Reference Guide

Items Description
“Transit area...” This line identifies the area through which the virtual link
was created, the interface used, and the cost assigned to
that link.
“Transmit Delay...” This line displays the transmit delay assigned to the link and
the State of the OSPF neighbor.
“Timer intervals...” This line displays the timer values assigned to the virtual link.
The timers are Hello is hello-interval, Dead is dead-interval,
Wait is transmit-delay, and Retransmit is retransmit-interval.
“Hello due...” This line displays the amount of time until the next Hello
packet is expected from the neighbor router.
“Adjacency
State...”
This line displays the adjacency state between neighbors.
Example
Dell# show ip ospf 1 virt
Virtual Link to router 192.168.253.5 is up
Run as demand circuit
Transit area 0.0.0.1, via interface GigabitEthernet 13/16,
Cost of using 2
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40,
Retransmit 5
Hello due in 00:00:02
Dell#
summary-address
To advertise one external route, set the OSPF ASBR.
Syntax
summary-address ip-address mask [not-advertise] [tag tag-value]
To disable summary address, use the no summary-address ip-address mask
command.
Parameters
ip-address Specify the IP address in dotted decimal format of the
address to summarize.
mask Specify the mask in dotted decimal format of the address to
summarize.
not-advertise (OPTIONAL) Enter the keywords not-advertise to
suppress that match the network prefix/mask pair.
Open Shortest Path First (OSPFv2 and OSPFv3)
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