From: Tyson Scott (tscott@ipexpert.com)
Date: Mon Jan 26 2009 - 14:59:12 ARST
It is vitally important to have the redundant links when you have more than
one switch in a stack
SW1 StPort 1 to SW2 STPort 2
SW2 StPort 1 to SW3 STPort 2
SW3 STPort 1 to SW1 STPort 2
Thus if SW2 Fails SW1 and SW3 can still communicate over the second
stackwise cable. This is a simple scenario. I believe you can have up to 6
or 8 in a stack. Can't remember off the top of my head.
Regards,
Tyson Scott - CCIE #13513 R&S and Security
Technical Instructor - IPexpert, Inc.
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Travis Niedens
Sent: Monday, January 26, 2009 11:31 AM
To: ccieking@gmail.com; ccielab@groupstudy.com
Subject: RE: StackWise
You can link them with one however they will run at 16G vs. 32 on the
backplane and you won't have redundancy if there is a stackwise port issue.
The links for two cables should be:
Sw1, Port 1 <----> Sw2, Port 2
Sw1 , Port 2 <----> Sw2, Port 1
I would recommend using two stackwise cables. If 3750s came from Cisco they
should each have one already.
Travis
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccieking@gmail.com
Sent: Monday, January 26, 2009 7:31 AM
To: ccielab@groupstudy.com
Subject: StockWise
Hi Experts
We have two Cisco Catalyst 3750-E 24-Port Gigabit Ethernet Switch
(WS-C3750E-24PD-S) with stackWise ports.
Is it enough one stackWise cable to implement this technology?
SW1 #1 - SW2 #2
Or
Do we need TWO stackWise cable for this?
SW1 #1 - SW2 #2
SW2 #1 - SW1 #2
What is the difference between these two methods.
Can anyone give some details
I appreciate your help
Advance thanks
Blogs and organic groups at http://www.ccie.net
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