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1. 发明公开

EP3384642A1 FORWARDING TABLE COMPRESSION 有权
公开(公告)号：EP3384642A1
公开(公告)日：2018-10-10
申请号：EP16816503.3
申请日：2016-11-29
申请人： Netflix, Inc.
发明人： BANNISTER, David
IPC分类号： H04L12/743 , H04L12/715 , H04L12/741
CPC分类号： H04L45/748 , H04L45/04 , H04L45/48 , H04L45/54 , H04L45/745 , H04L45/7457
摘要： One embodiment of the present invention sets forth a technique for compressing a forwarding table. The technique includes storing a first network prefix and a first set of routing information associated with the first network prefix in a routing table, and writing the first network prefix from the routing table to a first entry included in a forwarding table. The technique further includes storing a second network prefix and a second set of routing information associated with the second network prefix in the routing table. The second network prefix is covered by the first network prefix. The technique further includes, based on comparing the first set of routing information to the second set of routing information, determining that the second network prefix should not be written from the routing table to the forwarding table, or removing the second network prefix from the forwarding table.

2. 发明公开

EP3035612A4 METHOD FOR MAKING FLOW TABLE MULTIPLE LEVELS, AND MULTI-LEVEL FLOW TABLE PROCESSING METHOD AND DEVICE 有权
公开(公告)号：EP3035612A4
公开(公告)日：2018-07-18
申请号：EP14843350
申请日：2014-09-26
申请人： ZTE CORP
发明人： LIU BIN , LI YONG , NIU XIAOBING , JIN DEPENG , LIU ZHONGJIN
IPC分类号： H04L12/741 , H04L12/715 , H04L12/747
CPC分类号： H04L45/7457 , H04L12/6418 , H04L45/54 , H04L45/64 , H04L45/74 , H04L45/742
摘要： An embodiment of the present invention discloses a flow table multi-leveling method, a multi-level flow table processing method and device; wherein the multi-leveling method includes: generating a second flow table, separating a target logic rule in a first flow table and forwarding actions corresponding the target logic rule to the second flow table, to make the first flow table and the second flow table orthogonal to form a ternary content addressable memory (TCAM) flow table; wherein the first flow table saves a plurality of logic rules and all forwarding actions corresponding to the plurality of logic rules respectively; continuously generating new flow tables in the same manner of generating the second flow table, until the number of flow tables reaches a preset upper limit.

3. 发明公开

EP3342113A1 DYNAMIC ALLOCATION OF RESOURCES WITHIN NETWORK DEVICES 有权转让
公开(公告)号：EP3342113A1
公开(公告)日：2018-07-04
申请号：EP15905597.9
申请日：2015-09-30
申请人： Hewlett Packard Enterprise Development LP
发明人： WICKERAAD, John A. , GOOCH, Mark
IPC分类号： H04L12/917 , H04L12/931
CPC分类号： H04L45/7457 , H04L45/7453 , H04L47/24 , H04L47/70
摘要： Examples relate to dynamic allocation of resources within network devices. In one example, a computing device may: receive, from a particular lookup function of a plurality of lookup functions, a lookup request for a network packet; identify, based on a logical table that corresponds to the particular lookup function, at least one physical resource included in a particular resource pool of at least one dynamic resource pool; obtain, from a particular physical resource of the at least one physical resource, response data that is responsive to the lookup request; and provide the response data to the particular lookup function.

4. 发明授权

EP3176994B1 EXPLICIT CONTENT DELETION COMMANDS IN A CONTENT CENTRIC NETWORK 失效转让
公开(公告)号：EP3176994B1
公开(公告)日：2018-05-23
申请号：EP16199629.3
申请日：2016-11-18
申请人： Cisco Technology, Inc.
发明人： WOOD, Christopher A. , SCOTT, Glenn C.
IPC分类号： H04L29/08 , H04L12/743
CPC分类号： H04L67/2852 , H04L45/7453 , H04L45/7457 , H04L67/2842 , H04L67/327
摘要： One embodiment provides a system that deletes cached content. During operation, the system generates, by a content producing device, a content object packet that includes a name for the content object and a deletion identifier that is used to verify a subsequent deletion command. The system receives a notification message that includes a routable prefix for a router and indicates that the router has cached the content object packet. The system stores in a data structure a mapping between the routable prefix, the name, and a previously generated deletion token which is used as a pre-image of the deletion identifier. In response to determining a condition to delete the cached content object packet, the system transmits a deletion command based on the routable prefix, wherein the deletion command includes the deletion token and the name for the cached copy of the content object packet to be deleted.

5. 发明公开

EP3269100A1 COMBINING PREFIX LENGTHS INTO A HASH TABLE 审中-公开
标题翻译：将前长度组合成一个哈希表
公开(公告)号：EP3269100A1
公开(公告)日：2018-01-17
申请号：EP15899047.3
申请日：2015-07-17
申请人： Hewlett Packard Enterprise Development LP
发明人： WICKERAAD, John A.
IPC分类号： H04L12/745 , H04L12/743
CPC分类号： H04L45/748 , H04L45/7453 , H04L45/7457 , H04L61/6004
摘要： Examples herein disclose a smaller prefix length and a greater prefix length which are identified from a routing table of various prefix lengths. The smaller prefix length is converted into the greater prefix length. The converted prefix length and the greater prefix length are combined into a hash table.

6. 发明公开

EP3255834A4 METHOD OF COMMUNICATION BETWEEN NETWORK DEVICE AND TERMINAL DEVICE, NETWORK DEVICE AND TERMINAL DEVICE UTILIZING SAME 有权
公开(公告)号：EP3255834A4
公开(公告)日：2017-12-20
申请号：EP15884956
申请日：2015-03-13
申请人： HUAWEI TECH CO LTD
发明人： LIU BING , BO YANG , JIANG SHENG
IPC分类号： H04L12/24 , H04L12/743 , H04L12/751 , H04L29/06
CPC分类号： H04L61/25 , H04L41/12 , H04L45/02 , H04L45/74 , H04L45/7457 , H04L61/35 , H04L63/14
摘要： Embodiments of the present invention provide a method for communication between a network device and a terminal device, where the network device stores information, the information includes a correspondence between a link-layer address and an IP address that are of the terminal device, and the method includes: obtaining, by the network device, a first link-layer address; determining whether a quantity of IP addresses corresponding to the first link-layer address in the information reaches a threshold, where the threshold indicates a maximum quantity of IP addresses that are corresponding to the first link-layer address and that can be stored in the network device; if the quantity of IP addresses reaches the threshold, selecting an IP address from the IP addresses corresponding to the first link-layer address, where a quantity of selected IP addresses is not greater than the maximum quantity; saving a correspondence between the first link-layer address and the selected IP address; and sending, according to the selected IP address, a message to a terminal device having the first link-layer address, where the message is used to notify the terminal device having the first link-layer address whether an IP address is selected by the network device. A problem that a cache of the network device is insufficient can be effectively relieved, and a packet loss in a communication process may be reduced.

7. 发明公开

EP3222013A1 A LOOKUP SYSTEM AND A LOOKUP METHOD 审中-公开
标题翻译：查找系统和查找方法
公开(公告)号：EP3222013A1
公开(公告)日：2017-09-27
申请号：EP15801890.3
申请日：2015-11-12
申请人： Coriant Oy
发明人： HALLIVUORI, Ville , KUUSISAARI, Juhamatti , SILVOLA, Mika , KOSKI, Teemu , NARUMO, Timo
IPC分类号： H04L12/743 , G06F17/30
CPC分类号： H04L45/7457 , G06F17/30955
摘要： A lookup system comprises a ternary content-addressable memory TCAM (101) configured to carry out a lookup on the basis of a lookup key (105) so as to produce a preliminary lookup result (106). The lookup system further comprises a subsystem (102) configured to produce a final lookup result (110) on the basis of the preliminary lookup result and auxiliary data (108) comprising at least a part of bit values of do-not-care bit positions of the lookup key such that the preliminary lookup result is independent of the bit values of the do-not-care bit positions. The required number of TCAM-lines can be reduced because different alternatives of the auxiliary data corresponding to different possible bit values of the do-not-care bit positions of the lookup key are handled with the subsystem instead of the TCAM.
摘要翻译：查找系统包括三态内容可寻址存储器TCAM（101），其被配置为基于查找键（105）执行查找以产生初步查找结果（106）。查找系统还包括被配置为基于初步查找结果产生最终查找结果（110）的子系统（102），以及包括无关位位置的位值的至少一部分的辅助数据（108），使得初步查找结果独立于无关位位置的位值。可以减少所需数量的TCAM线，因为与子系统而不是TCAM一起处理对应于查找关键字的无关位位置的不同可能位值的辅助数据的不同替代方案。

8. 发明公开

EP3130107A4 APPARATUS AND METHOD FOR LOW LATENCY SWITCHING 有权转让
标题翻译： VORRICHTUNG UND VERFAHREN ZUM SCHALTEN MIT NIEDRIGER LATENZ
公开(公告)号：EP3130107A4
公开(公告)日：2017-09-06
申请号：EP14899656
申请日：2014-12-03
申请人： METAMAKO TECH LP
发明人： SNOWDON DAVID , THOMAS CHARLES , MCDAID SCOTT , POWLES LINDSAY
IPC分类号： H04L12/413 , G06F13/00 , G06F15/163 , G06F15/17 , H04L12/743 , H04L12/931 , H04L12/933
CPC分类号： H04L49/201 , G06F13/00 , G06F15/163 , G06F15/17 , H04L12/413 , H04L45/7457 , H04L49/101
摘要： A method of data switching. Data is received at least one input port of a crosspoint switch. The crosspoint switch configurably casts the data to at least one output port of the crosspoint switch. The or each output port of the crosspoint switch is connected to a respective input of a logic function device such as a FPGA. The logic function device applies a logic function to data received from the or each output port of the crosspoint switch, such as address filtering or multiplexing, and outputs processed data to one or more respective logic function device output interfaces. Also, a method of switching involving circuit switching received data to an output while also copying the data to a higher layer function.
摘要翻译：数据交换的一种方法。数据在交叉点开关的至少一个输入端口被接收。交叉点开关可配置地将数据投射到交叉点开关的至少一个输出端口。交叉点开关的该输出端口或每个输出端口连接到逻辑功能设备（例如FPGA）的相应输入端。逻辑功能设备对从交叉点开关的每个输出端口或每个输出端口接收到的数据（诸如地址过滤或复用）应用逻辑功能，并将处理后的数据输出到一个或多个相应的逻辑功能设备输出接口。此外，一种切换方法涉及将接收到的数据切换到输出，同时还将数据复制到更高层功能。

9. 发明授权

EP2777228B1 SYSTEM AND METHOD FOR FLOW MANAGEMENT IN SOFTWARE-DEFINED NETWORKS 有权转让
标题翻译： SYSTEM AND METHOD FOR数据流管理软件定义网络
公开(公告)号：EP2777228B1
公开(公告)日：2016-09-21
申请号：EP12795941.9
申请日：2012-11-08
申请人： Brocade Communications Systems, Inc.
发明人： ANANTHAPADMANABHA, Kashyap, Tavarekere , AGARWAL, Vivek , CHINTHALAPATI, Eswara S.P.
IPC分类号： H04L12/743 , H04L12/935
CPC分类号： H04L45/7457 , H04L45/00 , H04L45/38 , H04L45/7453 , H04L47/2441 , H04L47/2483 , H04L49/3009 , H04L61/103

10. 发明授权

EP2214356B1 SYSTEM FOR FORWARDING A PACKET WITH A HIERARCHICALLY STRUCTURED VARIABLE-LENGTH IDENTIFIER 有权转让
标题翻译：系统用于转发报文长度可变的分层结构标识
公开(公告)号：EP2214356B1
公开(公告)日：2016-05-25
申请号：EP10152134.2
申请日：2010-01-29
申请人： Palo Alto Research Center Incorporated
发明人： Jacobson, Van L. , Thornton, James D.
IPC分类号： H04L29/08 , H04L12/701 , H04L29/12 , H04L12/743
CPC分类号： H04L45/00 , H04L45/7457 , H04L67/327

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