Forwarding table optimization with flow data

Patent metadata

Field	Value
Publication number	US-9106443-B2
Application number	US-201213661624-A
Country	US
Kind code	B2
Filing date	Oct 26, 2012
Priority date	Oct 26, 2012
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

In one embodiment, a method includes receiving from a server, flow data for a plurality of flows at a network device, the flow data comprising for each flow, a destination address and a time indicating when a last packet was processed for the flow at the server, updating a flow table at the network device, identifying one of the flows in the flow table as an inactive flow, and removing a route for the inactive flow from a forwarding information base at the network device. An apparatus and logic are also disclosed herein.

First claim

What is claimed is:

1. A method comprising:
receiving from a server, exported flow data for a plurality of flows at a network device, the exported flow data comprising for each of said flows, a destination address and a time indicating when a last packet was processed for said flow at the server;
updating a flow table at the network device;
identifying one of said flows in the flow table as an inactive flow; and
removing a route for said inactive flow from a forwarding infor…

Assignees

• Cisco Tech Inc

Inventors

• Liang Yaonan
• Ramesh Chengelpet V
• Murthy Ganesh P
• Zhang Ming
• Nataraja Rajesh B

Classifications

• H04L45/02

  Electricity · mapped topic

• H04L45/54

  Electricity · mapped topic

• H04L45/7457

  Electricity · mapped topic

• H04L12/4625 Primary

  Electricity · mapped topic

• H04L45/74591

  Electricity · mapped topic