Not sure if this is a bug, but I have found in testing the Virtual Routers dump their arp cash almost every 5-10 seconds.
This makes them loose connectivity if they live behind a perimeter firewall cluster running floating IPs for gateway addresses (for example: Conntrack, CRM/Pacemaker, VRRP). Any vm using a shared network connection to the floating gateway has no issues, but isolated networks requiring the VR to be an initial gateway will loose connectivity as the Debian VR aggressively flushes its ARP cache. You can even watch connections stop then start when the gateway cluster sends its unsolicited ARP broadcasts, and then within a few seconds, stop again. Can we look into this? My setup is below Gateway cluster running: 4 floating IPs on eth4 (Cloud public network gateways, 1 per zone, all VRs point to these) 36 floating IPs on eth0 (SNAT addresses into cloud) 2 floating IPs on eth1 (Management Gateways) HB on eth2 (Cluster heartbeat) *No issues connecting VMs directly to the gateway cluster with shared networks(VLAN) *connection issues when using isolated networks routed through VR to gateway cluster -kelcey Sent from my iPhone
