Use the ospf_monitor command to query OSPF routers. The
ospf_monitor command operates in interactive mode. It allows the
user to query the various OSPF routers to provide detailed information
on IO statistics, error logs, link-state data bases, AS external data
bases, the OSPF routing table, configured OSPF interfaces, and OSPF
neighbors.
Mon_db_file is the complete pathname of a database composed of
records configuring destinations for ospf_monitor remote
commands. Each destination record is a single-line entry which lists
the destination IP address, the destination hostname, and an OSPF
authentication key (if authentication is activated by the
destination). Since authentication keys may be present in the
destination records, it is recommended that general access to this
database be restricted.
Refer to [RFC 1583] (OSPF Specification, version 2) for details about OSPF
database and packet formats.
Upon entering interactive mode, ospf_monitor presents the
'[ # ] dest command params >' prompt, at which you can enter any of
ospf_monitor's interactive commands. Interactive commands can
be interrupted at any time via a keyboard interrupt. Note that the
command line length must be less than 200 characters.
Display all configured destinations. This command displays
dest_index , the IP address, and the hostname of all
potential ospf_monitor command destinations
configured in mon_db_file.
h
Display the command history buffer showing the last 30
interactive commands.
x
Exit the ospf_monitor program.
@ remote_command
Send remote_command to the same (previous) destination.
@ dest_index remote_command
Send remote_command to configured destination
dest_index.
Display link state advertisement. Area_id is the OSPF
area for which the query is directed. adv_rtr is
the router-id of the router which originated this link state
advertisement. Type specifies the type of
advertisement to request and should be specified as follows:
1
Request the router links advertisements. They describe the
collected states of the router's interfaces. For this type
of request, the ls_id field should be set to the
originating router's Router ID.
2
Request the network links advertisements. They describe the
set of routers attached to the network. For this type of
request, the ls_id field should be set to the IP
interface address of the network's Designated Router.
3
Request the summary link advertisements describing routes to
networks. They describe inter-area routes, and enable the
condensing of routing information at area borders. For
this type of request, the ls_id field should be set
to the destination network's IP address.
4
Request the summary link advertisements describing routes to
AS boundary routers. They describe inter-area routes, and
enable the condensing of routing information at area
borders. For this type of request, the ls_id field
should be set to the Router ID of the described AS boundary
router.
5
Request the AS external link advertisements. They describe
routes to destinations external to the Autonomous
System. For this type of request, the ls_id field
should be set to the destination network's IP address.
c
Display cumulative log. This log includes input/output statistics
for monitor request, hello, data base description, link-state
request, link-state update, and link-state ack packets. Area
statistics are provided which describe the total number of
routing neighbors and number of active OSPF interfaces. Routing
table statistics are summarized and reported as the number of
intra-area routes, inter-area routes, and AS external data base
entries.
e
Display cumulative errors. This log reports the various error
conditions which can occur between OSPF routing neighbors and
shows the number of occurrences for each.
h
Displays the next hop list. This is a list of valid next hops
mostly derived from the SPF calculation.
l [ retrans ]
Display the link-state database (except for ASE's). This table
describes the routers and networks making up the AS. If
retrans is non-zero, the retransmit list of neighbors
held by this lsdb structure will be printed.
A [ retrans ]
Display the AS external data base entries. This table reports the
advertising router, forwarding address, age, length, sequence
number, type, and metric for each AS external route. If
retrans is non-zero, the retransmit list of neighbors
held by this lsdb structure will be printed.
o [ which ]
Display the OSPF routing table. This table reports the AS border
routes, area border routes, summary AS border routes,
networks, summary networks and AS external networks currently
managed via OSPF. If which is omitted, all of the above
will be listed. If specified, the value of
which (between 1 and 63) specifies that only certain
tables should be displayed. The appropriate value is determined
by adding up the values for the desired tables from the following
list:
1
Routes to AS border routers in this area.
2
Routes to area border routers for this area.
4
Summary routes to AS border routers in other areas.
8
Routes to networks in this area.
16
Summary routes to networks in other areas.
32
AS routes to non-OSPF networks.
I
Display all interfaces. This report shows all interfaces
configured for OSPF. Information reported includes the area,
interface IP address, interface type, interface state, cost,
priority, and the IP address of the DR and BDR for the network.
N
Display all OSPF routing neighbors. Information reported includes
the area, local interface address, router ID, neighbor IP
address, state, and mode.
