332 CHAPTER 31: OSPF CONFIGURATION
Network diagram
Figure 83 Network diagram for configuring DR election based on OSPF priority
Configuration procedure
# Configure Switch A
[Switch A] interface Vlan-interface 1
[Switch A-Vlan-interface1] ip address 196.1.1.1 255.255.255.0
[Switch A-Vlan-interface1] ospf dr-priority 100
[Switch A] router id 1.1.1.1
[Switch A] ospf
[Switch A-ospf-1] area 0
[Switch A-ospf-1-area-0.0.0.0] network 196.1.1.0 0.0.0.255
# Configure Switch B.
[Switch B] interface Vlan-interface 1
[Switch B-Vlan-interface1] ip address 196.1.1.2 255.255.255.0
[Switch B-Vlan-interface1] ospf dr-priority 0
[Switch B] router id 2.2.2.2
[Switch B] ospf
[Switch B-ospf-1] area 0
[Switch B-ospf-1-area-0.0.0.0] network 196.1.1.0 0.0.0.255
# Configure Switch C.
[Switch C] interface Vlan-interface 1
[Switch C-Vlan-interface1] ip address 196.1.1.3 255.255.255.0
[Switch C-Vlan-interface1] ospf dr-priority 2
[Switch C] router id 3.3.3.3
[Switch C] ospf
[Switch C-ospf-1] area 0
[Switch C-ospf-1-area-0.0.0.0] network 196.1.1.0 0.0.0.255
# Configure Switch D.
[Switch D] interface Vlan-interface 1
[Switch D-Vlan-interface1] ip address 196.1.1.4 255.255.255.0
[Switch D] router id 4.4.4.4
[Switch D] ospf
[Switch D-ospf-1] area 0
[Switch D-ospf-1-area-0.0.0.0] network 196.1.1.0 0.0.0.255
BDR
196.1.1.4/24
196.1.1.3/24
196.1.1.2/24
DR
Switch A
Switch D
Switch B
Switch C
1.1.1.1
4.4.4.4
3.3.3.3
2.2.2.2
196.1.1.1/24
To Next Page
Loading...
