I have TNSR installed on a couple of HP servers with 4 10g NICs each, divided into 2x 20g LACP bonds per server (LAN and WAN).
VRRP is configured, and NAT.
When I set the VRRP LAN IP as a default gateway for a client device and ping something on the internet, I get 3 pings, a timeout, and repeat. When doing a speedtest I get a transient drop in speed every few seconds. Otherwise it works fine. What did I do wrong?...
Thanks for any help!
I would check the switch and the server maybe mismatched settings on lacp ?
@kiokoman Good point but I think it's all OK. bond settings:
<bond-table> <bond> <instance>0</instance> <mode>lacp</mode> <load-balance>l34</load-balance>
As far as I can tell this should be compatible with the Unifi switches. I am using budget Chinese SFP+ DAC cables but hopefully that has nothing to do with it...
from the documentation:
there is a default timeout of 3 seconds when monitoring bonding peers with LACP.
could this be related to the problem? (3 sec = 3 ping -> timeout )
Works great if I turn off one of the servers and/or disable the bonds on one of the servers, so the other one takes over VRRP master. So I think the problem is to do with VRRP....
I set it up as per https://docs.netgate.com/tnsr/en/latest/recipes/vrrp-nat/index.html and I can see the second node occasionally being elected master every few seconds.... Argh!
storm control / rate limiting on multicast?
master will transmit advertisements. If other nodes fail to see advertisements from a higher priority node in a timely manner defined by the settings, control of the virtual address is assumed by the backup node with the next highest priority
audian last edited by
Can you try different cables just to rule that out as a cause?
@kiokoman we have flow control enabled on a few Unifi switches in order to speed up wifi, but they are quite a ways downstream from where the TNSR machines are
@audian I tried different cables to different switches, different SFP+ cards (Intel X520), and a whole different server for node A. No luck...
Here are the VRRP settings... node A is internal IP .11 and external .181, B is 12 and 182. NAT is configured