Sunday, August 29, 2010

BSCI - OSPF - Network Types - Point-to-Multipoint Non-Broadcast

Point-to-Multipoint Non-Broadcast:

  • Cisco proprietary
  • Single subnet required
  • No DR/BDR elected
  • Neighbors specifically configured - this is the difference between standard and Cisco Point-to-Multipoint
Configuration:
R1(config)#interface Serial0
R1(config-if)#ip address 192.168.10.1 255.255.255.0
R1(config-if)#ip ospf network point-to-multipoint non-broadcast
R1(config-if)#encapsulation frame-relay
R1(config-if)#frame-relay local-dlci 100
R1(config-if)#frame-relay map ip 192.168.10.2 102
R1(config-if)#frame-relay map ip 192.168.10.3 103
R1(config-if)#frame-relay map ip 192.168.10.4 104
R1(config-if)#no shut
!
R1(config)#router ospf 1
R1(config-router)#network 192.168.10.0 0.0.0.255 area 0
R1(config-router)#neighbor 192.168.10.2
R1(config-router)#neighbor 192.168.10.3
R1(config-router)#neighbor 192.168.10.4
!

On R2:
R2(config)#interface S0/0
R2(config-if)#ip address 192.168.10.2 255.255.255.0
R2(config-if)#encapsulation frame-relay
R2(config-if)#ip ospf network point-to-multipoint non-broadcast
R2(config-if)#frame-relay local-dlci 201
R2(config-if)#frame-relay map ip 192.168.10.1 201
R2(config-if)#no shut
!
R2(config)#router ospf 1
R2(config-routrer)#network 10.0.1.0 0.0.0.255 area 0
!

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