Cisco Smart Switches Configuration Guide for DPU Security Mode, Release 10.6(x)

Configure High Availability

Updated: August 23, 2026

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Configure Hypershield high availability by setting a loopback source interface, specifying the peer IP address, and activating HA.

After setting up High Availability (HA) connectivity and establishing the loopback IP reachability, set up the high-availability configuration for the Hypershield service subsystem.

Perform these steps to establish HA connectivity and configure HA.

Procedure

Use the service system hypershield command to enter service system mode and access the configuration mode for the Hypershield system.
Example:
```
switch(config)# service system hypershield
```
Use the high-availability command to enter the sub-mode specifically for high-availability settings.
Example:
```
switch(config-svc-sys)# high-availability
```
Set the source interface using the source-interface command to designate the interface whose IP address is used as the source address for the HA connectivity.
Example:
```
switch(config-svc-sys-ha)# source-interface loopback101
```
Note

The source interface should be a loopback interface.
Use the peer command to specify the HA IP address of the peer switch. Note that the peer IP address must match the IP address of the configured HA source-interface on the peer.
Example:
```
switch(config-svc-sys-ha)# peer 192.168.10.2
```
Note

Only a single peer IP may be configured at any time and must be an IPv4 address.
Activate the configuration using the no shutdown command to enable HA.
Example:
```
switch(config-svc-sys-ha)# no shutdown
```
Note

High Availability remains inactive until this command is executed and service firewall is configured.

. Use the exit command to exit the configuration mode.

Example:

switch(config-svc-sys-ha)# exit
switch(config-svc-sys)# exit
switch(config)# exit

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