Features like Non-Stop Forwarding (NSF) and Stateful Switchover (SSO) ensure that if a Supervisor engine fails, the network stays up.
Before upgrading your Catalyst 4500E to cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin , keep these steps in mind: cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin
For older Supervisor Engines, this version provides a modern feature set without overutilizing onboard DRAM or Flash memory. cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin
Ensure you have enough room on the bootflash: or slavebootflash: . This image typically requires around 200MB–300MB of space. cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin