公开(公告)号：US09258214B2

公开(公告)日：2016-02-09

申请号：US13764257

申请日：2013-02-11

Applicant: Avaya Inc.

Inventor： Srikanth Keesara ,  Roger Lapuh

IPC: H04L12/713 ,  H04L29/12 ,  H04L12/707 ,  H04L12/721 ,  H04L12/751

CPC classification number: H04L45/22 ,  H04L45/02 ,  H04L45/44 ,  H04L61/103

Abstract: A method, apparatus and computer program product for performing optimized distributed routing for stretched data center models through updating route advertisements based on changes to Address Resolution Protocol (ARP) Tables is presented. Port members of an Internet Protocol I (IP) interface or Virtual Local Area Network (VLAN) are distinguished into Access Interfaces which only lead to hosts on said subnet and Trunk Interfaces which lead to other redundant routers on said subnet. In the subnet of a network a network route for the subnet is always advertised. A separate host route corresponding to an Internet Protocol (IP) address of each Address Resolution Protocol (ARP) table record that points to an Access Interface is advertised and route advertisements are changed for a host in said subnet for tracked access interfaces.

Abstract translation: 介绍了一种通过基于地址解析协议（ARP）表的更改来更新路由广告来执行拉伸数据中心模型优化分布式路由的方法，装置和计算机程序产品。 互联网协议I（IP）接口或虚拟局域网（VLAN）的端口成员被分为访问接口，其仅导致所述子网上的主机和导致所述子网上的其他冗余路由器的中继接口。 在网络的子网中，子网的网络路由总是被通告。 通告对应于指向接入接口的每个地址解析协议（ARP）表记录的互联网协议（IP）地址的单独的主机路由，并且为所述子网中的主机为跟踪的接入接口更改路由通告。

公开(公告)号：US09106556B2

公开(公告)日：2015-08-11

申请号：US13763840

申请日：2013-02-11

Applicant: Avaya Inc.

Inventor： Gautam Khera ,  Ludovico Stevens ,  Srikanth Keesara

IPC: H04L12/26 ,  H04L12/721

CPC classification number: H04L45/12

Abstract: A method, apparatus and computer program product for providing the use of an external metric as the primary tie-breaker in ISIS route selections is presented. A set of routes are identified that are to be advertised by the router as external routes within a network. The routes are advertised by the router using a Type Length Variable (TLV), wherein the TLV contains metric information to be used as a first tiebreaker when selecting routes. The network is running an Intermediate System To Intermediate System (ISIS) protocol. The TLV includes a 32-bit or a 64-bit administrative tag sub-TLV, the TLV comprising TLV#135, TLV#235, TLV#236, and TLV#237.

Abstract translation: 提出了一种在ISIS路由选择中提供使用外部度量作为主要连接断路器的方法，装置和计算机程序产品。 一组路由器被标识为由路由器作为外部路由在网络中通告。 这些路由由路由器使用类型长度变量（TLV）通告，其中TLV包含在选择路由时要用作第一个破产者的度量信息。 该网络正在运行中间系统到中间系统（ISIS）协议。 TLV包括32位或64位管理标签子TLV，TLV包括TLV＃135，TLV＃235，TLV＃236和TLV＃237。

公开(公告)号：US20140355409A1

公开(公告)日：2014-12-04

申请号：US13904671

申请日：2013-05-29

Applicant: Avaya, Inc.

Inventor： Deborah Ellen Fitzgerald ,  Srikanth Keesara

IPC: H04L12/703

CPC classification number: H04L45/28 ,  H04L45/22

Abstract: A method, apparatus and computer program product for debugging private Virtual Local Area Networks (VLANs) is provided. In a Connectivity Fault Management (CFM) domain wherein a primary Virtual Local Area Network (VLAN) includes promiscuous ports and wherein a secondary VLAN includes isolated ports, a determination is made at a first network device whether a CFM packet is received on a primary VLAN or a secondary VLAN. When the CFM packet is received on a secondary VLAN, then the CFM packet is responses to on the primary VLAN.

Abstract translation: 提供了一种用于调试专用虚拟局域网（VLAN）的方法，设备和计算机程序产品。 在其中主要虚拟局域网（VLAN）包括混杂端口并且其中辅助VLAN包括隔离端口的连接故障管理（CFM）域中，在第一网络设备处确定在主VLAN上是否接收到CFM分组 或辅助VLAN。 CFM报文在Secondary VLAN上接收到报文，则CFM报文在主VLAN上响应。

公开(公告)号：US20140086252A1

公开(公告)日：2014-03-27

申请号：US13627501

申请日：2012-09-26

Applicant: AVAYA, INC.

Inventor： Srikanth Keesara ,  Shahaji Bhosle

IPC: H04L12/28

CPC classification number: H04L45/66 ,  H04L12/465 ,  H04L12/4658 ,  H04L12/4666

Abstract: A method, apparatus and computer program product for using Backbone Virtual Local Area Network (BVLAN) as Virtual Routing and Forwarding (VRF) Identifier and shared Backbone Media Access Control (BMAC) tables to implement a Shortest Path Bridging (SPB) Layer 3 (L3) Virtual Services Network (VSN) is presented. For routed traffic, a Layer 3 (L3) Virtual Services Network (VSN) is associated with a unique Virtual Local Area Network Identifier (VLAN_ID) value in a first Shortest Path Bridging (SPB) network for routed traffic. The routed traffic comprises traffic sent over an SPB network interface, traffic received from an SPB interface, or traffic forwarded from a first SPB Network interface to a second SPB Network interface.

Abstract translation: 一种使用骨干虚拟局域网（BVLAN）作为虚拟路由和转发（VRF）标识符和共享骨干媒体访问控制（BMAC）表来实现最短路径桥接（SPB）第3层（L3）的方法，设备和计算机程序产品 ）提供虚拟服务网络（VSN）。 对于路由流量，第3层（L3）虚拟服务网络（VSN）与路由流量的第一最短路径桥接（SPB）网络中的唯一虚拟局域网标识符（VLAN_ID）值相关联。 路由流量包括通过SPB网络接口发送的流量，从SPB接口接收的流量，或从第一SPB网络接口转发到第二SPB网络接口的流量。

公开(公告)号：US09806998B2

公开(公告)日：2017-10-31

申请号：US14298011

申请日：2014-06-06

Applicant: Avaya Inc.

Inventor： Srikanth Keesara ,  Sakthivadivu Saraanaraj ,  Lava Lavu

IPC: H04L12/721 ,  H04L12/24 ,  H04L12/725 ,  H04L12/751 ,  H04L12/709

CPC classification number: H04L45/38 ,  H04L41/0659 ,  H04L45/02 ,  H04L45/245 ,  H04L45/304

Abstract: A method, apparatus and computer readable medium for reducing traffic loss when bringing up a switch within a multi chassis switch cluster without using dedicated intra cluster links is presented. A first network device in a cluster discovers at least one path to a second network device in the cluster, wherein the cluster utilizes at least one virtual IST between the first network device and the second network device. The first network device starts an Inter Switch Trunk (IST) synchronization process with the second network device. The first network device installs redirection rules, wherein the redirection rules are used for datapath traffic and are not used for control channel traffic. The first network device determines that the IST synchronization process between the first network device and the second network device has completed, and removes the redirection rules.

公开(公告)号：US20170223103A1

公开(公告)日：2017-08-03

申请号：US15010009

申请日：2016-01-29

Applicant: AVAYA INC.

Inventor： Srikanth Keesara ,  Venkat Dabbara ,  Parthiv Shrimankar ,  Robert Lee

IPC: H04L29/08 ,  H04L12/721

CPC classification number: H04L67/1095 ,  H04L43/026 ,  H04L43/12 ,  H04L45/12

Abstract: A method and apparatus for automated mirroring is presented. In a particular embodiment of a method for automated mirroring, a Network Device running as a Fabric Attach (FA) Server receives an FA Type Length Value (TLV) from an Access Device running as a FA proxy or client. The Access Device is configured to mirror traffic to a Remote Switch Port Analyzer (RSPAN) Virtual Local Area Network (VLAN). The TLV includes a request to associate the RSPAN VLAN with a Service Identifier (I-SID) used to carry mirror traffic in a network. The method includes wherein the FA server receives the mirrored traffic on the RSPAN VLAN. The FA Server signals the I-SID into the network, and detects receive interest in the I-SID. The FA Server delivers the mirrored traffic to devices that expressed a receive interest in the mirrored traffic.

公开(公告)号：US09525624B2

公开(公告)日：2016-12-20

申请号：US13898836

申请日：2013-05-21

Applicant: Avaya Inc.

Inventor： Srikanth Keesara ,  Roger Lapuh

IPC: H04L12/713 ,  H04L12/703

CPC classification number: H04L45/586 ,  H04L45/28

Abstract: A VRRP router group can operate in either a standard VRRP mode or a distributed gateway mode in which all VRRP routers generate VRRP control packets but transmit those packets only to local access network-side hosts. The rate of VRRP control packet generation may be decreased in the distributed gateway mode relative to the standard mode. Moreover, VRRP router CPUs may cease processing of VRRP control packets in the distributed gateway mode.

Abstract translation: VRRP路由器组可以在标准VRRP模式或分布式网关模式下运行，其中所有VRRP路由器都生成VRRP控制报文，但只将这些报文发送到本地接入网侧主机。 在分布式网关模式下，相对于标准模式，VRRP控制包生成速率可能会降低。 此外，VRRP路由器CPU可能会在分布式网关模式下停止处理VRRP控制数据包。

公开(公告)号：US20160149715A1

公开(公告)日：2016-05-26

申请号：US14550237

申请日：2014-11-21

Applicant: Avaya Inc.

Inventor： Srikanth Keesara ,  David Johnson, JR. ,  Julie Alma Carleton

IPC: H04L12/18 ,  H04L12/721

CPC classification number: H04L12/18 ,  H04L45/12 ,  H04L45/16

Abstract: A method and apparatus for providing Protocol-Independent Multicast (PIM) snooping for a Shortest Path Bridging Multicast (SPBM) Network is presented. An ingress Backbone Edge Bridge (BEB) device of a Shortest Path Bridging (SPB) network having at least one egress BEB coupled to at least one PIM network performs the following operations. The egress BEB, snoops join and prune messages for a multicast stream in the SPB network. A multicast tree is built in the SPB network for the multicast stream in accordance with the join and prune messages. The multicast stream is forwarded through the SPB network in accordance with the multicast tree.

Abstract translation: 提出了一种用于为最短路径桥接组播（SPBM）网络提供协议无关组播（PIM）窥探的方法和装置。 具有耦合到至少一个PIM网络的至少一个出口BEB的最短路径桥接（SPB）网络的入口骨干边缘桥（BEB）设备执行以下操作。 出口BEB，侦听在SPB网络中加入和修剪多播流的消息。 根据加入和剪枝消息，SPB网络中组播树内置了多播流。 组播流根据组播树通过SPB网络转发。

公开(公告)号：US20160149714A1

公开(公告)日：2016-05-26

申请号：US14549930

申请日：2014-11-21

Applicant: AVAYA INC.

Inventor： Srikanth Keesara ,  Gautam Khera ,  Rama Suryanarayana Appalla

IPC: H04L12/18 ,  H04L12/721

CPC classification number: H04L12/18 ,  H04L45/12 ,  H04L45/16

Abstract: A method apparatus and computer readable medium for preforming SPB-PIM multicast interactions is presented. A Backbone Edge Bridge (BEB) in a Shortest Path Bridging (SPB) network discovers a multicast stream originating within a Protocol-Independent Multicast (PIM) network. The BEB sends multicast information to a Rendezvous Point (RP) in the PIM network. The BEB advertises a multicast stream learned from the RP into the SPB network. The BEB receives an update that includes a receiver interest in said multicast stream and initiates PIM join procedures for permitting the receiver to receive the multicast stream.

Abstract translation: 提出了一种用于预处理SPB-PIM多播交互的方法装置和计算机可读介质。 在最短路径桥接（SPB）网络中的骨干边缘网桥（BEB）发现源于协议无关组播（PIM）网络中的组播流。 BEB将组播信息发送到PIM网络中的集合点（RP）。 BEB将从RP学到的组播流通告给SPB网络。 BEB接收包括对所述多播流的接收者兴趣的更新，并发起用于允许接收机接收多播流的PIM连接过程。

公开(公告)号：US09154409B2

公开(公告)日：2015-10-06

申请号：US13904671

申请日：2013-05-29

Applicant: Avaya, Inc.

Inventor： Deborah Ellen Fitzgerald ,  Srikanth Keesara

IPC: H04L12/28 ,  H04L12/703 ,  H04L12/707

CPC classification number: H04L45/28 ,  H04L45/22

Abstract: A method, apparatus and computer program product for debugging private Virtual Local Area Networks (VLANs) is provided. In a Connectivity Fault Management (CFM) domain wherein a primary Virtual Local Area Network (VLAN) includes promiscuous ports and wherein a secondary VLAN includes isolated ports, a determination is made at a first network device whether a CFM packet is received on a primary VLAN or a secondary VLAN. When the CFM packet is received on a secondary VLAN, then the CFM packet is responses to on the primary VLAN.

Abstract translation: 提供了一种用于调试专用虚拟局域网（VLAN）的方法，设备和计算机程序产品。 在其中主要虚拟局域网（VLAN）包括混杂端口并且其中辅助VLAN包括隔离端口的连接故障管理（CFM）域中，在第一网络设备处确定在主VLAN上是否接收到CFM分组 或辅助VLAN。 CFM报文在Secondary VLAN上接收到报文，则CFM报文在主VLAN上响应。