Configuration With Cnftrkparm; Aps Redundancy; Virtual Trunk Commands; Table 25-8 Maximum Connection Ids (Lcns) - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Chapter 25 Configuring BXM Virtual Trunks
This number cannot be greater than the total number of connection channels on the card. The maximum
number of channels is additionally limited by the number of VCI bits in the UNI cell header.
For a virtual trunk, the number is divided by the maximum number of virtual trunks on the port to
determine the default. You configure this value by using the cnfsrc command on the BPX.
Table 25-8 lists the number of connection ids for virtual trunks on various cards.

Table 25-8 Maximum Connection IDs (LCNs)

Port Type
BXM/UXM
BNI T3/E3
BNI OC-3

Configuration with cnftrkparm

cnftrkparm
BXM and UXM virtual trunks have all the configuration parameters for queues as physical trunks.
The integrated alarm thresholds for major alarms and the gateway efficiency factor is the same for all
virtual trunks on the port.
Note that BNI VTS are supported by a single queue and do not support configuration of all the
OptiClass queues on a single virtual trunk.
When a physical port attribute change is made, you are notified that all trunks on the port are affected.

APS Redundancy

Virtual trunks support APS redundancy on BXM OC-3 and OC-12 ports. For more information, refer
to the section on APS Redundancy in this manual. You configure this by using primarily these
commands:
•
•
•
•
The prior Y-redundancy is not supported by virtual trunks, nor the related commands, addtrkred,
deltrkred, and dsptrkred.

Virtual Trunk Commands

Because a virtual trunk is defined within a trunk port, its physical characteristics are derived form the
port. All the virtual trunks within a port have the same port attributes.
If a physical trunk is specified on a physical port that supports multiple virtual trunks, the command is
applied to all virtual trunks on the physical port.
If a virtual trunk is specified for a command that configures information related to the physical
port, then the physical port information is configured for all virtual trunks.
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Maximum Conids
1–(number of channels on the card)
1–1771
1–15867 (3837 max/vtrk
addapsln
delapsln
switchapsln
cnfapsln
Default
256
256
256
Cisco BPX 8600 Series Installation and Configuration
Command Overview
25-21