Hi,
I'm running Proxmox 2.3 with the latest updates installed (though, I noticed the same issue on the previous 2.3 builds).
When I ping (from another server) an openvz container which has no network load at the moment, the 1st ping has high latency:
Digging it deeper, it appears that the delay occurs before arp reply packet:
Any ideas why that happens? Is there anything that could be tweaked to fix this?
I'm running Proxmox 2.3 with the latest updates installed (though, I noticed the same issue on the previous 2.3 builds).
When I ping (from another server) an openvz container which has no network load at the moment, the 1st ping has high latency:
Code:
# ping vm-centos6-2
PING vm-centos6-2.domain.tld (172.26.200.250) 56(84) bytes of data.
64 bytes from vm-centos6-2.domain.tld (172.26.200.250): icmp_seq=1 ttl=64 time=227 ms
64 bytes from vm-centos6-2.domain.tld (172.26.200.250): icmp_seq=2 ttl=64 time=0.096 ms
64 bytes from vm-centos6-2.domain.tld (172.26.200.250): icmp_seq=3 ttl=64 time=0.088 msCode:
17:32:24.289426 ARP, Request who-has 172.26.200.250 tell 172.26.1.14, length 46
17:32:25.040691 ARP, Reply 172.26.200.250 is-at 00:30:48:79:20:d6, length 28
17:32:25.040763 IP 172.26.1.14 > 172.26.200.250: ICMP echo request, id 36915, seq 1, length 64
17:32:25.040812 IP 172.26.200.250 > 172.26.1.14: ICMP echo reply, id 36915, seq 1, length 64Code:
# cat /etc/network/interfaces
# network interface settings
auto lo
iface lo inet loopback
iface eth0 inet manual
iface eth1 inet manual
auto vmbr0
iface vmbr0 inet static
address 172.26.1.36
netmask 255.255.0.0
gateway 172.26.1.1
bridge_ports eth0.1
bridge_stp off
bridge_fd 0
auto vmbr12
iface vmbr12 inet static
address 172.27.1.36
netmask 255.255.0.0
bridge_ports eth0.12
bridge_stp off
bridge_fd 0