Method and apparatus for controlling the admission of data into a network element
a technology of data and network elements, applied in the field of communication, can solve problems such as loss of packets, data traffic of higher priority, and system bogging,
Inactive Publication Date: 2006-03-02
TELEFON AB LM ERICSSON (PUBL)
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The patent describes a method and apparatus for controlling the admission of data packets into a network element. The technical effect of this invention is that it allows for efficient and prioritized processing of data packets, reducing delays and ensuring optimal performance of the network.
Problems solved by technology
Moreover, other customers of high-speed networks may desire to transport data employing packet-based data streams, which do not have dedicated timeslots to given packets.
Disadvantageously in current systems, even though lower priority data traffic is eventually dropped during times of network congestion, such traffic still consumes network resources, such as memory and processors, in order to categorize and prioritize the data traffic being received within a given network element.
One problem with this type of system is that it may be subject to network attacks, which involves the transmitting of a large number of packets to the targeted network elements, thereby “bogging” the system as attempts are made to receive, buffer and classify all of the data packets.
While under a network attack, the network element may not have enough memory space to buffer all of these “attack” packets, thereby resulting in the loss of packets (including valid packets that are not related to the network attack).
Moreover even absent a network attack, in such systems the higher priority data traffic are subject to being lost if the lower priority data traffic consumes the network resources, such as the memory buffer space, as data packets are dropped when the memory buffer space is exceeded.
Method used
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[0017] A method and apparatus for controlling the admission of data packets into a network element are described. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be evident, however, to one skilled in the art that the present invention may be practiced without these specific details.
System Description
[0018]FIG. 1 is block diagram illustrating a system that incorporates embodiments of the present invention. In particular, FIG. 1 illustrates system 100 that includes network ring 114, which is comprised of in-ring network element 102, in-ring network element 104, in-ring network element 106 and in-ring network element 108. System 100 also include non-ring network element 110, non-ring element 111 and non-ring network element 112, which are coupled to network ring 114 through in-ring network element 102, in-ring network element 104 and in-ring network eleme...
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A method and apparatus for controlling the admission of data packets into a network element is described. In an embodiment, a method for controlling admittance of a data packet into a memory buffer includes performing, prior to queuing the data packet for routing by a processor, the following: (1) receiving a data packet from one of at least two different ports, (2) determining a priority value within the data packet, and (3) determining an admittance group identifier for the data packet based on the priority value and the port the data packet was received. The method also comprises queuing the data packet from the memory buffer to one of a number of queues for routing by the processor upon determining that a number of data packets stored the memory buffer and having the admittance group identifier is not greater than a threshold value.
Description
FIELD OF THE INVENTION [0001] The invention relates to the field of communications. More specifically, the invention relates to controlling the admission of data into a network element. BACKGROUND OF THE INVENTION [0002] Within the field of communications, the need for high-speed transmission of data has continued to increase, as customers continue to need more bandwidth to satisfy the growing needs. Moreover, in addition to the demand for higher bandwidth, there has also been an increased need for various types of services that employ different protocols. For example, certain customers (e.g., companies providing voice services) of high-speed networks want to operate on a Time Division Multiplexing (TDM) Network, which combines different data streams, such as voice traffic, such that each data stream is assigned a time slot within the combined data stream. Moreover, other customers of high-speed networks may desire to transport data employing packet-based data streams, which do not ...
Claims
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IPC IPC(8): H04L12/26G06F15/16H04J3/08H04J3/16H04L12/56
CPCH04J3/085H04J3/1617H04J2203/0042H04J2203/0075H04J2203/0082H04L49/90H04L47/2408H04L47/2441H04L47/30H04L47/32H04L47/10
InventorCHERUKURI, RAVIKRISHNA V.MINSHALL, GREGORY G.
OwnerTELEFON AB LM ERICSSON (PUBL)