Programmable packet sampling for network management

Details Programmable packet sampling for network management Programmable packet sampling for network management

1995-05-11

1996-09-24

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 97, 3701053, 375373, 380 48, H04J 306

Patent

active

055598013

ABSTRACT:
A sampling repeater implementing a data packet sampling schedule includes a repeater front-end, a transmitter and a sampler. The transmitter, responsive to disrupt control signals, retransmits a data packet in a disrupted form, or an undisrupted form, to a management unit coupled to a management port. When one of the disrupt control signals are asserted, the data packet is retransmitted undisrupted as a sample packet. The management unit processes the sample packet and extracts any desired statistics. When none of the disrupt control signals are asserted, the disrupted data packet is retransmitted to the management unit. The disrupted data packet fails error checking and is ignored. The sampler periodically, according to the sampling schedule, asserts one of the disrupt control signals, to pass sample packets to the management unit. Thus, the management unit only processes a subset of the input data packets, rather than every data packet.

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