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RyuBGPSpeakerを活用したOpenFlow簡易ルータを試してみた
1.
RyuBGPSpeakerを 活用したOpenFlow簡易ルータ を試してみた 2014.12.24 @ttsubo 1
2.
RyuBGPSpeakerは、BGPによるダイナミック ルーティングが動作可能だが、データプレーンは 未対応なので、実環境には適用できません。 OpenFlow簡易ルータを自作して、 BGP/OpenFlowと連携させてみた 2
3.
First Step.. RouterBOARDをOpenFlow化させ、RyuBGPSpeakerで 学習したPrefixをFlow Tableに注入してみる。 internet OpenFlow スイッチ Ryuコントローラ BGP Message OpenFlow Message Quagga1
Quagga2 3
4.
OpenflowRouter RouterController REST-IF data SimpleRouter WSGI Application Simple BGPSpeaker PortTable ArpTable RoutingTable PortStats FlowStats SimpleMonitor RyuApp FlowTable OpenFlowスイッチ (OpenvSwitch) BGPルータ (Quagga) OpenFlow Message BGP Message OpenFlowチャネルBGPチャネル NorthBound 4
5.
確かに、このBGPネットワーク構成で、 期待どおりに動作したのだが.... 5
6.
192.168.200.1 OpenFlow チャネル 192.168.201.1 Ryuコントローラ 192.168.200.100 192.168.201.100AS:65001 この構成の課題は、BGP Peer数が増えるごと に、RyuコントローラとOpenFlowスイッチ間 のケーブル結線も増えてしまう。 AS:65002 AS:65002 (固定) Port1
Port2 BGP チャネル .... 6
7.
LinuxBox上にOpenFlowスイッチとRyuコントローラを 同居させて、LinuxBox内部インターフェスで繋げてみる。 Second Step.. internet 192.168.100.1 Quagga1 Quagga3 Quagga2 OVS1 OVS2 OVS3 AS65001 AS65002 192.168.100.0/24
192.168.102.0/24 192.168.102.1 7
8.
internet 192.168.100.1 Quagga1 Quagga3 Quagga2 OVS1 OVS2 OVS3 192.168.102.1 iBGP eBGP eBGP iBGP iBGP iBGP AS65001 AS65002 192.168.100.0/24 192.168.102.0/24 BGPルータ間でBGP経路伝搬させて… BGPネットワーク面を経由してinternetに繋いでみる 8
9.
internet 192.168.100.1 Quagga1 Quagga3 Quagga2 OVS1 OVS2 OVS3 192.168.102.1 iBGP eBGP iBGP iBGP iBGP AS65001 AS65002 192.168.100.0/24 192.168.102.0/24 万一、BGPネットワーク面の途中区間で通信断が発生し ても、適切に通信経路を 回させてみる Down 9
10.
実際に、ネット通信が可能であり、途中区間で通信断が 発生しても、約1分程度で回復できた 10
11.
Quagga 1 Quagga 2 OVS1 OVS2 AS65001 192.168.100.1/24 MED100 MED200 OVS3 Quagga 3 AS65002 root@Quagga-3:~# ping 192.168.100.1
PING 192.168.100.1 (192.168.100.1): 56 data bytes 64 bytes from 192.168.100.1: seq=0 ttl=254 time=1.999 ms 64 bytes from 192.168.100.1: seq=1 ttl=254 time=1.344 ms 64 bytes from 192.168.100.1: seq=2 ttl=254 time=1.272 ms 64 bytes from 192.168.100.1: seq=3 ttl=254 time=1.241 ms 64 bytes from 192.168.100.1: seq=4 ttl=254 time=1.217 ms 64 bytes from 192.168.100.1: seq=60 ttl=253 time=2.081 ms 64 bytes from 192.168.100.1: seq=61 ttl=253 time=1.414 ms 64 bytes from 192.168.100.1: seq=62 ttl=253 time=1.172 ms 64 bytes from 192.168.100.1: seq=63 ttl=253 time=1.364 ms 64 bytes from 192.168.100.1: seq=64 ttl=253 time=1.333 ms 64 bytes from 192.168.100.1: seq=65 ttl=253 time=1.323 ms ^C --- 192.168.100.1 ping statistics --- 66 packets transmitted, 11 packets received, 83% packet loss round-trip min/avg/max = 1.172/1.432/2.081 ms 192.168.101.1/24 Down Pingも途中で通信断になったが、約1分後に回復できた 11
12.
OpenFlow簡易ルータは、 Githubにて公開してます。 https://github.com/ttsubo/simpleRouter/tree/v0.3 12
13.
以下、参考 13
14.
Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Status codes: *
valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path *> 192.168.102.0/24 None 172.16.201.1 Only Path 100 i *> 172.16.103.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 172.16.102.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 192.168.202.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 192.168.100.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 0.0.0.0/0 None 192.168.201.1 Only Path 100 65001 ? *> 10.0.0.2/32 None 192.168.201.1 Only Path 100 65001 ? *> 172.16.201.101/32 None 172.16.201.1 Only Path 100 i *> 192.168.101.1/32 None 172.16.201.1 Only Path 100 i *> 172.16.202.101/32 None 172.16.201.1 Only Path 100 i *> 172.16.104.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 172.16.101.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 192.168.201.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 192.168.0.0/24 None 192.168.201.1 Only Path 100 65001 ? *> 10.0.0.1/32 None 192.168.201.1 Only Path 100 Show_rib_ipv4 in OVS1 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 14
15.
http:/http http://www.nexcom-jp.com/FilData/getimg/5712caac-3256-4d8b- b0ce-9c4ed262bed2://www.n http://www.nexcom-jp.com/FilData/getimg/ 5712caac-3256-4d8b-b0ce-9c
http://www.nexcom-jp.com/FilData/getimg/ 5712caac-3256-4d8b-b0ce-9c4ed262bed2 4ed262bed2 excom-jp.com/FilData/ getimg/5712caac-3256-4d8b-b0ce-9c4ed262bed2/www.nexcom-jp.com/FilData/ getimg/5712caac-3256-4d8b-b0ce-9c4ed262bed2 Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Status codes: * valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path * 192.168.201.0/24 None 192.168.202.1 200 65001 ? *> None 172.16.203.1 MED 100 200 65001 ? * 0.0.0.0/0 None 192.168.202.1 200 65001 ? *> None 172.16.203.1 MED 100 200 65001 ? * 172.16.102.0/24 None 192.168.202.1 200 65001 ? *> None 172.16.203.1 MED 100 200 65001 ? * 192.168.100.0/24 None 192.168.202.1 200 65001 ? *> None 172.16.203.1 MED 100 200 65001 ? * 10.0.0.1/32 None 192.168.202.1 200 65001 ? *> None 172.16.203.1 MED 100 200 65001 ? …(snip) *> 192.168.102.0/24 None 172.16.202.1 Only Path 100 i *> 192.168.101.1/32 None 172.16.202.1 Only Path 100 i *> 172.16.202.101/32 None 172.16.202.1 Only Path 100 i *> 172.16.201.101/32 None 172.16.202.1 Only Path 100 i Show_rib_ipv4 in OVS2 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 15
16.
Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Status codes: *
valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path *> 192.168.0.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 172.16.202.101/32 None 0.0.0.0 Only Path i *> 192.168.201.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 10.0.0.1/32 None 172.16.201.101 Only Path 100 300 65001 ? *> 172.16.104.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 172.16.101.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 192.168.102.0/24 None 192.168.101.1 Only Path i *> 172.16.201.101/32 None 0.0.0.0 Only Path i *> 192.168.100.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 10.0.0.2/32 None 172.16.201.101 Only Path 100 300 65001 ? *> 192.168.101.1/32 None 0.0.0.0 Only Path i *> 192.168.202.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 172.16.103.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 172.16.102.0/24 None 172.16.201.101 Only Path 100 300 65001 ? *> 0.0.0.0/0 None 172.16.201.101 Only Path 100 300 65001 ? Show_rib_ipv4 in OVS3 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 16
17.
Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Down Show_rib_ipv4 in OVS1 Status
codes: * valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path *> 192.168.102.0/24 None 172.16.201.1 Only Path 100 i *> 0.0.0.0/0 None 172.16.203.101 Only Path 200 200 65001 ? *> 172.16.103.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 192.168.0.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 172.16.102.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 192.168.202.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 192.168.201.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 172.16.101.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 10.0.0.1/32 None 172.16.203.101 Only Path 200 200 65001 ? *> 192.168.100.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 172.16.104.0/24 None 172.16.203.101 Only Path 200 200 65001 ? *> 10.0.0.2/32 None 172.16.203.101 Only Path 200 200 65001 ? *> 172.16.201.101/32 None 172.16.201.1 Only Path 100 i *> 192.168.101.1/32 None 172.16.201.1 Only Path 100 i *> 172.16.202.101/32 None 172.16.201.1 Only Path 100 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 17
18.
Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Down Show_rib_ipv4 in OVS2 Status
codes: * valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path *> 192.168.201.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 0.0.0.0/0 None 192.168.202.1 Only Path 200 65001 ? *> 172.16.102.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 192.168.100.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 10.0.0.1/32 None 192.168.202.1 Only Path 200 65001 ? *> 172.16.104.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 192.168.202.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 172.16.103.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 172.16.101.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 10.0.0.2/32 None 192.168.202.1 Only Path 200 65001 ? *> 192.168.0.0/24 None 192.168.202.1 Only Path 200 65001 ? *> 192.168.102.0/24 None 172.16.202.1 Only Path 100 i *> 192.168.101.1/32 None 172.16.202.1 Only Path 100 i *> 172.16.202.101/32 None 172.16.202.1 Only Path 100 i *> 172.16.201.101/32 None 172.16.202.1 Only Path 100 i 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 18
19.
Quagga 1 Quagga 2 OVS1 OVS2 192.168.100.1/24 OVS3 Quagga 3 192.168.101.1/24 Down Show_rib_ipv4 in OVS3 Status
codes: * valid, > best Origin codes: i - IGP, e - EGP, ? - incomplete Network Labels Next Hop Reason Metric LocPrf Path *> 192.168.100.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 172.16.202.101/32 None 0.0.0.0 Only Path i *> 172.16.102.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 192.168.102.0/24 None 192.168.101.1 Only Path i *> 172.16.201.101/32 None 0.0.0.0 Only Path i *> 192.168.101.1/32 None 0.0.0.0 Only Path i *> 0.0.0.0/0 None 172.16.202.101 Only Path 200 100 65001 ? *> 172.16.101.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 192.168.201.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 192.168.0.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 172.16.104.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 10.0.0.1/32 None 172.16.202.101 Only Path 200 100 65001 ? *> 10.0.0.2/32 None 172.16.202.101 Only Path 200 100 65001 ? *> 172.16.103.0/24 None 172.16.202.101 Only Path 200 100 65001 ? *> 192.168.202.0/24 None 172.16.202.101 Only Path 200 100 65001 ? 192.168.201.0/24 192.168.202.0/24 172.16.203.0/24 172.16.201.0/24 172.16.202.0/24 19
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