Difference between LSP and ESS survivability mode ?

[Optman]

Hi all

I have some confusion between LSP and ESS survivability configuration, so as my understand LSP can only take the control of its local Gateways (Not for remote Gateways) when Primary server down...!! but ESS can take the whole control of the Gateways either on local or on remote sites when Primary down....please correct me if I'm wrong ?

I need some sample explanation

Thanks in advance


Best regards

 

[DAVIDPAYNE]

You are correct. An ESS is suppose to be a backup of the Main system, and will take control of the complete system in the event that the main site/server fail. And LSP is only for local survivability, i.e. local line access etc.

 

[Optman]

Many thanks DAVIDPAYNE, Now I got it....

 

[alcaya69]

thank you for this explanation, I am also asking the question

 

[Tolson]

Well lets be correct here, an ESS can take registration from only two types of devices, an IPSI or an H.248 gateway, therefore it can control everything on your network. A LSP can only accept registrations from an H.248 gateway but it can go across locations so depending on where the network breaks you could have multiple sites register to one LSP.

 

[lopes1211]

I'll 2nd Tolson. Said another way, the only real difference is hardware/capacity and that an LSP (S8300) cannot control an IPSI/PN while an ESS can. i.e. - if you had no port networks (only h248 gateways), and less phones/trunks than the max supported by an S8300, there would be no functional/operational difference between the 2. An LSP does not know or care if a gateway is physically located in the building as the LSP.

-CL