Hi, CARP supports "advskew" (advertisement skew) parameter which is essentially a delay in 1/256 of seconds added to the base advertisement interval to make one host advertise a bit slower that the other. For example if "advbase" (advertisement base) is 2 seconds and in addition there is a "advskew 100" configured, then host sends CARP messages with 2.39 (2+1/256*100) second interval instead of 2 second interval. If there are two systems online with the same VHID, the one with the lowest "advskew" will become master, but based on my tests, it's true only if the "advbase" of two systems is identical. In other words it's not just the "advskew", but the system with lowest advbase+advskew value will take the master role. That's why I have two questions:
1) Why does the messages interval matter to CARP? Is CARP designed in a way that CARP preferres system which announces CARP messages with shortest interval? 2) Why is "advskew" needed if one could determine the master/backup role solely with "advbase"? regards, Martin _______________________________________________ List mailing list [email protected] https://lists.pfsense.org/mailman/listinfo/list
