750-ipbase-mz.122-53.SE/c3750-ipbase-mz.122-53.SE.bin"

cisco WS-C3750G-24T (PowerPC405) processor (revision N0) with 131072K bytes of memory.

Processor board ID FDO1240Z05S

Last reset from power-on

8 Virtual Ethernet interfaces

48 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

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

Base ethernet MAC Address :

Motherboard assembly number :

Power supply part number :

Motherboard serial number :

Power supply serial number :

Model revision number : N0

Motherboard revision number : A0

Model number : WS-C3750G-24T-S

System serial number :

Top Assembly Part Number :

Top Assembly Revision Number : A0

Version ID : V06

CLEI Code Number :

Hardware Board Revision Number : 0x02

Switch Ports Model SW Version SW Image

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

* 1 24 WS-C3750G-24T 12.2(53)SE C3750-IPBASE-M

2 24 WS-C3750G-24T 12.2(53)SE C3750-IPBASE-M

Thanks

Peter Paluch · ‎09-14-2010

Hello,

Use this URL (I've just removed the "/partner/" component of the URL as that one requires login while the one I am providing now is simply the same content just without requiring any logging in):

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_25_see/configuration/guide/swstack.html

Best regards,

Peter

Collin Clark · ‎09-14-2010

Sorry about the URL. Cisco's site randomly logs me in and out. When I went to get the URL I looked and it did not have me logged in so I assumed it never logged me in, but I guess it did.

Andy White · ‎09-15-2010

Thanks, great doc. Basically as log as provision them properly like I have before I should be fine I guess. All our switches are WS-C3750G-24T-S so if I get the WS-C3750G-48T-S and use the same IOS that they are using which is 12.2(53)SE - C3750-IPBASE-M?

one of the stacks:

Switch Ports Model SW Version SW Image

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

* 1 24 WS-C3750G-24T 12.2(53)SE C3750-IPBASE-M

2 24 WS-C3750G-24T 12.2(53)SE C3750-IPBASE-M

Thanks in advance for your advise.