Cisco ASR 1000 module ASR1000-ESP10

Ten-gigabit forwarding is a processor function

ASR1000-ESP10 is the Cisco ASR 1000 Series 10-Gbps Embedded Services Processor. It supplies a centralized forwarding engine inside a supported router. This order identifies the ESP module; it does not include or establish a complete chassis, route processor or network-interface configuration.

Check the ESP slot arrangement in the target router

The hardware guide states that the original ASR1002 supports one ESP5 or ESP10. That single-slot arrangement does not provide a redundant ESP pair. Cisco also distinguishes fixed or integrated forwarding designs on other ASR models, so compatibility cannot be inferred from the ASR 1000 family name alone.

Keep the noncrypto variant out of an encryption replacement

ASR1000-ESP10-N is a separate non-encryption module with noncrypto-image restrictions. Preserve the full ESP10 identifier when replacing an encryption-capable processor. Verify the actual IOS image, licensing and workload; this page does not assign an encrypted-traffic performance guarantee to the 10-Gbps forwarding class.

A legacy spare requires a migration decision

The exact ESP10 appears in Cisco c51-734572 with end of sale on April 29, 2016 and final support on April 30, 2021. Review saved configuration, the host bill of materials and recovery needs before procurement. Seller inventory is not evidence of renewed Cisco support.

Cisco official hardware documentation | Cisco official lifecycle notice