Shulou(Shulou.com)06/01 Report--

ENSP examples of multipoint subinterfaces and point-to-point subinterfaces:

Point-to-point subinterfaces: R1 to R2

Multipoint subinterfaces: R1 to R3, R4

Key configurations:

[R1] dis cur

Sysname R1

#

Router id 91.1.1.1

#

Interface Serial0/0/0

Link-protocol fr

Undo fr inarp

#

InterfaceSerial0/0/0.102 p2p

Fr dlci 102

Ip address 12.1.1.1 255.255.255.0

Ospf network-type p2p

#

Interface Serial0/0/0.134 p2mp # defaults to p2mp type multipoint sub-interface. You will find that there is still no p2mp when you hit p2mp and then dis cur int s0UniUniGUP 0.134.

Fr map ip 100.1.1.3 103 broadcast

Fr map ip 100.1.1.4 104 broadcast

Ip address 100.1.1.1 255.255.255.0

Ospf network-type p2mp

Ospf timer hello 10

#

Interface LoopBack0

Ip address 1.1.1.1 255.255.255.0

#

Ospf 10

Area 0.0.0.0

Network 1.1.1.1 0.0.0.0

Network 12.1.1.1 0.0.0.0

Network 100.1.1.1 0.0.0.0

#

[R2] dis cur

#

Sysname R2

#

Routerid 92.2.2.2

#

Interface Serial0/0/0

Link-protocol fr

Undo fr inarp

Fr map ip 12.1.1.1 201 broadcast

Ip address 12.1.1.2 255.255.255.0

Ospf network-type p2p

#

Ospf 10

Area 0.0.0.0

Network 2.2.2.2 0.0.0.0

Network 12.1.1.2 0.0.0.0

#

[R3] dis cur

#

Sysname R3

#

Router id 93.3.3.3

#

Interface Serial0/0/0

Link-protocol fr

Undo fr inarp

Fr map ip 100.1.1.1 301 broadcast

Ip address 100.1.1.3 255.255.255.0

Ospf network-type p2mp

Ospf timer hello 10

#

Interface LoopBack0

Ip address 3.3.3.3 255.255.255.0

#

Ospf 10

Area 0.0.0.0

Network 3.3.3.3 0.0.0.0

Network 100.1.1.3 0.0.0.0

#

[R4] dis cur

#

Sysname R4

#

Router id 94.4.4.4

#

Interface Serial0/0/0

Link-protocol fr

Undo fr inarp

Fr map ip 100.1.1.1 401 broadcast

Ip address 100.1.1.4 255.255.255.0

Ospf network-type p2mp

Ospf timer hello 10

#

Interface LoopBack0

Ip address 4.4.4.4 255.255.255.0

#

Ospf 10

Area 0.0.0.0

Network 4.4.4.4 0.0.0.0

Network 100.1.1.4 0.0.0.0

#

The whole network is accessible.

P2P and p2mp subinterfaces are used together to achieve the coexistence of different network segments

The above only discusses the non-full mesh situation:

The sub-interface of frame Relay can choose P2P or p2mp. The untapped type of the subinterface is p2mp, but it is still NBMA type (after the subinterface, the p2mp is not displayed by default), which is consistent with the main interface type. In addition, it is not possible for NBMA to refer unilaterally to neighbors.

If you modify the values of peer and dr-priority, the Huawei router will take effect directly, and there is no need to restart the process.

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