("", " "),
:
- .
- .
- .
- .
.
, Link State Algorithm (LSA).
:
- HELLO.
- ( ).
- - . .
.
. RIP.
RIP - - . (hop count) ( ).
: 1)RIPv1 RFC 1058; 2)RIPv2 (CIDR)RFC 2453; 3)RIPng RIPv2 IPv6 RFC 2080
( ), - . RIP " ". , .
, . - , , , , , - " ". RIP 16.
RIP
- (TTL)( 30 , TTL 180 )
- () , (Count to Infinity)
RIP.
- (Split horizon) , (.. )
- (Triggered updates) 30 , . ( 100% ).
- (Hold down) , . .
|
|
RIP , - .
. OSPF.
-
- IETF 1988 ., RFC 2328 1991.
- (QoS): , , .
OSPF :
1. HELLO- ( OSPF (, ) , OSPF-, Hello-. Hello- - . OSPF-, ( ) Hello-. OSPF , , .)
hello- OSPF. , hello-.
2.
- , . .
-
- . , .
3. ( )
, ( )
4.
OSPF HELLO:
- 10 .
-
OSPF :
- TTL , : Link-State Request, Link-State Update
- ( RIP)
-
- QoS
- ( )
- :
- .. ();
-OSPF