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1. 发明申请

WO2013005140A1 HIERARCHICAL PACKET POLICER 审中-公开
标题翻译：分层分组策略器
公开(公告)号：WO2013005140A1
公开(公告)日：2013-01-10
申请号：PCT/IB2012/053262
申请日：2012-06-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ALLEYNE, Brian , CHEN, Sun, Den , LAKSHMIKANTHAN, Ramanathan
发明人： ALLEYNE, Brian , CHEN, Sun, Den , LAKSHMIKANTHAN, Ramanathan
IPC分类号： H04L12/56
CPC分类号： H04L47/20
摘要： Embodiments of the invention a method for policing a packet at line rate. A hierarchical policer receives a policer request comprising packet characteristics and identifying request configuration information. The hierarchical policer retrieves meter states specified by the request configuration information. The hierarchical policer processes packet characteristics through meters to generate a meter result. The hierarchical policer generates a hierarchical policer table lookup address using a plurality of meter types, a plurality of input color controls, one or more of the packet characteristics, the meter results, and a plurality of coupling algorithm identifiers. The hierarchical policer reads a hierarchical meter result from a hierarchical policer result table, containing at least a final output packet attribute that classifies the packet. The hierarchical policer updates one or more of the meter states based on the plurality of meter state results. The hierarchical policer returns the final packet output to a policing requestor.
摘要翻译：本发明的实施例提供了一种以线速度对分组进行管理的方法。分层策略器接收包含分组特性和识别请求配置信息的策略请求。分层策略器检索由请求配置信息指定的仪表状态。分层策略器通过米来处理分组特征，以产生测量结果。分级策略器使用多个仪表类型，多个输入颜色控制，分组特性中的一个或多个，仪表结果和多个耦合算法标识符来生成分层策略表查找地址。分层策略器从分层策略器结果表中读取分层计量表结果，其中至少包含对数据包进行分类的最终输出数据包属性。分层监视器基于多个仪表状态结果来更新仪表状态中的一个或多个。分层策略器将最终的分组输出返回到管理请求者。

2. 发明申请

WO2012090098A1 BANK AWARE MULTI-BIT TRIE 审中-公开
标题翻译：银行智能多位智能
公开(公告)号：WO2012090098A1
公开(公告)日：2012-07-05
申请号：PCT/IB2011/055474
申请日：2011-12-06
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , JAGANNATHAN, Rajesh , ALLEYNE, Brian , LAKSHMIKANTHAN, Ramanathan
发明人： JAGANNATHAN, Rajesh , ALLEYNE, Brian , LAKSHMIKANTHAN, Ramanathan
IPC分类号： H04L12/56 , G06F17/30
CPC分类号： H04L45/54 , H04L45/748
摘要： Embodiments of the invention include a method performed by a bank aware mtrie control module for distributing a plurality of mtrie levels across a plurality of memory banks. The bank aware mtrie control module identifies the plurality of memory banks present and identifies one or more mtrie blocks in one or more mtrie levels, each mtrie block is an array of mtrie nodes associated with an mtrie level. The bank aware mtrie control module stores each mtrie block in one of the plurality of memory banks, all mtrie nodes in a given mtrie block are stored in the same memory bank. For each subsequent mtrie level, the bank aware mtrie control module ensures that each of the mtrie blocks in that mtrie level is stored in one of the plurality of memory banks other than the memory bank storing mtrie blocks of an immediately previous mtrie level.
摘要翻译：本发明的实施例包括由银行感知控制模块执行的用于在多个存储体中分配多个层级的方法。银行感知控制模块识别存在的多个存储器组，并且识别一个或多个层级中的一个或多个存储块，每个mtrie块是与mtrie级相关联的mtrie节点的阵列。银行认证控制模块将每个mtrie块存储在多个存储体之一中，给定mtrie块中的所有mtrie节点都存储在同一存储体中。对于每个后续的mtrie级别，银行感知控制模块确保该mtrie级别中的每个mtrie块都存储在多个存储体之一中，而不是存储有紧前一级mtrie级别的存储体的存储体。

3. 发明申请

WO2012073137A1 HASH COLLISION RESOLUTION WITH KEY COMPRESSION IN A MAC FORWARDING DATA STRUCTURE 审中-公开
标题翻译：在MAC转发数据结构中的主要压缩的HASH冲突解决方案
公开(公告)号：WO2012073137A1
公开(公告)日：2012-06-07
申请号：PCT/IB2011/055037
申请日：2011-11-10
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , JAGANNATHAN, Rajesh , ALLEYNE, Brian , LAKSHMIKANTHAN, Ramanathan
发明人： JAGANNATHAN, Rajesh , ALLEYNE, Brian , LAKSHMIKANTHAN, Ramanathan
IPC分类号： H04L12/56 , G06F17/30
CPC分类号： H04L49/3009
摘要： Embodiments of the invention include a method performed in a media access control (MAC) forwarding control module within a network element for looking up a MAC address and interface (I/F) identifier pair (MAC-I/F pair) from a MAC forwarding data structure that comprises a first tier data structure and a plurality of second tier data structures. The MAC forwarding data structure utilizes compressed keys to index each of the plurality second tier data structures. The compressed key is generated with a desired MAC address and a mask bit list that corresponds with enough bit positions such that all MAC addresses in second tier data structure can be uniquely addressed with just the values of each MAC address in the bit positions listed. As such, the MAC forwarding data structure is constructed so that the total cost of a lookup with the compressed key technique is deterministic and, therefore, 0(1).
摘要翻译：本发明的实施例包括在网络单元内的媒体访问控制（MAC）转发控制模块中执行的方法，用于从MAC转发查找MAC地址和接口（I / F）标识符对（I / F）标识符对（MAC-I / F对）包括第一层数据结构和多个第二层数据结构的数据结构。 MAC转发数据结构利用压缩密钥来索引多个第二层数据结构中的每一个。利用所需的MAC地址和与足够的位位置相对应的掩码位列来生成压缩密钥，使得可以仅仅列出所列位数中的每个MAC地址的值来唯一地寻址第二层数据结构中的所有MAC地址。因此，MAC转发数据结构被构造成使得具有压缩密钥技术的查找的总成本是确定性的，因此是0（1）。

4. 发明申请

WO2012090096A1 ON-CHIP PACKET CUT-THROUGH 审中-公开
标题翻译：片上包裹切割
公开(公告)号：WO2012090096A1
公开(公告)日：2012-07-05
申请号：PCT/IB2011/055422
申请日：2011-12-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CHEN, Edmund , LAKSHMIKANTHAN, Ramanathan , ROZARIO, Ranjit , ALLEYNE, Brian , CHOW, Stephen , WANG, Patrick , HO, Edward , YIP, Thomas , CHEN, Sun Den , FENG, Michael
发明人： CHEN, Edmund , LAKSHMIKANTHAN, Ramanathan , ROZARIO, Ranjit , ALLEYNE, Brian , CHOW, Stephen , WANG, Patrick , HO, Edward , YIP, Thomas , CHEN, Sun Den , FENG, Michael
IPC分类号： H04L12/56
CPC分类号： H04L49/9073 , H04L47/12 , H04L47/2441 , H04L47/32 , H04L49/9036 , H04L49/9063 , H04L49/9078
摘要： Embodiments of the invention include a method for avoiding memory bandwidth utilization during packet processing. The packet processing core receives a plurality of packets. The packet processing core identifies the packet's quality of service (QoS) descriptor. The packet processing core determines that at least one packet should be moved to an off-chip packet stored prior to the packet being transmitted to the egress port. The packet processing core bases that determination, at least in part, on the packet's QoS descriptor. The packet processing core moves the determined packets to the off-chip packet store. The packet processing core determines that at least one packet should not be moved to the off-chip packet store prior to the packet being transmitted to the egress port. This determination is also made, at least in part, based on the packet's QoS descriptor.
摘要翻译：本发明的实施例包括一种用于在分组处理期间避免存储器带宽利用的方法。分组处理核心接收多个分组。分组处理核心识别分组的服务质量（QoS）描述符。分组处理核心确定至少一个分组应该被移动到在分组被发送到出口端口之前存储的片外分组。分组处理核心基于至少部分地确定分组的QoS描述符。分组处理核心将确定的分组移动到片外分组存储。分组处理核心在分组被发送到出口端口之前确定至少一个分组不应该移动到片外分组存储。该决定至少部分地基于分组的QoS描述符进行。

5. 发明申请

WO2014068484A1 DOWNLINK SERVICE PATH DETERMINATION FOR MULTIPLE SUBSCRIPTION BASED SERVICES IN PROVIDER EDGE NETWORK 审中-公开
标题翻译：提供者边缘网络中基于多个订阅服务的下行服务路径确定
公开(公告)号：WO2014068484A1
公开(公告)日：2014-05-08
申请号：PCT/IB2013/059758
申请日：2013-10-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BALASUBRAMANIAN, Chandramouli , KEAN, Brian , OWENS, Peter , APOSTOLOPOULOS, George , LAKSHMIKANTHAN, Ramanathan
IPC分类号： H04L29/08 , H04L12/851
CPC分类号： H04L47/2441 , H04L67/28
摘要： A method performed in a network element of a provider edge network to determine a downlink service path for a downlink packet. The method includes preserving an indication of the downlink service path while processing an uplink packet that has been transmitted from a subscriber end station toward a provider end station. The method also includes receiving the downlink packet at a line card of the network element. The downlink packet has been transmitted from the provider end station toward the subscriber end station. The method further includes determining, at the line card, the downlink service path for the downlink packet by using the indication of the downlink service path that was preserved while processing the uplink packet. The downlink service path is operable to identify a plurality of services and an order in which the plurality of services are to be performed on the downlink packet.
摘要翻译：一种在提供商边缘网络的网元中执行的方法，以确定下行链路分组的下行链路服务路径。该方法包括在处理已经从用户端站向提供者端站发送的上行链路分组的同时保留下行链路业务路径的指示。该方法还包括在网元的线路卡处接收下行分组。下行链路分组已经从提供者端站向用户终端发送。该方法还包括通过使用在处理上行链路分组时保留的下行链路服务路径的指示，在线路卡处确定下行链路分组的下行链路服务路径。下行链路服务路径可操作以识别多个服务以及要在下行链路分组上执行多个服务的顺序。

6. 发明公开

EP2847972A1 A METHOD AND APPARATUS FOR PACKET CLASSIFICATION 审中-公开
标题翻译：包装分类的方法和装置
公开(公告)号：EP2847972A1
公开(公告)日：2015-03-18
申请号：EP13730326.9
申请日：2013-05-02
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： ANAND, Prashant , LAKSHMIKANTHAN, Ramanathan , CHEN, Sunden , XU, Ning
IPC分类号： H04L29/06
CPC分类号： H04L63/0227 , H04L45/745 , H04L47/2441 , H04L47/2483 , H04L63/0263 , H04L63/101 , H04L63/1408
摘要： In one aspect, the present invention reduces the amount of low-latency memory needed for rules-based packet classification by representing a packet classification rules database in compressed form. A packet processing rules database, e.g., an ACL database comprising multiple ACEs, is preprocessed to obtain corresponding rule fingerprints. These rule fingerprints are much smaller than the rules and are easily accommodated in on-chip or other low-latency memory that is generally available to the classification engine in limited amounts. The rules database in turn can be stored in off-chip or other higher-latency memory, as initial matching operations involve only the packet key of the subject packet and the fingerprint database. The rules database is accessed for full packet classification only if a tentative match is found between the packet key and an entry in the fingerprint database. Thus, the present invention also advantageously minimizes accesses to the rules database.

7. 发明公开

EP2915314A1 DOWNLINK SERVICE PATH DETERMINATION FOR MULTIPLE SUBSCRIPTION BASED SERVICES IN PROVIDER EDGE NETWORK 有权
标题翻译：拒绝服务路径确定了几项服务订阅人数基于在服务供应商边缘网络
公开(公告)号：EP2915314A1
公开(公告)日：2015-09-09
申请号：EP13824171.6
申请日：2013-10-29
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： BALASUBRAMANIAN, Chandramouli , KEAN, Brian , OWENS, Peter , APOSTOLOPOULOS, George , LAKSHMIKANTHAN, Ramanathan
IPC分类号： H04L29/08 , H04L12/851
CPC分类号： H04L47/2441 , H04L67/28
摘要： A method performed in a network element of a provider edge network to determine a downlink service path for a downlink packet. The method includes preserving an indication of the downlink service path while processing an uplink packet that has been transmitted from a subscriber end station toward a provider end station. The method also includes receiving the downlink packet at a line card of the network element. The downlink packet has been transmitted from the provider end station toward the subscriber end station. The method further includes determining, at the line card, the downlink service path for the downlink packet by using the indication of the downlink service path that was preserved while processing the uplink packet. The downlink service path is operable to identify a plurality of services and an order in which the plurality of services are to be performed on the downlink packet.

8. 发明申请

WO2016071844A1 EXPLICIT LIST ENCODING OF SPARSE MULTICAST GROUP MEMBERSHIP INFORMATION WITH BIT INDEX EXPLICIT REPLICATION (BIER) 审中-公开
标题翻译：利用位数显示复制（BIER）的SPARSE MULASTAST GROUP成员信息的显式列表编码
公开(公告)号：WO2016071844A1
公开(公告)日：2016-05-12
申请号：PCT/IB2015/058509
申请日：2015-11-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： TIAN, Albert Jining , LAKSHMIKANTHAN, Ramanathan , PRZYGIENDA, Antoni , TANTSURA, Evgeny
IPC分类号： H04L12/741 , H04L12/761
CPC分类号： H04L12/185 , H04L45/16
摘要： A network device executes a method to forward a packet that is encoded using an explicit list encoding of sparse multicast group membership information with Bit Index Explicit Replication. The method includes receiving a packet that includes a bitstring having a list of Bit Forwarding Router IDs (BFR-ids). The method further includes selecting a BFR-id identifying a destination Bit Forwarding Router (BFR) from the list for processing, looking up a forwarding bitmask for the destination BFR and a next-hop to reach the destination BFR in a bit index forwarding table, creating a copy of the packet, clearing the selected BFR-id from the packet, clearing BFR-ids from the packet and the copy of the packet based on the forwarding bitmask, and forwarding the copy of the packet to the next-hop neighbor.
摘要翻译：网络设备执行一种方法来转发使用具有位索引显式复制的稀疏多播组成员信息的显式列表编码进行编码的分组。该方法包括接收包括具有位转发路由器ID（BFR-id）列表的位阵列的分组。该方法还包括从列表中选择标识目的地位转发路由器（BFR）的BFR-id进行处理，查找目的地BFR的转发位掩码和在位索引转发表中到达目的地BFR的下一跳，创建数据包的副本，从包中清除所选的BFR-id，根据转发位掩码清除数据包中的BFR-ID和数据包的副本，并将数据包的副本转发到下一跳邻居。

9. 发明申请

WO2016071843A1 EXPLICIT BLOCK ENCODING OF MULTICAST GROUP MEMBERSHIP INFORMATION WITH BIT INDEX EXPLICIT REPLICATION (BIER) 审中-公开
标题翻译：使用位数显示复制（BIER）的多播组成员信息的显式块编码
公开(公告)号：WO2016071843A1
公开(公告)日：2016-05-12
申请号：PCT/IB2015/058508
申请日：2015-11-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： TIAN, Albert Jining , LAKSHMIKANTHAN, Ramanathan , TANTSURA, Evgeny
IPC分类号： H04L12/741 , H04L12/761
CPC分类号： H04L12/1886 , H04L12/18 , H04L45/16 , H04L45/50 , H04L45/60 , H04L45/74
摘要： A network device executes a method to forward a packet that is encoded using an explicit block encoding of multicast group membership information with Bit Index Explicit Replication. The method includes receiving a packet, where the packet includes a bitstring having a set of blocks, each block including a set identifier field and a SubBitString field. The method further includes selecting a block for processing, finding a first bit position of a SubBitString identifying a destination bit-forwarding router (BFR), looking up a forwarding bitmask for the destination BFR and a next-hop to reach the destination BFR in a bit index forwarding table, creating a copy of the packet, applying a bit-wise AND operation on the copy of the packet with the forwarding bitmask, forwarding the copy of the packet to the next-hop, and applying a bit-wise AND operation on the packet with an inverse of the forwarding bitmask.
摘要翻译：网络设备执行一种方法来转发使用具有比特索引显式复制的多播组成员信息的显式块编码进行编码的分组。该方法包括接收分组，其中分组包括具有一组块的比特序列，每个块包括集合标识符字段和SubBitString字段。该方法还包括选择一个块进行处理，找到识别目的地位转发路由器（BFR）的SubBitString的第一比特位置，查找目的地BFR的转发位掩码和下一跳到达目的地BFR的下一跳位索引转发表，创建数据包的副本，对转发位掩码的数据包副本应用逐位AND操作，将数据包的副本转发到下一跳，并应用逐位AND操作在具有转发位掩码的逆的分组上。

10. 发明申请

WO2016157133A1 METHOD OF PACKET MARKING FOR FLOW ANALYTICS 审中-公开
标题翻译：流动分析的分组标记方法
公开(公告)号：WO2016157133A1
公开(公告)日：2016-10-06
申请号：PCT/IB2016/051861
申请日：2016-03-31
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： TIAN, Albert Jining , LAKSHMIKANTHAN, Ramanathan , TANTSURA, Evgeny
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L69/22 , H04L41/04 , H04L41/5096 , H04L43/022 , H04L43/0852 , H04L43/087 , H04L43/0876 , H04L45/38 , H04L45/50
摘要： A method is implemented by a node of a network domain having a plurality of nodes, where the node functions as an ingress node of the network domain for a data flow. The method enables data flow analysis across the network domain. The method includes receiving a data packet belonging to a data flow at an ingress node of the network domain, determining whether the data packet is to be marked for the data flow analysis, determining whether an egress node of the network domain for the data flow supports data packet marking, marking the data packet with a marking label indicating to supporting nodes in the network domain that the data packet is to be processed for data flow analysis, and forwarding the data packet toward the egress node of the network domain.
摘要翻译：一种方法由具有多个节点的网络域的节点实现，其中节点用作数据流的网络域的入口节点。该方法可实现跨网域的数据流分析。该方法包括：接收属于网域入口节点的数据流的数据包，确定数据包是否被标记为数据流分析，确定数据流的网络域的出口节点是否支持数据包标记，标记数据包，标记标签指示支持网络域中的数据包进行数据流分析，并将数据包转发到网络域的出口节点。

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