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6-3
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 6 High Availability Overview
Hardware Redundancy Overview on the Cisco ASR 1000 Series Routers
Table 6-1 Hardware Redundancy Overview
Hardware
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
Enhanced
Services
Processor
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).
Route Processor 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.
SPA 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.
SIP 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.