[Xen-bugs] [Bug 596] ARP cache problems / slow connect times in routed mode

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=596





------- Additional Comments From matta@xxxxxxxxxxxx  2006-03-31 20:48 -------
Here is the output from a moderately loaded VM that I run myself under Xen 3.0.
 Note it is caching IP's all over the internet, not just the LAN.

On the host I simply route the VM's IP addresses through the appropriate vif
interface (as the stock vif-route script does).

root@server [~]# arp -an
? (70.72.131.173) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.93.115.80) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.93.55.243) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.198.66.180) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.57.216.71) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.159.243.22) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.21.244.248) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.56.201.186) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (217.10.34.178) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.20.218.42) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.36.161.61) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (193.217.186.154) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.79.16.167) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.117.71.70) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.136.96.42) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (200.247.66.37) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.124.16.238) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.91.255.131) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.223.65.254) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (201.43.77.87) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.55.88.168) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (82.1.230.47) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.212.240.214) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.108.216.190) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.130.232.73) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.40.154.80) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.150.70.141) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.190.235.124) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (213.163.108.26) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.64.159.112) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.193.227.215) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.91.119.35) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.255.201.136) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.142.232.32) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (82.224.235.97) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.174.43.152) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.49.218.38) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.142.72.250) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.3.199.251) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.204.241.47) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.135.240.12) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.104.111.134) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.180.163.2) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.155.64.178) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (134.121.247.141) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (86.193.221.86) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (213.102.132.245) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.48.76.151) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.253.151.107) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.190.212.144) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (213.208.119.179) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.175.175.127) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.47.180.76) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (142.163.118.52) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.210.134.213) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.55.16.230) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (60.234.144.169) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (61.228.50.86) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.172.175.58) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (72.144.87.204) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.227.115.24) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (220.178.201.146) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (85.182.45.104) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.94.237.243) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.126.203.166) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.139.153.244) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (217.17.19.9) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.41.153.179) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.21.205.153) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.30.36.72) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.158.155.107) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.72.236.108) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.28.151.162) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.121.4.117) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (67.189.214.9) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.226.22.87) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.13.134.53) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.142.232.33) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.23.126.177) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (82.5.232.59) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.200.8.33) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (72.129.213.211) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (219.145.195.138) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.52.12.159) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (85.140.24.142) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.52.63.90) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (67.184.88.33) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (82.241.101.186) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (86.202.196.66) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.231.135.96) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.83.153.86) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.240.74.95) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.82.51.251) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.20.200.246) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.161.40.92) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.119.66.191) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (64.184.30.29) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.194.209.21) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (86.213.46.216) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (67.169.132.231) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.84.118.99) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.184.214.176) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.172.126.21) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.199.196.8) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.241.197.122) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.249.116.81) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.112.238.187) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.149.214.38) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.93.135.62) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.96.55.32) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.165.47.162) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.69.202.69) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.142.50.106) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.50.207.36) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.92.77.62) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (217.114.145.167) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.78.92.208) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.222.223.74) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (71.37.235.184) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (212.10.107.11) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.60.17.66) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (149.43.100.64) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (142.167.201.33) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.134.29.60) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (67.168.240.154) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.94.44.165) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.158.79.164) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.157.187.106) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (219.154.211.153) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.217.9.176) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.92.115.182) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.84.176.165) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.174.219.220) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.92.255.58) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (128.123.127.89) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (149.43.94.110) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.126.175.37) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (86.195.251.94) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (86.130.190.248) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.38.48.242) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.232.93.249) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.195.104.33) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.156.94.181) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (217.225.176.113) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.235.160.149) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (222.80.199.104) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.107.150.31) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.200.22.166) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.201.162.175) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.92.40.130) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (88.137.63.98) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.32.75.48) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (12.214.247.221) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (200.44.229.118) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.57.109.119) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (72.178.235.6) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.81.91.232) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.205.90.59) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.233.164.27) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (195.14.254.92) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (213.202.240.118) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (24.165.129.176) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.186.103.114) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.70.176.215) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (80.138.110.176) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (84.55.1.168) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (66.212.202.208) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.82.40.231) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (216.45.163.93) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.35.222.166) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.86.183.31) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (207.38.8.30) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (70.118.26.162) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.0.253.250) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (64.113.81.45) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (213.112.123.20) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (68.40.112.50) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (69.124.123.44) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (62.143.57.138) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (81.50.196.167) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (83.93.0.7) at FE:FF:FF:FF:FF:FF [ether] on eth0
? (65.110.241.225) at FE:FF:FF:FF:FF:FF [ether] on eth0


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