Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
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[edit interfaces interface-name]
user@host# set (fastether-options | gigether-options) 802.3ad aex
You specify the interface instance number x to complete the link association; x can be
from 0 through 127, for a total of 128 aggregated interfaces on M Series and T Series
routers and can be from 1 through 480, for a total of 480 aggregated interfaces on MX
Series routers. You must also include a statement defining aex at the [edit interfaces]
hierarchy level. You can optionally specify other physical properties that apply specifically
to the aggregated Ethernet interfaces; for details, see “Ethernet Interfaces Overview” on
page 35, and for a sample configuration, see “Example: Configuring Aggregated Ethernet
Interfaces” on page 454.
NOTE: In general, aggregated Ethernet bundles support the features available
on all supported interfaces that can become a member link within the bundle.
As an exception, Gigabit Ethernet IQ features and some newer Gigabit
Ethernet features are not supported in aggregated Ethernet bundles.
Gigabit Ethernet IQ and SFP interfaces can be member links, but IQ- and
SFP-specific features are not supported on the aggregated Ethernet bundle
even if all the member links individually support those features.
You need to configure the correct link speed for the aggregated Ethernet
interface to eliminate any warning message.
NOTE: Before you commit an aggregated Ethernet configuration, ensure that
link mode is not configured on any member interface of the aggregated
Ethernet bundle; otherwise, the configuration commit check fails.
For information about E Series routers, see Understanding Aggregated Ethernet Interfaces
and LACP.
•
Configuring the Number of Aggregated Ethernet Interfaces on the Device on page 112
• Deleting an Aggregated Ethernet Interface on page 87
• Aggregated Ethernet Interfaces Overview on page 81
• Junos® OS Ethernet Interfaces
Configuring Junos OS for Supporting Aggregated Devices
84
Junos OS supports the aggregation of physical devices into defined virtual links, such as
the link aggregation of Ethernet interfaces defined by the IEEE 802.3ad standard.
Tasks for configuring aggregated devices are:
• Configuring Virtual Links for Aggregated Devices on page 85
• Configuring LACP Link Protection at the Chassis Level on page 85
Copyright © 2012, Juniper Networks, Inc.