Implications for deployment on Catalyst 4500 platforms
What does loading cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin unlock on your switch?
: Represents the Cisco IOS XE version (3.11.5E) . The "E" flags an enterprise campus LAN switching release train.
This structural shift guarantees high availability on Catalyst switches: cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin
: Represents the Cisco IOS XE Release 3.11.5E train version. The E stands for Extended Maintenance, signaling a highly stable release built for prolonged production lifecycles.
cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin a software image for the Cisco Catalyst 4500-E Series Switch . Specifically, it corresponds to Cisco IOS XE Release 3.11.5E (which maps to Cisco IOS Release 15.2(7)E5). Key Specifications & Identification
IOS‑XE release 3.11.xE provides enterprise‑grade switching and routing functionality. The universal image supports comprehensive Layer 2 features including VLANs, spanning tree enhancements, and link aggregation via EtherChannel. On the Layer 3 side, the release includes full support for OSPF, EIGRP, BGP, and IS‑IS routing protocols, making the Catalyst 4500 series suitable for distribution and core layer deployments in campus networks. Implications for deployment on Catalyst 4500 platforms What
: Engineered for the Supervisor Engine 8-E (WS-X45-SUP8-E), leveraging its dual-core 2.2GHz CPU and advanced line-rate hardware forwarding capacities. Feature Sets via Software Activation
: Map to the classic underlying Cisco IOS code base (Version 15.2(7)E5) .
show version
Switch# dir bootflash:
The keyword refers to a highly specific, enterprise-grade Cisco IOS XE software image designed for the Cisco Catalyst 4500E network switch platform. Specifically, this system binary is compiled for chassis equipped with the Supervisor Engine 8-E (and 8L-E) , which serves as the centralized brain of the modular switching infrastructure.
This version (15.2(7)E5) is post- Cisco Smart Licensing . While it still supports traditional RTU, it also attempts to phone home to Cisco Smart Software Manager (CSSM). Ensure your firewall rules allow smartreceiver.cisco.com if you are in a licensed enterprise environment, or configure the switch for "Smart Licensing using Policy" if you want offline operation. Specifically, it corresponds to Cisco IOS XE Release 3