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:
Jun. 15, 2010
Filed:
Jan. 23, 2006
Mitesh Dalal, Santa Clara, CA (US);
Randall R. Stewart, Chapin, SC (US);
Amol R. Khare, Sunnyvale, CA (US);
Vineet Dixit, Mountain View, CA (US);
Srinivas Subramanian, San Jose, CA (US);
Mitesh Dalal, Santa Clara, CA (US);
Randall R. Stewart, Chapin, SC (US);
Amol R. Khare, Sunnyvale, CA (US);
Vineet Dixit, Mountain View, CA (US);
Srinivas Subramanian, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A network element implementing a method for determining an optimal maximum transmission unit (MTU) value on a path between two nodes in a network is described. A sending node interested in learning the optimal MTU path value allows fragmentation of datagrams sent on the path, selects an initial MTU, and sends one or more data packets to a receiving node. Upon receiving the data the receiver determines if fragmentation occurred. If no fragmentation occurred then the MTU path selected is the optimal MTU for the given path between the nodes. If fragmentation did occur then the sender is notified that the selected MTU was not the optimal MTU for the path. Either the receiver proposes a new MTU for the path, or the sender selects a new, smaller MTU. The process repeats until the receiver detects no fragmentation.