October 9, 2020 at 8:39 am
Hi,
I have created Multi-Subnet Cluster.
When server1 is primary, able to ping the listener from both subnets. But when server2 is primary able to ping listener only from same subnet. When pinged from different subnet, getting request timed out error.
Why am I unable to ping listener from different subnet?
October 10, 2020 at 9:10 am
Thanks for posting your issue and hopefully someone will answer soon.
This is an automated bump to increase visibility of your question.
October 27, 2020 at 4:37 am
This was removed by the editor as SPAM
October 27, 2020 at 6:50 am
As it's multi subnet DNS will have two or more entries depending how many subnets you span, so it's essentially picking the wrong DNS entry to ping as it will be trying to use the least latent IP so will generally pick the local subnet IP.
This is where the multi-subnet parameter on the connection string comes in handy for applications so it will essentially try all IPs for the listener and connect on which one responds.
If you wanted to ping correctly each time you would only register the active IP in DNS, there is a switch for this, something like registerallips I believe it is and set it to false, but that would mean your waiting for DNS to update and propagate each time the group fails over.
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