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Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Chapter 2 Configuring General Switch Features
Configuring PNNI Node Parameters
Step 5
To display the PNNI node configuration, enter the command:
mgx8850a.7.PXM.a>
dsppnni-node
The switch displays a report similar to the following example:
mgx8850a.7.PXM.a>
dsppnni-node
node index: 1 node name: 8850_LA
Level............... 56 Lowest.............. true
Restricted transit.. off Complex node........ off
Branching restricted on
Admin status........ up Operational status.. up
Non-transit for PGL election.. off
Node id...............56:160:47.00918100000100001a531c2a.00001a531c2a.01
ATM address...........47.00918100000100001a531c2a.00001a531c2a.01
Peer group id.........56:47.00.9181.0000.0100.0000.0000.00
Setting and Viewing the SPVC Prefix
The Cisco PNNI Network Planning Guide for MGX and SES Products provides guidelines for selecting
the SPVC prefix. The SPVC prefix is the ATM prefix that PNNI advertises for all SPVCs and Soft
Permanent Virtual Paths (SPVP) on this node. The ATM address for each SPVC and SPVP is the
combination of the SPVC prefix and a port identification number.
You can configure one SPVC node prefix per node. To set the SPVC prefix, use the following procedure.
Note
Although the SPVC prefix is set to match the first 13 bytes of the PNNI node address by default,
changing either the PNNI node address or the SPVC prefix has no effect on the other setting. If the PNNI
node ATM address and the SPVC prefix do not match, the switch advertises both prefixes instead of just
one, and this advertising takes additional bandwidth.
Note
You can change the SPVC prefix only when no SPVCs or SPVPs have been defined. Once an SPVC has
been defined, you must delete all SPVCs before you can change the SPVC prefix. For information on
deleting SPVCs that terminate on PXM1E cards, see the “
” section in
“Provisioning PXM1E Communication Links.”
For information on deleting SPVCs that terminate on
service modules, refer to the service module documentation listed in
Step 1
Establish a configuration session using a user name with SUPER_GP privileges or higher.
Step 2
Use the following command to display the current SPVC prefix:
mgx8850a.7.PXM.a>
dspspvcprfx
The switch response is similar to the following example:
mgx8850a.7.PXM.a>
dspspvcprfx
SPVC Node Prefix: 47.00918100000000001a531c2a
Tip
If the SPVC prefix begins with 47.009181000000, the SPVC prefix is probably set to the default
value. To display the current PNNI node address, enter the dsppnni-node command.