Stacy A Martin

US Patent:

20130258858, Oct 3, 2013

Filed:

Mar 30, 2012

Appl. No.:

13/435364

Inventors:

Zachariah Cherian - Cupertino CA, US
Eric Tsoh-Chang Chao - Santa Clara CA, US
Neal Kaushal Gokli - Sunnyvale CA, US
Stacy Lee Martin - Fremont CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

H04L 12/26

US Classification:

370241

Abstract:

Methods and apparatus for compensating for time-based sampling using packet elimination are disclosed herein. An example method may be implemented in a network device communicatively connected to a network. The method may include: receiving a packet over the network at a monitoring point; replicating the received packet; determining whether to sample the replicated packet using a time-based sampling scheme; upon determining that the replicated packet should be sampled, queuing the replicated packet to a port of the network device; determining whether to eliminate the queued packet by comparing a configured sample rate with a current sample rate; upon determining that the current sample rate is less than the configured sample rate, exporting the queued packet from the network device; and upon determining that the current sample rate is greater than or equal to the configured sample rate, dropping the queued packet.