Specifications

Contents
xiv
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
BXM SVC Resource Partitioning 24-13
CHAPTER 25 Configuring BXM Virtual Trunks 25-1
Overview 25-1
Typical ATM Hybrid Network with Virtual Trunks 25-2
Benefits of Virtual Trunking 25-3
Card Capacities 25-4
Trunk Redundancy 25-4
How Virtual Trunking Works 25-5
Virtual Trunks Across a Public ATM Cloud 25-6
Routing with Virtual Trunks 25-7
Connection Management 25-8
Cell Header Formats 25-8
Bit Shifting for Virtual Trunks 25-9
Virtual Trunk Bandwidth 25-9
Virtual Trunk Connection Channels 25-9
Cell Transmit Address Translation 25-10
Cell Receive Address Lookup 25-10
Selection of Connection Identifier 25-10
Routing VPCs over Virtual Trunks 25-10
VPC Configuration with the ATM Cloud 25-10
Virtual Trunk Interfaces 25-11
Virtual Trunk Traffic Classes 25-11
Virtual Trunk Transmit Queuing 25-12
General Procedure to Set Up a Trunk 25-12
Setting up a BNI Virtual Trunk through an ATM Cloud 25-13
Setting up a BXM or UXM Virtual Trunk through an ATM Cloud 25-15
Example: Virtual Trunk Across an ATM Network 25-16
Adding Virtual Trunks Using BNI Cards 25-18
Command Overview 25-20
Primary Configuration Commands 25-20
Configuration using cnftrk 25-20
Configuration with cnfrsrc 25-20
Configuration with cnftrkparm 25-21
APS Redundancy 25-21
Virtual Trunk Commands 25-21