Because OSPF (Open Shortest Path First) broadcast networks are being used, configure the DR and BDR for each VLAN (Virtual LAN). Configure the EAPS (Extreme Automatic Protection Switching) transit and controller as the DR by using a higher OSPF priority value since it is not performing L2 blocking. The EAPS master and partner switch is configured as the BDR. In this example, all edge EAPS protected VLANs are placed in the OSPF backbone area, but another OSPF area could be created if desired.
Example OSPF DR configuration:
* AGG-SWITCH#1.5 # enable ipforwarding vlan green-1 * AGG-SWITCH#1.6 # enable ipforwarding vlan purple-1 * AGG-SWITCH#1.7 # enable ipforwarding vlan orange-1 * AGG-SWITCH#1.8 # enable ipforwarding vlan red-1 * AGG-SWITCH#1.9 # configure ospf routerid 172.16.1.1 * AGG-SWITCH#1.10 # configure ospf add vlan green-1 area 0.0.0.0 * AGG-SWITCH#1.11 # configure ospf add vlan purple-1 area 0.0.0.0 * AGG-SWITCH#1.12 # configure ospf add vlan orange-1 area 0.0.0.0 * AGG-SWITCH#1.13 # configure ospf add vlan red-1 area 0.0.0.0 * AGG-SWITCH#1.14 # configure ospf vlan green-1 priority 110 * AGG-SWITCH#1.15 # configure ospf vlan purple-1 priority 110 * AGG-SWITCH#1.16 # configure ospf vlan orange-1 priority 110 * AGG-SWITCH#1.17 # configure ospf vlan red-1 priority 110 * AGG-SWITCH#1.18 # enable ospf
Example OSPF BDR configuration:
* AGG-SWITCH#2.5 # enable ipforwarding vlan green-1 * AGG-SWITCH#2.6 # enable ipforwarding vlan purple-1 * AGG-SWITCH#2.7 # enable ipforwarding vlan orange-1 * AGG-SWITCH#2.8 # enable ipforwarding vlan red-1 * AGG-SWITCH#2.9 # configure ospf routerid 172.16.1.2 * AGG-SWITCH#2.10 # configure ospf add vlan green-1 area 0.0.0.0 * AGG-SWITCH#2.11 # configure ospf add vlan purple-1 area 0.0.0.0 * AGG-SWITCH#2.12 # configure ospf add vlan orange-1 area 0.0.0.0 * AGG-SWITCH#2.13 # configure ospf add vlan red-1 area 0.0.0.0 * AGG-SWITCH#2.14 # configure ospf vlan green-1 priority 100 * AGG-SWITCH#2.15 # configure ospf vlan purple-1 priority 100 * AGG-SWITCH#2.16 # configure ospf vlan orange-1 priority 100 * AGG-SWITCH#2.17 # configure ospf vlan red-1 priority 100 * AGG-SWITCH#2.18 # enable ospf
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