Adtran Gmbh

Chad Anthony Dieselberg

Daniel Josiah Barnes

Arlynn Wayne Wilson

Andrew T Ruble

Philip David Williams

Marc Kimpe

Milton Jay Johnson

Ronald Marc Zuckerman

Nagaraj Padur

Methods, systems, and apparatus for selective MAC address learning are disclosed. In one aspect, multiple different packets are received by a telecommunications device. The multiple different packets include different source MAC addresses. For each of the multiple different packets, a distribution type is determined. The distribution type is one of a one-to-one distribution type or a one-to-many distribution type. Based on the determined distribution type of the particular packet, a forwarding table of the telecommunications device is selectively updated. When the particular packet has the one-to-many distribution type, a source MAC address that is included in the particular packet is not stored in the forwarding table. When the particular packet has the one-to-one distribution type, the source MAC address that is included in the particular packet is stored in the forwarding table.

Selective MAC address learning

Methods, systems, and apparatus for diagnosing and optimizing an Internet Protocol television (IPTV) network are disclosed. In one aspect a method includes receiving a network address of a device; detecting a network topology associated with the device based on the network address of the device; identifying a configuration parameter setting associated with the network topology that is outside of a range of acceptable configuration parameter settings for the network topology; and providing output specifying the configuration parameter setting that is outside of the range of acceptable configuration parameter settings.

Diagnosing and optimizing network-wide IPTV configurations

Methods, systems, and apparatus for restricting use of a network element outside an authorized location range are disclosed. In one aspect a method includes obtaining, for a network element of a passive optical network, an identifier and ranging information corresponding to a present location of the network element; identifying, from a database and based on the identifier of the network element, stored ranging information specifying a previous location of the network element; determining, based on a comparison of the ranging information with the stored ranging information, that the location of the network element has changed more than a specified amount; and outputting an alert in response to determining that the location of the network element has changed more than a specified amount.

Managing network access based on ranging information

The present disclosure generally pertains to systems and methods for enabling leaf isolation in a multi-node tree network. In one exemplary embodiment, an Ethernet virtual network (EVC) system has a multi-node E-Tree network comprising a plurality of nodes (e.g., switches), including at least one ingress node and at least one egress node. The ingress node is configured to receive a data packet to be communicated through the E-Tree network and to modify a field, such as the tag protocol identifier (TPID), in the packet's header to indicate whether the data packet is received by the ingress node via a leaf port. As the data packet is communicated through the E-Tree network, the nodes determine the leaf status of the packet based on the modified field thereby enabling the nodes to enforce leaf isolation rules. The egress node upon receiving the packet is configured to adjust the modified field as appropriate such that the field on egress matches the field on ingress. Accordingly, the use of the field as a leaf indicator in the E-Tree network should not affect the ability of downstream components to properly handle the data packet.

Systems and methods for enabling leaf isolation in a multi-node tree network

Embodiments of the present disclosure generally pertain to systems and methods for controlling multicast bandwidth. A communication system in accordance with an exemplary embodiment of the present disclosure comprises a network access device (NAD) having bandwidth (BW) expansion logic. The BW expansion logic is configured to automatically calculate the expansion ratio for a multicast stream based on various network parameters, such as layer 1 and 2 information, network packet size, and network transmission rate. Based on the expansion ratio, the BW expansion logic determines the actual transmission rate for transmitting the multicast stream across a subscriber link. The NAD then accepts or rejects join requests based on whether the sum of the current allocated link rate and the actual transmission rate exceed a rate threshold for the link.

Growing community of inventors

Madison, AL, United States of America

Chad Anthony Dieselberg