We have a child domain with Exchange Server 2013 Installed. We discovered that we have high traffic between the two sites and we ran wireshack on the link. We discovered tha the following protocol:
msft-gc, Microsoft Global Catalog ( is much between the two sites.
We have a GC in the child domain, is there a way to make the Exchange in the child domain talk more to the GC in the child domain?
Is it a good practice to set a Default GC and DC on an exchange server?