Patents Assigned to 3C
  • PACKET FORWARDING
    Publication number: 20160197824
    Abstract: A controller of a virtual switch system receives an uplink packet forwarded by a SDN switch hosted on a server from a VM (virtual machine) hosted on the server. The controller determines an outgoing interface from at least two uplink interfaces on the SDN switch respectively corresponding to aggregated member ports of a physical switch by using an aggregation algorithm according to the uplink packet. The controller generates a first flow table entry and sends the first flow table entry to the SDN switch, wherein the first flow table entry is to instruct the SDN switch to forward a received uplink packet to the physical switch through the outgoing interface.
    Type: Application
    Filed: September 24, 2014
    Publication date: July 7, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventors: Tao LIN, Weichun REN, Lianlei ZHANG, Shaobo WU, Xianghui ZHANG
  • MESSAGE FORWARDING IN A VIRTUAL LOCAL AREA NETWORK
    Publication number: 20160191462
    Abstract: In an example, a method for message forwarding in a network includes a first network device learning Media Access Control (MAC) address information received from a second network device. The MAC address information includes a Virtual Local Area Network (VLAN) identifier (ID), an aggregated MAC address, and an aggregated MAC address mask. The first network device receives a message addressed to the VLAN ID and a destination MAC address, and forwards the message to the second network device according to the MAC address information.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 30, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventors: Yi WANG, Wei WANG, Zhen MA
  • WORK MODE NEGOTIATION
    Publication number: 20160191311
    Abstract: A work mode negotiation method is disclosed. A core backbone (CB) device transmits a Mode Negotiate Request packet through an Ethernet port to a port extender (PE) device, wherein the Mode Negotiate Request packet carries a set of identifications of the PE devices for cascade. Next, the CB device receives a Mode Negotiate Reply packet through the Ethernet port sent by the PE device, and transmits a Mode Negotiate Acknowledge packet through the Ethernet port to the PE device. Finally, the CB device changes a current work mode of the Ethernet port from an Ethernet mode to a cascade mode after transmitting the Mode Negotiate Acknowledge packet.
    Type: Application
    Filed: September 2, 2014
    Publication date: June 30, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Minghui WANG
  • FORWARDING A DHCP PACKET
    Publication number: 20160191460
    Abstract: According to an example, a relay device receives a DHCP request packet sent from a DHCP client, in which the DHCP request packet includes a user information sub-option including a node identifier of the DHCP client. The relay device adds a node identifier of the relay device and path information of receiving the DHCP request packet by the relay device to a relay agent information sub-option in the DHCP request packet, and forwards the DHCP request packet to a DHCP server, so that the DHCP server determines network topology according to the user information sub-option and the relay agent information sub-option.
    Type: Application
    Filed: September 11, 2014
    Publication date: June 30, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Xiaohui CUI
  • TRANSLATING NETWORK ADDRESS
    Publication number: 20160182444
    Abstract: In a process of establishing a tunnel between a Hub device and a Spoke device, the Hub device in a DVPN obtains a public address and port information of a device in a public network after the public address and the port information are translated through a NAT device. The Hub device transmits the public address and the port information of the Spoke device to a server in the DVPN, so that another Spoke device obtains the public address and the port information to establish a direct tunnel with the Spoke device.
    Type: Application
    Filed: August 27, 2014
    Publication date: June 23, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Yu MAO
  • DETECTING NICKNAME CONFLICT
    Publication number: 20160173362
    Abstract: After a RB in a TRILL network starts or establishes neighbor relationships with other RBs, the RB sends a nickname conflict detection packet. After receiving the packet, a DRB replies with a response packet carrying nickname information corresponding to all LSPs in the LSDB to the RB. The RB receives the response packet sent from the DRB, checks whether a nickname has a conflict with nicknames of other RBs and regenerates a nickname that is not conflict with the nicknames of other RBs.
    Type: Application
    Filed: May 20, 2014
    Publication date: June 16, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Jin QU
  • ADJUSTING VIRTUAL MACHINE RESOURCES
    Publication number: 20160164828
    Abstract: In an example of the present disclosure, a method for adjusting virtual machine resources is provided. A VIP for a virtual service is distributed, and a scheduling policy and virtual machines (VM) for the VIP may be configured. The VIP and the VMs corresponding to the VIP are configured on an underlying physical device. When status information of the VIP is received, a new VM may be added into the VMs corresponding to the VIP in response to the determination that the VIP is overloaded based on the status information of the VIP. The scheduling policy of the VIP may be used to distribute bearer services to the VMs corresponding to the VIP.
    Type: Application
    Filed: August 22, 2014
    Publication date: June 9, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Songer SUN
  • IMPLEMENTING AN ACCESS CONTROLLER POOL
    Publication number: 20160165523
    Abstract: According to an example, in an AC pool including a MAC and a plurality of LACs registered on the MAC, after a first LAC is registered on the MAC, the MAC issues a first traffic rule to the first LAC, wherein the first traffic rule redirects a discovery packet sent from an AP to the MAC. When receiving the discovery packet sent from the AP or receiving a discovery packet sent from the AP and forwarded via a LAC, the MAC selects, from a plurality of the LACs, a second LAC for handling the AP. The MAC generates a second traffic rule associated with the AP and the second LAC, and issue the second traffic rule to a plurality of the LACs, so that when another LAC receives a communication tunnel protocol packet sent from the AP, the other LAC redirects the communication tunnel protocol packet to the second LAC.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 9, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Weiwei GUO
  • IMPLEMENTING NETWORK COMMUNICATION
    Publication number: 20160164845
    Abstract: When a node device receives a packet transmitted from a device connecting with the node device, the node device searches a public network address of a next hop in a first table according to a private address of the next hop, searches for an IPsec security association (SA) in a second table according to the public network address searched out, performs IPsec encapsulation for the received packet by use of the IPsec SA corresponding to the public network address, and transmits the packet.
    Type: Application
    Filed: August 27, 2014
    Publication date: June 9, 2016
    Applicant: Hangzhou H3C Technologies Co., ltd.
    Inventor: Yu MAO
  • FLOW TABLE ENTRY IN SOFTWARE DEFINED NETWORKING
    Publication number: 20160156552
    Abstract: According to an example an instruction set of a flow table entry to forward a packet includes an action of inserting a forwarding path link table in the packet. The forwarding path link table includes path information of the forwarding path.
    Type: Application
    Filed: July 31, 2014
    Publication date: June 2, 2016
    Applicant: Hangzhou H3C Technologies Col, Ltd.
    Inventor: Jinglin LI
  • CONTROLLING FORWARDING DEVICES IN SOFTWARE DEFINED NETWORKS
    Publication number: 20160156504
    Abstract: A first forwarding device in a software defined network (SDN) detects disconnection of an out-band connection between the first forwarding device and a controller, sends an SDN packet to the controller via an out-band connection of a second forwarding device adjacent to the first forwarding device, and receives a response packet sent by the controller via the second forwarding device.
    Type: Application
    Filed: August 22, 2014
    Publication date: June 2, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Yunyi WANG
  • CALCULATING SPANNING TREE
    Publication number: 20160156550
    Abstract: According to an example of the present disclosure, in a method for calculating a spanning tree, a SDN controller virtualizes a plurality of SDN forwarding devices in a SDN as a virtual network bridge device, performs interaction of spanning tree protocol (STP) data unit packets with an external network device through the virtual network bridge device to calculate a spanning tree between the virtual network bridge device and the external network device according to a STP running on the SDN controller and information carried in a STP data unit packet from the external network device.
    Type: Application
    Filed: August 22, 2014
    Publication date: June 2, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Jianyong SONG
  • FORWARDING PACKETS
    Publication number: 20160149724
    Abstract: According to various examples, in a site network, a layer-2 gateway device via which a terminal accesses a layer-2 network establishes a virtual link and an IS-IS relation with a layer-3 edge device, sends information of an learned MAC address to the layer-3 edge device, receives a packet sent by the layer-3 edge device via the virtual link, performs tunnel decapsulation on the packet, and searches a local MAC forwarding table based on a VLAN ID and a destination MAC address in the decapsulated packet to forward the packet in the site network according to a search result.
    Type: Application
    Filed: May 15, 2014
    Publication date: May 26, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventor: Feng WANG
  • PACKET FORWARDING
    Publication number: 20160149725
    Abstract: A gateway RB may search for an ARP entry of the destination IP address of an IP packet. The gateway RB may generate an Ethernet header based on a VLAN identification and a MAC address in the found ARP entry and a first local MAC address. The gateway RB may generate an Ethernet packet by adding the generated Ethernet header to the IP packet, and send out the Ethernet packet via an egress port in the found ARP entry; wherein the founded ARP entry is generated by the gateway RB based on a received TRILL-encapsulated ARP packet and a VSI on the gateway RB associating with the first local MAC address and the destination IP address of the IP packet belong to the same VLAN.
    Type: Application
    Filed: August 1, 2014
    Publication date: May 26, 2016
    Applicant: Hangzhou H3C Technologies Co., Ltd.
    Inventors: Xiaopeng YANG, Yubing SONG, Ruichang GAO, Shilin ZHANG
  • Vertical converged framework
    Patent number: 9350655
    Abstract: According to an example, a Controlling Bridge (CB) receives a VCF registration request packet sent by a Port Extender (PE) and sets interface state of a VCF interface receiving the VCF registration request packet from initial state to blocked state. The CB returns a VCF registration response packet to the PE and receives a VCF registration acknowledge packet returned by the PE after the PE receives the VCF registration response packet. The CB sets interface state of a VCF interface sending the VCF registration request packet from blocked state to forwarding state; sets interface state of the VCF interface receiving the VCF registration request packet as forwarding state, and establishing successfully a VCF link with the PE.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventor: Dehan Yan
  • Method, system and router for changing application in BGP session
    Patent number: 9350652
    Abstract: A method and system for changing an application in a BGP session are provided. The method may be applied by a first router, in a session established between the first router and a second router, and in which an application is enabled. The method comprises the first router changing a local capability value to support a changed application and changing an address family according to the changed application.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventor: Haifeng Zhang
  • Switching to a backup traffic path by a label switching router in a multi-protocol label switching network
    Patent number: 9350650
    Abstract: A label switching router (LSR) and a method of switching data traffic to a predefined backup traffic path by the LSR in an MPLS (multi-protocol label switching) network. The LSR, upon detection of failure of a protected path during an LDP session, maintains an LDP session and forwards data traffic via the backup traffic path according to a forwarding table. The forwarding table contains logical output interface information including an outgoing label, a logical output interface, and the next hop of the predefined backup path.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventor: Jinrong Ye
  • Synchronization after restart of a FC switch
    Patent number: 9350621
    Abstract: Examples of the present disclosure provide a method and an apparatus for synchronization after restart of a FC switch. For example, when a FC switch which is restarted detects that a neighbor FC switch has already established an adjacency relationship with the restarted FC switch, the adjacency relationship between the restarted FC switch and the neighbor FC switch is maintained, and the neighbor FC switch is requested to perform LSR initial synchronization to the restarted FC switch under a circumstance that the adjacency relationship is kept.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventor: Changjun Zhang
  • Preventing loss of virtual machine network profiles
    Patent number: 9350614
    Abstract: A network management system deploys a network profile for a virtual machine to a physical switch after a restart of the physical switch when the virtual machine is downstream of the physical switch and the network profile for the virtual machine has been cached but not saved at the physical switch.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventors: Yonggang Zeng, Yong Guo, Ruili Tian
  • Selecting a receiving antenna in a wireless local area network
    Patent number: 9350426
    Abstract: The disclosure involves selecting a receiving antenna in a wireless local area network, comprises: testing each antenna in an antenna array to obtain an antenna quality parameter of each antenna corresponding to a client Station, and determining an optimal receiving antenna corresponding to said Station according to the antenna quality parameter of each antenna corresponding to the Station; setting the optimal receiving antenna corresponding to said Station as the receiving antenna upon receiving a notification transmission message transmitted by said Station.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 24, 2016
    Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.
    Inventor: Weiwei Zhang