Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 5 IS-IS Configuration5-19To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Add an interface to amesh groupisis mesh-group{ mesh-group-number |mesh-blocked }RequiredBy default, LSPs areflooded on interfacesnormally.5.3.18 Configuring Overload TagA failure of a router in an IS-IS domain will cause errors in the routing of the wholedomain. To avoid this, you can configure the overload tag for the routers.When the overload tag is set, other routers will not ask the router to forward packets.Follow these steps to configure overload tag:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —Configure overload tag set-overload RequiredNo overload tag is set by default.5.3.19 Configuring to Discard LSPs with Incorrect ChecksumChecksum is performed on the LSPs received locally by IS-IS and compared with thatcarried in the LSPs. By default, the LSP will not be discarded even if its checksum isinconsistent with that calculated.Follow these steps to configure IS-IS to discard LSPs with incorrect checksum:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —Configure to discard LSPswith incorrect checksumignore-lsp-checksum-errorRequiredBy default, LSP checksumerror is ignored.
