Operation Manual – IPv4 RoutingH3C S5500-EI Series Ethernet Switches Chapter 4 IS-IS Configuration4-41-------------------------------------IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags--------------------------------------------------------------------------192.168.0.0/24 10 NULL Vlan300 Direct D/L/-10.1.1.0/24 10 NULL Vlan100 Direct D/L/-10.1.2.0/24 10 NULL Vlan200 Direct D/L/-172.16.0.0/16 20 NULL Vlan300 192.168.0.2 R/-/-Flags: D-Direct, R-Added to RM, L-Advertised in LSPs, U-Up/Down Bit Set[SwitchD] display isis routeRoute information for ISIS(1)-----------------------------ISIS(1) IPv4 Level-2 Forwarding Table-------------------------------------IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags--------------------------------------------------------------------------192.168.0.0/24 10 NULL Vlan300 Direct D/L/-10.1.1.0/24 20 NULL Vlan300 192.168.0.1 R/-/-10.1.2.0/24 20 NULL Vlan300 192.168.0.1 R/-/-172.16.0.0/16 10 NULL Vlan100 Direct D/L/-Flags: D-Direct, R-Added to RM, L-Advertised in LSPs, U-Up/Down Bit Set4.8.2 DIS Selection ConfigurationI. Network requirementsAs shown in Figure 4-15, Switch A, B, C and Switch D reside in IS-IS area 10 on abroadcast network (Ethernet). Switch A and Switch B are Level-1-2 switches, Switch Cis a Level-1 switch, and Switch D is a Level-2 switch.Change the DIS priority of Switch A to make it selected as the Level-1-2 DIS router.
