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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 8 Managing PNNI Nodes and PNNI Routing
Managing PNNI Routes
Replace pnportid with the port ID in the format slot[:subslot].port[:subport]. (This is the same format
that appears when you display ports with the dsppnport command.) Replace token with the value you
want to assign to the link. The range is 0 to 4294967295, and the default value is 0. The token value of
0 disables link aggregation for the link. Therefore, to enable two or more links to be advertised as one,
you must configure the aggregation token on each link to a matching, nonzero value.
The following command assigns token value 5 to a link:
M8850_LA.8.PXM.a >
cnfpnni-intf
12:1.1:1 -aggregationToken 5
To display the AWs assigned to a PNNI port, enter the dsppnni-intf command as follows:
M8850_LA.8.PXM.a >
dsppnni-intf
12:1.1:1
Physical port id: 12:1.1:1 Logical port id: 17569793
Aggr token.......... 5 AW-NRTVBR........... 5040
AW-CBR.............. 5040 AW-ABR.............. 5040
AW-RTVBR............ 5040 AW-UBR.............. 5040
Configuring the Bandwidth Overbooking Factor
The bandwidth overbooking factor represents the percentage of the actual available bandwidth that is
advertised for links as the Available Cell Rate (AvCR). The default overbooking factor is 100, and this
specifies that 100% of the actual available bandwidth should be advertised as the AvCR. When the
overbooking factor is set below 100, a link is oversubscribed because the bandwidth booked for each
connection exceeds the configured bandwidth for the connection. When the overbooking factor is set
above 100, the link is under subscribed because the bandwidth booked for a connection exceeds the
connection's configured bandwidth
.
Note
For more information on the bandwidth overbooking factor, refer to the Cisco PNNI Network Planning
Guide for MGX and SES Products.
To configure the bandwidth overbooking factor for a PNNI port, enter the cnfpnportcac command as
follows:
mgx8830a.1.PXM.a >
cnfpnportcac
<
pnportid
> <
service_catogory
>
[-bookfactor <
utilization-factor
>]
Replace pnportid with the port ID in the format slot[:subslot].port[:subport]. (This is the same format
that appears when you display ports with the dsppnport command.) Replace service_catogory with the
ATM class of service for which you are defining the overbooking factor, and replace utilization-factor
with the new overbooking factor. For example:
mgx8830a.1.PXM.a >
cnfpnportcac
1:2.1:1 cbr -bookfactor 120
WARNING: New CAC parameters apply to existing connections also
To display the bandwidth overbooking factor for all classes of service, enter the dsppnportcac command
as shown in the following example:
mgx8830a.1.PXM.a >
dsppnportcac
1:2.1:1
cbr: rt-vbr: nrt-vbr: ubr: abr: sig:
bookFactor: 120% 100% 100% 100% 100% 100%
maxBw: 100.0000% 100.0000% 100.0000% 100.0000% 100.0000% 100.0000%
minBw: 0.0000% 0.0000% 0.0000% 0.0000% 0.0000% 0.3473%
maxVc: 100% 100% 100% 100% 100% 100%
minVc: 0% 0% 0% 0% 0% 1%
maxVcBw: 0 0 0 0 0 0