Partitioning Port Resources Between Controllers - Cisco MGX 8850 (PXM1E/PXM45) Configuration Manual

General PXM1E Configuration Procedures
Step 3 To prepare for the configuration change, enter the dnport command to bring down the port as shown in
the following example:
M8830_CH.2.PXM.a > dnport 1
Traffic loss will result on all connections on this port.
Do you want to proceed (Yes/No) ? y
To change an ATM port configuration, enter the following command:
Step 4
mgx8830a.1.PXM.a > cnfport <ifNum> <-min guaranteedRate> <-max maxRate> <-sct sctID>
<ifType> [vpi <vpi>] [-minvpi <minvpi>] [-maxvpi <maxvpi>]
Table 3-9
changes the SCT for the port to SCT 6:
M8830_CH.2.PXM.a > cnfport 1 -sct 6
Step 5 To return the port to service, enter the upport command as shown in the following example:
M8830_CH.2.PXM.a > upport 1
To verify port configuration changes, use the dspports and dspport commands.
Step 6

Partitioning Port Resources Between Controllers

After you add a line or trunk port, you need to define how the port resources are used by the PNNI
controller. You can assign the following resources to controllers:
•
•
•
•
Note You can and should use the partition definition to control how available connections are distributed
within the switch. Each switch, card, and port supports a maximum number of connections. Although
you can enable the maximum number of connections on all ports, two or three very busy ports could use
all available connections and disable communications on all other ports.
The port resources are defined as a group in a controller partition, which is dedicated to a single port
controller. You must define one controller partition for each controller type you want to support, and you
must configure one resource partition for each port that uses a controller.
Figure 3-5
and resource partitions on MGX switches with PXM1E controllers. Because a PXM1E controller
supports ATM connections on Cisco MGX 8850 (PXM1E) and Cisco MGX 8830 switches, you can
configure resource partitions directly on the PXM1E card.
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
3-48
lists the parameter descriptions for adding and modifying ports. The following example
Range of VPI values
Range of VCI values
Guaranteed percent of bandwidth for ingress and egress directions
Minimum and maximum number of connections
presents a simplified view of the relationship between the port controller, controller partition,
Chapter 3 Provisioning PXM1E Communication Links
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004