Your Exchange DAG and WAN?

helo!

While many of our customers do have their Exchange nodes well connected some are asking: Can we put the second node of our DAG into a location where we have a hughe TCP round trip time?

The answer is: Yes and No. It depends? This was the answer you are searching for, right?

From a supportability perspective 500ms round trip time is the maximum supported value.

So now it is your decision to install the Node or not. BTW: An easy way to figure out the round trip time is to use pathping or ping. But hey – is ICMP only really the right thing to measure the round trip time?

Your EXGuru – aka Peter Forster – aka Satschent Peter

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