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multihop

Syntax



multihop {

ttl-value;
no-nexthop-change;
}

Hierarchy Level



[edit logical-systems logical-system-name protocols bgp],
[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],
[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],
[edit protocols bgp group group-name],
[edit protocols bgp group group-name neighbor address],
[edit routing-instances routing-instance-name protocols bgp],
[edit routing-instances routing-instance-name protocols bgp group group-name],
[edit routing-instances routing-instance-name protocols bgp group group-name neighbor address]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

Configure an EBGP multihop session.

External confederation peering is a special case that allows unconnected third-party next hops. You do not need to configure multihop sessions explicitly in this particular case; multihop behavior is implied.

If you have confederation external BGP peer-to-loopback addresses, you still need the multihop configuration.

Default

If you omit this statement, all EBGP peers are assumed to be directly connected (that is, you are establishing a nonmultihop, or "regular," BGP session), and the default time-to-live (TTL) value is 1.

Options

ttl-value—Configure the maximum TTL value for the TTL in the IP header of BGP packets.
no-nexthop-change—Specify not to change the BGP next-hop value; for route advertisements, specify the no-nexthop-self option.

Usage Guidelines

See Configuring an EBGP Multihop Session.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

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