Cisco ASR1002 Configuration Guide - Page 229

High Availability Overview Software Redundancy on the Cisco ASR 1000 Series Routers Table 14 Hardware Redundancy Overview Hardware Enhanced Services Processor Route Processor SPA SIP Support for Dual Hardware Configuration on Cisco ASR 1001 Router Support for Dual Hardware Configuration on Cisco ASR 1002 Router Support for Dual Hardware Configuration on Cisco ASR 1004 Router Support for Dual Hardware Configuration on Cisco ASR 1006 Router Failover Behavior No No No Yes If an active ESP experiences a hardware or software event that makes it unable to forward traffic (such as a hardware failure, an OIR, or a manual switch) and a standby ESP is configured, the standby ESP becomes the active ESP with the possibility of a minor interruption (less than 200 ms). No No No Yes If an active RP experiences an event that makes it unable to forward traffic (such as a hardware failure, a software failure, an OIR, or a manual switch) and a standby RP is configured, the standby RP immediately becomes the active RP. No No No No No standby configurations are available for SPAs. If a SPA fails, that particular SPA is down and unable to forward traffic. In the event of a SPA shutdown, all other SIPs and SPAs on the router continue to be fully operational. No No No No No standby configurations are available for SIPs. If a SIP fails, all SPAs in that SIP are down and unable to forward traffic. In the event of a SIP shutdown, all other SIPs and SPAs on the router continue to be fully operational. Software Redundancy on the Cisco ASR 1000 Series Routers This section covers the following topics: • Software Redundancy Overview, page 4 Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 3