Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1073

For ex series ethernet switches
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Example: Configuring Link Aggregation Groups Using EX4200 Uplink Virtual Chassis
Ports
Requirements
Copyright © 2010, Juniper Networks, Inc.
Assigning the Virtual Chassis ID to Determine Precedence During an EX4200 Virtual
Chassis Merge (CLI Procedure) on page 1003
Configuring an EX4200 Virtual Chassis (CLI Procedure) on page 981
Configuring an EX4200 Virtual Chassis (J-Web Procedure) on page 985
You can form link aggregation groups (LAGs) between EX4200 Virtual Chassis member
switches in different wiring closets using uplink Virtual Chassis ports (VCPs) and, on
EX4200-24F switches, network VCPs. LAGs balance traffic across the member links,
increase the uplink bandwidth, and provide increased availability. To form LAGs using
uplink or network VCPs, you configure the uplink module interfaces or network interfaces
on the member switches as VCPs and connect the VCPs using fiber-optic cables. For the
LAGs to form, the uplink or network VCPs on each member switch that will form a LAG
must operate at the same link speed and you must interconnect at least two uplink or
network VCPs on each of those members. You can connect uplink or network VCPs
operating at different link speeds, but they will not form a LAG.
NOTE: The LAGs formed by VCPs are different from LAGs formed by Virtual
Chassis network interfaces. For more information on LAGs formed by network
interfaces, see "Understanding EX4200 Virtual Chassis Link Aggregation" on
page 902.
This example shows how to configure uplink module interfaces and network interfaces
as VCPs on multiple member switches of a Virtual Chassis configuration and then connect
them to form LAGs:
Requirements on page 969
Overview and Topology on page 970
Configuration on page 971
Verification on page 974
Troubleshooting on page 977
This example uses the following hardware and software components:
Junos OS Release 9.6 or later for EX Series switches
Five EX4200 switches, one of which is an EX4200-24F model
Two SFP uplink modules
Two XFP uplink modules
Chapter 38: EX4200 Virtual Chassis—Configuration Examples
969

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