Users Guide

Process ID is the ID assigned when configuring OSPFv2 globally.
4 Configure the area as a stub area.
CONFIG-ROUTER-OSPF-id mode
area area-id stub [no-summary]
Use the keywords no-summary to prevent transmission into the area of summary ASBR LSAs.
Area ID is the number or IP address assigned when creating the area.
Example of the show ip ospf database database-summary Command
To view which LSAs are transmitted, use the show ip ospf database process-id database-summary command in
EXEC Privilege mode.
Dell#show ip ospf 34 database database-summary
OSPF Router with ID (10.1.2.100) (Process ID 34)
Area ID Router Network S-Net S-ASBR Type-7 Subtotal
2.2.2.2 1 0 0 0 0 1
3.3.3.3 1 0 0 0 0 1
Dell#
To view information on areas, use the show ip ospf process-id command in EXEC Privilege mode.
Configuring LSA Throttling Timers
Configured link-state advertisement (LSA) timers replace the standard transmit and acceptance times for LSAs.
The LSA throttling timers are configured in milliseconds. The interval time increases exponentially until a maximum time is
reached. If the maximum time is reached, the system continues to transmit at the maximum interval. If the system is stable for
twice the maximum interval time, it reverts to the start-interval timer. The cycle repeats.
To configure the LSA throttling timers, use the following commands.
1. Specify the interval times for all LSA transmissions. CONFIG-ROUTER-OSPF-id mode. timers throttle lsa all
{start-interval | hold-interval | max-interval} To set the minimum interval between initial sending and
resending the same LSA, use the keywords start-interval. To set the next interval to send the same LSA, use the
keywords
hold-interval. The hold-interval is the time between sending the same LSA after the start-interval is
attempted. To set the maximum amount of time the system waits before sending the LSA, use the keywords max-
interval
. The interval range is 0 to 600,000 milliseconds.
2. Specify the interval for LSA acceptance. CONFIG-ROUTER-OSPF-id mode. timers throttle lsa all arrival-
time
Enabling Passive Interfaces
A passive interface is one that does not send or receive routing information.
Enabling passive interface suppresses routing updates on an interface. Although the passive interface does not send or receive
routing updates, the network on that interface is still included in OSPF updates sent via other interfaces.
To suppress the interface’s participation on an OSPF interface, use the following command. This command stops the router
from sending updates on that interface.
• Specify whether all or some of the interfaces are passive.
CONFIG-ROUTEROSPF- id mode
passive-interface {default | interface}
The default is enabled passive interfaces on ALL interfaces in the OSPF process.
Open Shortest Path First (OSPFv2 and OSPFv3) 634