The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2007
Filed:
Jul. 26, 2002
Rajarshi Gupta, Berkeley, CA (US);
Justin Chueh, Palo Alto, CA (US);
Ravi Tangirala, San Jose, CA (US);
Meera Kasinathan, San Jose, CA (US);
Erik Swenson, San Jose, CA (US);
Rajarshi Gupta, Berkeley, CA (US);
Justin Chueh, Palo Alto, CA (US);
Ravi Tangirala, San Jose, CA (US);
Meera Kasinathan, San Jose, CA (US);
Erik Swenson, San Jose, CA (US);
Extreme Networks, Santa Clara, CA (US);
Abstract
A method and system is provided to enable quality of service across a backplane switch for multicast packets. For multicast traffic, an egress queue manager manages congestion control in accordance with multicast scheduling flags. A multicast scheduling flag is associated with each egress queue capable of receiving a packet from a multicast ingress queue. When the multicast scheduling flag is set and the congested egress queue is an outer queue, the egress queue manager refrains from dequeueing any marked multicast packets to the destination ports associated with the congested outer queue until the congestion subsides. When the congested egress queue is a backplane queue, the egress queue manager refrains from dequeuing any marked multicast packets to the destination ports on the destination blade associated with the congested backplane queue until the congestion subsides.