Hi @arm ,
DMR links use queues under the cover for persistent messages (you might see some queues starting with #cluster: in your broker). Those queues are set to ignore TTL (per default), so your messages shouldn’t expire while they are waiting on a link to be sent over to the next node.
This is similar to how VPN bridges behave, the default is also to ignore TTL.
For VPN bridges however, you can change that setting on the bridge queue.
I believe you can’t change this behaviour for DMR links (at least not currently).
The WebUI doesn’t allow you to edit the object.
Cheers,
Christian