Virtual network optimizing a physical network
Granted: June 9, 2020
Patent Number:
10678746
One or more devices are configured to receive information regarding network devices associated with a physical network. The one or more devices are configured further to generate configuration data based on the information regarding the network devices. The one or more devices are configured further to generate a virtual network based on the configuration data. The one or more devices are configured to send information regarding the virtual network to a client device. The one or more…
Display screen with animated graphical user interface
Granted: June 9, 2020
Patent Number:
D886834
Multi-chassis link aggregation groups with more than two chassis
Granted: June 2, 2020
Patent Number:
10673755
In one example, a network device comprising a first chassis of a multi-chassis link aggregation group (MC-LAG) having three or more chassis, comprises one or more network interfaces configured to receive a packet to be forwarded using the MC-LAG, and a control unit configured to determine whether the packet was received from a device outside of the MC-LAG, when the packet was received from the device outside of the MC-LAG, add data to the packet that identifies the first chassis as a…
Network dashboard with multifaceted utilization visualizations
Granted: June 2, 2020
Patent Number:
10673714
This disclosure describes techniques for presenting information about a network, virtualization infrastructure, cluster, or other computing environment, and may involve presentation of user interfaces that may enable nuanced, unique, and/or comprehensive insights into how infrastructure elements and computing resources are being used and information about patterns of usage and/or utilization. This disclosure also describes techniques for communicating, within a computing system,…
Failure handling for active-standby redundancy in EVPN data center interconnect
Granted: May 26, 2020
Patent Number:
10666500
Techniques are described for avoiding traffic black-holing in a multi-homed Ethernet virtual private networks (EVPNs) in which a customer device (CE) is multi-homed to a plurality of multi-homing provider edge devices (PEs) via respective links of an Ethernet segment. An overlay network is created over the Ethernet segment, and the multi-homing PEs of the EVPN are configured with a common anycast IP address for respective virtual network interfaces. Upon election as active designated…
Normal incidence photodetector with self-test functionality
Granted: May 26, 2020
Patent Number:
10666353
Photonically integrated normal incidence photodetectors (NIPDs) and associated in-plane waveguide structures optically coupled to the NIPDs can be configured to allow for both in-plane and normal-incidence detection. In photonic circuits with light-generation capabilities, such as integrated optical transceivers, the ability of the NIPDs to detect in-plane light is used, in accordance with some embodiments, to provide self-test functionality.
Label and associated traffic black hole correction
Granted: May 19, 2020
Patent Number:
10659291
Techniques are described for detecting and correcting mis-programming of label information in a router of a label switched path (LSP) without initially triggering a tear-down of the LSP. For example, techniques described in this disclosure enable an ingress router to determine whether label information is correctly programmed between a routing engine (e.g., control plane) and a forwarding engine (e.g., forwarding plane) of a router in the LSP, and to correct any mis-programming of label…
Translation between a first version of internet protocol and a second version of internet protocol when an application layer gateway (ALG) is involved
Granted: May 19, 2020
Patent Number:
10659356
A device may receive, from a first device, a port control protocol (PCP) request that includes a customer side translator (CLAT) prefix and one or more private internet protocol version X (IPvX) addresses. The PCP request may be received via an internet protocol version Y (IPvY) network. The device may store the CLAT prefix and the one or more private IPvX addresses using a data structure. The device may receive a packet that includes a private IPvX of the one or more private IPvX…
Signaling private context forwarding tables for a private forwarding layer
Granted: May 19, 2020
Patent Number:
10659352
In some examples, a method includes receiving, by a first network device, a private label route message from a second network device, the private label route message specifying a private label as a destination, a route distinguisher of an egress network device for the private label, a context protocol next hop address that identifies a private Multiprotocol Label Switching (MPLS) forwarding layer, and a next hop for the private label, determining, by the first network device and based on…
Apparatus, system, and method for dynamically scaling memory for virtual routers
Granted: May 19, 2020
Patent Number:
10659293
A disclosed method may include (1) executing a virtual router that services traffic within a network in connection with a specific network consumer and (2) dynamically scaling memory of the virtual router to accommodate a networking need of the specific network consumer by (A) installing, in at least one component of a physical network device that hosts the virtual router, a set of networking objects that facilitate servicing the traffic in connection with the specific network consumer,…
RSVP local protection signaling reduction
Granted: May 19, 2020
Patent Number:
10659290
In one example, a merge point network device (MP) receives a plurality of resource reservation request messages for establishing a plurality of label switched paths (LSPs), wherein each of the plurality of LSPs has a common point of local repair network device (PLR) and has the MP as a common MP, wherein each of the resource reservation request messages identifies a common bypass tunnel that extends between the PLR and the MP and avoids a protected resource. The MP stores an association…
Efficient heat-sinking in PIN diode
Granted: May 12, 2020
Patent Number:
10651110
The thermal impedance of p-i-n diodes integrated on semiconductor-on-insulator substrates can be reduced with thermally conducting vias that shunt heat across thermal barriers such as, e.g., the thick top oxide cladding often encapsulating the p-i-n diode. In various embodiments, one or more thermally conducting vias extend from a top surface of the intrinsic diode layer to a metal structure connected to the doped top layer of the diode, and/or from that metal structure down to at least…
Lid for semiconductor electronic package
Granted: May 5, 2020
Patent Number:
10643920
Techniques are described to limit heat transfer from a first electronic component to a second electronic such as by having an aperture in a lid over the second electronic component to form a gap in the conductance of heat from the first electronic component to the second electronic component. A semiconductor electronic package includes a substrate, a first electronic component that is of a first type and that is mounted along a surface of the substrate, a second electronic component that…
Multilayer and interactive user interfaces for displaying features of an optimized network plan
Granted: May 5, 2020
Patent Number:
10644943
A device receives network data associated with a network that includes network devices interconnected by links at an Internet protocol (IP) layer and an optical layer of the network. The device receives constraints associated with determining a network plan for the network, and determines multiple potential network plans for the network based on the constraints and the network data. The device generates a multilayer and interactive user interface associated with the multiple potential…
Method, system, and apparatus for classifying uplink and downlink traffic in networks
Granted: May 5, 2020
Patent Number:
10644902
The disclosed computer-implemented method for classifying uplink and downlink traffic in networks may include (1) maintaining a routing table that includes a plurality of routes that define paths to a plurality of network destinations in connection with a network, (2) receiving a packet to be routed toward a network destination based at least in part on a route that defines a path to the network destination in connection with the MPLS network, (3) identifying, within the routing table,…
Generating flexible, programmable, and scalable network tunnels on demand
Granted: May 5, 2020
Patent Number:
10644901
A device receives network information associated with a network and server information associated with one or more server devices, wherein the network is associated with a network device and the one or more server devices. The device generates, based on the network information and the server information, an encapsulation profile for a tunnel encapsulation path and a route profile for the tunnel encapsulation path. The device provides, to the network device, the encapsulation profile for…
Forwarding multicast data packets using bit index explicit replication (BIER) for BIER-incapable network devices
Granted: May 5, 2020
Patent Number:
10644900
A network device may transmit, to a first neighbor network device, information indicating that the network device supports bit indexed explicit replication (BIER), where the network device does not support BIER. The network device may receive, from the first neighbor network device, a multicast packet that includes a first BIER label associated with the network device. The network device may replace the first BIER label with a second BIER label associated with a second neighbor network…
Wavelength provisioning for customer premise equipment (CPE) in dense wavelength-division multiplex (DWDM) networks
Granted: May 5, 2020
Patent Number:
10644824
A system includes a first communication device and a second communication device in communication with the first communication device via an Ethernet connection. The first communication device is configured to transmit, via the Ethernet connection toward the second communication device, an Ethernet signal including information of a designated wavelength from a dense wavelength division multiplexing (DWDM) scheme to be used by the second communication device. The second communication…
Methods and apparatus for adaptive compensation of signal bandwidth narrowing through finite impulse response filters
Granted: May 5, 2020
Patent Number:
10644821
An apparatus includes a finite impulse response (FIR) filter to receive a digital signal and a transmitter, operatively coupled to the FIR filter, to transmit an analog signal, converted from the digital signal, to a communication channel. The FIR filer is configured to change at least one operating parameter based on a bandwidth of the analog signal after transmission in the communication channel. The bandwidth of the analog signal is estimated, using an estimator, based at least in…
Methods and apparatus for adaptively detecting signal degradation in an optical communication system using the pre-forward error correction bit error rate
Granted: May 5, 2020
Patent Number:
10644792
In some embodiments, an apparatus comprises a memory and a processor operatively coupled to the memory. The processor is configured to receive, from a forward error correction (FEC) decoder of an optical transponder, a first plurality of pre-FEC bit error rate (BER) values at a plurality of times to identify a degradation over a first transmission path. The processor is configured to determine, based on the first plurality of pre-FEC BER values, a signal pattern. The processor is…
