HA sessions synchronization initiated by or to the Active.

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HA sessions synchronization initiated by or to the Active.

L6 Presenter

Hi Guys,

 

Got a random question regarding the sessions synchronisation when running HA :0 If l understood correctly only the sessions that are not initiated by the Active device will be synchronised to the Passive device. Does it mean that all OSPF, BGP and l believe VPN tunnels will be re-established?  So only traversing sessions are synchronised and not interrupted during failover.

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Accepted Solutions

Community Team Member

Yes that is correct.

 

 

 

https://live.paloaltonetworks.com/t5/Learning-Articles/Why-Does-BGP-Have-to-Be-Reestablished-After-...

 

Graceful restart can help I think.

 

Cheers,

-Kiwi.

LIVEcommunity team member, CISSP
Cheers,
Kiwi
Please help out other users and “Accept as Solution” if a post helps solve your problem !

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4 REPLIES 4

Cyber Elite
Cyber Elite

Not positive on the answer but when I do an HA failover the VPN tunnel temporarly goes down and then will re-establish. 

Thanks! l always thought all sessions are floating/synchronised but looks like it is not the case

Community Team Member

Yes that is correct.

 

 

 

https://live.paloaltonetworks.com/t5/Learning-Articles/Why-Does-BGP-Have-to-Be-Reestablished-After-...

 

Graceful restart can help I think.

 

Cheers,

-Kiwi.

LIVEcommunity team member, CISSP
Cheers,
Kiwi
Please help out other users and “Accept as Solution” if a post helps solve your problem !

Read more about how and why to accept solutions.

The sessions are getting reestablished automatically (at least can confirm with BGP and IPSec VPN). Thanks

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