Multiport analyzing with time stamp synchronizing

Multiplex communications – Wide area network – Packet switching

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

370 942, 370105, 375228, 371 201, H04J 314

Patent

active

055351930

ABSTRACT:
A plurality of digital transmission network analyzers are arranged to analyze and compare the appearance of a data packet on the plurality of ports of a network. Each analyzer has its own internal clock for time stamping of data packets in addition to other internal timing purposes. In order to synchronize the time stamping of the packet as it appears to each analyzer at a each different port, the clock outputs of the several analyzers are connected together; and a controlling CPU commands one of the analyzers to supply the master clock to the others. That master analyzer then commands the other analyzers to disable or disconnect their own clocks, thereby all of the analyzers involved in a given test are under timing control of the clock of the master analyzer. Packet headers and time stamps are transmitted between analyzers for comparison, analysis, and reporting to the controlling CPU. This analyzer intercommunication is done over a separate bus that interconnects all of the analyzers and the controlling CPU.

REFERENCES:
patent: 4506358 (1985-03-01), Montgomery
patent: 4569042 (1986-02-01), Larson
patent: 4792753 (1988-12-01), Iwai
patent: 4894823 (1990-01-01), Adelmann et al.
patent: 4916694 (1990-04-01), Roth
patent: 4939718 (1990-07-01), Servel et al.
patent: 4998240 (1991-03-01), Williams
patent: 5097469 (1992-03-01), Douglas
patent: 5197127 (1993-03-01), Waclawsky et al.
patent: 5247517 (1993-09-01), Ross et al.
patent: 5260970 (1993-11-01), Henry et al.
patent: 5276529 (1994-01-01), Williams
patent: 5282194 (1994-01-01), Harlow, Jr. et al.
patent: 5347524 (1994-09-01), I'Anson et al.
patent: 5363493 (1994-11-01), Unverrich
patent: 5375159 (1994-12-01), Williams

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multiport analyzing with time stamp synchronizing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiport analyzing with time stamp synchronizing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiport analyzing with time stamp synchronizing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1873807

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.