Specifications

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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 Route and Link Selection
Step 2 Enter the addpref command to set up your preferred route as follows:
8850_LA.7.PXM.a > addpref [-name <yes|no>] [-h1 <persNodeIndex/portId>]...[-h20
<persNodeIndex/portId>]
Table 6-5 describes the addpref command parameters.
Note After you creates a preferred route, the system returns a route index in the range 1-5000. This route index
is necessary for related commands, such as delpref, dsppref, and modpref. To see a list of route indexes,
use the dspprefs command.
Step 3 Enter the dsppref <rte_index> [-name {yes|no}] command to verify the preferred route was configured
correctly. Replace <rte_index> with the preferred routes index number. If you wish to view the preferred
route name, include the -name yes option in the command.
Once you have set up a preferred route, you can associate it with an SPVC or and SPVP. Each connection
can have only one preferred route. If a connection already has a preferred route associated with it, you
can replace that route with a new one.
Table 6-5 Parameters for addpref Command
Parameter Description
-name Name of the preferred route. To use node names, type -name yes. The
choice is yes or no. A no means that the persistent node index is used.
Default = no
For more information on the preferred route naming conventions, see the
section, “Detailed Usage Guidelines for the addpref Command” In the
“MGX 8850 and MGX 8950 Switch Command Reference.”
-h1, -h2 ...-h20 Specifies each hop in the preferred route. Including the local node, you
can define up to 20 nodes in the preferred route.
Each hop in the preferred route is defined by a pairing of the persistent
node index and the PNNI physical port ID. For the last port ID in the
route, type a “#” instead of a numeric value. This # appears in the outputs
of the display commands for preferred routes. Separate these values by a
slash and no spaces, as follows:
persNodeIndex/portid
The node must exist in the persistent topology database. Use the
dsptopondlist command to see the nodes in this database. (An alternate
to using node indexes is using node names.)
The format for portid is slot:subslot.port:subport.