In Figure 6, the local hosts share the same destination MAC address of 00:00:5E:00:01:01 and send DLSw traffic to the remote host with a MAC address of 00:02:00:00:00:01. Router 1 and Router 2 are configured for DLSw redundancy and map the local destination MAC address to the remote MAC address. Router 1 is also the designated master. If Router 1 becomes unavailable, Router 2, the backup router, takes over as the master router.
Figure 6: DLSw Ethernet Redundancy Topology
To configure DLSw Ethernet redundancy, do the following:
Configuration on
Router 1
Configure the redundancy group, redundancy group options, and the priority cost of each redundancy group option:
- [edit]
- interfaces {
-
- fe-0/0/0 {
-
- unit 0 {
-
- family llc2 {
-
- redundancy-group 1 {
- advertise-interval 1;
-
- map {
- local-mac 00:00:5e:00:01:01 remote-mac 00:02:00:00:00:01;
-
- preempt hold-time 20;
- priority 200;
-
- track {
-
- dlsw {
- destination 00:02:00:00:00:01 priority-cost 50;
- peer 10.10.10.10 priority-cost 25;
- }
- interface e1-0/0/2.0 priority-cost 40;
- }
- }
- }
- }
- }
- }
- }
- }
Configuration on
Router 2
Configure the redundancy group, redundancy group options, and the priority cost of each redundancy group option:
- [edit]
- interfaces {
-
- fe-0/0/1 {
-
- unit 0 {
-
- family llc2 {
-
- redundancy-group 1 {
-
- map {
- local-mac 00:00:5e:00:01:01 remote-mac 00:02:00:00:00:01;
-
- priority-cost 190;
-
- track {
-
- dlsw {
- destination 00:02:00:00:00:01 priority-cost 50;
- peer 10.10.10.10 priority-cost 25;
- }
- interface e1-0/0/2.0 priority-cost 40;
- }
- }
- }
- }
- }
- }
- }
- }
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