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, ( )

. (AS) IP- , , .

3 , .

(multihomed) AS AS, -. AS -. , AS - .

(stub) AS AS, . AS, - , , .

(transit) AS AS, , . , A AS B.

BGP (. Border Gateway Protocol, ) .

BGP, , , , , , . BGP , , .

BGP . 1994 , .

BGP TCP ( 179).

BGP, DNS, , Internet.

.RIP, OSPF

RIP (. Routing Information Protocol) , ( ), . RIP - , ( ) . , RIP 15 ( 16 ). RIP- 30 , . RIP TCP/IP, UDP 520.

RIP , , EIGRP, OSPF. 15 . .

OSPF (. Open Shortest Path First) , (link-state technology) (Dijkstras algorithm).

OSPF IETF 1988 . RFC 2328. OSPF (Interior Gateway Protocol IGP). OSPF .

OSPF :

( RIP2, - 30);

(VLSM);

( , );

(. );

.

 

 





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