|
a
! [8 A( o( b5 |R1和R2和R3死活都建立不了iBGP邻居，检查很久，OSPF也建立成功邻居了，还是都没找到原因，R2和R3和R4都可以建立eBGP邻居& j5 s R, G7 C7 a* H8 w
R1的配置：
7 [& n6 h: i7 u2 a0 m: k$ T; RR1#sh run | se router7 P0 l, k& g0 x" G
router ospf 1
! u' H4 T$ S0 a3 v% y router-id 1.1.1.1
4 o$ D+ d( ^7 Q/ {9 ]: k, t network 1.1.1.0 0.0.0.0 area 0
* y$ H7 M! a& s. h; C8 l network 10.1.123.1 0.0.0.0 area 04 u0 P) |9 {8 d: w$ ]8 p6 c1 Z" H: t
router bgp 123
/ w" }( P2 ~) w8 J bgp router-id 1.1.1.1) i4 f. C: h: F! \* C
bgp log-neighbor-changes6 C- s6 T, v9 f8 N4 ` t
network 11.11.11.0 mask 255.255.255.0
$ L' ^4 j; A( m) @3 I, P8 E* d neighbor 2.2.2.2 remote-as 123
' t4 y" s4 h* c/ I Z neighbor 2.2.2.2 update-source Loopback0
# O. J$ L% _% F. z5 x neighbor 3.3.3.3 remote-as 123( B+ M% k& i. X
neighbor 3.3.3.3 update-source Loopback0
) F2 C( r# f/ F5 I& B% s5 \( A1 Q" p
. q- Y" b; d( y------------------------------------------------------
% E9 @# Y0 p" m @R2配置：
( W& z& \" V" W. p' k! n9 WR2#sh run | se router* F/ r0 ^% o+ W7 T
router ospf 16 k+ B2 s8 S3 @7 O- m5 y
router-id 2.2.2.2
' p5 B! j9 y8 Y/ X9 G! Z network 2.2.2.0 0.0.0.0 area 0
. Y1 n' j8 h- s% `" ^- U network 10.1.24.2 0.0.0.0 area 0* M4 }, t( m$ h; a6 D; R
network 10.1.123.2 0.0.0.0 area 0
0 b- c6 O% z, A7 ]! e: |. N7 D9 X2 Krouter bgp 123* y i6 W- B+ @, E
bgp router-id 2.2.2.2$ w8 P) M8 C7 K8 b0 O0 Y
bgp log-neighbor-changes
S, w S" e7 _# J4 s neighbor 1.1.1.1 remote-as 123
& r ^6 X3 v3 f4 ^2 w, ^) P neighbor 1.1.1.1 update-source Loopback0- b, O+ L" x; G8 r
neighbor 10.1.24.4 remote-as 400
' c6 k L3 I, x, O1 V, i' b
" S: S' p. Y8 G& Z0 s8 u6 \" Y3 Y------------------------------------------------------ W. w: }% b, k
R3#sh run | se router5 L# a" |8 R3 f
router ospf 1
. _* o! M" u+ n8 M8 j, a; I router-id 3.3.3.33 J, q, P. Y6 G% Z+ I0 g3 s
network 3.3.3.3 0.0.0.0 area 0
. f6 s3 Z8 _3 P$ F. s; o' h l* @ network 10.1.34.3 0.0.0.0 area 0' k3 e M) v) ?/ r2 |, r7 ]. E
network 10.1.123.3 0.0.0.0 area 0% L+ Q2 z8 L2 o2 ~% R* @
router bgp 123 V) |4 k9 f% ?: U' r
bgp router-id 3.3.3.3
! R; o# l( L* p bgp log-neighbor-changes
+ J" A5 ~" Z' e5 X* V- @+ @0 s neighbor 1.1.1.1 remote-as 123
5 H' o9 w: ]' F6 g+ O neighbor 1.1.1.1 update-source Loopback0
' n: `+ q/ e7 @$ w9 E! O neighbor 10.1.34.4 remote-as 400
5 f6 p/ F J6 m# b+ w
2 Z$ l* b0 D2 X1 ~-------------------------------------------------8 v1 N4 X7 x ~/ ]. Y
R1的 sh ip bgp summny
" k. d' b2 @7 j4 n1 WR1#sh ip bgp s
# M2 P: v5 O) z* ^! ]BGP router identifier 1.1.1.1, local AS number 123 s# X; O' a C) u: F( Q
BGP table version is 1, main routing table version 1" s9 E$ Z. m. g4 J7 d* b2 r* ?- E6 \
1 network entries using 144 bytes of memory
/ a/ U/ |2 J! b1 Q" u1 path entries using 84 bytes of memory
+ M$ s" B7 F4 @5 t$ R1/0 BGP path/bestpath attribute entries using 160 bytes of memory
7 D! ~6 h/ v) v) O8 w0 BGP route-map cache entries using 0 bytes of memory6 m; b& }3 O5 W9 J
0 BGP filter-list cache entries using 0 bytes of memory3 g6 i3 T6 P0 f
BGP using 388 total bytes of memory
/ ~' x9 x( v6 { e) f) LBGP activity 1/0 prefixes, 1/0 paths, scan interval 60 secs
- C6 t& x9 D4 P, v7 N3 f; M6 e0 q3 G9 k' t
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
: J( A6 X5 v. B S1 _- {2.2.2.2 4 123 0 0 1 0 0 never Idle! \# u% \0 S; ]1 A9 w/ P. }
3.3.3.3 4 123 0 0 1 0 0 never Active
7 [5 a# j% b( F( t9 G% ~& t5 g* i! K: v
------------------------------------------------------------------------------------------------------" B; M0 K. l$ D/ d7 [5 p& H' @
R2的sh ip bgp summny
u( @8 [- L b) _. a( BR2#sh ip bgp s
* @: o5 m. B9 U' s. k$ rBGP router identifier 2.2.2.2, local AS number 123( F1 w' X% x6 N4 T
BGP table version is 2, main routing table version 2, o6 A- d# M$ k! Q* o$ x
1 network entries using 144 bytes of memory0 G: y$ i* I U
1 path entries using 84 bytes of memory* m0 @; O" M8 X! y* f1 U! L9 w# n
1/1 BGP path/bestpath attribute entries using 160 bytes of memory3 s- @# ^4 r4 j+ A) K3 Y) P- p _
1 BGP AS-PATH entries using 24 bytes of memory
& S. s: T/ ^% W: d0 BGP route-map cache entries using 0 bytes of memory4 G$ _8 N) M/ l' a) ?" T8 B
0 BGP filter-list cache entries using 0 bytes of memory
/ p' X+ A: @. GBGP using 412 total bytes of memory# R" K) s) O2 D# {' R
BGP activity 1/0 prefixes, 1/0 paths, scan interval 60 secs1 ~! J3 G! g; U. M- s, Q
" B+ G6 R; z& N2 U9 p" e, wNeighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
. [9 n1 s1 _ K; c5 C6 ]1.1.1.1 4 123 0 0 1 0 0 never Idle
- [0 E+ y* `' D10.1.24.4 4 400 8 7 2 0 0 00:04:08 1
4 _! z0 `& H- v- q; A. c
2 P/ B8 O3 ?. i- T--------------------------------------------------------------------------------------------------------; q: B, _" D3 J8 G" z, ]) @7 c
R3的 sh ip bgp summny1 G5 Q* g0 M% M5 l$ E1 v2 r, U
R3#sh ip bgp s ?& F6 u7 Z' |4 t( ?
BGP router identifier 3.3.3.3, local AS number 123
5 r1 y; E* U* k+ {BGP table version is 2, main routing table version 2# T% g; T: U5 Y; {( ^) ^- u
1 network entries using 144 bytes of memory) z9 E. `2 ^3 |# F) w) |1 n3 W
1 path entries using 84 bytes of memory+ i! a* D6 Y0 b9 ~! S* `
1/1 BGP path/bestpath attribute entries using 160 bytes of memory
! I2 n1 k0 j5 p: Q- `0 E1 BGP AS-PATH entries using 24 bytes of memory, \: Z8 m2 I' |
0 BGP route-map cache entries using 0 bytes of memory& J# Z6 Z& g4 Q U% b* d: y
0 BGP filter-list cache entries using 0 bytes of memory
) P. g& t" G$ T/ h9 u uBGP using 412 total bytes of memory) |# U! }2 \% W' b/ a% K% E2 g
BGP activity 1/0 prefixes, 1/0 paths, scan interval 60 secs
& t1 A- Y. `/ P! @5 t& t0 n. I
1 X6 [6 Z4 [: `Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd! V; [4 Y7 R1 T7 }: y9 C
1.1.1.1 4 123 0 0 1 0 0 never Idle9 o+ e# h$ R- F) o( K, {
10.1.34.4 4 400 9 8 2 0 0 00:05:11 1
+ q% d' c0 _) G; Y+ y) N7 \! j, l! z: x
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