Chapter 10 Managing PNNI Routing
144 Avaya M770 ATM Switch User’s Guide
Due to the internal PNNI implementation in Avaya M770 ATM switch, the Master
Agent module has the role of PDC (PNNI Designated Card). The PDC is the module
that advertises the switch Nodal Information PTSE, and in hierarchical PNNI, this is
the module that acts as PGL/LGN (in case the switch was elected Peer Group
Leader). As a result, when the user uses the /route pnni config show
command on a sub-agent module, some configuration parameters would be
unknown to the sub-agent module. Those parameters would appear as dashed line.
The parameters for the Logical Levels are:
• Operational status of a level
• Node ATM address
All above configuration variables are explained in subsequent chapters.
PNNI Administrative Status
Each PNNI node has an administrative (admin) status. This parameter indicates
whether this node has to be administratively up or down. The physical node (on the
1st level) admin status is always up. The admin status of a higher level node (logical
node) is determined by the user. It shall be up if the user wants the logical node to
be active.
Note: The admin status of a logical node is important when you want the switch to
become a Peer Group Leader, and an Logical Group Node at the higher level. In
order to achieve that you'll have to set both the Leadership Priority of the node at
the lower level to a value greater than 0, and the admin status of the next higher
level to 'up'.
Showing PNNI node admin status
To show the admin status of a node use the following command:
Command: M15-155s8:/>route pnni config admin show 1
Output: Admin Status:
Level 1 - Up