Cisco Cisco ASR 5000
BFD Configuration Mode Commands
bfd linkagg-peer ▀
Command Line Interface Reference, StarOS Release 18 ▄
1619
multiplier
multiplier_value
Specifies the value used to compute hold-down time as an integer from 3 through 50.
[ slot
slot_number
For a redundant active-standbylinkagg configuration, this option specifies the card for which this
configuration is intended.
configuration is intended.
Usage
Use this command to enables member-link based BFD and configures the BFD link aggregation session
values (RFC 7130). Member-link based BFD detects individual link failures faster than LACP and reduces
the overall session traffic down period as a result of single member link failure.
This command configures BFD interactions with the linkagg task. Once a session is configured, BFD creates
per member link BFD sessions and starts sending packets on each of the linkagg member links. If a member
link BFD session fails, StarOS notifies failures to the linkagg task.
If you define a linkagg-peer using a slot number, you may configure a linkagg-peer for the redundant slot
which must also specify a slot. Likewise, if you configure a linkagg-peer without a slot, you must delete it
before configuring a peer with a slot specified.
values (RFC 7130). Member-link based BFD detects individual link failures faster than LACP and reduces
the overall session traffic down period as a result of single member link failure.
This command configures BFD interactions with the linkagg task. Once a session is configured, BFD creates
per member link BFD sessions and starts sending packets on each of the linkagg member links. If a member
link BFD session fails, StarOS notifies failures to the linkagg task.
If you define a linkagg-peer using a slot number, you may configure a linkagg-peer for the redundant slot
which must also specify a slot. Likewise, if you configure a linkagg-peer without a slot, you must delete it
before configuring a peer with a slot specified.
Important:
Only one IPv4 or IPv6 BFD session-based configuration is allowed per link-agg interface for
compliance with RFC 7130.
Example
The following command configures linkage group 50 with IPv4 endpoints, a 50ms transmission interval, a
50ms interval for receiving control packets, and a compute hold-down time mupltiplier of 3.
50ms interval for receiving control packets, and a compute hold-down time mupltiplier of 3.
bfd linkagg-peer 50 local-endpt-addr 2.2.2.1 remote-endpt-addr 2.2.2.2
interval 50 min_rx 50 multiplier 3
interval 50 min_rx 50 multiplier 3