Figure 44: Simple Load Balancing Scenario
g040 87 5
R3
R2
AS 6 4 501
10.0 .2.2
10.0 .2.1
R1
AS 6 4 500
10.0 .1.2
10.0 .1.1
10.0.0 .2
10.0.0 .1
Starting in Junos OS 13.3R3, for MX Series 3D Universal Edge routers with modular port
concentrators (MPCs) only, you can configure consistent load balancing, which prevents
the reordering of all flows to active paths in an equal-cost multipath (ECMP) group when
one or more next-hop paths fail. Only flows for paths that are inactive are redirected to
another active next-hop path. Flows mapped to servers that remain active are maintained.
This feature applies only to external BGP peers.
Related
Documentation
Example: Load Balancing BGP Traffic•
• Configuring Per-Packet Load Balancing on page 790
• Configuring Load Balancing Based on MPLS Labels
• Configuring Load Balancing for Ethernet Pseudowires on page 797
• Configuring Load Balancing Based on MAC Addresses on page 798
• Configuring VPLS Load Balancing Based on IP and MPLS Information
• Configuring VPLS Load Balancing on MX Series 3D Universal Edge Routers
• Configuring Consistent Load Balancing for ECMP Groups
Configuring Per-Packet Load Balancing
To configure per-packet load balancing as described in “Understanding Per-Packet Load
Balancing” on page 789, include the load-balance per-packet statement either as an option
of the route-filter statement at the [edit policy-options policy-statement policy-name term
term-name from] hierarchy level:
[edit policy-options policy-statement policy-name term term-name from]
route-filter destination-prefix match-type {
load-balance per-packet;
}
Copyright © 2017, Juniper Networks, Inc.790
ACX Series Universal Access Router Configuration Guide
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