Performing a rolling upgrade
Ensure that you have a scheduled maintenance window. Do not change network configurations while the primary and secondary switches are at different versions. Make sure that both switches are updated to the same version within two hours by completing the steps in this topic.
This procedure is NOT hitless, but it does aim to minimize the amount of traffic loss. It is advisable to have a support engineer from HPE available during this procedure.
- Back up the current software to the secondary image bank. Run the
show version
command. If theActive Image
isprimary
, copy the primary image to the secondary image bank:switch# copy primary secondary
If the
Active Image
is the secondary image, you do not need to run thecopy primary secondary
command because the current software is already in the secondary image bank. Save a copy of the running configuration on both devices. One way to save a copy of the running configuration is to enter the following command:
switch# copy running-config sftp://<username>@<IP>/filename vrf mgmt
Check the status of the
show vsx brief
command and validate the ISL is in-sync and the keepalive is established. Also, verify which switch is the secondary switch. This procedure will have you upgrade the secondary switch first.Check the output of the
show lacp interfaces multi-chassis
command and note which LACP interfaces are in a forwarding state of up.