Good afternoon  Our two datacentre switches are currently running cat4500e-ENTSERVICESK9-M Version 12.2(50)SG7, We would like implement policy based routing, I have had a look around and the most logical upgrade would seem to go to cat4500e-entservic...

Hope you can help, I have a number of Cisco 1721 boxes with BRI Isdn adapters in them, I need to replace these interfaces with wic-1t serial interfaces for X21 connections, will i have change the IOS?

Hope you can help, I am trying to back up the DSL lines for our company, we have currently got cisco 1721 routers at all sites doing a 128k backup dialing in the event of DSL failure. What I need to know is can I replace the BRI ISDN cards with PRI I...