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OUTING
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OMMANDS
-161
• retransmit-interval seconds - Specifies the interval at which the ABR
retransmits link-state advertisements (LSA) over the virtual link. The
retransmit interval should be set to a conservative value that
provides an adequate flow of routing information, but does not
produce unnecessary protocol traffic. However, note that this value
should be larger for virtual links. (Range: 1-3600 seconds; Default: 5
seconds)
• transmit-delay seconds - Estimates the time required to send a
link-state update packet over the virtual link, considering the
transmission and propagation delays. LSAs have their age
incremented by this amount before transmission. This value must be
the same for all routers attached to an autonomous system.
(Range: 1-3600 seconds; Default: 1 seconds)
• dead-interval seconds - Specifies the time that neighbor routers will
wait for a hello packet before they declare the router down. This
value must be the same for all routers attached to an autonomous
system. (Range: 1-65535 seconds; Default: 4 x hello interval, or 40
seconds)
• authentication-key key - Sets a plain text password (up to 8
characters) that is used by neighboring routers on a virtual link to
generate or verify the authentication field in protocol message
headers. A separate password can be assigned to each network
interface. However, this key must be the same for all neighboring
routers on the same network (i.e., autonomous system). This key is
only used when authentication is enabled for the backbone.
• message-digest-key key-id md5 key - Sets the key identifier and
password to be used to authenticate protocol messages passed
between neighboring routers and this router when using message
digest (MD5) authentication. The key-id is an integer from 1-255, and
the key is an alphanumeric string up to 16 characters long. If MD5
authentication is used on a virtual link, then it must be enabled on all
routers within an autonomous system; and the key identifier and key
must also be the same for all routers.
Command Mode
Router Configuration