Cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin Work Link

: Stands for Software Production Assembly, meaning it is a digitally signed, authentic Cisco image. 03.11.04.E : This is the IOS XE version.

Support for Cisco TrustSec, IEEE 802.1AE (MACsec) encryption, and robust DHCP snooping/Dynamic ARP Inspection. 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. : Stands for Software Production Assembly, meaning it

In the world of networking, "newer" isn't always "better." Many network engineers stick with the (03.11.04.E) image for several reasons: For older Supervisor Engines, this version provides a

Since this is a "Universal" image, use the license boot level [ipbase | entservices] command to set your desired feature set before reloading. Conclusion

This release includes patches for various PSIRTs (Product Security Incident Response Team) advisories that affected earlier versions of the 3.x.x train.

Features like Non-Stop Forwarding (NSF) and Stateful Switchover (SSO) ensure that if a Supervisor engine fails, the network stays up.