33 results about "Private VLAN" patented technology

A Multicast Listener Discovery (MLD) protocol query and / or report snooping process is modified to appropriately map secondary PVLAN identifiers to corresponding primary PVLAN identifiers, thereby accommodating other system elements that are otherwise unaware of primary / secondary PVLAN distinctions. Special cases are also accommodated where reverse path forwarding (RPF) checks in support of multicast operation might otherwise fail due to primary / secondary PVLAN distinctions. Additional steps are taken to ensure that PVLAN information properly accounts for changes in configuration and / or location of various network hosts.

A PVLAN having a primary and secondary VLAN's where the primary and secondary VLAN's have ports and the users connected to those ports. The MAC addresses of those users are learned in the primary or the secondary VLAN's and together with the port designation are stored preferably in tables associated with the VLAN's and the associated VLAN's. Processes are provided that replicate the tables in the other VLAN's so that the information necessary to transfer packets between source and destination ports is available to the associated VLAN's.

A PVLAN having a primary and secondary VLAN's where the primary and secondary VLAN's have ports and the users connected to those ports. The MAC addresses of those users are learned in the primary or the secondary VLAN's and together with the port designation are stored preferably in tables associated with the VLAN's and the associated VLAN's. Processes are provided that replicate the tables in the other VLAN's so that the information necessary to transfer packets between source and destination ports is available to the associated VLAN's.

A method for creating a set of virtual machines on a public datacenter. The method, from a first network controller of a private network, commands a second network controller of the public datacenter to create the virtual machines. The method, from the first network controller of the private network, communicates with the second network controller of the public datacenter to determine a type of the second network controller. When the first network controller includes instructions for using application programming interfaces (APIs) of the type of the second network controller, the method uses the APIs to set up a VLAN for the set of virtual machines in order to allow the virtual machines of the set of virtual machines to communicate securely with each other without sending the communications through the private network. In some embodiments, the VLAN is a private VLAN (PVLAN).

One embodiment of the present invention provides a switch. During operation, in a network with a private VLAN configuration, the switch allows a congestion notification message with an isolated virtual local area network identifier (VLAN ID) to be forwarded via an isolated VLAN port.

Hosted searching of different local area network (LAN) information is described. The apparatus for hosted searching of different private LAN information includes a LAN crawler to automatically and repeatedly crawl a LAN having multiple devices, and a hosted on-demand search system including a set of one or more centralized-search servers to create and synchronize a separate private search database for each of the private LANs based on received reports from of different instances of the LAN crawler deployed on the multiple private LANs, at least some of which are operated by different entities.

The invention discloses a private network VLAN information management method and device, which is applied to QinQ network. The private network VLAN table entry is maintained according to the private network VLAN information carried in the exchanged messages, and compared with the prior art, the QinQ VLAN configuration operation on the core switching device is reduced.

The invention provides a method and a device for allocating network resources of virtual machines. The method comprises that a first physical host receives virtual information resource request messages sent by a user, and the virtual machine resource request messages are used for requesting for allocating network resources of at least one virtual machine; the first physical host allocates private virtual local area network (VLAN) resources for the user in a private VLAN resource pool of the first physical host if the virtual machine resource request messages request for allocating network resources of one virtual machine, and the private VLAN resources are used for separating the virtual machine in two-layer networks; and if the virtual machine resource request messages request for allocating network resources of at least two virtual machines, the first physical host allocates community VLAN resources for the user in a community VLAN resource pool of the first physical host, and the community VLAN resources are used for being communicated with the virtual machine in the two-layer networks. A great many user demands are met through the method and the device.

It is disclosed a method for monitoring traffic in a private VLAN, the traffic bidirectionally propagating across the private VLAN through a sequence of nodes sequentially connected by a primary VLAN and a secondary VLAN, the sequence of nodes comprising a first node and a second node, wherein the method comprises: transmitting a monitoring message from the first node to the second node either along the primary VLAN or the secondary VLAN, according to a first criterion based upon a type of the first node; receiving the monitoring message at the second node; and upon reception of the monitoring message at the second node, transmitting a reply message from the second node to the first node either along the primary VLAN or the secondary VLAN, according to a second criterion based upon a type of the second node and upon a VLAN different from the VLAN from which the monitoring message has been received.