Multipath - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

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multipath

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Copyright © 2010, Juniper Networks, Inc.
Configuring EBGP Multihop Sessions
multipath {
multiple-as;
}
[edit logical-systems logical-system-name protocols bgp group group-name],
[edit logical-systems logical-system-name protocols bgp group group-name
neighbor address],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols
bgp group group-name],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols
bgp group group-name neighbor address],
[edit protocols bgp group group-name],
[edit protocols bgp group group-name neighbor address],
[edit routing-instances routing-instance-name protocols bgp group group-name],
[edit routing-instances routing-instance-name protocols bgp group group-name
neighbor address]
Statement introduced before Junos OS Release 7.4.
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Allow load sharing among multiple EBGP paths and multiple IBGP paths. A path is
considered a BGP equal-cost path (and will be used for forwarding) if a tie-break is
performed. The tie-break is performed after the BGP route path selection step that
chooses the next-hop path that is resolved through the IGP route with the lowest metric.
All paths with the same neighboring AS, learned by a multipath-enabled BGP neighbor,
are considered.
—Disable the default check requiring that paths accepted by BGP multipath
multiple-as
must have the same neighboring AS.
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
How the Active Route Is Determined
Selecting Multiple Equal-Cost Active Paths
Chapter 79: Configuration Statements for Layer 3 Protocols
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