CPU spikes to 99% after upgrade. Cause: The old spanning-tree vlan 1-4094 macro. This image introduces per-VLAN rapid-pvst threads. Fix: no spanning-tree vlan 1-4094 then specifically enable only used VLANs.
rommon 1 > BOOT=flash:old-image.bin rommon 2 > boot cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin
: When upgrading to this version, you must ensure your device's ROM Monitor (ROMMON) CPU spikes to 99% after upgrade
Ensure you have enough room on the bootflash: or slavebootflash: . This image typically requires around 200MB–300MB of space. BOOT=flash:old-image.bin rommon 2 >
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