Patent application number | Description | Published |
20080205302 | Preventing data traffic connectivity between endpoints of a network segment - Various systems and method of preventing data traffic connectivity between endpoints of a network segment are disclosed. One method involves receiving a segment protocol message from a first segment port within a network segment, which includes a plurality of network devices. In response to receipt of the segment protocol message, which can indicate whether connectivity is present between the segment endpoints via the network segment, a second segment port can be operated in a blocked state. Operating the second segment port in the blocked state prevents data plane connectivity via the network segment. | 08-28-2008 |
20090122718 | GLOBAL AUTO-CONFIGURATION OF NETWORK DEVICES CONNECTED TO MULTIPOINT VIRTUAL CONNECTIONS - A method involves receiving information identifying one or more virtual connections (VCs) available within a network and one or more IP subnets. The information is received by the first of several nodes coupled by the network and identifies either (or both) a first VC that is not locally available at the first node and a first IP subnet that is not configured on the first node. Information identifying a global topology of the network is generated, based upon the received information. The global topology includes each of several active VCs within the network and each of several IP subnets configured on the nodes coupled by the network. One of the IP subnets is then assigned to the one of the VCs, based upon the global topology of the network, until all of the IP subnets are assigned, each to a unique VC. | 05-14-2009 |
20090125617 | LOCAL AUTO-CONFIGURATION OF NETWORK DEVICES CONNECTED TO MULTIPOINT VIRTUAL CONNECTIONS - Various systems and methods for automatically configuring network devices coupled to a network that provides (or is capable of providing) multipoint virtual connections are disclosed. One such method involves receiving information identifying a plurality of virtual connections (VCs) available within a network. The method identifies a set of one or more nodes that are configured with one of several Internet Protocol (IP) subnets and that have access to one of the VCs, and then assigns each of the IP subnets to a unique one of the VCs. | 05-14-2009 |
20130176898 | ETHERNET LOCAL MANAGEMENT INTERFACE (E-LMI) - An Ethernet local management interface (E-LMI) protocol for use at a user-to-network interface (UNI) of a Metro Ethernet Network (MEN) is disclosed. The E-LMI protocol allows configuration and status information for the services at the UNI to be transferred from the MEN to a customer edge device coupled to the MEN at the UNI. Various embodiments involve sending or receiving a message via a User-to-Network Interface (UNI) of a Metro Ethernet Network (MEN). A customer edge device extracts configuration and status information for the services at the UNI from a received message. The configuration and status information can correspond to a multipoint Ethernet Virtual Connection (EVC). | 07-11-2013 |