RIP, IGRP, EIGRP, OSPF, BGP, IS-IS - PowerPoint PPT Presentation

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RIP, IGRP, EIGRP, OSPF, BGP, IS-IS

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RIP, IGRP, EIGRP, OSPF, ... (routing update) (distance vector) ... RIP v2, Eigrp, Ospf, ... – PowerPoint PPT presentation

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Title: RIP, IGRP, EIGRP, OSPF, BGP, IS-IS


1
??? ??
1. ??????
?? ?? ???? ??? ??? ???? ???? ?
??? ???? RIP, IGRP, EIGRP, OSPF, BGP, IS-IS ????
???? TCP/IP, IPX, Apple Talk
2
??? ??
2. ??? ????? ??
?? ????? ??? ??? ?? (routing update)? ??? ??
???? ??(distance vector) ??? ????? ?? ?? (link
state) ??? ???? ? ????.
??? ??? ??? ??? ?? ?? ??? ?? ????(classful) ?? ?
????? ????? (classless) ??? ????? ????.
??? ?? (AS, Autonomous System) ?? ?? ?? ?? ????
??? ? ?? ??? ?? IGP(interior gateway protocol) ??
EGP(exterior gateway Protocol)? ????.
3
??? ??
?????? ??? ????
???
1
2
3
??? ????
R2
R3
R4
3
1.1.1.0
3
3
4
??? ??
???????? ???? ??? ?? ??
????
2.2.1.1
S0 2.2.1.1
2.0.0.0/8
5
??? ??
?? ?? ??? ????
1.1.1.0
1.1.1.0
1.1.1.0
????
1
1
1
???
R1
R1
R1
?????
R2
R2
R2
?????
6
??? ??
???? ??? ???? ??? ?? ??? ??? ??? ??? ?? ??? ?????
???? (classful)??? ??????? ??. Rip v1, IGRP
????? ??? ???? ??? ?? ??? ??? ??? ??? ????? ???
????? ???? ?(classless) ??? ??????? ??. RIP v2,
Eigrp, Ospf, Bgp
IGP? EGP ?? ??? ?? ??? ??? ???? ????? ???
AS(autonomous System)??? ??. ?? AS ???? ???? ???
????? IGP(interior Gateway protocol), ?? ?? AS??
???? ?? EGP(exterior gateway Protocol)?? ??. RIP,
EIGRP, OSPF? IGP?? BGP? EGP? ????.
7
???? ??? ??? ???
??? ????? AD?
???
??? ????? ?? ??? ?? AD
?? ??? ???? 0
?? ?????? ??? ?? ?? 0
??? ? IP ??? ??? ?? ?? 1
EIGRP ?? ??(summary route) 5
?? BGP 20
?? EIGRP 90
OSPF 110
IS-IS 115
RIP 120
?? EIGRP 170
?? BGP 200
??? ???? ???
RIP ? ???
EIGRP ??, ??, ???, ??, MTU
OSPF ???(??)
BGP ??(attribute)
8
???? ??? ??? ???
??? ??? ???? ??? ????? ?? ?????? ??? ? IP ???
??? ?? ??? ???? ???.
???? ?? ? ???? ??? ????? ? ??? ??? ??? ??? ????
??? ??? ? ??? ??? ?? ? ??? ????? ??? ???? ??
?(longest match rule) ??? ??.
S0.32
S0.34
4.4.4.0/24
4.4.4.0/25
4.4.4.0/25 S0.34 4.4.4.0/24 S0.32
9
??? ????? ??
Point to Point ???? ??? ? ??? (point-to-point)
????? ??? ????? ?? ?? ??? ??? ???? ?? ??? ????
????? ???. ??? 2 ????? HDLC, PPP ?? ??? ?????,
??? ??? ??? ? ??? ?? ??? ?? ?? ???? ??? ? ???
??????.
?????? ????? ????
E0
?????? / ?????
E0
E0
E0
10
??? ????? ??
NBMA ????
DLCI 201
?????? / ?????
DLCI 204
?????? / ?????
S0
DLCI 203
?????? / ?????
S0
S0
??????
S0
11
??? ????? ??
??? ??? NBMA ????? ?? ?
S0
??????
S0
S0
12
?? ?? ??
?? ???? ?? ??? ????? ?? ??? ???? ?? ???? ?? ????.
?? ??? ???? ??? ?? ??? ?? ?? ??? ???? ???? ????
???? ??? ? ??.
?? ???? ??? ??? ???? ???.
13
?? ?? ??
??? ??? ?? ?? ??
R1(config)ip route 1.1.0.0 255.255.0.0 1.1.12.2
14
?? ?? ??
??? ??? ??? ?? ?? ??
R1(config)ip route 0.0.0.0 0.0.0.0 1.1.12.2
R1(config)ip default-network 100.0.0.0
R1(config)ip route 100.0.0.0 255.0.0.0 1.1.34.3
15
?? ?? ??
??? ??? ??? ?????
??? ?? ?? ??? ????? ??? ??? ?? ????. ???, L2 ????
????(boot mode)??? ???? ?? ??? ??? ???? ?? ????
?? ???? ?? ?? ????? ??? ??? ? ???? ?? ??????????.
R1(config)ip default-gateway 1.1.12.2 ???
?????? ?? ??? ???? ???, no ip routing ???? ??? ??
? ??? ??? ???? ????.
16
?? ?? ??
??? ??? Ip classless
1.1.1.1
1.1.2.2
1.1.12.0
.1
.2
S0
S0.12
mujlti
??? ????(major network, ????? ?? ?? IP ?? ????
??)? ?? ???? ?? ???? ???? ?? ? ? ?? ?? ??????
??. R1? ???? R1? ??? 1.1.1.0, 1.1.12.0 ????? ???
?? ????? ?? ?????. R1?? R2? ??? ??? ???? ??,
1.1.2.0/24 ????? ?? ?? ??? ?? ?, R1? ip classless
???? ???? R2? 1.1.2.2? ??? ??. ?, ip classless?
?? ????? ??? ??? ??? ? ? ??? ?? ?????.
17
?? ?? ??
??? ??? ??
1.1.3.3
Point-to-point
1.1.23.0
.2
.3
128Kbps S0.23
1.1.32.0
.2
.3
R3
R2
T1 S0.32
R2
R3
Point-to-point
???? ??? T1 ??(s0.32)? ????? ? ??? ??? ?? ?? ???
128K bps ?? (s0.23)? ???? ?? ??? ??. ? ?? ?? ???
AD? ?? ???? ? ?? ????? ??.
R2(config)ip route 1.1.3.0 255.255.255.0
1.1.23.3 150 R2(config)ip route 1.1.3.0
255.255.255.0 1.1.32.3
18
?? ?? ??
??? ??? ?? ??
??? ????? ?? ??? ?? ?? ??? ??? ??? ?, ? ???? ???
??? ???? ?? ?? ?? (load balancing) ??? ??. ????
?? ??????? ??? ??? ???? ?? ?????? ?? ?? ?? ???
(switching)??? ??. ??? ???? ??? ??? ?? ??? ???,
?? ???? ??? ???? ???, ??? ???, CEF? ??.
????? ??? ?? ???? R1show ip interface s0
19
?? ?? ??
???? ???
1.1.23.0
.2
.3
S0.23
1.1.32.0
.2
.3
R3
R2
S0.32
R2
R3
???? ??? ??? ??? ??? ??? ???? ??? ? ??? ?? ????
??? ???? ??? ???? ?????? ??.
Per-packet load balancing IP tableid0,
s1.1.1.1 (serial1/0.23), d1.1.4.4
(serial1/0.34) routed IP tableid0, s1.1.1.1
(serial1/0.32), d1.1.4.4 (serial1/0.34)
routed IP tableid0, s1.1.1.1 (serial1/0.23),
d1.1.4.4 (serial1/0.34) routed IP tableid0,
s1.1.1.1 (serial1/0.32), d1.1.4.4
(serial1/0.34) routed IP tableid0, s1.1.1.1
(serial1/0.23), d1.1.4.4 (serial1/0.34) routed
???? ??? ??? R3(config)int s1/0.23 R3(config-subi
f)no ip route-cache
20
?? ?? ??
??? ???
?? ???? ?? ??? ?? ?????? ???? ?? ??? ??? ??? ?
????, ? ?? ????? ?? ??? ???? ?? ??? ??? ??? ???
??.
???? ???? ??? ???? ??? ??? ???? ?? ?????? ????.
IP tableid0, s1.1.1.1 (serial1/0.23),
d1.1.4.4 (serial1/0.34) routed IP tableid0,
s1.1.1.1 (serial1/0.23), d1.1.4.4
(serial1/0.34) routed IP tableid0, s1.1.1.1
(serial1/0.23), d1.1.4.4 (serial1/0.34)
routed IP tableid0, s1.1.1.1 (serial1/0.23),
d1.1.4.4 (serial1/0.34) routed IP tableid0,
s1.1.1.1 (serial1/0.23), d1.1.4.4
(serial1/0.34) routed
21
?? ?? ??
CEF 1. ??? ???? ?? ? ?? ???? ???? ?? ???
?????, CEF? ???? ??? ???? ??? ??? ???. 2. ???
???? ??? ? ???. 3. ??? ??? ??? ??? IP??? ? ????
?? ??? ?? ??? ?. ???, CEF? ??? IP ??? ??? IP ???
???? ??(hash) ?? ??? ??? ?? ?? ?????? ????. ???,
CEF? ??? ??? ?? ?? ????.
CEF ??? ?? R2(config)ip cef
22
?? ?? ??
IP tableid0, s1.1.1.1 (serial1/0.32),
d1.1.4.5 (serial1/0.34) routed IP tableid0,
s1.1.1.1 (serial1/0.32), d1.1.4.5
(serial1/0.34) routed IP tableid0, s1.1.1.1
(serial1/0.32), d1.1.4.5 (serial1/0.34)
routed IP tableid0, s1.1.1.1 (serial1/0.32),
d1.1.4.5 (serial1/0.34) routed IP tableid0,
s1.1.1.1 (serial1/0.32), d1.1.4.5
(serial1/0.34) routed
IP tableid0, s1.1.1.2 (serial1/0.23),
d1.1.4.5 (serial1/0.34) routed IP tableid0,
s1.1.1.2 (serial1/0.23), d1.1.4.5
(serial1/0.34) routed IP tableid0, s1.1.1.2
(serial1/0.23), d1.1.4.5 (serial1/0.34)
routed IP tableid0, s1.1.1.2 (serial1/0.23),
d1.1.4.5 (serial1/0.34) routed IP tableid0,
s1.1.1.2 (serial1/0.23), d1.1.4.5
(serial1/0.34) routed
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