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RyuBGPSpeakerを活用したOpenFlow簡易ルータを試してみた
The document describes an experiment using RyuBGPSpeaker to create a simple OpenFlow router that integrates BGP and OpenFlow routing. The author first tests connecting an OpenFlow switch to RyuBGPSpeaker to inject BGP learned prefixes into the switch's flow table. Then, the author improves the design by running the OpenFlow switch and Ryu controller on the same Linux machine to avoid adding cables for each new BGP peer. The experiment confirms basic routing works as expected, with routes converging again within a minute if the BGP network is interrupted.
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RyuBGPSpeakerを活用したOpenFlow簡易ルータを試してみた
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- 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
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- 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-9chttp://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