Avaya Configuring IP Services Manual do Utilizador descarregar pdf (Página 41)

100

101

Configuring IP Routers and Interfaces

2-13

With endnode support enabled, whenever an IP router receives a packet and

determines that the packet’s next hop is located across a source-routing network,

the router

• Adds the necessary Routing Information Field (RIF) information to the

packet’s MAC header

• Sends the packet out onto the network where it is source routed toward the

next hop

Upon receiving the packet from the Token Ring network, the peer router strips off

the RIF and continues to route the packet toward the destination network address

(Figure 2-5).

Figure 2-5. IP Routers Source Routing across a Token Ring Network

Bridge A

Packet sent from End Station 1

Packet sent from Router 2

Packet sent from Router 1

Source Route RIF

0830 001A002B 0030

End Station 1

End Station 2

Bridge B

Router 2

Router 1

Token

Ring

Token

Ring

Token

Ring

WF2 WF1 SNAP IP DATA

WF2 WF1

DATA

SNAP IP

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 465 466

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