Huawei ve Cisco router cihazları arasında BGP konfigürasyonu

Huawei ve Cisco router cihazları arasında BGP konfigürasyonu

Bu lab da cisco router ile huawei router arasında BGP konfigürasyonunun nasıl olduğunu gösterecegim.

Huawei cihazını isimlendirelim ve ip addressini oluşturalım.

<Huawei>system-view Enter system view, return user view with Ctrl+Z. [Huawei]sysname huawei-R1 [huawei-R1]interface GigabitEthernet 0/0/0 [huawei-R1-GigabitEthernet0/0/0]ip address 192.168.1.1 24 [huawei-R1-GigabitEthernet0/0/0]interface loopback0 [huawei-R1-LoopBack0]ip address 1.1.1.1 24 [huawei-R1-LoopBack0]interface loopback10 [huawei-R1-LoopBack10]ip address 10.10.10.10 32

Cisco cihazını isimlendirelim ve ip addressini oluşturalım.

Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#hostname cisco-R2 cisco-R2(config)#interface gigabitEthernet 0/0 cisco-R2(config-if)#ip address 192.168.1.2 255.255.255.0 cisco-R2(config-if)#no sh cisco-R2(config-if)#interface loopback0 cisco-R2(config-if)#ip address 2.2.2.2 255.255.255.0

Cihazların haberleşebilmeleri için static route yazalım.

[huawei-R1]ip route-static 2.2.2.2 255.255.255.255 192.168.1.2

cisco-R2(config)#ip route 1.1.1.1 255.255.255.255 192.168.1.1

Fiziksel cihazlarımızın ip addresslerini kullanarak dogrudan BGP bağlantılarımızı kuralım.

[huawei-R1]bgp 100 [huawei-R1-bgp]peer 2.2.2.2 as-number 200 [huawei-R1-bgp]peer 2.2.2.2 ebgp-max-hop 2 [huawei-R1-bgp]peer 2.2.2.2 connect-interface LoopBack 0 [huawei-R1-bgp]network 10.10.10.10 32

cisco-R2(config)#router bgp 200 cisco-R2(config-router)#no synchronization cisco-R2(config-router)#bgp log-neighbor-changes cisco-R2(config-router)#network 2.2.2.2 mask 255.255.255.255 cisco-R2(config-router)#neighbor 1.1.1.1 remote-as 100 cisco-R2(config-router)#neighbor 1.1.1.1 ebgp-multihop 2 cisco-R2(config-router)#neighbor 1.1.1.1 update-source loopback 0 cisco-R2(config-router)#no auto-summary

Konfigürasyonu oluşturduktan sonra BGPyi kontrol edelim.

<huawei-R1>display bgp peer BGP local router ID : 192.168.1.1 Local AS number : 100 Total number of peers : 1 Peers in established state : 1 Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv 2.2.2.2 4 200 10 7 0 00:04:44 Established 1

cisco-R2#sh ip bgp BGP table version is 3, local router ID is 2.2.2.2 Status codes: s suppressed, d damped, h history, * valid, > best, i – internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, Origin codes: i – IGP, e – EGP, ? – incomplete RPKI validation codes: V valid, I invalid, N Not found Network Next Hop Metric LocPrf Weight Path *> 1.1.1.1/32 192.168.1.1 0 32768 i *> 10.10.10.10/32 1.1.1.1 0 0 100 i

İki cihazımızdada BGP komşulukları kurulmuş durumdadır.

AS-PATH özelliğini görebilmek için cihazların BGP route tablolarına bakalım.

<huawei-R1>display bgp routing-table BGP Local router ID is 192.168.1.1 Status codes: * – valid, > – best, d – damped, h – history, i – internal, s – suppressed, S – Stale Origin : i – IGP, e – EGP, ? – incomplete Total Number of Routes: 2 Network NextHop MED LocPrf PrefVal Path/Ogn *> 1.1.1.1/32 2.2.2.2 0 0 200i *> 10.10.10.10/32 0.0.0.0 0 0 i

cisco-R2#sh ip route bgp Codes: L – local, C – connected, S – static, R – RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2 E1 – OSPF external type 1, E2 – OSPF external type 2 i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS level-2 ia – IS-IS inter area, * – candidate default, U – per-user static route o – ODR, P – periodic downloaded static route, H – NHRP, l – LISP + – replicated route, % – next hop override Gateway of last resort is not set 10.0.0.0/32 is subnetted, 1 subnets B 10.10.10.10 [20/0] via 1.1.1.1, 00:08:12

Bgp bilgilerini görüntülemek için aşağıdaki komutları kullanalım.

[huawei-R1]display bgp peer BGP local router ID : 192.168.1.1 Local AS number : 100 Total number of peers : 1 Peers in established state : 1 Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv 2.2.2.2 4 200 130 117 0 01:54:36 Established 1

cisco-R2#sh ip bgp summary BGP router identifier 2.2.2.2, local AS number 200 BGP table version is 3, main routing table version 3 2 network entries using 296 bytes of memory 2 path entries using 128 bytes of memory 2/2 BGP path/bestpath attribute entries using 272 bytes of memory 1 BGP AS-PATH entries using 24 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 720 total bytes of memory BGP activity 2/0 prefixes, 2/0 paths, scan interval 60 secs Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 1.1.1.1 4 100 13 16 3 0 0 00:10:39 1

Son olarak cihazlarımızın ekran çıktılarına bakalım.

<huawei-R1>display current-configuration # sysname huawei-R1 # interface GigabitEthernet0/0/0 ip address 192.168.1.1 255.255.255.0 # interface LoopBack0 ip address 1.1.1.1 255.255.255.0 # interface LoopBack10 ip address 10.10.10.10 255.255.255.255 # bgp 100 peer 2.2.2.2 as-number 200 peer 2.2.2.2 ebgp-max-hop 2 peer 2.2.2.2 connect-interface LoopBack0 # ipv4-family unicast undo synchronization network 10.10.10.10 255.255.255.255 peer 2.2.2.2 enable # ip route-static 2.2.2.2 255.255.255.255 192.168.1.2 # return

cisco-R2# show running-config ! hostname cisco-R2 ! interface Loopback0 ip address 2.2.2.2 255.255.255.0 ! interface GigabitEthernet0/0 ip address 192.168.1.2 255.255.255.0 duplex auto speed auto ! router bgp 200 bgp log-neighbor-changes network 1.1.1.1 mask 255.255.255.255 network 2.2.2.2 mask 255.255.255.255 neighbor 1.1.1.1 remote-as 100 neighbor 1.1.1.1 ebgp-multihop 2 neighbor 1.1.1.1 update-source Loopback0 ! ip route 1.1.1.1 255.255.255.255 192.168.1.1 ! end