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78 results about "Route reflector" patented technology
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A route reflector (RR) is a network routing component for BGP (RFC 4456). It offers an alternative to the logical full-mesh requirement of internal border gateway protocol (IBGP). A RR acts as a focal point for IBGP sessions. The purpose of the RR is concentration. Multiple BGP routers can peer with a central point, the RR – acting as a route reflector server – rather than peer with every other router in a full mesh. All the other IBGP routers become route reflector clients.
Enhanced data switching/routing for multi-regional IP over fiber network
InactiveUS6963575B1Multiplex system selection arrangementsNetworks interconnectionWide areaBorder Gateway Protocol
Wide-area data communications utilize regional networks transporting IP-over-Ethernet on fiber. For certain Layer 2 services, a regional implementation of the network makes limited use of spanning tree protocol on a backbone ring. Learning bridge operations in switches on associated access rings involve a short default for an aging timer. For use of Open Shortest Path First (OSPF), the connection of each access ring to the backbone ring uses a pair of routers with dual links therebetween. One of these links is bonded to the backbone (OSPF Area 0), whereas the other link is bonded to the Area of the respective access ring. Also, certain routers within each regional network form a mini-autonomous system, for boundary gateway protocol (BGP). The mini-autonomous systems of the regional networks form a confederation. The network utilizes route reflectors in the mini-autonomous systems. The Internet carries confederation commands to and from a designated hub.
Owner:YIPES ENTERPRISE SERVICES
Method and apparatus for implementing hub-and-spoke topology virtual private networks
Deployment of a hub-and-spoke (HaSP) topology virtual private network (VPN) may be facilitated by implementing a bi-directional VRF on a hub PE and using the hub PE as a hub-reflector. Route distinguishers and route targets may be used to differentiate traffic originating on the spokes from traffic originating on the hub. Using a bi-directional VRF allows a HaSP VPN to be created using a single link between the hub CE and hub PE. Allowing the hub CE to control spoke route distribution, and differentiating the direction of the flow by route target and route designator, enables the hub to control traffic between the spokes. Configuring the hub PE as a route reflector allows communication between the spokes to take place without having the CE hub inspect every piece of traffic. Optionally, other services may be provided by the hub PE as well, such as NAT, firewall, and AAA services.
Owner:RPX CLEARINGHOUSE
Method and apparatus for implementing hub-and-spoke topology virtual private networks
Deployment of a hub-and-spoke (HaSP) topology virtual private network (VPN) may be facilitated by implementing a bi-directional VRF on a hub PE and using the hub PE as a hub-reflector. Route distinguishers and route targets may be used to differentiate traffic originating on the spokes from traffic originating on the hub. Using a bi-directional VRF allows a HaSP VPN to be created using a single link between the hub CE and hub PE. Allowing the hub CE to control spoke route distribution, and differentiating the direction of the flow by route target and route designator, enables the hub to control traffic between the spokes. Configuring the hub PE as a route reflector allows communication between the spokes to take place without having the CE hub inspect every piece of traffic. Optionally, other services may be provided by the hub PE as well, such as NAT, firewall, and AAA services.
Owner:RPX CLEARINGHOUSE
System and method for filtering routing updates
A system and method for filtering routing updates is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a Route Reflector (RR) having a route reflection element that routes to one or more network elements a routing update according to a filter. Other embodiments are disclosed.
Owner:SBC KNOWLEDGE VENTURES LP
Advertising alternate paths at border gateway protocol route reflectors
ActiveUS20100220736A1Data switching by path configurationBorder Gateway ProtocolDistributed computing
In one embodiment, a method includes receiving routing information at an alternate route reflector in a network, identifying at the alternate route reflector, an alternate path different from a primary path selected and advertised at a primary route reflector in the network, and advertising at the alternate route reflector, the alternate path. The primary and alternate paths define paths for a destination and the alternate path is the only path advertised by the alternate route reflector for the destination.
Owner:CISCO TECH INC
Routing announcement method and routing announcement device
ActiveCN106878166AAvoid interruptionImprove reliabilityNetworks interconnectionAddress Resolution ProtocolBorder Gateway Protocol
The application provides a route announcement method and a route announcement device. The method, which is applied to a VTEP (Virtual Tunnel End Point) in a DR (Distributed Relay) system, comprises the following steps: receiving ARP (Address Resolution Protocol) information synchronized by other VTEPs in the same DR system; generating a first Ethernet virtual private network EVPN second-class route according to the synchronized ARP information, wherein the first EVPN second-class route has a first identifier which is used to show that the first EVPN second-class route is a route generated according to the ARP information synchronized by other VTEPs in the same DR system; and sending the first EVPN second-class route to a BGP route reflector having a border gateway protocol BGP neighbor relationship with the VTEP. Therefore, a VTEP receiving synchronized ARP information can also trigger and report a route, the situation in which traffic interruption is caused due to failure of a link where a single route is located is avoided, and the reliability of the EVPN network is improved.
Owner:NEW H3C TECH CO LTD
Softrouter feature server
ActiveUS20060092935A1Remove complexityEasy to introduceData switching by path configurationExtensibilityOff the shelf
A network architecture includes one or more feature servers and control servers in a control plane that is logically separate from a data plane that includes forwarding elements. Feature servers facilitate adding network-based functionality in a centralized way that is has better scalability than the traditional router architecture. Some examples of network-based functionality are voice over IP, enhancing QoS support, scaling BGP route reflectors, network-based VPN support, scaling mobile IP support, introducing IPv6 into existing and future networks, and enhancing end-to-end network security. Feature servers remove complexity from routers, allow functions to be implemented on a standard-off-the-shelf server platform, facilitate easy introduction of value-added functions, and scale well.
Owner:NOKIA TECHNOLOGLES OY
Routing device, route reflector, routing information processing method and system
InactiveCN102281199AAvoid lossImprove transmission qualityData switching networksInformation processingService flow
The embodiment of the invention provides route equipment, a route reflector, a route information processing method and a route information processing system. The route information processing method comprises the following steps that: first route equipment receives the route information of second route equipment and disconnection no deletion identification information corresponding to the route information from the route reflector; the first route equipment determines that border gateway protocol (BGP) connection between the first route equipment and the route reflector is passively disconnected; and the first route equipment processes the route information corresponding to the disconnection no deletion identification information in a graceful restart (GR) mode. In the embodiment of the invention, the route information of other route equipment, which is positioned on a forwarding path, is processed in the GR mode, so that the forwarding path among the equipment is kept unchanged temporarily, the smoothness of service flow is ensured, and flow loss is avoided.
Owner:BEIJING HUAWEI DIGITAL TECH
Networking functions in a micro-services architecture
A method may include receiving a request to provide at least one application session, and generating a networking architecture that includes at least one virtual route reflector front end (VRR FE), at least one back end work unit, and at least one routing information base (RIB) in a virtualization environment. The method includes implementing the at least one application session via the at least one VRR FE, the at least one back end work unit, and the at least one RIB. The at least one VRR FE is to perform as a proxy for traffic to the at least one back end work unit. The method also includes monitoring a load associated with the at least one application session, and performing load balancing on the networking architecture based on assignment of the load to the at least one back end work unit.
Owner:VERIZON PATENT & LICENSING INC
Route reflector as a service
A computer device may include logic configured to generate a virtualized environment for a customer; receive a request to provide a route reflector service for the customer; and generate a virtual route reflector on the generated virtualized environment, in response to receiving the request to provide the route reflector service for the customer. The logic may further be configured to establish a Virtual Private Network (VPN) or secure tunnel connection between the generated virtual route reflector and a client router associated with a customer network via a cloud center access system, wherein the cloud center access system connects a cloud center system that includes the computer device to a provider network that includes the client router; and establish a Border Gateway Protocol (BGP) session between the client router and the generated virtual route reflector using the established VPN or secure tunnel connection.
Owner:VERIZON PATENT & LICENSING INC
System for advertising routing updates
A system for advertising routing updates is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a route reflector having a controller element that generates from a routing update a plurality of dissimilar routing advertisements transmitted in whole or in part to one or more provider edge routers operating in a packet-switched communication system. Other embodiments are disclosed.
Owner:SBC KNOWLEDGE VENTURES LP
Autonomous Movement System
ActiveUS20180164829A1Ride-comfort can be improvedShorten speedWheelchairs/patient conveyancePosition/course control in two dimensionsEngineeringCentrifugal force
A movable object includes a sensing device for detecting traveling-route reflector on a travel surface so that a region outside a floor projection region of the movable object, in particular the traveling-route reflector forward, can be detected. Detecting the traveling-route reflector across a wide range of areas allows traveling control, such as gradual deceleration before entering a curve, speed regulation based on a turning radius at the curve so that centrifugal force on a rider or load is not too great. Also the movable object can detect a branch point or an intersection beforehand, decelerate, and notify the user for user's instruction regarding the traveling direction. Furthermore, for a movable object autonomously traveling with an item mounted thereon, a single sensing device detects the traveling-route reflector and also serves as a safety sensor for avoiding collision with any other objects therearound.
Owner:DOOG
Method and apparatus for providing a scalable route reflector topology for networks
InactiveUS20060083215A1Optimize networkImprove reliabilityData switching by path configurationDistributed computingRoute reflector
Method and apparatus for implementing a route reflector topology that comprises a plurality of sets of route reflectors. Each set of route reflectors establishes a peering relationship with all PEs (Provider Edges), e.g., Provider Edge Routers in the network. In one embodiment, each PER designates one set of route reflectors to propagate said PE's private routes, e.g., VPNv4 routes, to other PEs in the network. This designated set of route reflectors is responsible for both advertising locally originated routes from this PE to all other PEs and advertisement of routes from other PEs to this PE. Using this unique route reflector topology, new sets of route reflectors and PEs can be easily added into the network seamlessly.
Owner:AMERICAN TELEPHONE & TELEGRAPH CO +1
Route publishing method and device
ActiveCN105337870ARealize centralized controlTo achieve the purpose of schedulingData switching networksRoute reflectorDistributed computing
The invention proposes a route publishing method, and the method comprises the steps: enabling all BGP routers to report updated routes to a BGP route reflector; enabling the BGP route reflector to publish an RT label with a VRF and a plurality of next-hop target routes to a far-end target BGP router with a VRF according to the collected updated routes, wherein each next-hop target route is configured to have a different NT label; enabling the target BGP router to receive the target routes reflected by the BGP route reflector; enabling the target routes to be installed in a corresponding VRF route list according to the RT label, and transmitting a message to the next hop, matched with the RT label of the message transmitting VRF, of the NT label when the received message is matched with the target route. The method can flexibly select a next hop for each VRF, and achieves the centralized control and dispatching of flow.
Owner:NEW H3C TECH CO LTD
Monitoring and analytic system for route between domain of internet and its working method
InactiveCN100388695CImprove performanceOptimizationNetworks interconnectionThe InternetRoute reflector
Route monitoring and analytic system among internet domain consists of one or more of monitoring node configured in AS of monitored network, which includes routing change information acquisition module, routing change message processing module, route topology management and whipping presentment module, and routing change information data base. Each monitor node is connected with network border route reflector neared router, to make node capable of being used as route reflector client-side to receive and monitor neared router issued route update information, through monitor route variation message in each AS to monitor domain route performance, and presenting each node route topology variation status and integrated all network topology variation status, to provide in time accuracy data for network operation and maintenance.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Separate ethernet forwarding and control plane systems and methods with interior gateway route reflector for a link state routing system
The present disclosure provides a separate Ethernet forwarding and control plane system, method, network, and architecture with a Link State Interior Gateway route reflector for the control plan system and a layer two network architecture for the forwarding system. The present invention optionally utilizes a cloud implementation for the Designated Router (DR) or designated peering node reducing peering requirements and distributing the functionality. Through the architecture of the present invention, the Provider router is obviated by the application of layer two switches and servers. Such an architecture provides improved scaling, performance, and cost reduction.
Owner:CIENA
Hardware-logic based flow collector for distributed denial of service (DDOS) attack mitigation
ActiveUS20160080411A1Memory loss protectionError detection/correctionTraffic capacityRoute reflector
Methods and systems for an integrated solution to flow collection for determination of rate-based DoS attacks targeting ISP infrastructure are provided. According to one embodiment, a method of mitigating DDoS attacks is provided. Information regarding at least one destination within a network for which a distributed denial of service (DDoS) attack status is to be monitored is received by a DDoS attack detection module coupled with a flow controller via a bus. The DDoS attack status is determined for the at least one destination based on the information regarding the at least one destination. When a DDoS attack is detected the flow controller is notified of the DDoS attack status for the at least one destination by the DDoS attack detection module. Responsive thereto, the flow controller directs a route reflector to divert traffic destined for the at least one destination to a DDoS attack mitigation appliance within the network.
Owner:FORTINET
Selective BGP graceful restart in redundant router deployments
The invention relates to a selective BGP graceful restart in redundant router deployments. In general, techniques are described for selectively invoking graceful restart procedures when a route reflector member of a redundant route cluster fails. In one example, a method is provided that includes determining, by a provider edge router that supports graceful restart procedures, that a first router forms a redundant group with at least a second router. The method also includes detecting a failure of the first router and determining that at least the second router in the redundant group is operating approximately while the first router is failed. The method further includes overriding graceful restart procedures with respect to the failed first router when at least the second router is operating. The method also includes forwarding one or more data packets according to route information provided via the second router.
Owner:JUMIPER NETWORKS INC
Communication method and system between mixed network VPN stations across different autonomous systems
The invention is concerned with the communicating method and the communicating system between the mix virtual private networks (VPN) of the different autonomous system, it is: setup the route reflector respectively in the autonomous system of the superior VPN provider's station that relative to the lower lever VPN user when setups the route reflector, the relay, the transmitting VPN route and the operating stream, and setup corresponding Ipv4 / v6 VRF for the lower level VPN station in every route reflector of the autonomous system; achieve the BGP / MPLS VPN network communication between the same-kind network and the different-kind network of the IPv4 / v6 mix network which belongs to the different autonomous system of Carrier's carrier, by the two processes that are the VPN route circular and the VPN service data transmission.
Owner:HUAWEI TECH CO LTD
Path optimizing selection method and system based on route reflector
ActiveCN106850422AReduce processing burdenMultipath load balancingData switching networksTraffic groomingTopology information
The invention discloses a path optimizing selection method and system based on a route reflector, and relates to the field of data communication. The method comprises the following steps: a first route reflector acquires the whole network topology information and receives the whole network complete BGP route information sent by a second route reflector; the first route reflector collects and analyzes the whole network traffic flow direction data and link utilization factor data, and formulates a traffic grooming and optimizing strategy; according to the whole network topology information, the whole network complete BGP route information, the whole network traffic flow direction data and the link utilization factor data, the first route reflector reflects an optimized BGP route to a to-be-optimized path router according to the traffic grooming and optimizing strategy. The multipath load balancing of the traffic can be realized, and the problem of the production of the suboptimum route caused by the lack of the whole network topology visual angle is avoided. Furthermore, the processing burden of the first route reflector can be reduced since the first route reflector only needs to establish IBGP connection with the router referring to path optimization.
Owner:CHINA TELECOM CORP LTD
Method for IP backbone network flow load balance based on BGP virtual next hop
The invention provides a load balance method for backbone network traffic based on BGP virtual next hop, comprising: allocating a virtual manage IP address for every area; separately configuring static router at multiple convergence router of the area, and infusing the static router to IGP router table; changing the NextHop attribute in BGP router information transmitted to router reflector to virtual manage IP address to enable the core router to perform routing setting according to the BGP routing information forwarded by the router reflector. In the inventive method, load balance of virtual manage IP address can be achieved under standard IP backbone network balance model by utilizing multi-routing iteration of router by setting one identical virtual manage IP address as next hop information of BGP Nexthop attribute for BGP router of same area.
Owner:CHINA MOBILE GRP GUANGDONG CO LTD
Advertising alternate paths at border gateway protocol route reflectors
In one embodiment, a method includes receiving routing information at an alternate route reflector in a network, identifying at the alternate route reflector, an alternate path different from a primary path selected and advertised at a primary route reflector in the network, and advertising at the alternate route reflector, the alternate path. The primary and alternate paths define paths for a destination and the alternate path is the only path advertised by the alternate route reflector for the destination.
Owner:CISCO TECH INC
Hardware-logic based flow collector for distributed denial of service (DDoS) attack mitigation
Methods and systems for an integrated solution to flow collection for determination of rate-based DoS attacks targeting ISP infrastructure are provided. According to one embodiment, a method of mitigating DDoS attacks is provided. Information regarding at least one destination within a network for which a distributed denial of service (DDoS) attack status is to be monitored is received by a DDoS attack detection module coupled with a flow controller via a bus. The DDoS attack status is determined for the at least one destination based on the information regarding the at least one destination. When a DDoS attack is detected the flow controller is notified of the DDoS attack status for the at least one destination by the DDoS attack detection module. Responsive thereto, the flow controller directs a route reflector to divert traffic destined for the at least one destination to a DDoS attack mitigation appliance within the network.
Owner:FORTINET
Method, apparatus and system for rapid rerouting
ActiveCN101494614ASimple planEasy to implementNetworks interconnectionComputer networkComputer science
The embodiment of the invention discloses a quick rerouting method, a quick rerouting device and a quick rerouting system. In the embodiment of the invention, a first service provider edge router and a second service provider edge router are firstly configured with different router identifiers; and after routing information passes through a routing reflector, the router identifiers of the service provider edge routers are modified, thus leading the router identifiers of the first service provider edge router and the second service provider edge router to be consistent. By adopting the technical proposal provided by the embodiment of the invention, the VPN FRR can be supported in domain when the reflector exists between PE and ASBR in a CE double return PE scene. The technical proposal provided by the embodiment of the invention only needs ASBR to support the technique and does not make any modification to other nodes, thus having simple implementation.
Owner:HUAWEI TECH CO LTD
Route-distribution method and route reflector equipment
ActiveCN106452909AAvoid interruptionImprove experienceData switching networksBorder Gateway ProtocolDistribution method
The embodiment of the invention provides a route-distribution method and route reflector equipment and relates to the field of communication. The problem that in the prior art, identical routes will be redistributed by an RR can be solved. The method includes the steps that indication information is obtained and used for indicating to divide client sides, which will establish a border gateway protocol (BGP) peer with the RR, into a first client side set and a second client side set, the RR is a main RR of the client sides in the first client side set and is also a standby RR of the client sides in the second client side set, and an opposite end RR of the RR is a standby RR of the client sides in the first client side set and a main RR of the client sides in the second client side set; a route notified by the client sides in the first client side set is distributed, and a route notified by the client sides in the second client side set is distributed when the opposite end RR of the RR is determined to fail.
Owner:MAIPU COMM TECH CO LTD
Routing information transmitting method and system and route reflector
InactiveCN104753794AImprove accuracyReduce delivery frequencyData switching networksTelecommunicationsInformation transmission
The invention discloses a routing information transmitting method. The method comprises the following step that: a VPN (Virtual Private Network) virtual route reflector (VRR) determines routing information with a received identifier made for routing information required by a service access router (AR) in the received routing information according to the identifier, and transmits the routing information to the AR. The invention also discloses a routing information transmitting system and the VRR. According to the technical scheme in the embodiment of the invention, the VRR only needs to transmit the routing information required by the AR to the AR according to the identifier without transmitting useless routing information, so that the transmission frequency of a useless route in a network is lowered; the resource processing loads of the VRR and the AR are relieved; and the accuracy of routing information transmission is increased.
Owner:LIAONING MOBILE COMM
Internal BGP downloader
ActiveUS8036139B2Improvement in routing information propagation delayImprovement in routing stabilitySpecial service provision for substationNetworks interconnectionPropagation delayRoute reflector
Improved systems and methods for distributing interdomain routing information within an Autonomous System (AS). A protocol extension to BGP, iBGPd (internal Border Gateway Protocol downloader), has been developed to replace IBGP in distributing BGP interdomain routing information within an AS. The iBGPd technique distributes routing information hop-by-hop using a reliable multi-party transport protocol. Scalability is greatly improved since the use of a full mesh of TCP connections is avoided. Also, there are improvements in routing information propagation delay and routing stability. Drawbacks related to the use of route reflectors and confederations are avoided.
Owner:CISCO TECH INC
Service provider boundary routers, system and method for achieving fast VPN rerouting
The invention relates to a data communication technology, solves the problem that an existing VPN FRR technology cannot be implemented under the condition that a route reflector exists between a dual-homing / multi-homing PE and a far-end PE and provides service provider boundary routers, system and method for achieving fast VPN rerouting. According to the technical scheme, two novel service provider boundary routers are provided, the first service provider boundary router comprises a router identification presetting module, a sending module, a dynamic identification generating module and a router identification replacing module, and the second service provider boundary router comprises a receiving module and an analysis recovery module. The service provider boundary routers, system and method for achieving the fast VPN rerouting has the advantages that the far-end service provider boundary router can still support the fast VPN rerouting under the condition that the route reflector exists between the dual-homing / multi-homing service provider boundary router and the far-end service provider boundary router and is suitable for dual-homing / multi-homing networking.
Owner:MAIPU COMM TECH CO LTD
VPNv4 ROUTE CONTROL FOR LTE X2 SON USING UNIQUE ROUTE TARGETS
ActiveCN105814943AReduce configuration workReduce memory requirementsNetwork topologiesTransmissionRouting tableIp address
According to an embodiment, a network device automatically creates a more optimal route entry for inter-base station traffic to be transmitted between a local and a remote base station through a backhaul network. The network device automatically discovers an IP address of the remote base station used for inter-base station traffic based upon traffic transmitted by the local base station to the network device or transmitted between the local and the remote base stations. The network device generates a unique route target (RT) value based upon the remote IP address and inserts it into an import route target list.; Upon receiving a route update message including routes transmitted by a route reflector in the backhaul network, the network device installs a route entry into a routing table based upon determining that an RT value of one of the routes matches the unique RT value in the import route target list.
Owner:TELEFON AB LM ERICSSON (PUBL)
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