Cisco Cisco MGX 8220 Edge Concentrator Technical Manual
How to Configure Network−Wide Synchronization
in WAN Switching Networks
in WAN Switching Networks
Document ID: 4400
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Clocking Concepts
Network−Wide Clock Synchronization
Network Clock Sources for Cisco WAN Switches
Clock Selection in BPX/IPX/IGX Networks
Clock Selection in MGX Networks
Configuring IGX Clock Sources
Network Diagram
Configuration Tasks Performed
Step−by−step
Prerequisites
Requirements
Components Used
Conventions
Clocking Concepts
Network−Wide Clock Synchronization
Network Clock Sources for Cisco WAN Switches
Clock Selection in BPX/IPX/IGX Networks
Clock Selection in MGX Networks
Configuring IGX Clock Sources
Network Diagram
Configuration Tasks Performed
Step−by−step
Configuring BPX, MGX 8220, MGX 8250/8850 (PXM 1) Clock Sources
Tasks Performed
Step−by−Step
Configuring MGX 8850 (PXM45) Clock Sources
Tasks Performed
Step−by−Step
Clock Configuration and Verification Commands
BPX/IGX/IPX
MGX 8220
MGX 8250, MGX 8850 (PXM1)
MGX 8850 (PXM45)
Troubleshoot
BPX/IGX/IPX
MGX 8220
Related Information
Tasks Performed
Step−by−Step
Configuring MGX 8850 (PXM45) Clock Sources
Tasks Performed
Step−by−Step
Clock Configuration and Verification Commands
BPX/IGX/IPX
MGX 8220
MGX 8250, MGX 8850 (PXM1)
MGX 8850 (PXM45)
Troubleshoot
BPX/IGX/IPX
MGX 8220
Related Information
Introduction
This document describes network−wide clock synchronization concepts for Cisco WAN Switches. It focuses
on clock source selection criteria for a given node in a Cisco WAN Switching network. This document does
not describe design aspects or related implementation details.
on clock source selection criteria for a given node in a Cisco WAN Switching network. This document does
not describe design aspects or related implementation details.
The intended audience for this document is the user who needs an introduction to clock synchronization in
BPX, IPX/IGX and MGX networks or someone who wants an overview of network−wide clock
synchronization. A basic understanding of BPX, IPX, IGX and MGX functionality is assumed. For answers to
basic WAN Switching clock questions, refer to WAN Switching Network Synchronization Fundamentals.
BPX, IPX/IGX and MGX networks or someone who wants an overview of network−wide clock
synchronization. A basic understanding of BPX, IPX, IGX and MGX functionality is assumed. For answers to
basic WAN Switching clock questions, refer to WAN Switching Network Synchronization Fundamentals.