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公开(公告)号：EP2454857B1
公开(公告)日：2013-07-31
申请号：EP10735307.0
申请日：2010-07-19
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L43/0882 , H04L47/11 , H04L47/12 , H04L47/20 , H04L47/215 , H04L47/31 , H04L47/33 , H04L47/35 , H04L47/41 , Y02D50/30
摘要： Methods and systems for policing usage by one or more users (12) of a data network (14), said one or more users (12) being able to send, to receive, or to send and receive data over the network via one or more of a plurality of access nodes (42), the usage of the data network resulting from respective data units consuming network resources along respective paths across the data network (14), each of said data units being associated with one of a plurality of subsets of the usage of the data network, said data units having congestion indications associated therewith indicating a measure of their congestion impact.
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公开(公告)号：EP2583420A1
公开(公告)日：2013-04-24
申请号：EP11726926.6
申请日：2011-06-14
CPC分类号： H04W24/02 , H04L43/0864 , H04L43/087 , H04L47/10 , H04L47/24 , H04L47/26 , H04L47/283 , H04L47/286 , H04L47/32 , H04L47/326
摘要： Methods and an associated traffic management module and system are disclosed for monitoring, at a traffic management module (26) within a data network, path characterisation information indicative of at least one measure of a dynamic network characteristic at a remote node (23) outside said data network. The method involves a traffic management module (26) receiving at least one data unit from a remote node (23) outside said data network, and in the event that said at least one data unit is encapsulated in an outer header and that an inner header of said data unit includes path characterisation information, performing the following in respect of said data unit: (a) monitoring said path characterisation information in said inner header; and (b) forwarding said data unit according to a first treatment category. In the event that these conditions are not met, the data unit is instead subjected to an alternative treatment.
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公开(公告)号：EP2553885A1
公开(公告)日：2013-02-06
申请号：EP11710236.8
申请日：2011-03-16
发明人： SMITH, Alan, Philip , JACQUET, Arnaud , BRISCOE, Robert, John , SOPPERA, Andrea , APPLEBY, Stephen, Clifford , MONCASTER, Tobias
IPC分类号： H04L12/56
摘要： Methods, apparatus and other means for providing path characterisation information to a data sender relating to a network characteristic such as congestion experienced by data units traversing a path across a data network from the data sender towards one of a plurality of data receivers, the data units having associated therewith information indicative of the network characteristic, the path being traversed by the data units having at least a first path portion between said data sender and a proxy node along which data units may traverse conveying a measure indicative of the network characteristic that is representable by any of a first set of codepoints, the data receivers being operable to provide data acknowledgement units in respect of data units they receive via a second path portion in which information indicative of the network characteristic may only be representable using codepoints of a second set of codepoints having less codepoints than the first set of codepoints.
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公开(公告)号：EP2258079B1
公开(公告)日：2012-02-29
申请号：EP09724238.2
申请日：2009-03-27
发明人： JACQUET, Arnaud , MONCASTER, Toby
CPC分类号： H04L47/26 , H04L1/0026 , H04L1/0033 , H04L43/00 , H04L43/0829 , H04L43/0864 , H04L43/087 , H04L43/106 , H04L45/123 , H04L47/12
摘要： Methods and systems for determining origin-specific network metrics in respect of a data network having at least one ingress node, the method comprising: receiving data items from outside the network; forwarding the data items with headers comprising fields for carrying origin information relating to the origin of the data item, and path metric information indicative of a characteristic being monitored; causing the data items to traverse the network; updating the fields carrying path metric information as the data items traverse the network; determining the origin information and path metric information after the data items have traversed the network and deriving in dependence thereon an origin-specific path metric relating to the characteristic in respect of the relevant portion of a path across the network; and combining origin-specific path metrics derived in respect of different data items if they relate to characteristics in respect of data items having a common origin. Also, methods and systems for determining target-specific network metrics in respect of a data network having at least one egress node.
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公开(公告)号：EP2412128A1
公开(公告)日：2012-02-01
申请号：EP10710891.2
申请日：2010-03-25
IPC分类号： H04L12/56
摘要： Apparatus and methods for policing flows of data units (15) along a path in a data network in dependence on congestion indications associated with said data units indicating whether or not said data units have experienced, or are expected to experience, congestion on the path, said apparatus and methods allowing for a high but not unlimited short-term burst rate (w
ST ) of data units having congestion indications associated therewith, the short-term burst rate being high when compared with a long-term average rate (w
LT ) at which data units having congestion indications associated therewith may be forwarded without the data units being subjected to a policing action such as dropping, delaying or marking for possible sanction.-
公开(公告)号：EP2245801B1
公开(公告)日：2011-10-05
申请号：EP09702229.7
申请日：2009-01-14
IPC分类号： H04L12/56
CPC分类号： H04L47/31 , H04L43/08 , H04L43/0852 , H04L47/10 , H04L47/11 , H04L47/32 , H04L47/35 , H04L69/16 , H04L69/161 , H04L69/22 , H04L2212/00
摘要： Methods and systems for assigning information indicative of a network characteristic to one of a plurality of data units traversing a path across a network, said data units having associated therewith values indicative of said network characteristic, said path having at least one portion passing through a lower-capability region and at least one portion passing through a higher-capability region, said lower-capability region being a region in which information indicative of said network characteristic may be represented by values having a first resolution, and said higher-capability region being a region in which information indicative of said network characteristic may be represented by values having a second resolution, said second resolution being greater than said first resolution, said one data unit being a data unit entering said higher-capability region.
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7.发明授权Data network, method and feedback node for assigning and providing path characterisation metrics 有权分配数据网络，处理和反馈节点和提供度量Wegcharakterisierungs
公开(公告)号：EP1730907B1
公开(公告)日：2009-07-08
申请号：EP05729631.1
申请日：2005-03-30
CPC分类号： H04L12/14 , H04L12/1425 , H04L12/1489 , H04L45/02 , H04L45/123 , H04L45/22 , H04L45/26 , H04L45/70
摘要： The invention relates to data networks, and to nodes making up parts of data networks, arranged to derive information relating to the characterisation of paths taken by data travelling between nodes in the networks. Path characterisation information is fed back from a receiver of data to a provider of data, and informs nodes subsequently forwarding data of characteristics of the downstream path. Also described are routing and related controlling nodes and methods for using such path characterisation information to make informed routing and other decisions when forwarding data in a data network.
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公开(公告)号：EP2033369A1
公开(公告)日：2009-03-11
申请号：EP07733389.6
申请日：2007-06-26
CPC分类号： H04L47/10 , H04L43/00 , H04L43/022 , H04L43/026 , H04L43/16 , H04L47/11 , H04L47/12 , H04L47/18 , H04L47/22 , H04L47/26 , H04L47/28 , H04L47/32 , H04L47/35
摘要： Methods and systems for determining a correction factor for use in monitoring network traffic, said network traffic comprising a plurality of flows of data units, each flow having associated therewith a flow identifier, said data units having associated therewith a path characterisation metric; the method comprising the steps of: selecting a subset of flow identifiers from the overall set of flow identifiers; determining, in respect of flows having associated therewith flow identifiers from said selected subset of flow identifiers, which flows if any are persistently irregular flows; determining a first measure of the total of the accumulated path characterisation metrics associated with data units of said selected subset of flows; determining a second measure indicative of the proportion of said total measure contributed by said persistently irregular flows; and determining a correction factor in dependence on the first and second measures.
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公开(公告)号：EP1730908A1
公开(公告)日：2006-12-13
申请号：EP05729774.9
申请日：2005-03-30
CPC分类号： H04L12/14 , H04L12/1425 , H04L12/1489 , H04L45/02 , H04L45/123 , H04L45/22 , H04L45/26 , H04L45/70
摘要： The invention relates to data networks, to nodes making up parts of data networks, and to information relating to the characterisation of paths taken by data travelling between nodes in the networks. Path characterisation information is arranged to be conveyed to nodes such that it may be used by nodes subsequently forwarding data. In particular the invention relates to nodes receiving such path characterisation information from upstream nodes, deriving therefrom information indicative of characteristics of a path downstream of said nodes, and using such information to make informed decisions such as routing decisions when forwarding data onward in data networks.
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公开(公告)号：EP1576474A1
公开(公告)日：2005-09-21
申请号：EP03782610.4
申请日：2003-12-11
CPC分类号： H04L12/1822 , G06Q10/10
摘要： The invention provides the concept of a network channel which is used as a waiting channel, wherein members of a group other than a first member join the waiting channel whilst performing an action or process, and then leave the waiting channel once the action or process has been performed. Once all of the members have left the waiting channel the first member of the group then performs an action or process. In order to indicate to the first member that all of the other members have left the waiting channel, a protocol such as the Multicast Source Notification of Interest Protocol (MSNIP) may be used.
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