Re: SRX 3400 in Cluster config is synced but new configuration is not applying

Hi M.ali,

You can check the links below for the methods of upgrading.

1. ISSU way

http://www.juniper.net/documentation/en_US/junos/topics/task/operational/chassis-cluster-both-device-use-issu-upgrading.html

2. Minimal Downtime method.

https://kb.juniper.net/InfoCenter/index?page=content&id=KB17947&actp=search

You can use any of the methods, however Jtac recommendation is to atleast have an onsite person to be available just in case anything goes wrong.

If possible use the minimal downtime method to be on a safer side just in case anything goes wrong, you will have atleast one node passing the traffic.

Also if you are going in for ISSU please read the KB below with liitations related to ISSU upgrade.

https://kb.juniper.net/InfoCenter/index?page=content&id=KB17946

Hope this Helps.

regards,

Guru Prasad