Neighbor Bfd-Liveness-Detection - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - COMMAND REFERENCE N TO Z 2010-10-19 Command Reference Manual

neighbor bfd-liveness-detection

Syntax
Release Information
Description
Options
Copyright © 2010, Juniper Networks, Inc.
neighbor { ipAddress | ipv6Address | peerGroupName } bfd-liveness-detection
[ minimum-interval minInterval |
[ minimum-receive-interval minRecInterval ]
[ minimum-transmit-interval minTransInterval ] ] [ multiplier multiplierValue ]
{ no | default } neighbor { ipAddress | ipv6Address | peerGroupName }
bfd-liveness-detection
Command introduced in JunosE Release 7.2.0.
ipv6Address variable added in JunosE Release 8.0.0.
Enables BGP to determine quickly whether a BGP neighbor is unreachable by means of
a BFD protocol session to the neighbor address or to each member of the specified peer
group. The no version disables BFD liveness detection for the neighbor or peer-group
members. The default version removes the explicit configuration from the peer or peer
group and reestablishes inheritance of the feature configuration.
NOTE: BFD sessions might not be maintained when the multiplier value is 1
and configured intervals are very short. We recommend that you do not use
a multiplier value of 1 with very short intervals.
ipAddress—IP address of BGP neighbor
ipv6Address—IPv6 address of BGP neighbor
peerGroupName—Name of a BGP peer group. If you specify a BGP peer group by using
the peerGroupName argument, all the members of the peer group inherit the
characteristic configured with this command, unless it is overridden for a specific peer.
minInterval—Minimum proposed transmit interval and required receive interval for BFD
control packets; has the same effect as configuring the minimum receive interval and
the minimum transmit interval to the same value; number in the range 100–65535
milliseconds—for ES2 4G LM only, the range is 10–65535 milliseconds; default value
is 300 milliseconds
minRecInterval—Minimum interval at which the local peer must receive BFD control
packets sent by the remote peer; number in the range 100–65535 milliseconds—for
ES2 4G LM only, the range is 10–65535 milliseconds; default value is 300 milliseconds
minTransInterval—Minimum interval at which the local peer proposes to transmit BFD
control packets to the remote peer; number in the range 100–65535 milliseconds—for
ES2 4G LM only, the range is 10–65535 milliseconds; default value is 300 milliseconds
multiplierValue—Detection multiplier value that the remote peer router multiplies by
the local peer's negotiated transmit interval to determine the remote peer's BFD liveness
detection interval; equal to the number of BFD packets that can be missed before the
BFD session is declared down; number in the range 1–255; default value is 3
Chapter 2: N Commands
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