Method for re-routing data packets onto an alternative network
a data packet and alternative network technology, applied in the field of telecommunication networks, can solve the problems of affecting the transmission quality of data packets between source and destination node such as certain bandwidth, delay times and specific throughput, and cannot be promised, and achieve the disadvantage of a method too, and the delay of the forwarding of data packets to be transmitted normally is considerabl
Inactive Publication Date: 2007-06-14
SIEMENS AG
View PDF7 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0021] therefore, it is an object of the present invention to provide a method for switching data packets of a specific quality in a packet switching network onto an alternate network.
[0022] It is another object of the present invention to provide a method for switching data packets of a specific quality in a packet switching network onto an alternate network, wherein a routing table remains unaffected by ongoing modifications for the re-routing of the data packets.
[0023] It is a further object of the present invention to provide a method for switching data packets of a specific quality in a packet switching network onto an alternate network, wherein data packets need only be examined for a known bit pattern in the access node connected to a sour
Problems solved by technology
However, a quality of the transmission of data packets between source and destination node such as certain bandwidth, delay times and a specific throughput, can not be promised.
A critical disadvantage of this method is that the privileged handling in the forwarding of the data packets identified with the set bits leads to considerable delays in the forwarding of the data packets to be transmitted normally.
However, this method too suffers from the disadvantages mentioned above.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] Accord to FIG. 1, two source nodes U1, U2 of a plurality of conceivable source nodes and one of many possible destination nodes Z. The two source nodes U1, U2 are connected to an access node ZK1 and the destination node Z is connected to an access node ZK2, either directly or indirectly via respectively one or more intermediate nodes ZW1, ZW2 . The intermediate node ZW1 is shown with broken lines between U1 and ZK1, and the intermediate node ZW2 is shown with broken lines between ZK2 and Z. The access nodes ZK1 and ZK2 belong to a packet-switching network PN and respectively form an access to one or more alternate networks AN1 through ANn at the same time. Such a packet-switching network could be the Internet for example, within which mainly variable-length data packets are transmitted. Or, such a packet switching network could also be an ATM network (asynchronous transfer mode), wherein fixed-length data packets (ATM cells) are usually transported. Given the pre-condition th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
In one aspect, a method for re-routing data packets of a packet-switching network onto an alternate network that assures a quality requested by a network user is provided. Data packets to be routed via an alternate network in the source node by a bit pattern known to the access node are identified. The known bit pattern is recognizing upon arrival of such data packets in the access node. The data packets identified with the known bit pattern onto are re-routing an alternate network with a quality corresponding to the recognized bit pattern The re-routing of the data packet onto at least one alternate network is prevented, if after recognition of the bit pattern of a data packet to be routed, the at least one alternate network cannot offer the quality corresponding to the bit pattern.
Description
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention is generally directed to telecommunication networks. In particular, the present invention is directed to methods for re-routing data packets on a data switching network. [0003] 2. Discussion of the Related Art [0004] In a packet-switching network, such as for example the Internet, which is usually composed of a plurality of sub-networks, data packets from a source node are potentially transmitted to a destination node via a plurality of intermediate and / or access nodes of the individual sub-networks. In addition to containing information, the data packets particularly contain a destination address. The intermediate and / or access nodes contain what is referred to as a routing table for determining a traffic path in which each destination address of a data packet has a destination address of that node such as an intermediate node or an access node, to which the data packet is forwarded allocated ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04J3/14H04L12/56H04L12/28H04L12/54H04L47/80
CPCH04L12/5692H04L12/5695H04L29/06H04L47/10H04L47/728H04L47/785H04L47/801H04L47/70H04L9/40
Inventor PREHOFER, CHRISTIAN
Owner SIEMENS AG