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Sep 14th, 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

I have this problem too.
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Collin Clark Tue, 09/14/2010 - 09:05

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 Tue, 09/14/2010 - 09:13

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

Copyright (c) 1986-2009 by Cisco Systems, Inc.

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
Collin Clark Tue, 09/14/2010 - 12:03

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 Wed, 09/15/2010 - 03:40

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.

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