Forking Proxies in Software

Encode Code 3/9 in Software Forking Proxies

1
Recognize ANSI/AIM Code 39 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Code-39 Maker In None
Using Barcode maker for Software Control to generate, create Code 3 of 9 image in Software applications.
This means such a proxy cannot respond with any provisional 1xx responses, nor can it terminate any sessions should a final response get lost or fail to be generated. The stateless proxy does compute a BRANCH value to be appended in the VIA header in the same fashion as the stateful proxy for identifying looping in the network. Forking proxies are used to split requests for routing to multiple destinations. For example, if a subscriber has registered multiple addresses (for multiple devices) and has a service that facilitates routing of calls to all devices, a forking proxy would then take the original request and split (or fork) it into multiple requests. These multiple requests would then be sent to all of the destinations registered for the subscriber. This is only one example; there are many other, similar services where forking of requests requires the services of a forking proxy. Since the forking proxy is splitting the request, it is the only entity that knows about the other destinations. The forking proxy may be an application server providing proxy service. Whatever the implementation, the originator of the request has no knowledge of the request being sent to other destinations. This means that the forking proxy must manage the responses from the other destinations. This of course requires the forking proxy to be a stateful proxy. As a stateful proxy, the forking proxy will send a 1xx provisional response when it receives the request. It will then forward the request to multiple destinations. However, when it receives multiple responses, it does not forward those responses to the UAC. This is one important differentiator between forking proxies and stateful proxies. Stateful proxies do not send 2xx responses, but the forking proxy does if it receives at least one 2xx response from one destination. The forking proxy will send the 2xx response back to the UAC regardless of the responses sent by the other destinations. This means that any non-1xx/2xx responses (error responses) must be handled by the forking proxy and not sent to the UAC, as this will cause the session to be terminated. Therefore, the proxy will return the appropriate response to all other destinations, depending on their response. For example, if multiple destinations send a 2xx response, the forking proxy will return an ACK to each of the responding destinations (remember only the forking proxy knows who these destinations are). The forking proxy must then also maintain the dialog between itself and the other destinations, acting as a middle agent for the entire session. Likewise, if any of the destinations responds with a 3xx 6xx response, the forking proxy will return a BYE message and terminate the dialog between itself and the other destination. The UAC that originated the request has no knowledge of this and has no visibility into the responses.
Scanning Code 3/9 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
ANSI/AIM Code 39 Generator In C#
Using Barcode drawer for Visual Studio .NET Control to generate, create Code 3/9 image in .NET framework applications.
Forking Proxies
Generating Code 39 Full ASCII In .NET
Using Barcode generator for ASP.NET Control to generate, create ANSI/AIM Code 39 image in ASP.NET applications.
ANSI/AIM Code 39 Drawer In VS .NET
Using Barcode creation for Visual Studio .NET Control to generate, create Code 3/9 image in .NET framework applications.
Redirect Servers
Code 39 Extended Printer In Visual Basic .NET
Using Barcode generator for .NET framework Control to generate, create ANSI/AIM Code 39 image in VS .NET applications.
Print Barcode In None
Using Barcode creator for Software Control to generate, create bar code image in Software applications.
A redirect server is used to provide alternate addresses for a request. There are many reasons why this would be desirable. For example, the network operator may wish to send alternate addresses for routing of a request when proxies become busy as a means of load sharing.
Printing DataMatrix In None
Using Barcode maker for Software Control to generate, create Data Matrix image in Software applications.
Universal Product Code Version A Encoder In None
Using Barcode drawer for Software Control to generate, create UPC-A image in Software applications.
Architecture of a SIP Network
Making USS Code 128 In None
Using Barcode generation for Software Control to generate, create Code 128 Code Set B image in Software applications.
GTIN - 13 Generation In None
Using Barcode creator for Software Control to generate, create European Article Number 13 image in Software applications.
The redirect server sends a 3xx response when it receives a request. The 3xx response provides the alternate address(es) to be used to reach the destination. The addresses provided could come from a variety of sources. One example would be a location server providing addresses based on current registrations to the redirect server upon query. The redirect server would then use these addresses in its own 3xx response back to the UAC, which would then send the request directly to the address(es) received. This definitely helps in reducing the amount of processing required on the proxies in the network.
Postnet 3 Of 5 Maker In None
Using Barcode maker for Software Control to generate, create USPS POSTNET Barcode image in Software applications.
Data Matrix ECC200 Drawer In None
Using Barcode generation for Online Control to generate, create Data Matrix image in Online applications.
Paint ECC200 In Visual Basic .NET
Using Barcode printer for .NET Control to generate, create ECC200 image in .NET framework applications.
Generate GTIN - 13 In None
Using Barcode printer for Online Control to generate, create UPC - 13 image in Online applications.
Printing Bar Code In None
Using Barcode drawer for Excel Control to generate, create barcode image in Excel applications.
UPC Symbol Printer In VS .NET
Using Barcode creation for VS .NET Control to generate, create GS1 - 12 image in Visual Studio .NET applications.
Print USS-128 In VB.NET
Using Barcode creation for VS .NET Control to generate, create EAN / UCC - 14 image in .NET framework applications.
Scanning Bar Code In .NET
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
Copyright © OnBarcode.com . All rights reserved.