Cisco ASA 5505 - Manual (Page 478)

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Cisco ASA 5500 Series Configuration Guide using the CLI
Chapter 24 Configuring OSPF
Monitoring OSPF
Monitoring OSPF
You can display specific statistics such as the contents of IP routing tables, caches, and databases. You
can also use the information provided to determine resource utilization and solve network problems. You
can also display information about node reachability and discover the routing path that your device
packets are taking through the network.
To monitor or display various OSPF routing statistics, enter one of the following commands:
Command Purpose
show ospf [process-id [area-id]] Displays general information about OSPF routing
processes.
show ospf border-routers Displays the internal OSPF routing table entries to
the ABR and ASBR.
show ospf [process-id [area-id]] database Displays lists of information related to the OSPF
database for a specific router.
show ospf flood-list if-name Displays a list of LSAs waiting to be flooded over
an interface (to observe OSPF packet pacing).
OSPF update packets are automatically paced so
they are not sent less than 33 milliseconds apart.
Without pacing, some update packets could get lost
in situations where the link is slow, a neighbor
could not receive the updates quickly enough, or
the router could run out of buffer space. For
example, without pacing, packets might be
dropped if either of the following topologies exist:
• A fast router is connected to a slower router
over a point-to-point link.
• During flooding, several neighbors send
updates to a single router at the same time.
Pacing is also used between resends to increase
efficiency and minimize lost retransmissions. You
also can display the LSAs waiting to be sent out of
an interface. Pacing enables OSPF update and
retransmission packets to be sent more efficiently.
There are no configuration tasks for this feature; it
occurs automatically.
show ospf interface [if_name] Displays OSPF-related interface information.
show ospf neighbor [interface-name]
[neighbor-id] [detail]
Displays OSPF neighbor information on a
per-interface basis.
show ospf request-list neighbor if_name Displays a list of all LSAs requested by a router.
show ospf retransmission-list neighbor
if_name
Displays a list of all LSAs waiting to be resent.