5-3
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 5
Configuring Redundancy
Route Processor Redundant Operation (Catalyst 8540 MSR)
Configuring Route Processor Redundancy (Catalyst 8540 MSR)
For redundant operation, the following requirements must be met:
•
Two route processors and three switch cards are required.
•
The route processors must have identical hardware configurations. This includes variables such as
DRAM size, presence or absence of network clock modules, and so on.
•
Both route processors must have the same functional image. For more information, see
Chapter 26,
“Managing Configuration Files, System Images, and Functional Images.”
•
Both route processors must be running the same system image.
•
Both route processors must be set to autoboot (a default setting).
If these requirements are met, the Catalyst 8540 MSR runs in redundant mode by default. The tasks
described in the following sections are optional and used only to change nondefault values.
Forcing a Route Processor Switchover (Catalyst 8540 MSR)
You can manually force the secondary route processor to take over as the primary using the
redundancy
force-failover main-cpu (Catalyst 8540 MSR)
command.
Note
When you use the
redundancy force-failover main-cpu (Catalyst 8540 MSR)
command the SSH RSA
key pair is automatically generated on the new primary route processor. For more information, see
Chapter 4, “Configuring Secure Shell.”
Soft PVC (two-ended)
Yes
Point-to-Multipoint Soft PVC
Yes
Soft PVC Termination on CPU
No
SPVP
Yes
CES PVC
Yes
CES SVC
Yes
CES Soft PVC
Yes
Frame Relay PVC
Yes
Frame Relay Soft PVC
No
Table 5-1
Connection Preservation During Route Processor Switchover (continued)
Connection Type
Preserved During Switchover
