Forcing Switchover for HA Nodes

When performing hardware maintenance on the Acme Packet 1100, it is best to minimize any risk of interrupting network traffic or losing data. If the Acme Packet 1100 is configured as an HA node, only work on the Acme Packet 1100 that is in standby mode.

To determine the HA state of each Acme Packet 1100 in an HA pair, review the HA LED on the front panel or use the ACLI show health command. Once the Acme Packet 1100 due for maintenance is in standby mode, continue with the appropriate procedures to service it.

To perform maintenance on the active Acme Packet 1100, manually force the two Acme Packet 1100s to switch HA states. Performing a switchover forces the currently active Acme Packet 1100 to standby mode while the current standby Acme Packet 1100 will become the active system, assuming all traffic processing and forwarding.

Note:

The following procedure is only applicable to Acme Packet 1100s in an HA deployment.

To force a switchover between Acme Packet 1100 nodes:

Confirm that the relevant systems on the active/standby are synchronized with the show health command. Type show health and press Enter on each system.

Figure 5-2 Issuing the Show Health Command - Active System

Figure 5-3 Issuing the Show Health Command - Standby System
Confirm that the two current configurations match by typing display-current-cfg-version and press Enter at the ACLI prompt.
```
NETNETSBC1# display-current-cfg-version
Current configuration version is 5
NETNETSBC1#
```
```
NETNETSBC2# display-current-cfg-version
Current configuration version is 5
NETNETSBC2#
```
Note:
While the two current configuration version numbers on the two systems MUST match each other, they do not have to match the shared running configuration version.

Confirm that the running configuration of each matches by typing display-running-cfg-version and pressing Enter at the ACLI prompt.

NETNETSBC1# display-running-cfg-version
Running configuration version is 5
NETNETSBC1#

NETNETSBC2# display-running-cfg-version
Running configuration version is 5
NETNETSBC2#

Initiate a switchover on one chassis by typing notify berpd force and pressing Enter at the ACLI prompt.
```
NETNETSBC1# notify berpd force
```
Wait for the other to transition to the standby state. Confirm that this is in the standby state by typing show health and pressing Enter at the ACLI prompt.
```
NETNETSBC2# show health
```
Refer to the Upgrade section of the Maintenance and Troubleshooting Guide (400-0063-40A) for more information.