Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 5 IS-IS Configuration5-9To do... Use the command... RemarksEnter system view system-view —Configure ISIS isis [ tag ]RequiredBy default, no IS-IS routing processis enabled.5.3.2 Configuring a NETA NET defines the current IS-IS area address and router system ID.Follow these steps to configure a NET:To do... Use the command... RemarksEnter system view system-view —Enter IS-IS view isis [ tag ] —Enable network entity network-entity net Required5.3.3 Enabling IS-IS on the Specified InterfaceFollow these steps to enable IS-IS on the specified interface:To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-type interface-number —Enable IS-IS isis enable [ tag ] Required5.3.4 Configuring DIS PriorityIn a broadcast network, IS-IS needs to select a router as DIS.When a DIS needs to be selected from the IS-IS neighbors on the broadcast network,the Level-1 DIS and Level-2 DIS should be selected respectively. The higher priority aDIS has, the more likely it is to be chosen. If two or more routers with the highestpriorities exist on the broadcast network, the router that has the greatest MACaddress will be chosen. For adjacent routers that have the same priority of 0, therouter that has the greatest MAC address will still be chosen.Level-1 DIS and Level-2 DIS are elected respectively. You can set different prioritiesfor DISs at different levels to be elected.Follow these steps to configure DIS priority:
