Operation Manual – Routing ProtocolH3C S9500 Series Routing Switches Chapter 5 Integrated IS-IS Configuration5-15If neither level-1 nor level-2 is specified, the default setting is Level-1 and Level-2 Hellointerval. Namely, the command works on both Level-1 and Level-2.II. Setting the CSNP packet broadcast intervalThe CSNP packet is transmitted by the DIS over the broadcast network to synchronizethe link state database (LSDB). The CSNP packet is regularly broadcast over thebroadcast network at an interval, which can be set by users.Perform the following configuration in interface view.Table 5-18 Set the CSNP packet broadcast intervalOperation CommandSet the CSNP packet broadcast interval isis timer csnp seconds [ level-1 |level-2 ]Restore the default CSNP packetbroadcast interval on the interfaceundo isis timer csnp [ level-1 |level-2 ]If the level is not specified, it defaults to setting CSNP packet broadcast interval forLevel-1.By default, the CSNP packet is transmitted via interface every 10 seconds.III. Setting LSP packet genration intervalAs specified in the IS-IS protocol, when an event takes place, the related LSP packetshould be generated again. If LSP packets are generated frequently, a large amount ofresources will be occupied and the route’s efficiency will be affected. The exponentdigression method can improve the efficiency to a certain degree. The LSP packetgeneration interval can you be configured as per the actual requirement.Perform the following configuration in IS-IS view.Table 5-19 Set LSP packet generation intervalOperation CommandSet LSP packet generation interval timer lsp-generation x y z [ level-1 |level-2 ]Restore the default value of LSP packetgeneration intervalundo timer lsp-generation x y z[ level-1 | level-2 ]IV. Setting the LSP packet transmission intervalLSP carries the link state records for propagation throughout the area.Perform the following configuration in interface view.
