Specifications

9-34
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 9 Switch Operating Procedures
Managing NCDP Clock Sources
Configuring an NCDP Port
Once you enable NCDP on your node, NCDP is automatically enabled on all the node’s NNI ports. You
can alter the default NCDP port configuration through the cnfncdpport <portid> <options> command,
as shown in the following example:
M8850_LA.8.PXM.a > cnfncdpport 1:2.2:2 -ncdp enable -vpi 0 -vci 32 -admincost 1 -pcr 200
-scr 100 -mbs 50
Table 9-15 describes the cnfncdpport command options.
Table 9-15 cnfncdpport Command Parameters
Parameter Description
portid Port identifier in the format slot:bay.line:ifnum. These parameters are
described in Table 9-1.
-ncdp Enter -ncdp enable to enable NCDP on the current port. To disable NCDP on
the port, enter -ncdp disable.
Default = enable on NNI trunks and disable on virtual trunks
-vpi Reserved VPI of the signaling channel, in the range from 0 through 4095.
There is no reason to change this number unless a relevant card’s partition is
intended to support a specific VPI.
Note If you change the VPI, it must be within the valid partition range or it
will be disabled.
Note You must disable NCDP before you modify the VPI of the signaling
channel.
Default = 0 for NNI trunks; and the minimum VPI in the configured range for
virtual trunks.
-vci Reserved VCI of the signaling channel, in the range from 32 through 65535.
Normally, no reason exists to change it.
Note If you change the VCI, it must be within the valid partition range or it
will be disabled.
Note You must disable NCDP before you modify the VCI of the signaling
channel.
Default = 34 for NNI trunks and virtual trunks.
-admincost Sets the routing cost of the port, in the range from 1 through (2^24-1).
For example, if the equipment is in an area with a large amount of electronic
noise, or if the switch carries a particularly large amount of traffic, you might
want to raise the cost.)
Default = 10
-pcr Specifies the PCR
1
for the port. Default = 250 cells per second