Specifications

6-3
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 6 Managing PNNI Nodes and PNNI Routing
Managing PNNI Nodes
Step 3 Display the current PGL priority of the node that will become PGL or a back up PGL by entering the
dsppnni-election command as shown in the following example:
8950_SF.7.PXM.a > dsppnni-election
node index: 1
PGL state...... OperNotPgl Init time(sec)....... 15
Priority....... 0 Override delay(sec).. 30
Re-election time(sec) 15
Pref PGL...............0:0:00.000000000000000000000000.000000000000.00
PGL....................0:0:00.000000000000000000000000.000000000000.00
Active parent node id..0:0:00.000000000000000000000000.000000000000.00
node index: 2
PGL state...... Starting Init time(sec)....... 15
Priority....... 0 Override delay(sec).. 30
Re-election time(sec) 15
Pref PGL...............0:0:00.000000000000000000000000.000000000000.00
PGL....................0:0:00.000000000000000000000000.000000000000.00
Active parent node id..0:0:00.000000000000000000000000.000000000000.00
In the example above, the PGL state indicates the PGL status of each of two logical nodes, and the
priority value is what is used to determine if the node will become PGL. Since a PGL represents the peer
group at a higher level, logical node 1 (node index 1) is the only node that can become a PGL. In this
example, both logical nodes are set to the default value 0, and this value prevents a node from becoming
a peer group leader.
Step 4 Set the PNNI priority for the node with the cnfpnni-election command as follows:
8950_SF.7.PXM.a > cnfpnni-election node-index -priority value
Replace node-index with the index that identifies the logical node you are modifying, and replace value
with the new priority value. A zero value prevents the node from becoming a PGL. If only one node in
a peer group has a non-zero priority, that node will become PGL. If multiple nodes have non-zero priority
values, the node with the highest priority value becomes PGL. The following example shows what
happens after you set the priority level and view the PGL status.
8950_SF.7.PXM.a > cnfpnni-election 1 -priority 200
8950_SF.7.PXM.a > dsppnni-election
node index: 1
PGL state...... AwaitUnanimity Init time(sec)....... 15
Priority....... 200 Override delay(sec).. 30
Re-election time(sec) 15
Pref PGL...............56:160:47.00918100000100036b5e31b3.00036b5e31b3.01
PGL....................0:0:00.000000000000000000000000.000000000000.00
Active parent node id..0:0:00.000000000000000000000000.000000000000.00
node index: 2
PGL state...... Starting Init time(sec)....... 15
Priority....... 0 Override delay(sec).. 30
Re-election time(sec) 15
Pref PGL...............0:0:00.000000000000000000000000.000000000000.00
PGL....................0:0:00.000000000000000000000000.000000000000.00
Active parent node id..0:0:00.000000000000000000000000.000000000000.00