Re: IP vs RPC transports in Sites and Services



Hi Kevin
The following rules apply to the replication transports:
-Replication within a site always uses RPC over IP.
-Replication between sites can use either RPC over IP or SMTP over IP.
-Replication between sites over SMTP is supported for only domain controllers of different domains. Domain controllers of the same domain must replicate by using the RPC over IP transport. Therefore, replication between sites over SMTP is supported for only schema, configuration, and global catalog replication, which means that domains can span sites only when point-to-point, synchronous RPC is available between sites.

The RPC intersite and intrasite transport (RCP over IP within sites and between sites) and the SMTP intersite transport (SMTP over IP between sites only) correspond to synchronous and asynchronous communication methods, respectively. Synchronous communication favors fast, available connections, while asynchronous communication is better suited for slow or intermittent connections.
--
I hope that the information above helps you.
Have a Nice day.

Jorge Silva
MCSE, MVP Directory Services
<getkevin@xxxxxxxxx> wrote in message news:1177963469.415039.97560@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello and thanks for reading.

I have four different sites in my AD infrastructure and some of the
auto-generated inter-site server transport connections show up as RPC
and some show up as IP while all my manually created transport default
to IP. What is the difference and should I be using only one type for
all the connections?

Kevin


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