Have you looked into running HSRP on the distribution switches. To do so, you will have to run layer 3 at the distribution layer as well. It works - I have our network set up in the Core-distribution-access design with HSRP running at the distribution area. Take a look at these links...
http://www.cisco.com/warp/public/cc/so/cuso/epso/entdes/highd_wp.htm http://www.cisco.com/warp/public/cc/so/neso/lnso/cpso/gcnd_wp.htm http://www.cisco.com/warp/public/cc/so/neso/lnso/cpso/camp_wp.htm Regards, Robert -----Original Message----- From: Thomas N. [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 01, 2001 11:04 PM To: [EMAIL PROTECTED] Subject: Redundancy between 6506 with a single sup. eng. each box? [7:25028] Hi Group, I have this scenario and wonder if it is possible to setup the topology with redundancy. I have a CAT 6509 acting as the core switch (say switch A), and 2 other CAT 6506 acting as the distribution switches (say switch B and C). Both switch B and C have fiber uplinks to core switch A. Switches A and B also have a redundant fiber between them. Regarding the hardware, The core 6509 has 2 supervisor engines with dual MSFCs. The two 6506 have only one supervisor engine and their MSFC DO NOT do routing at all. My concern/question is that if the supervisor engine of one of the distribution 6506 died, can access switches attached to this 6506 re-route to the redundant link? I doubt this will work because the the supervisor engine of the 6506 has all the configuration (including vlans) for the ports/trunks attached to access switches died. Is there any way to to set them up so that if the supervisor engine on one distribution 6506 dies, all ports/trunks on this 6506 can still be OK with redundant link? Putting dual supervisor engines on each 6506 will be my last solution. Thanks All! Thomas N. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25048&t=25048 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

