

Cisco 12000 Memory Option MEM-PKT-512-UPG Line Card Buffer Memory,256MB/256MB (Tx/Rx)
Ensure the module is properly seated, check compatibility, and reboot the router. If issues persist, contact Cisco support.
Yes, Cisco offers other memory modules, but MEM-PKT-512-UPG is optimized for the 12000 Series.
Generally, no firmware upgrade is needed, but it's recommended to check with the latest Cisco updates.
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