Juniper JUNOS OS 10.3 - SOFTWARE Manual page 1066

Complete Software Guide for Junos
Meaning
Troubleshooting
Problem
Solution
Related
Documentation
Example: Configuring Aggregated Ethernet High-Speed Uplinks Between a Virtual
Chassis Access Switch and a Virtual Chassis Distribution Switch
970
®
OS for EX Series Ethernet Switches, Release 10.3
vcp-1 Dedicated
1/0 Auto-Configured
The dedicated VCPs are displayed as
has been set as an uplink VCP is displayed as
VCPs are of the form vcp-255/pic/port
indicates that the interface is an uplink VCP,
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
A 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
( pic-slot , port , and member
Example: Configuring a Virtual Chassis with a Master and Backup in a Single Wiring
Closet on page 947
Example: Expanding a Virtual Chassis Configuration in a Single Wiring Closet on page 952
Example: Setting Up a Multimember Virtual Chassis Access Switch with a Default
Configuration on page 957
Setting an Uplink Module Port as a Virtual Chassis Port (CLI Procedure) on page 1023
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 1099 for more information.
2 Up 32000
—1 Up 1000
and . The interface on the switch that
vcp-0 vcp-1
. The member interface names of uplink
1/0
—for example, vcp-255/1/0
is the uplink PIC number, and
1
.
down
) correctly.
Copyright © 2010, Juniper Networks, Inc.
2 vcp-1
1 vcp-255/1/0
. In that name, vcp-255
is the uplink
0
is a positive
Trunk ID