473,698 Members | 2,445 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

MSMQ MultiCast (PGM) and garantied ordering

Hi,

I have eleven C# applications running on eleven different computers sending
packets to a MSMQ MultiCast configured queue (same address for all). Those
eleven senders also act as receivers.

Do all receivers receive the sent packets in the same order?

Thanks
Eric
Nov 17 '05 #1
1 4813
"Eric St-Onge" <er**********@c ommunity.nospam > wrote in message
news:4B******** *************** ***********@mic rosoft.com...
Do all receivers receive the sent packets in the same order?


No. Even if you were using 'regular' transmission rather than multicast the
answer would be the same. MSMQ offers limited guarantees regarding message
order mostly to do with preserving order with respect to a single sender in
transaction mode, it doesn't offer overall guarantees about message delivery
order between multiple senders..

It is possible that systems on the same LAN segment might see the same
multicast messages at the same time and so might by chance happen to receive
packets in the same order. However, since Ethernet works by collision
detection not collision avoidance it is always possible that a collision
could cause one system to not see the original transmission because of a
collision with some other transmission which could result in a different
receive order.
Nov 17 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
1443
by: Richard L Rosenheim | last post by:
Does anyone know of a .Net implementation (both client and server) that illustrates how to implement Pragmatic General Multicast (PGM)? The closest that I have been able to find is a plain IP Multicasting example: "IP Multicasting in C#" by Gary Brewer at http://www.codeproject.com/csharp/multicast.asp TIA, Richard Rosenheim
0
3485
by: Jörn Petersen | last post by:
Hello NG! I've been playing a little with Multiple-Destination Messaging in MSMQ using multicast addresses. I'm trying to assign a multicast address to a queue with C# code (using a MessageQueue object from the System.Messaging namespace), but so far I didn't succeed. When using the Computer Management snap-in of the MMC, the multicast address is just a tab of the queue's properties. Setting the same MC address on several...
7
7703
by: Jim H | last post by:
Is there something special I need to do to send data to a multicast IP and have it go across a router? Router is a Win2000 Server connecting 2 networks via RRAS PPTP. The routing appears to be working because I can ping the multicast address and get responses from the server on the other network. I didn't think ping would work like that but as long as I have the server process running I can ping the multicast IP and get a response. The...
2
3118
by: Terry | last post by:
I've got a strange problem receiving multicast packets in a C# application. What's strange is that it works *sometimes* but not always. I create a socket, call bind(), set the multicast socket option and then fire off a thread that calls "receiveFrom()" in a loop. This works sometimes, but other times it'll get into a funk where the "receiveFrom()" call doesn't return even though a packet trace capture (Ethereal) shows that the...
1
1719
by: Thien Le | last post by:
How can I do IP Multicast with MSMQ (System.Messaging.MessageQueue) Thank you for your help Thien Le
0
1694
by: Rui | last post by:
Where can I get some c# code samples using the Pragmatic General Multicast (PGM) protocol (client\Server) ? regards
7
8455
by: pietro.cerutti | last post by:
Hi guys, I have a daemon running on Debian and listening for multicast packets sent to 224.0.0.251:5353 (ZeroConf Multicast DNS queries). The server is plugged into a VLAN trunk with eth0 and joins several VLANs using virtual interfaces (i.e. eth0.xxx). It should be able to capture the UDP packets on any interfaces, so it spawns a thread for each interface specified in a config file, and for each thread it creates a socket: ...
1
4154
by: Jayme.Pechan | last post by:
I was working on a multicast client and ran into a possible problem. Here is the code... udpClient = new UdpClient(4000); udpClient.JoinMulticastGroup(IPAddress.Parse("224.1.1.1")); udpClient.BeginReceive(new AsyncCallback(DoUDPReceive), this); My concern is that it seems to make exclusive use of port 4000 so I worry that in a Citrix environment, it would fail with an AddressAlreadyInUse exception like it does if you run two...
5
8918
by: AliRezaGoogle | last post by:
Hi, I have a conceptual question on Events and Multicast Delegates. Let me explain: As we know an event is a multicast delegate. What we declare as an event is inherently a multicast delegate. I really do not undrestand what additional features the "event" keyword adds to multicast delegate. The only thing that I see as an additional feature is a "Thunder Icon" near event name in VS IDE when intellisense works;).
0
8675
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9160
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9029
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8897
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8862
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
1
6521
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
5860
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
2
2331
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2002
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.