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10-1
Cisco IOS XE Integrated Session Border Controller Configuration Guide for the Cisco ASR 1000 Series Aggregation Services Routers
OL-15421-01
10
High Availability Support
This chapter describes high availability support for the Integrated Session Border Controller (SBC) on
the Cisco ASR 1000 Series Aggregation Services Routers.
Contents
• Integrated Session Border Controller High Availability, page 10-1
• Hardware Redundancy, page 10-2
• Software Redundancy, page 10-2
• Route Processor Redundancy (RPR), page 10-2
• SSO Support, page 10-3
• ISSU Support, page 10-3
Integrated Session Border Controller High Availability
The Cisco ASR 1000 Series Routers include the Cisco ASR 1002 , Cisco ASR 1004 , and Cisco ASR
1006 Routers. The different models support different types of redundancy. Integrated Session Border
Controller supports the redundancy available on each model.
On the Cisco ASR 1002 and Cisco ASR 1004 Routers, only software redundancy is available. These
models have dual Cisco IOS software modules running on the same Route Processor, with one active and
the other in standby mode.
The Cisco ASR 1006 Routers offer dual hardware redundancy and software redundancy.
Integrated SBC high availability is provided in the standard image for the Cisco ASR 1000 Series
Routers. There is no special configuration required.
For additional information, see the “High Availability Overview” section in the Cisco ASR 1000 Series
Aggregation Services Routers Software Configuration Guide. Also see the Cisco IOS High Availability
Configuration Guide for information on high availability features that are on other Cisco platforms and
that work identically on the Cisco ASR 1000 Series Aggregation Services Routers.