Fault tolerant communication in a TRILL network

Patent metadata

Field	Value
Publication number	US-8948003-B2
Application number	US-201113315443-A
Country	US
Kind code	B2
Filing date	Dec 9, 2011
Priority date	Jun 17, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

Each of first and second bridges of a data network having respective external links to an external node implement a network bridge component that forwards traffic inside the network and a virtual bridge component that forwards traffic outside of the network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are redirected via the ISL in response to a link-down condition of one of the external links.

First claim

What is claimed is:

1. A switch, comprising:
a plurality of ports;
a switch fabric coupled to the plurality of ports;
a switch controller that controls switching of data frames between the plurality of ports via the switch fabric, wherein the switch controller is configured to:
implement a network bridge component that forwards traffic inside a data network and a virtual bridge component that forwards traffic outside of the data network via external links;
form a virtual br…

Assignees

• Kamath Dayavanti G
• Kamble Keshav
• Leu Dar-Ren
• Pandey Vijoy A
• IBM

Inventors

• Kamath Dayavanti G
• Kamble Keshav
• Leu Dar-Ren
• Pandey Vijoy A

Classifications

• H04L45/245

  Electricity · mapped topic

• H04L45/28

  Electricity · mapped topic

• H04L41/0654 Primary

  Electricity · mapped topic

• Y02B60/33

  Cross-Sectional Technologies · mapped topic

• H04L45/66 Primary

  Electricity · mapped topic