Project

General

Profile

Actions

Feature #10863

closed

Add option for ARPING to occur on CARP promoted to MASTER

Added by Ricardo Mendes about 4 years ago. Updated about 4 years ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
09/03/2020
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:

Description

Hi all,

Coming across an issue where I have different servers on different DC's, switching provided by external company.
It happens that, as they state:

Real Multicast isn't possible inside the vSwitch. All packets will be handled like Broadcast Traffic.
You can try to use use gratuitous ARP on both ends end to ensure that the MACs are correct updated. It takes a short time the switches to learn the MACs entries.
For this we suggest to you that to use GARP on both ends end to ensure that the MACs are correct updated.

I believe it would be quite interesting to have an option (or plugin or sort) to enable VIP ARPING when the state changes from BACKUP to MASTER, triggered by the event, as a solution to overcome this difficulty.
I also believe it would also help people who are in similar conditions is a viable solution.

As reference I had made this post on the official pfSense forums: https://forum.netgate.com/topic/156499/carp-issues-due-to-layer-2-switching

Thank you.

Actions

Also available in: Atom PDF