Alcatel-Lucent 7750 SR Manual page 1345

backup
Syntax [no] backup ip-address
Context config>service>vprn>if>vrrp
config>service>vprn>if>ipv6>vrrp
Description
This command configures virtual router IP addresses for the interface.
bfd-enable
Syntax [no] bfd-enable [base | service-id] interface interface-name dst-ip ip-address
Context config>service>vprn>if>vrrp
config>service>vprn>sub-if>grp-if>vrrp
Description
This commands assigns a bi-directional forwarding (BFD) session providing heart-beat mechanism
for the given VRRP/SRRP instance. There can be only one BFD session assigned to any given
VRRP/SRRP instance, but there can be multiple SRRP/VRRP sessions using the same BFD session.
BFD control the state of the associated interface. By enabling BFD on a given protocol interface, the
state of the protocol interface is tied to the state of the BFD session between the local node and the
remote node. The parameters used for the BFD are set via the BFD command under the IP interface.
The specified interface may not be configured with BFD; when it is, the virtual router will then
initiate the BFD session.
The no form of this command removes BFD from the configuration.
Default
none
Parameters
service-id — Specifies the service ID of the interface running BFD.
interface interface-name — Specifies the name of the interface running BFD.
dst-ip ip-address — Specifies the destination address to be used for the BFD session.
7750 SR OS Services Guide
– If no entry is available, delete the oldest and create an entry.
The new entry should have a counter value of zero.
2. Compare the message counter value to the entry value (0 if new entry or equal to the previous
message counter from the source IP address).
– If the message counter is not greater than the entry counter value, silently discard the
packet.
– If the message counter is greater than the entry counter value, accept the message for
further checking and replace the entry counter value with the message counter value and
time stamp the entry.
Values
service-id: 1 — 2147483648
svc-name: Specifies an existing service name up to 64 characters in length.
No service ID indicates a network interface.
Virtual Private Routed Network Services
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