Juniper JUNOS OS 10.3 - SOFTWARE, Manual

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Action
show interfaces ae1 terse
Interface Admin Link Proto Local Remote
ae1 up down
ae1.0 up down inet
Meaning The output shows that the
ae1
link is down.
Troubleshooting
Troubleshooting a LAG That Is Down
Problem The show interfaces terse command shows that the LAG is down:
Solution Check the following:
•
Verify that there is no configuration mismatch.
•
Verify that all member ports are up.
•
Verify that a LAG is part of family ethernet switching (Layer 2 LAG) or family inet (Layer
3 LAG).
•
Verify that the LAG member is connected to the correct LAG at the other end.
•
Verify that the LAG members belong to the same switch (or the same Virtual Chassis).
Related
Documentation
Example: Configuring a Virtual Chassis with a Master and Backup in a Single Wiring
Closet on page 947
•
•
Example: Configuring Aggregated Ethernet High-Speed Uplinks with LACP Between
a Virtual Chassis Access Switch and a Virtual Chassis Distribution Switch on page 977
•
Example: Connecting an Access Switch to a Distribution Switch on page 1320.
•
Virtual Chassis Cabling Configuration Examples for EX4200 Switches
•
Installing an Uplink Module in an EX3200 or EX4200 Switch
Example: Configuring Aggregated Ethernet High-Speed Uplinks with LACP Between
a Virtual Chassis Access Switch and a Virtual Chassis Distribution Switch
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. EX Series
switches allow you to further enhance these links by configuring Link Aggregation Control
Protocol (LACP).
1121 Copyright © 2010, Juniper Networks, Inc.
Chapter 51: Examples: Interfaces Configuration