Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1044

Complete Software Guide for Junos
Troubleshooting
Problem
Solution
Related
Documentation
Example: Configuring Aggregated Ethernet High-Speed Uplinks Between an EX4200
Virtual Chassis Access Switch and an EX4200 Virtual Chassis Distribution Switch
940
®
OS for EX Series Ethernet Switches, Release 10.4
port number. The number is the same as the member ID. The
fpc
number ID assigned to the LAG formed by the Virtual Chassis. If no LAG is formed, the
value is .
–1
To troubleshoot a Virtual Chassis configuration that is interconnected across wiring
closets, perform these tasks:
Troubleshooting Nonoperational VCPs
An uplink VCP shows a status of
Check the cable to make sure that it is properly and securely connected to the ports.
If the VCP is an uplink module port, make sure that it has been explicitly set as an uplink
VCP.
If the VCP is an uplink module port, make sure that you have specified the options
( , , and
pic-slot port member
Example: Configuring an EX4200 Virtual Chassis with a Master and Backup in a Single
Wiring Closet on page 917
Example: Expanding an EX4200 Virtual Chassis in a Single Wiring Closet on page 922
Example: Setting Up a Multimember EX4200 Virtual Chassis Access Switch with a
Default Configuration on page 927
Setting an EX4200 Switch Uplink Module Port as a Virtual Chassis Port (CLI Procedure)
on page 994
EX Series switches allow you to combine multiple Ethernet links into one logical interface
for higher bandwidth and redundancy. The ports that are combined in this manner are
referred to as a link aggregation group (LAG) or bundle. The number of Ethernet links
you can combine into a LAG depends on your EX Series switch model. See "Understanding
Aggregated Ethernet Interfaces and LACP" on page 1244 for more information.
This example describes how to configure uplink LAGs to connect a Virtual Chassis access
switch to a Virtual Chassis distribution switch:
Requirements on page 941
Overview and Topology on page 941
Configuration on page 943
Verification on page 945
Troubleshooting on page 946
.
down
) correctly.
Copyright © 2010, Juniper Networks, Inc.
is a positive
Trunk ID