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Cisco MGX 8850 Routing Switch Command Reference
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Chapter5 PNNI Commands cnfpnni-intf
cnfpnni-intf
Configure PNNI Interface—specify administrative weight or logical link aggregation for a port.
The cnfpnni-intf command lets you spec if y two distinct PNNI para meters. The aggregation token
applies to a logical node, and th e administrative weight (AW) applies to a port.
Note Aggregation tokens do not apply in a single-peer group.

Aggregation Tokens

An aggregation token is a marker that indicates which up-links (links going out of the peer group) can
be bundled or aggregated at the next logical level. For example, if four links a, b, c, and d connect to
peer groups X and Y, no aggregation exist s for t he li nk s b y d efa ult. T he LGNs o f the se peer gro ups co uld
have hypothetical names x02 and y02. They would be connected by a single logical link. You co uld use
the cnfpnni-intf command to configure aggregatio n to kens .
If you configure the aggregation token of link c as 1, then x02 and y02 would have two logical links.
One link would correspond to aggregation token 0, and the other link would correspond to aggregation
token 1. In summary:
An aggregation token is the number of links between a peer group leader and the lowest level of a
PNNI hierarchy. The range for tokens is 1–32.

Administrative Weight

The administrative weight (AW) is a number that ser ve s as a co st- b ased determinant of a route. Each
port in a PNNI network has a default A W for the egress direction. Whether it uses the de fault AW or an
AW you specify, PNNI adds all the AWs in a prospective route then determines whether the ro ute is too
expensive. For an SPVC, you can specify the maximum cost with the addcon or cnfcon command.
You can specify that all classes of service on the port have the same AW, or you can specify an AW for
each service class on the port. If you specify the same AW for all, it overrides the default AW or the
AW you might specify for individual services types.
The AW for a path is the sum, in both directions, of the individual weight of each link on the path. See
“Usage Guidelines” section o n pa ge 23 for details about AW.
Cards on Which This Command Runs
PXM45

Syntax

cnfpnni-intf <portid>
[-aggregationToken token]
[-awcbr aw]
[-awrtvbr aw]
[-awnrtvbr aw]
[-awabr aw]
[-awubr aw]
[-awall aw]