BigIron RX Series Configuration Guide 120553-1001986-01Configuring OSPFv3 48To reset the administrative distance of a route type to its system default, enter the no form of thiscommand.Configuring the OSPFv3 LSA pacing intervalThe Brocade device paces OSPFv3 LSA refreshes by delaying the refreshes for a specified timeinterval instead of performing a refresh each time an individual LSA’s refresh timer expires. Theaccumulated LSAs constitute a group, which the Brocade device refreshes and sends out togetherin one or more packets.The pacing interval, which is the interval at which the Brocade device refreshes an accumulatedgroup of LSAs, is configurable to a range from 10 – 1800 seconds (30 minutes). The default is 240seconds (four minutes). Thus, every four minutes, the Brocade device refreshes the group ofaccumulated LSAs and sends the group together in the same packets.The pacing interval is inversely proportional to the number of LSAs the Brocade device is refreshingand aging. For example, if you have approximately 10,000 LSAs, decreasing the pacing intervalenhances performance. If you have a very small database (40 – 100 LSAs), increasing the pacinginterval to 10 – 20 minutes might enhance performance only slightly.To change the OSPFv3 LSA pacing interval to two minutes (120 seconds), enter the followingcommand.BigIron RX(config)# ipv6 router ospfBigIron RX(config-ospf6-router)# timers lsa-group-pacing 120Syntax: [no] timers lsa-group-pacing <seconds>The <seconds> parameter specifies the number of seconds and can be from 10 – 1800 (30minutes). 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 intervalIf a database overflow condition occurs on the Brocade device, the device eliminates the conditionby removing entries that originated on the device. The exit overflow interval allows you to set howoften a device checks to see if the overflow condition has been eliminated. The default value is 0. Ifthe configured value of the database overflow interval is 0, then the device never leaves thedatabase overflow condition.For example, to modify the exit overflow interval to 60 seconds, enter the following command.BigIron RX(config-ospf6-router)# database-overflow-interval 60Syntax: [no] auto-cost reference-bandwidth <number>The <seconds> parameter can be a value from 0 – 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 limitBy 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, makesure to save the running-config file and reload the software. The change does not take effect untilyou reload or reboot the software.
