243 
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.  
Ethernet redundancy configuration example for 
SDLC-to-LAN DLSw 
Network requirements 
As shown in Figure 83: 
•  DLSw operates in SDLC-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.