Alcatel Lucent

Facebook, Inc.

Alcatel

Christian Marie Adelin Hublet

Christele Bouchat

Sven Ooghe

Riza Cetin

Dirk Eugène Ida Ooms

Jeremy De Clercq

Robert Nicolas Louis Peschi

Paul Theo Maria Reynders

Managing a plurality of communication devices in an access network by successively establishing a layer two point-to-point layer two connection from an access unit to each of the communication devices of the plurality of communication devices during a management phase and establishing a cross-connection for the layer two point-to-point connection to a permanent layer two connection between the access unit and a management server.

Method for management of communication devices in an access network and a related access unit

Managing a plurality of Communication devices in an access network by successively establishing a temporary point-to-point layer two connection from a management server to each of the communication devices of the plurality of communication devices during a management phase.

Method and apparatuses for directing multicast traffic in an Ethernet network include sending a multicast message upstream to a metro access node, performing IGMP snooping at the metro access node and assigning a multicast VLAN tag to the multicast message, performing IGMP snooping at an Ethernet switch disposed upstream to determine each port used for a corresponding multicast group address and multicast VLAN tag associated with the multicast group address, receiving the multicast message at an access server or edge router and sending the multicast message including the multicast group address and the multicast VLAN tag, downstream to a port based on that information, thereby avoiding duplication of the multicast message to another port other than the port associated with the multicast VLAN tag.

Method and apparatus of directing multicast traffic in an Ethernet MAN

The present invention relates to an access unit for coupling a plurality of subscribers to a data communication network, and comprising an auto-configuration control unit adapted to learn, from first auto-configuration data issued by an auto-configuration server and transiting through said access unit towards a particular subscriber coupled to said access unit, a particular network address as being dynamically assigned to said particular subscriber. An access unit according to the invention is characterized in that said auto-configuration control unit is further adapted to learn, from second auto-configuration data transiting through said data communication network, said particular network address as being newly assigned to another subscriber, and in that said access unit further comprises an auto-configuration preemption unit coupled to said auto-configuration control unit, and adapted thereupon to issue an auto-configuration control signal towards said particular subscriber, whereby a new auto-configuration session is initiated between said particular subscriber and said auto-configuration server, and further whereby a new network address is dynamically assigned to said particular subscriber.

Detection of duplicated network addresses

The present invention relates to a Label distribution method for distributing a label between a first Multi-protocol Label Switching (MPLS) network element and a second peering MPLS network element in an MPLS network. The first MPLS network element adds an unused label to the first data-packet DPof the at least one data-packet of the single flow before forwarding the at least one data-packet of the single flow, the unused label not yet associated with or used for identifying a context of said single flow. The second MPLS network element subsequently determines a context for the unknown label retrieved from the data-packets, using a predetermined algorithm. The second MPLS element then couples the unused label and the context determined using the predetermined algorithm.

Multiprotocol label switching label distribution method, a related first multiprotocol label switching network element and a related second multiprotocol label switching network element

Growing community of inventors

Lochristi, Belgium

Christian Marie Adelin Hublet