Maintaining core campus switches requires a balance between feature sets and stability. The release of 03.11.00.E (Internal version
Supports VSS for improved high availability, scalability, and bandwidth utilization. 3. Supported Hardware Components cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin
Before deploying this image, it is critical to verify hardware and ROMMON compatibility. ROMMON Requirements : Many administrators on the Cisco Community forums Maintaining core campus switches requires a balance between
Always verify SHA256 checksum before deployment and consult Cisco Feature Navigator for exact hardware support. This image does not support 4500 non-E series (e.g., 4503, 4506 original). Switch# verify /md5 bootflash:cat4500e-universalk9
Switch# verify /md5 bootflash:cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin Use code with caution.
SSH performance drop after upgrade. Solution: Disable weak KEX algorithms: ip ssh server algorithm kex diffie-hellman-group14-sha1
| ✅ | ❌ When to avoid | | :--- | :--- | | You need SSH and strong crypto (K9) | You require FIPS 140-2 validation (use the k9_fips image instead) | | Running Sup7L-E through Sup9E | Running older Sup6L-E or Sup2T (use cat4500-entservicesk9 train) | | You want full flexibility to change licensing on the fly | You have strict regulatory need for "permanent" license lock | | Mix of SPA and non-SPA line cards | You are on 4500-X series (different binary) |
Maintaining core campus switches requires a balance between feature sets and stability. The release of 03.11.00.E (Internal version
Supports VSS for improved high availability, scalability, and bandwidth utilization. 3. Supported Hardware Components
Before deploying this image, it is critical to verify hardware and ROMMON compatibility. ROMMON Requirements : Many administrators on the Cisco Community forums
Always verify SHA256 checksum before deployment and consult Cisco Feature Navigator for exact hardware support. This image does not support 4500 non-E series (e.g., 4503, 4506 original).
Switch# verify /md5 bootflash:cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin Use code with caution.
SSH performance drop after upgrade. Solution: Disable weak KEX algorithms: ip ssh server algorithm kex diffie-hellman-group14-sha1
| ✅ | ❌ When to avoid | | :--- | :--- | | You need SSH and strong crypto (K9) | You require FIPS 140-2 validation (use the k9_fips image instead) | | Running Sup7L-E through Sup9E | Running older Sup6L-E or Sup2T (use cat4500-entservicesk9 train) | | You want full flexibility to change licensing on the fly | You have strict regulatory need for "permanent" license lock | | Mix of SPA and non-SPA line cards | You are on 4500-X series (different binary) |