IP Address Translation for FOXMAN-UN Element Agents
Initial Situation
In order FOXMAN-UN be capable of managing equipment so called Element Agents must be defined in its NEM Configurator. An Element Agent basically defines a Gateway from FOXMAN-UN to equipment of a certain type and vice versa. The most important parameters of such an Agent are:
• Name
• Type
• Manager Address
• Host Name
• UDP Port
Following as an example the parameters of an Element Agent of type FOX61EA as defined in FOXMAN-UN:
Agent parameters are stored in the FOXMAN-UN database and thus are part of the database copy over operation from Main to Standby and vis versa in case the Main/Standby Solution is used. As Main and Standby Servers must have different Host Names and IP addresses for its network interface cards it becomes obvious that Host Names and IP addresses of Element Agents must be exchanged after the database copy over operation has occurred.
Taking the Network Setup of chapter Network Setup as an example imagine that we have two servers with to Element Agents defined as follows:
Main Server | Standby Server | ||
|---|---|---|---|
Hostname | nmsMain | Hostname | nmsStandby |
Network C IP | 172.20.162.223 | Network D IP | 192.168.32.148 |
FOX61x Agent in FOXMAN-UN of Main Server | FOX61x Agent in FOXMAN-UN of Standby Server | ||
|---|---|---|---|
Name | FOX61x Agent | Name | FOX61x Agent |
Manager Address | 172.20.162.223 | Manager Address | 192.168.32.148 |
Host Name | nmsMain | Host Name | nmsStandby |
It becomes obvious that after the database of the Main Server, containing the FOX61x Agent data, has been copied over to the Standby Server must be adapted to reflect the corresponding FOX61x Agent data on the Standby Server. Meaning IP address 172.20.162.223 must be replaced through 192.168.32.148 and hostname “nmsMain” must be replaced by “nmsStandby”. The same of course also applies for the opposite operation, namely when copying the Standby Server database to the Main Server. Thereafter, IP address 192.168.32.148 must be replaced through 172.20.162.223 and hostname “nmsStandby” must be replaced by “nmsMain”.