公开(公告)号：US09106525B2

公开(公告)日：2015-08-11

申请号：US14025732

申请日：2013-09-12

Applicant: Cisco Technology, Inc.

Inventor： Anantha Ramaiah ,  Chandrashekhar Appanna ,  Amol Khare

IPC: H04L12/24 ,  H04L29/06 ,  H04L29/14

CPC classification number: H04L41/0668 ,  H04L69/16 ,  H04L69/40

Abstract: A system and method supporting efficient, scalable stateful switchover of transport layer connections in a telecommunications network element. One method involves receiving, at a network element comprising an active transport protocol process coupled to a standby protocol process, a request to configure a first transport layer connection maintained at the active transport protocol process for stateful switchover; receiving an event associated with the first transport layer connection; creating a message containing replicated event information based on the received event; sending the message to the standby transport protocol process; and processing the message at the standby transport protocol process, wherein the standby transport protocol process replicates state information for the first connection.

Abstract translation: 一种支持电信网络元件中传输层连接的有效，可扩展的状态切换的系统和方法。 一种方法包括在包括与备用协议进程相关联的活动传输协议进程的网络元件处接收配置在活动传输协议进程处维持的用于状态切换的第一传输层连接的请求; 接收与所述第一传输层连接相关联的事件; 基于接收到的事件创建包含复制事件信息的消息; 将消息发送到备用传输协议进程; 以及在所述备用传输协议过程处理所述消息，其中所述备用传输协议进程复制所述第一连接的状态信息。

公开(公告)号：US09225640B2

公开(公告)日：2015-12-29

申请号：US14019728

申请日：2013-09-06

Applicant: Cisco Technology, Inc.

Inventor： Ali Sajassi ,  Keyur Patel ,  Chandrashekhar Appanna ,  Stefano Previdi

IPC: H04L12/28 ,  H04L12/741 ,  H04L12/751 ,  H04L12/715 ,  H04L12/723

CPC classification number: H04L45/745 ,  H04L45/02 ,  H04L45/04 ,  H04L45/50

Abstract: In one embodiment, a method includes receiving, by a first autonomous system border router (ASBR) of a first autonomous system (AS), a first plurality of provider-provisioned media access control (B-MAC) addresses via Interior Border Gateway Protocol (I-BGP). Each of first plurality of B-MAC addresses is associated with a provider edge (PE) device of the first AS. The first ASBR sends the first plurality of B-MAC addresses to a second ASBR of a second AS using Exterior Border Gateway Protocol (E-BGP). The first ASBR also receives via E-BGP a second plurality of B-MAC addresses each of which is associated with a PE device of the second AS. The first ASBR then distributes the second plurality of B-MAC addresses to each of the PE devices of the first AS using I-BGP.