LSP not activating after Network Problem

[Freedom12]

Hi,

"We experienced loss of network connectivity (Main site) last week that caused our IP phones here in remote office to went out of service. The downtime last for more than an hour but unfortunately, our LSP here in remote site was not able to activate and provide services to our local ip phones here in remote site. Is there any possible logs that I can retrieve as to why the LSP did not activate.


Thanks,

Freedom12

 

[kjrnec]

We had the same problem and I found this post for dealing with LSP's from another Avaya web board. I still haven't had time to test our remote sites to make sure they will register after an network outage.

1) In the media gateway where the LSP is housed and any others on site, you want do to do a ‘show mgc list’ This will show you the listing of IP addresses that the MG will attempt to register to. If your LSP IP address is NOT in that list, then the LSP will never become active during an outage

2) Check your DHCP scopes for the phones and/or your IP-network-region definition for the phones. In at least 1 place, you need to have the IP address of the LSP that you expect the phones to fail over to. If you don’t have access to your DHCP servers, then you can manage this from the PBX by making sure the IP subnet is properly defined in the ‘ip-network-map’ form and assigned to a network region and then make sure that ip-network-region has the LSP defined as ‘Backup Servers’. It does not hurt to have it defined in both places.

Just as a note, the LSP never truly becomes active until a Media Gateway registers to it. You can have a thousand phones trying to register with the LSP, but that LSP will not accept a phone registration until it has at least 1 Media Gateway registered.

 

[98Converter]

Because as stated, the LSP server will only accept registrations when active, I don't think it's recommended to put the LSP Server IP in your Option 242/176 scopes.

If the phones can't find the primary MCIPADD, then they will sit at discover trying to register to the LSP server, instead of using their AGL.

Thanks,
98C

We are what we repeatedly do. Excellence, then, is not an act but a habit. ARISTOTLE 384-322 B.C.

 

[Freedom12]

Hi kjrnec / 98converter,

Thank you both to your inputs it makes sense now, I will try to extract all the configuration and I will post it you and please advice me if all the configurations are correct so in the event that there is a network outage we will not encounter this again.

Thank you both and Appreciate you inputs!


Thanks and Best Regards,
Freedom12