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Unless the resulting configuration is mixed PE and IP Connect, the above upgrades require the
replacement of Port Networks (G650 Media Gateways) with H.248 Media Gateways.
Upgrade procedures for Duplicated ESS Servers
!
Important:
When you upgrade a duplex ESS from an earlier release of Communication
Important:
Manager to Release 5.2, the ESS uses the PE Active Server IP address
(IP-alias). The ESS servers are upgraded before the main server. In a situation
when the ESS is upgraded and the main server is not, the main server has no
concept that an ESS has a PE Active Server IP Address. The upgraded ESS
uses the PE Active Server IP Address that is shared by the duplicated pair.
Duplex ESS upgrade workflow
On each duplex ESS server, complete the following tasks:
1. Upgrade the ESS.
2. Access the System Management Interface (formerly known as Maintenance Web
Interface).
3. Configure the PE interface. Ensure that PE is assigned an IP-alias address and ensure
that PE is assigned to the same NIC as the corporate LAN.
4. Verify that the Server A of the duplex ESS is active.
After you upgrade each duplex ESS pair of servers, complete the following tasks on the main
server:
1. Change the node name of server A for the duplicated pair to the node name configured for
the PE interface. If the node name does not exist, define a new node name with the IP
address that you configured for the PE interface of the duplex ESS.
2. Save translations.
After you have upgraded all the ESS and LSP servers in the system, complete the following
tasks on the main server:
1. Upgrade the main server(s).
2. If the system has any duplicated ESS servers, administer the Server A node name of
each duplicated ESS pair on its respective survivable-processor SAT screen.
Duplicated Enterprise Survivable Server (ESS) upgrade
Issue 1 May 2009
27
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