Go Premium for a chance to win a PS4. Enter to Win

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1017
  • Last Modified:

Client/Server Traffic Details

Can anyone point me to a website or document that may outline what traffic passes from Outlook to Exchange and back when a user performs functions such as deleting or moving messages into folders?

Client: Outlook 2007 / 2010
Server: Exchange 2010
0
ajarvey
Asked:
ajarvey
  • 2
  • 2
1 Solution
 
Todd GerbertIT ConsultantCommented:
Are you asking what the details are of the protocol - or just need to know what types of network connections are used, i.e. the port numbers?
0
 
ajarveyAuthor Commented:
Lets say you have a user who is deleting or moving 1,000 messages from their inbox into a managed folder. What I want to know is how much, and what traffic is passed between the client and the server while that move is initiated, in process, and completed.
0
 
Todd GerbertIT ConsultantCommented:
Well, the traffic that goes back and forth between the client and server is just instructions - the client connects to Exchange and says "move messages with ids 1, 2 and 3 from folder A to folder B", the e-mail messages being moved between folders aren't sent to the client and then back to the server.

The type of traffic is RPC - that's about as much detail as I know without further investigation.

Running a packet capture while moving some messages with Outlook, I see about 2.5k of network traffic when moving one message, and about 8k of traffic when moving 7 messages (whose total size is about 500MB with attachments), and about 593k when moving 1,171 messages.  All in all, a fairly insignificant amount of traffic; for comparison's sake, viewing this web page results in about 150k of network traffic.

Separating the different phases of the move, and decoding the details of the communications protocol requires more intimate knowledge of Exchange's RPC mechanism than I posess, but attached are some Wireshark captures I used to determine the above numbers if you're interested.
Exchange-Move-Items-Capture-1-Me.txt
Exchange-Move-Items-Capture-7-Me.txt
Exchange-Move-Items-Capture-1171.txt
0
 
ajarveyAuthor Commented:
This was absolutely perfect. Thank you.
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now