Ethernet redundancy configuration example for LAN-to-LAN DLSw

As shown in Figure 82:

• DLSw operates in LAN-to-LAN mode.

• Configure DLSw on Router A, Router B, and Router C to connect the IBM host with the SNA host through the Internet.

• Configure Router B as the primary router and Router C as the secondary router to implement DLSw Ethernet redundancy.

1. Configure Router A:

   # Configure interfaces on Router A to make sure that the local DLSw peer 1.1.1.1 and remote peers 2.2.2.2 and 3.3.3.3 can reach each other. (Details not shown.)

   # Configure DLSw on Router A.

   <RouterA> system-view
   [RouterA] bridge enable
   [RouterA] bridge 5 enable
   [RouterA] dlsw local 1.1.1.1
   [RouterA] dlsw remote 2.2.2.2
   [RouterA] dlsw remote 3.3.3.3
   [RouterA] dlsw bridge-set 5
   [RouterA] interface ethernet 1/0
   [RouterA-Ethernet1/0] bridge-set 5
   

2. Configure Router B:

   # Configure interfaces on Router B to make sure that the local DLSw peer 2.2.2.2 and remote peer 1.1.1.1 can reach each other. (Details not shown.)

   # Configure DLSw on Router B.

   <RouterB> system-view
   [RouterB] dlsw local 2.2.2.2
   [RouterB] dlsw remote 1.1.1.1
   

   # Enable DLSw Ethernet redundancy on interface Ethernet 1/0, and configure the multicast address as 9999-9999-9999 and set the priority to 10 for primary/secondary router election.

   [RouterB] interface ethernet 1/0
   [RouterB-Ethernet1/0] dlsw ethernet-backup enable 9999-9999-9999 priority 10
   

3. Configure Router C:

   # Configure interfaces on Router C to make sure that the local DLSw peer 3.3.3.3 and remote peer 1.1.1.1 can reach each other. (Details not shown.)

   # Configure DLSw on Router C.

   <RouterC> system-view
   [RouterC] dlsw local 3.3.3.3
   [RouterC] dlsw remote 1.1.1.1
   

   # Enable DLSw Ethernet redundancy on Ethernet 1/0, and configure the multicast address as 9999-9999-9999 for primary/secondary router election.

   [RouterC] interface ethernet 1/0
   [RouterC-Ethernet1/0] dlsw ethernet-backup enable 9999-9999-9999
   

The Ethernet redundancy function will select a router as the primary router. Hewlett Packard Enterprise recommends that you configure a high-performance router as the primary router by setting a higher priority for the router.