Cisco Systems 3130 User Manual
38-34
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 38 Configuring IP Unicast Routing
Configuring OSPF
Beginning in privileged EXEC mode, follow these steps to configure these OSPF parameters:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
router ospf process-id
Enable OSPF routing, and enter router configuration mode.
Step 3
summary-address address mask
(Optional) Specify an address and IP subnet mask for redistributed
routes so that only one summary route is advertised.
routes so that only one summary route is advertised.
Step 4
area area-id virtual-link router-id
[hello-interval seconds]
[retransmit-interval seconds] [trans]
[[authentication-key key] |
message-digest-key keyid md5 key]]
[hello-interval seconds]
[retransmit-interval seconds] [trans]
[[authentication-key key] |
message-digest-key keyid md5 key]]
(Optional) Establish a virtual link and set its parameters. See the
for parameter
definitions and
for virtual link defaults.
Step 5
default-information originate [always]
[metric metric-value] [metric-type
type-value] [route-map map-name]
[metric metric-value] [metric-type
type-value] [route-map map-name]
(Optional) Force the ASBR to generate a default route into the OSPF
routing domain. Parameters are all optional.
routing domain. Parameters are all optional.
Step 6
ip ospf name-lookup
(Optional) Configure DNS name lookup. The default is disabled.
Step 7
ip auto-cost reference-bandwidth ref-bw
(Optional) Specify an address range for which a single route will be
advertised. Use this command only with area border routers.
advertised. Use this command only with area border routers.
Step 8
distance ospf {[inter-area dist1] [inter-area
dist2] [external dist3]}
dist2] [external dist3]}
(Optional) Change the OSPF distance values. The default distance
for each type of route is 110. The range is 1 to 255.
for each type of route is 110. The range is 1 to 255.
Step 9
passive-interface type number
(Optional) Suppress the sending of hello packets through the
specified interface.
specified interface.
Step 10
timers throttle spf spf-delay spf-holdtime
spf-wait
spf-wait
(Optional) Configure route calculation timers.
•
spf-delay—Delay between receiving a change to SPF
calculation. The range is from 1 to 600000. miliseconds.
calculation. The range is from 1 to 600000. miliseconds.
•
spf-holdtime—Delay between first and second SPF calculation.
The range is form 1 to 600000 in milliseconds.
The range is form 1 to 600000 in milliseconds.
•
spf-wait—Maximum wait time in milliseconds for SPF
calculations. The range is from 1 to 600000 in milliseconds.
calculations. The range is from 1 to 600000 in milliseconds.
Step 11
ospf log-adj-changes
(Optional) Send syslog message when a neighbor state changes.
Step 12
end
Return to privileged EXEC mode.
Step 13
show ip ospf [process-id [area-id]] database Display lists of information related to the OSPF database for a
specific router. For some of the keyword options, see the
.
Step 14
copy running-config startup-config
(Optional) Save your entries in the configuration file.