Cisco Technology, Inc.

Harold E Bamford

Ted R Mila

An example method is provided and includes receiving, from a host device, a first signal over a two-wire bus to an address on the two-wire bus corresponding to a small form factor (XFP) module, the host device being located outside the XFP module, the two-wire bus coupling the host device with a first controller inside the XFP module and a second controller inside the XFP module that share the address such that the first controller and the second controller receive the first signal, and blocking a second signal from the second controller to the host device using digital isolation buffers. A third signal from the first controller to the host device over the two-wire bus is not blocked. In specific embodiments, the first controller includes a XFP compliant controller and the second controller includes an optical controller.

System and method for monitoring two-wire communication in a network environment

An example method is provided and includes receiving a first signal transmitted to an address on a two-wire bus from a master device, where the two-wire bus couples the master device with a first slave and a second slave that share the address such that the first slave and the second slave receive the first signal. The method includes blocking a second signal from the second slave to the master device using digital isolation buffers. In particular embodiments, the digital isolation buffers are configured between the master device and the second slave. In addition, the two-wire bus may include a clock line and a data line. The digital isolation buffers may include a first digital isolation buffer located on the clock line between the master device and the second slave, and a second digital isolation buffer located on the data line between the master device and the second slave.

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Woodridge, IL, United States of America

Harold E Bamford