Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 5 IS-IS Configuration5-205.3.20 Configuring to Log Peer ChangesWith peer state logging enabled, IS-IS peer state changes are output to the consoleterminal.Follow these steps to enable peer change logging:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —Enable peer changelogging log-peer-changeRequiredBy default, peer changelogging is disabled.5.3.21 Assigning an LSP Refresh TimeAll LSPs are sent periodically to synchronize the LSPs in an area.Follow these steps to assign an LSP refresh time:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —Assign an LSPrefresh time timer lsp-refresh secondsRequiredBy default, LSPs arerefreshed every 900 seconds,namely, 15 minutes.5.3.22 Assigning an LSP Maximum Aging TimeAn LSP is given a maximum aging value when it is generated by the router. When theLSP is sent to other routers, its maximum aging value goes down gradually. If therouter does not get the update for the LSP before the maximum aging value reaches 0,the LSP will be deleted from the LSDB.Follow these steps to assign an LSP maximum aging time:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —
