BGP试验笔记.docx
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BGP试验笔记.docx
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BGP试验笔记
试验内容:
1、BGP实现网络互联
2、BGP提取路由
3、Next-hop-self命令
4、BGP同步
5、BGP汇总
1、BGP实现网络互联
Router#configt
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Router(config)#noipdomain-lookup
Router(config)#hostnamer2
r2(config)#intloopback0
r2(config-if)#ipaddress8.8.8.2255.255.255.255
r2(config-if)#exit
r2(config)#inte0/0
r2(config-if)#ipaddress1.1.1.2255.255.255.252
r2(config-if)#noshut
r2(config-if)#exit
r2(config)#inte0
*Mar100:
03:
52.143:
%LINK-3-UPDOWN:
InterfaceEthernet0/0,changedstatetoup
*Mar100:
03:
53.143:
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceEthernet0/0,changedstatetoup/1
r2(config-if)#ipaddress1.1.1.5255.255.255.252
r2(config-if)#noshut
*Mar100:
04:
25.975:
%LINK-3-UPDOWN:
InterfaceEthernet0/1,changedstatetoup
*Mar100:
04:
26.975:
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceEthernet0/1,changedstatetoup
r2(config-if)#exit
r2(config)#routerbgp2
r2(config-router)#bgprouter-id8.8.8.2
r2(config-router)#neighbor8.8.8.3remote-as2
r2(config-router)#neighbor8.8.8.3update-sourceloopback0
r2(config-router)#neighbor1.1.1.10remote-as2
r2(config-router)#neighbor1.1.1.1remote-as1
r2(config)#routerospf100
r2(config-router)#network0.0.0.0255.255.255.255area0
Router#configt
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Router(config)#noipdomain-lookup
Router(config)#hostnamer3
r3(config)#intloopback0
r3(config-if)#ipaddress8.8.8.3255.255.255.255
r3(config-if)#exit
r3(config)#inte0/1
r3(config-if)#ipaddress1.1.1.6255.255.255.252
r3(config-if)#noshut
r3(config-if)#exit
r3(config)#inte0/
*Mar100:
08:
50.855:
%LINK-3-UPDOWN:
InterfaceEthernet0/1,changedstatetoup
*Mar100:
08:
51.855:
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceEthernet0/1,changedstatetoup0
r3(config-if)#ipaddress1.1.1.9255.255.255.252
r3(config-if)#noshut
r3(config-if)#exit
*Mar100:
09:
16.755:
%LINK-3-UPDOWN:
InterfaceEthernet0/0,changedstatetoup
*Mar100:
09:
17.755:
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceEthernet0/0,changedstatetou
r3(config)#routerbgp2
r3(config-router)#bgprouter-id8.8.8.3
r3(config-router)#neighbor8.8.8.2remote-as2
r3(config-router)#neighbor8.8.8.2update-sourceloopback0
r3(config-router)#neighbor1.1.1.10remote-as2
*Mar100:
14:
20.415:
%BGP-5-ADJCHANGE:
neighbor1.1.1.10Up
r3(config-router)#^Z
r3#shipbgpsummary
BGProuteridentifier8.8.8.3,localASnumber2
BGPtableversionis1,mainroutingtableversion1
NeighborVASMsgRcvdMsgSentTblVerInQOutQUp/DownState/PfxRcd
1.1.1.10424400000:
01:
180
8.8.8.24200000neverActive
r3#configt
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
r3(config)#routerospf100
r3(config-router)#network0.0.0.0255.255.255.255area0
Router#configt
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Router(config)#noipdomain-lookup
Router(config)#hostnamer4
r4(config)#routerbgp2
r4(config-router)#exit
r4(config)#intloopback0
r4(config-if)#ipaddress8.8.8.4255.255.255.255
r4(config-if)#exit
r4(config)#inte0/0
r4(config-if)#ipaddress1.1.1.10255.255.255.252
r4(config-if)#noshut
r4(config-if)#exit
r4(config)#inte
*Mar100:
12:
36.119:
%LINK-3-UPDOWN:
InterfaceEthernet0/0,changedstatetoup
*Mar100:
12:
37.119:
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceEthernet0/0,changedstatetoup0/1
r4(config-if)#ipaddress1.1.1.13255.255.255.252
r4(config-if)#exit
r4(config)#routerbgp2
r4(config-router)#bgprouter-id8.8.8.4
r4(config-router)#neighbor1.1.1.5remote-as2
r4(config-router)#neighbor1.1.1.9remote-as2
r4(config-router)#neighbor1.1.1.14remote-as3
r4(config-router)#exit
r4(config)#routerospf100
r4(config-router)#network1.1.1.100.0.0.0area0
r4(config-router)#network1.1.1.100.0.0.0area0
*Mar100:
19:
50.663:
%OSPF-5-ADJCHG:
Process100,Nbr8.8.8.3onEthernet0/0fromLOADINGtoFULL,LoadingDone
r4(config-router)#network1.1.1.130.0.0.0area0
2、BGP提取路由
r4(config)#routerbgp2
r4(config-router)#network8.8.8.4mask255.255.255.255
r2#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
1.0.0.0/30issubnetted,3subnets
C1.1.1.0isdirectlyconnected,Ethernet0/0
C1.1.1.4isdirectlyconnected,Ethernet0/1
O1.1.1.8[110/20]via1.1.1.6,00:
52:
52,Ethernet0/1
8.0.0.0/32issubnetted,3subnets
C8.8.8.2isdirectlyconnected,Loopback0
O8.8.8.3[110/11]via1.1.1.6,00:
52:
52,Ethernet0/1
B8.8.8.4[200/0]via1.1.1.10,00:
00:
30
r2#ping8.8.8.4
Typeescapesequencetoabort.
Sending5,100-byteICMPEchosto8.8.8.4,timeoutis2seconds:
!
!
!
!
!
r2#shipbgp
BGPtableversionis3,localrouterIDis8.8.8.2
Statuscodes:
ssuppressed,ddamped,hhistory,*valid,>best,i-internal,
rRIB-failure,SStale
Origincodes:
i-IGP,e-EGP,?
-incomplete
NetworkNextHopMetricLocPrfWeightPath
*>i8.8.8.4/321.1.1.1001000i
r2(config)#routerbgp2
r2(config-router)#network1.1.1.0mask255.255.255.252
r3(config)#routerbgp2
r3(config-router)#network1.1.1.8mask255.255.255.252
r3(config-router)#network8.8.8.3mask255.255.255.255
r4(config)#routerbgp2
r4(config-router)#network1.1.1.12mask255.255.255.252
Router(config)#hostnamer5
r5(config)#noipdomain-lookup
r5(config)#intloopback0
r5(config-if)#ipaddress8.8.8.5255.255.255.255
r5(config-if)#exit
r5(config)#inte0/1
r5(config-if)#ipaddress1.1.1.14255.255.255.252
r5(config-if)#noshut
r5(config-if)#exit
r5(config)#routerbgp3
r5(config-router)#bgprouter-id8.8.8.5
r5(config-router)#neighbor1.1.1.13remote-as2
r5(config-router)#network8.8.8.5mask255.255.255.255
r5#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
1.0.0.0/30issubnetted,4subnets
B1.1.1.0[20/0]via1.1.1.13,00:
00:
09
B1.1.1.4[20/0]via1.1.1.13,00:
04:
22
B1.1.1.8[20/0]via1.1.1.13,00:
04:
22
C1.1.1.12isdirectlyconnected,Ethernet0/1
8.0.0.0/32issubnetted,5subnets
B8.8.8.1[20/0]via1.1.1.13,00:
04:
22
B8.8.8.2[20/0]via1.1.1.13,00:
04:
22
B8.8.8.3[20/0]via1.1.1.13,00:
04:
22
B8.8.8.4[20/0]via1.1.1.13,00:
04:
22
C8.8.8.5isdirectlyconnected,Loopback0
r5#ping8.8.8.1
Typeescapesequencetoabort.
Sending5,100-byteICMPEchosto8.8.8.1,timeoutis2seconds:
!
!
!
!
!
Successrateis100percent(5/5),round-tripmin/avg/max=120/154/244ms
3、Next-hop-self命令
r4#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
1.0.0.0/30issubnetted,4subnets
O1.1.1.0[110/30]via1.1.1.9,00:
20:
02,Ethernet0/0
O1.1.1.4[110/20]via1.1.1.9,00:
20:
02,Ethernet0/0
C1.1.1.8isdirectlyconnected,Ethernet0/0
C1.1.1.12isdirectlyconnected,Ethernet0/1
8.0.0.0/32issubnetted,5subnets
B8.8.8.1[200/0]via1.1.1.1,00:
50:
31
O8.8.8.2[110/21]via1.1.1.9,00:
20:
02,Ethernet0/0
O8.8.8.3[110/11]via1.1.1.9,00:
20:
02,Ethernet0/0
C8.8.8.4isdirectlyconnected,Loopback0
B8.8.8.5[20/0]via1.1.1.14,00:
03:
27
r4#shipbgp
BGPtableversionis17,localrouterIDis8.8.8.4
Statuscodes:
ssuppressed,ddamped,hhistory,*valid,>best,i-internal,
rRIB-failure,SStale
Origincodes:
i-IGP,e-EGP,?
-incomplete
NetworkNextHopMetricLocPrfWeightPath
r>i1.1.1.0/301.1.1.501000i
r>i1.1.1.4/301.1.1.501000i
r>i1.1.1.8/301.1.1.901000i
*>1.1.1.12/300.0.0.0032768i
*>i8.8.8.1/321.1.1.1010001i
r>i8.8.8.2/321.1.1.501000i
r>i8.8.8.3/321.1.1.901000i
*>8.8.8.4/320.0.0.0032768i
*>8.8.8.5/321.1.1.14003i
好多r开头的?
?
r2(config)#routerbgp2
r2(config-router)#neighbor8.8.8.3next-hop-self
r2(config-router)#neighbor1.1.1.10next-hop-self
r2(config-router)#^Z
r2#clearipbgp*softout
r4#shipbgp
BGPtableversionis18,localrouterIDis8.8.8.4
Statuscodes:
ssuppressed,ddamped,hhistory,*valid,>best,i-internal,
rRIB-failure,SStale
Origincodes:
i-IGP,e-EGP,?
-incomplete
NetworkNextHopMetricLocPrfWeightPath
r>i1.1.1.0/301.1.1.501000i
r>i1.1.1.4/301.1.1.501000i
r>i1.1.1.8/301.1.1.901000i
*>1.1.1.12/300.0.0.0032768i
*>i8.8.8.1/321.1.1.5010001i
r>i8.8.8.2/321.1.1.501000i
r>i8.8.8.3/321.1.1.901000i
*>8.8.8.4/320.0.0.0032768i
*>8.8.8.5/321.1.1.14003i
r4#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel
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