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| How does cluster virtual behave differently with and without FFO? | ||||
Situation #1. "cluster virtual ffo off" AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. Unplugged AN1. AN1(backup) doesn't send VRRP packets, and AN2(master) sends VRRP packets on a routine schedule. Plugged AN1 again. AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. Situation #2. "cluster virtual ffo on" When FFO is enabled, APV knows that the other node is unplugged, so it will not send out advertisement. When plugging AN1 back into the network, the link is detected, AN2 will start sending out the advertisement. At this that time it will negotiate and set the role status.
AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. Unplugged AN1. AN1(backup) doesn't send VRRP packets, and AN2(master) sends VRRP packets only once. Plugged AN1 again. AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. ___________________________________________________________ Advertisement packets: AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. 07:59:51.889147 10.7.15.40 > 224.0.0.18: ip-proto-112 20 08:00:07.019637 10.7.15.40 > 224.0.0.18: ip-proto-112 20
Unplugged AN1. AN1(backup) doesn't send VRRP packets, and AN2(master) sends VRRP packets only once.
Plugged AN1 again. AN2 (master) starts sending out VRRP packets until AN1 link is completely up. 08:02:38.688628 10.7.15.45 > 224.0.0.18: ip-proto-112 20
AN1 link is fully established and start negotiating role status.
AN1(master) sends VRRP packets on a routine schedule, and AN2(backup) doesn't send VRRP packets. |
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