Appeal No. 1998-3405
Application No. 08/378,745
BACKGROUND
The appellant's invention relates to a system for monitoring loss metrics in a
communication network. An understanding of the invention can be derived from a reading
of exemplary claim 57, which is reproduced below.
57. An apparatus for measuring performance of a port within a
communication network having a plurality of ports, said ports for individually
interfacing with attached stations or devices, said apparatus comprising:
a first packet detecting circuit operable within said port of said
network for detecting a message packet entering said port, said first packet
detecting circuit coupled to an input communication stream to said port;
a second packet detecting circuit operable within said port for
detecting a message packet exiting said port, said second packet detecting
circuit coupled to an output communication stream from said port; and
a counter for maintaining a count value indicating an amount of
messages lost or corrupted by said port and indicating an amount of
messages lost or corrupted by said network, said counter communicatively
coupled to said first packet detecting circuit and communicatively coupled to
said second packet detecting circuit.
1
The (prior) art reference of record relied upon by the examiner in rejecting the
appealed claims is:
Dawson 5,390,188 Feb. 14, 1995
Claims 57-88 stand rejected under 35 U.S.C. § 101 as claiming the same invention
as that of claims 1-56 of prior U.S. Patent 5,390,188 to Dawson.
This is the patent issued from the parent application 08/101,390, filed Aug. 2, 1993, from which1
the present application is a continuation application under 37 CFR 1.60.
2
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007