Chapter 29
| IP Routing Commands
Open Shortest Path First (OSPFv3)
– 901 –
Example
Console#show ipv6 ospf
Routing Process "ospf 1" with ID 192.168.0.2
Process uptime is 24 minutes
Supports only single TOS(TOS0) routes
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
Number of incoming concurrent DD exchange neighbors 0/5
Number of outgoing concurrent DD exchange neighbors 0/5
Number of external LSA 0. Checksum 0x000000
Number of opaque AS LSA 0. Checksum 0x000000
Number of LSA received 0
Number of areas attached to this router: 2
Area 0.0.0.0 (BACKBONE)
SPF algorithm executed 2 times
Number of LSA 1. Checksum 0x001aa9
Area 0.0.0.1
SPF algorithm executed 2 times
Number of LSA 1. Checksum 0x001aa9
Console#
Table 180: show ip ospf - display description
Field Description
Routing Process
Routing Process OSPF process name and router ID. The router ID uniquely identifies the router in
the autonomous system. By convention, this is normally set to one of the router's
IP interface addresses.
Process uptime The time this process has been running
Supports only
single TOS (TOS0)
routes
Optional Type of Service (ToS) specified in OSPF Version 2, Appendix F.1.2 is not
supported, so only one cost per interface can be assigned.
SPF schedule
delay
The delay after receiving a topology change notification and starting the SPF
calculation.
Hold time Sets the hold time between two consecutive SPF calculations.
Number of
concurrent DD
exchange
neighbors
Number of neighbors currently exchanging database descriptor packets.
Number of
external LSA
The number of external link-state advertisements (Type 5 LSAs) in the link-state
database. These LSAs advertise information about routes outside of the
autonomous system.
Checksum The sum of the LS checksums of the external link-state advertisements contained
in the link-state database.
Number of
opaque AS LSA
Number of opaque link-state advertisements (Type 9, 10 and 11 LSAs) in the link-
state database. These LSAs advertise information about external applications,
and are only used by OSPF for the graceful restart process.
Checksum The sum of the LS checksums of opaque link-state advertisements contained in
the link-state database.
Number of LSA
received
The number of link-state advertisements that have been received.
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