Brocade Communications Systems FastIron SX 1600, Руководство по настройке, Страница: 310 / 593

The pacing interval is inversely proportional to the number of LSAs the Brocade device is refreshing and aging. For example, if you have
approximately 10,000 LSAs, decreasing the pacing interval enhances performance. If you have a very small database (40 - 100 LSAs),
increasing the pacing interval to 10 - 20 minutes might enhance performance only slightly.
To change the OSPFv3 LSA pacing interval to two minutes (120 seconds), enter the following command.
device(config)# ipv6 router ospf
device(config-ospf6-router)# timers lsa-group-pacing 120
Syntax: [no] timers lsa-group-pacing seconds
The seconds parameter specifies the number of seconds and can be from 10 through 1800 (30 minutes). The default is 240 seconds
(four minutes).
To restore the pacing interval to its default value, use the no form of the command.
Modifying exit overflow interval
If a database overflow condition occurs on the Brocade device, the device eliminates the condition by removing entries that originated on
the device. The exit overflow interval allows you to set how often a device checks to see if the overflow condition has been eliminated.
The default value is 0. If the configured value of the database overflow interval is 0, then the device never leaves the database overflow
condition.
For example, to modify the exit overflow interval to 60 seconds, enter the following command.
device(config-ospf6-router)# database-overflow-interval 60
Syntax: database-overflow-interval seconds
The seconds parameter can be a value from 0 through 86400 seconds (24 hours).
To reset the exit overflow interval to its system default, enter the no form of this command.
Modifying external link state database limit
By default, the link state database can hold a maximum of 2000 entries for external (type 5) LSAs. You can change the maximum
number of entries from 500 - 8000. After changing this limit, make sure to save the running-config file and reload the software. The
change does not take effect until you reload or reboot the software.
For example, to change the maximum number entries from the default of 2000 to 3000, enter the following command.
device(config-ospf6-router)# external-lsdb-limit 3000
Syntax: external-lsdb-limit entries
The entries parameter can be a numerical value from 500 through 8000 seconds.
To reset the maximum number of entries to its system default, enter the no form of this command.
Setting all OSPFv3 interfaces to the passive state
You can set all the Open Shortest Path First Version 3 (OSPFv3) interfaces to the default passive state using the default-passive-
interface command . When you configure the interfaces as passive, the interfaces drop all the OSPFv3 control packets.
To set all the OSPFv3 interfaces to passive, enter the following commands.
device# configure terminal
device(config)# ipv6 router ospf vrf A
device(config-ospf6-router-vrf-A)# default-passive-interface
Configuring OSPFv3
FastIron Ethernet Switch Layer 3 Routing
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