各位版主、各位达人们好。: I* K5 m" Y: v0 Q' }1 B
小弟在学习OSPF的过程中，遇到一些问题，可能在各位看来，非常小白，但还是希望各位能够耐心指点，这也是对我这个新人的鼓励嘛 不胜感激。。 {! \6 `2 P. g' O% ~5 q% ^* g
下面我贴我的拓扑图和我在路由中COPY出来的相关信息，问题我会放在最后贴出来。谢谢- [' R: z7 x" j+ H) r) T6 U; B
- { _6 ~" l" v: {. t) c1 B上面这张是拓扑图
- C5 g) S* E- c; K+ M7 C8 p下面我开始贴各路由里SHOW出来的信息。1 [" a& K6 I* ~' p' X* u. z
R1#sh ip os int
2 Y/ v4 A! {7 c5 p+ DFastEthernet0/0 is up, line protocol is up : C+ Z. h: p7 K' P: W3 h& n
Internet Address 10.0.0.10/24, Area 0 5 X& R7 @4 {3 L+ W2 @0 T
Process ID 1, Router ID 10.0.0.10, Network Type BROADCAST, Cost: 10 g% p: x6 k* [* |; Z) e
Transmit Delay is 1 sec, State DR, Priority 1 ) N% E2 n2 K. a1 w2 @9 _; n
Designated Router (ID) 10.0.0.10, Interface address 10.0.0.107 J5 s5 S7 _- r" h
Backup Designated router (ID) 11.0.0.20, Interface address 10.0.0.215 Z/ `7 W( y( v* K) @0 L: k7 ~; z
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5- D8 N8 V$ s% G" H# N1 O- S
oob-resync timeout 40
8 H' a6 S' n& Q5 Z Hello due in 00:00:05
0 q/ o8 s# o' m Supports Link-local Signaling (LLS)
% d9 b3 ]+ G$ E/ a4 x/ `5 u1 f Index 1/1, flood queue length 0
% ]9 T) O6 f% c; `! q Next 0x0(0)/0x0(0)+ Y0 n d( B. V: f
Last flood scan length is 1, maximum is 1% ^1 m7 b8 C" f n3 x7 w' D
Last flood scan time is 0 msec, maximum is 0 msec7 Z, N+ O1 [4 d: a/ f8 J% A
Neighbor Count is 1, Adjacent neighbor count is 1
2 z' c- J( c* a1 v& K+ ` Adjacent with neighbor 11.0.0.20 (Backup Designated Router) Y% R( |9 ?6 w' T; l" n& ~3 W
Suppress hello for 0 neighbor(s)- ?1 X# Y! ~2 d: m# Y
2 G! V' \1 u+ W ^" g% A+ R! r) P9 }
R2# sh ip ospf int
# K4 k' N/ v( {" R- f5 _# kFastEthernet0/0 is up, line protocol is up
' O) g3 _; n6 @: [' A7 P. r Internet Address 11.0.0.20/24, Area 0
7 p1 K! p% G; z9 J+ I }9 V+ g Process ID 2, Router ID 11.0.0.20, Network Type BROADCAST, Cost: 10) [! _7 r2 _ X0 A+ I3 @. {3 p
Transmit Delay is 1 sec, State DR, Priority 1 7 u$ L8 `3 E+ l; u9 O
Designated Router (ID) 11.0.0.20, Interface address 11.0.0.200 y7 @6 t; s/ _+ q6 d! A. [
Backup Designated router (ID) 12.0.0.30, Interface address 11.0.0.31( a m: n1 ?1 A5 w$ ^
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 55 d. c" K- J& I8 X
oob-resync timeout 40
3 ]5 c' M4 F3 }( ?; T+ F Hello due in 00:00:07
+ E8 `( K' i7 k' I, }; | Supports Link-local Signaling (LLS)
0 L6 ~" }% d6 w! C1 i% ]' g# b Index 2/2, flood queue length 05 V1 t& Z y0 C9 G
Next 0x0(0)/0x0(0)
, x# L4 E) O9 Y. r/ _5 I$ p0 h4 K Last flood scan length is 1, maximum is 1' v% a7 f/ B5 f4 I
Last flood scan time is 0 msec, maximum is 0 msec+ ^6 O5 f- h, e; b2 r6 Y
Neighbor Count is 1, Adjacent neighbor count is 1
! Q3 c8 `8 U, e9 W+ |! F7 ]) H$ I Adjacent with neighbor 12.0.0.30 (Backup Designated Router)+ Q8 e8 Z2 [" W9 w: j/ P7 k- w8 ~
Suppress hello for 0 neighbor(s): @/ F8 X2 f/ V/ y( s, U8 ]
FastEthernet0/1 is up, line protocol is up
& \7 U4 ^5 O0 S, D {5 d' Z Internet Address 10.0.0.21/24, Area 0
6 L2 {" H) Z( q! M Process ID 2, Router ID 11.0.0.20, Network Type BROADCAST, Cost: 10" s- t H$ W$ U( N2 }# a# z* v* B
Transmit Delay is 1 sec, State BDR, Priority 1
2 l( q# @5 b; M* R; P Designated Router (ID) 10.0.0.10, Interface address 10.0.0.10; a# J3 A% l3 `# ]( H- _8 b
Backup Designated router (ID) 11.0.0.20, Interface address 10.0.0.21
/ f3 e* Z: r2 ^6 b9 L; [ Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5+ L% {; \; l9 t$ L4 i! ^& H
oob-resync timeout 403 |8 S( y0 F3 C2 E* w3 V0 ?
Hello due in 00:00:07
+ u, r4 T5 Y3 ?* k Supports Link-local Signaling (LLS): a! X& p: k* w8 E8 A& x
Index 1/1, flood queue length 0, I e+ J6 w) M1 D! b$ C( g
Next 0x0(0)/0x0(0)
# u( l. t8 p- Y0 v8 r. a+ Y) { r Last flood scan length is 1, maximum is 2
0 {+ Q9 X% P0 B/ Z Last flood scan time is 0 msec, maximum is 4 msec5 m6 W4 h$ X& r1 X; X" l
Neighbor Count is 1, Adjacent neighbor count is 1
0 @1 T) V5 d( m) V8 F( I5 i6 I! X Adjacent with neighbor 10.0.0.10 (Designated Router)
/ p. Z0 d5 A( R$ ?( ` Suppress hello for 0 neighbor(s)
7 a. I1 C2 j, H* \% ~' W
0 F2 W* m7 f5 ?2 ], H
$ V' E5 h. l, S% wR3#sh ip os int! K- B4 `1 B8 ]7 T
FastEthernet0/0 is up, line protocol is up - H+ N/ Z5 U% T$ K
Internet Address 12.0.0.30/24, Area 0 " g0 ]( w% @/ `( L3 ~! c0 \& j6 ^
Process ID 3, Router ID 12.0.0.30, Network Type BROADCAST, Cost: 10
+ Z% P& F( u/ L% y4 N Transmit Delay is 1 sec, State BDR, Priority 1
0 F! e2 T: j6 k) d9 V$ s Designated Router (ID) 13.0.0.40, Interface address 12.0.0.41
& p) }7 I5 G3 j! ~" q1 r Backup Designated router (ID) 12.0.0.30, Interface address 12.0.0.30
6 g2 U6 A2 f4 t! B T6 ] Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
. h+ b2 j" `/ H: M oob-resync timeout 40+ n) X5 T( v# ]0 o$ [' y
Hello due in 00:00:06
( B5 N v6 O- v! {4 V Supports Link-local Signaling (LLS)
1 o% Y3 _4 \* ~7 c9 p0 Z Index 2/2, flood queue length 04 {2 N5 ^0 ]$ F! q4 Y- X# G
Next 0x0(0)/0x0(0)2 b$ {) l) D" ~/ g8 f
Last flood scan length is 1, maximum is 1
- b1 u# b6 R9 r- p1 E; u Last flood scan time is 0 msec, maximum is 4 msec0 J. l4 J1 i1 A2 O1 q
Neighbor Count is 1, Adjacent neighbor count is 1 / u r ~$ O$ ?# a1 g
Adjacent with neighbor 13.0.0.40 (Designated Router)
5 D M) k+ D% t, r! B Suppress hello for 0 neighbor(s)
- g- e0 F3 v0 ~: Y' }. d7 g9 O3 XFastEthernet0/1 is up, line protocol is up
}( `( |! k) m Internet Address 11.0.0.31/24, Area 0 & \' H) g- _) d; i* t9 }
Process ID 3, Router ID 12.0.0.30, Network Type BROADCAST, Cost: 10
* {0 H7 j/ K# O Transmit Delay is 1 sec, State BDR, Priority 1
1 Y- d5 \( ]5 z0 r. t: ^ Designated Router (ID) 11.0.0.20, Interface address 11.0.0.20' I6 J, M2 i o6 n: e0 E
Backup Designated router (ID) 12.0.0.30, Interface address 11.0.0.31/ T6 r0 L U5 F t% S6 q) Z
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5; z. l! c* o" n3 F
oob-resync timeout 40
. i& m! c2 `& @8 V1 c" r4 q0 z' G Hello due in 00:00:07
. S# M: S T; X+ z2 l& o Supports Link-local Signaling (LLS)$ V8 l/ o& }2 B* a
Index 1/1, flood queue length 04 J5 c: L; F6 U3 k+ m; S
Next 0x0(0)/0x0(0)
) N) u$ y' { e2 u$ M: ?+ O6 n5 a Last flood scan length is 1, maximum is 39 ?& q( n- D6 a# u
Last flood scan time is 0 msec, maximum is 4 msec
. \+ T2 G2 X+ M e! d+ ?! s Neighbor Count is 1, Adjacent neighbor count is 1 " u3 {) d% l* P; L4 Z3 f1 V
Adjacent with neighbor 11.0.0.20 (Designated Router)" P/ Y2 v+ E! n* p+ x
Suppress hello for 0 neighbor(s)" Y# @! \2 {) p1 B
- R' y/ n9 q/ [0 h% i G$ P
# g( V' z0 n. T% N# cR4#sh ip os int+ a) `4 H ]6 F3 O2 Y! r
FastEthernet0/0 is up, line protocol is up
% r* i8 z! s6 j) n+ D& U0 u, | Internet Address 13.0.0.40/24, Area 0
3 \$ q n& l( p: V5 P$ H# n Process ID 4, Router ID 13.0.0.40, Network Type BROADCAST, Cost: 10
/ H! |" B- n( ^1 i Transmit Delay is 1 sec, State DR, Priority 1
O" R5 G P3 ~- U/ O& I Designated Router (ID) 13.0.0.40, Interface address 13.0.0.40" _% B+ K0 Z: z, ?9 q `" `/ F
Backup Designated router (ID) 13.0.0.51, Interface address 13.0.0.518 F# f H' }+ t3 c& g( x* k( J
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
+ f0 k7 n X* B# _* W oob-resync timeout 404 @2 t$ m! a; A
Hello due in 00:00:08
. v& i9 ?% R: B# @ U" Y) P( r: W" @ Supports Link-local Signaling (LLS)6 M( E* H% K+ z; K, O
Index 2/2, flood queue length 0
6 @( O5 |: M- s- A3 c! ~ Next 0x0(0)/0x0(0)
2 r5 ~& A6 f8 k4 e' S Last flood scan length is 1, maximum is 4
# k# V5 n2 I- h8 t, I Last flood scan time is 0 msec, maximum is 4 msec
7 j" J8 {( V% ?' j, {" s Neighbor Count is 1, Adjacent neighbor count is 1
0 D" g9 s2 k8 Q. T' ^: ~7 D Adjacent with neighbor 13.0.0.51 (Backup Designated Router)3 ^9 Z4 Z" J$ V9 a; h& R+ W
Suppress hello for 0 neighbor(s); g3 s8 q+ v9 V4 v
FastEthernet0/1 is up, line protocol is up ! E& d' E+ M5 Q* j
Internet Address 12.0.0.41/24, Area 0 0 o' B. L9 y# Z0 n6 s7 H
Process ID 4, Router ID 13.0.0.40, Network Type BROADCAST, Cost: 10$ G0 o/ r% r+ {6 n' v- x, k# @4 o
Transmit Delay is 1 sec, State DR, Priority 1 6 \( l$ v4 Y0 f+ t. x2 I4 \4 ~
Designated Router (ID) 13.0.0.40, Interface address 12.0.0.41
, N1 i- }, ~+ B* C# F Backup Designated router (ID) 12.0.0.30, Interface address 12.0.0.30
" F g' t1 v; G& R2 G) T Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5! t% Z# ^0 t2 G# w1 n# A& h' K! X5 Z
oob-resync timeout 406 J, N3 _5 r) M0 Q! w
Hello due in 00:00:02
2 p, k7 E' `& q& U8 n Supports Link-local Signaling (LLS)7 j/ G1 U) }4 e6 G1 `
Index 1/1, flood queue length 0, T/ z v# P$ d$ O, K' |; d
Next 0x0(0)/0x0(0): } ?) J' \/ k! k5 R6 S
Last flood scan length is 1, maximum is 12 i) U- k# N2 x9 C' C: U# r
Last flood scan time is 0 msec, maximum is 0 msec
" F" l$ ]' D7 f9 S Neighbor Count is 1, Adjacent neighbor count is 1
8 j7 K/ {' S% m4 b0 o% X* N' {8 q Adjacent with neighbor 12.0.0.30 (Backup Designated Router)6 T+ h( z& Y$ o0 V9 G
Suppress hello for 0 neighbor(s)
- p a! `' v; F: f+ S1 x5 c
$ t& _2 C# |* j) o* RR5#sh ip os int
6 j: T6 r+ T/ J2 ~( j8 X' sFastEthernet0/1 is up, line protocol is up
4 L$ @& L4 j8 f1 ]8 q) s, S Internet Address 13.0.0.51/24, Area 0 ; |! A% Z+ ~) k! s
Process ID 5, Router ID 13.0.0.51, Network Type BROADCAST, Cost: 10
1 | j- ~! t5 }* [+ Y' x, A Transmit Delay is 1 sec, State BDR, Priority 1 , n/ K" O J' p# a
Designated Router (ID) 13.0.0.40, Interface address 13.0.0.40
2 J- @9 Y# ~/ I! N Backup Designated router (ID) 13.0.0.51, Interface address 13.0.0.51
/ d9 R( P5 u# S5 x0 f Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
& R) f" g! B( w! x% [/ r oob-resync timeout 407 r2 c/ R% J& a+ A( l7 v) U j
Hello due in 00:00:08
9 k" }0 N& N3 m3 v- G0 N. D Supports Link-local Signaling (LLS)
8 G& f, R+ P4 x Index 1/1, flood queue length 0
$ o" C1 t8 U& D: `) n8 v Next 0x0(0)/0x0(0)
' v/ }8 r+ o4 u. v" ] Last flood scan length is 1, maximum is 1
r8 {3 y4 u+ y0 a" D Last flood scan time is 0 msec, maximum is 0 msec
8 \' f3 [8 Q# Y% e& Y& L Neighbor Count is 1, Adjacent neighbor count is 1 * P1 |' T: W3 N
Adjacent with neighbor 13.0.0.40 (Designated Router)
" z g1 u9 B' @, B# R; O Suppress hello for 0 neighbor(s)0 p) c! J7 h. {) l7 Z' T
4 b% X$ a/ z. q% I' @# I0 m. j g8 O p! ^
R1#SH IP Ospf neighbor
8 b8 t8 ~. p2 L1 D3 \! RNeighbor ID Pri State Dead Time Address Interface
9 k5 T3 `4 z' }. Z9 Z& o7 `8 P11.0.0.20 1 FULL/BDR 00:00:35 10.0.0.21 FastEthernet0/0) j! `+ ^2 F' z0 e( t- ~0 A
" V; F/ R) S9 {9 o/ u1 R0 ?0 D) V* B9 \
R2#sh ip os ne% P) k @" d9 n$ m. H$ a! N
Neighbor ID Pri State Dead Time Address Interface
- ]4 k: i2 B# f4 w2 t6 G. o7 o12.0.0.30 1 FULL/BDR 00:00:39 11.0.0.31 FastEthernet0/0
& v: C, | \$ `7 p& N( k6 e4 w f10.0.0.10 1 FULL/DR 00:00:35 10.0.0.10 FastEthernet0/1! S( W! z/ z0 Q) y
) A, D) I& |. R2 v. o3 k7 f
- Q) s; y( d$ Q: mR3#sh ip os ne
0 u. t5 P( Q. l0 v2 Z9 `Neighbor ID Pri State Dead Time Address Interface
g0 n R; Z( }) t13.0.0.40 1 FULL/DR 00:00:35 12.0.0.41 FastEthernet0/0
3 p. x" W$ U+ X$ M/ l ]11.0.0.20 1 FULL/DR 00:00:33 11.0.0.20 FastEthernet0/1$ Q* p8 K6 p: ?/ O! f
/ a7 A& Z# y& K {9 S& _( ^( Y& Z* H. o5 I
R4#sh ip os ne
+ ^% r/ Q) S) O( U) B% @0 G' G. oNeighbor ID Pri State Dead Time Address Interface% p5 b( j- ^+ u3 I' E9 I: y+ n! ?
13.0.0.51 1 FULL/BDR 00:00:34 13.0.0.51 FastEthernet0/0
: C# x: f% b t* S" i, s8 Q9 O r12.0.0.30 1 FULL/BDR 00:00:38 12.0.0.30 FastEthernet0/14 h" g: p# z0 x6 ~
% Q3 [/ V1 p2 u7 \# M C0 e5 f0 g
R5#sh ip os ne, T: q( y1 [' ^! o* N) z9 |9 |* A, J
Neighbor ID Pri State Dead Time Address Interface
: Q* P4 V1 C1 n* i) `13.0.0.40 1 FULL/DR 00:00:31 13.0.0.40 FastEthernet0/1& T3 L, ?" u- @: k6 c
' I/ u, \7 V) \: ~+ R0 Q
# q( y6 L2 S1 G5 q) B1 N- L) r上面这是各个路由SHOW出来的信息。
# p, G6 k3 @2 d& z1.按照我拓朴图上画的，五台路由放一起看，这种以太网的网络是属于广播型网络还是非广播多路访问网络？ 是广播型或者非广播多路访问网络，可否解释下为什么？ 谢谢 这问题问的自己都觉的白！
% P1 r8 e8 y& D$ n2.为什么五台路由会选举出四台DR和四台BDR， 不是应该只有一台DR和一台BDR，其它的全是DROTHER吗？
8 g- \# y5 ]/ B' N, K就这两个疑问。 请各位不吝赐教！》。谢谢了。 困惑好久了。 |
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