Dell MX9116n EMC SmartFabric OS10 User Guide - Page 643

• hold-time - Sets the additional hold time between two SPF calculations in milliseconds, from 1 to 600000; default 10000. • max-wait - Sets the maximum wait time between two SPF calculations in milliseconds, from 1 to 600000; default 10000. Default • start-time - 1000 milliseconds • hold-time - 10000 milliseconds • max-wait - 10000 milliseconds Command Mode ROUTER-OSPF Usage Information By default, SPF timers are disabled in an OSPF instance. Use SPF throttling to delay SPF calculations during periods of network instability. In an OSPF network, a topology change event triggers an SPF calculation after a start time. When the start timer finishes, a hold time may delay the next SPF calculation for an additional time. When the hold timer is running: • Each time a topology change occurs, the SPF calculation delays for double the configured hold time up to maximum wait time. • If no topology change occurs, an SPF calculation performs and the hold timer is reset to its configured value. If you do not specify a start-time, hold-time, or max-wait value, the default values are used. The no version of this command removes the configured SPF timers and disables SPF throttling in an OSPF instance. Example OS10(config)# router ospf 100 OS10(config-router-ospf-100)# timers spf 1200 2300 3400 OS10(config-router-ospf-100)# do show ip ospf Routing Process ospf 100 with ID 12.1.1.1 Supports only single TOS (TOS0) routes It is Flooding according to RFC 2328 SPF schedule delay 1200 msecs, Hold time between two SPFs 2300 msecs Convergence Level 0 Min LSA origination 0 msec, Min LSA arrival 1000 msec Min LSA hold time 5000 msec, Max LSA wait time 5000 msec Number of area in this router is 1, normal 1 stub 0 nssa 0 Area (0.0.0.1) Number of interface in this area is 1 SPF algorithm executed 1 times Supported Releases 10.4.0E(R1) or later timers throttle lsa all Configures the LSA transmit intervals. Syntax Parameters Default timers lsa all [start-interval | hold-interval | max-interval] • start-interval - Sets the minimum interval between initial sending and re-sending the same LSA in milliseconds, from 0 to 600,000. • hold-interval - Sets the next interval to send the same LSA in milliseconds. This is the time between sending the same LSA after the start-interval is attempted, from 1 to 600,000. • max-interval - Sets the maximum amount of time the system waits before sending the LSA in milliseconds, from 1 to 600,000. . • start-interval - 0 milliseconds • hold-interval - 5000 milliseconds • max-interval - 5000 milliseconds Command Mode ROUTER-OSPF Usage Information The no version of this command removes the LSA transmit timer. Layer 3 643