Log analysis in vector space
Granted: October 5, 2021
Patent Number:
11138059
The disclosed embodiments provide for identification of a remedial action based on analysis of a system log file. In some example embodiments, messages from the system log file are used as input to generate vectors within a vector space. Portions of the log messages may generate vectors that cluster into a region in the vector space. The region of vector space is associated with one or more remedial actions. The disclosed embodiments are configured, in some example embodiments, to…
Optical coupler including a faraday rotator layer and at least one grating coupler
Granted: October 5, 2021
Patent Number:
11137555
An optical coupling device can couple incident light from a fiber into waveguides, but can reduce the coupling of return light from the waveguides into the fiber. A Faraday rotator layer can rotate by forty-five degrees, with a first handedness, respective planes of polarization of incident beams, and can rotate by forty-five degrees, with a second handedness opposite the first handedness, respective planes of polarization of return beams. A redirection layer can include at least one…
Enhanced flexible-algorithm definition
Granted: September 28, 2021
Patent Number:
11134004
Techniques are described for advertising constraint-based path computation (e.g., flexible-algorithm) through a constrained network topology. For example, a network device comprises a memory and one or more programmable processors operably coupled to the memory, wherein the one or more programmable processors are configured to generate a packet including a segment identifier (SID) offset, wherein the SID offset is an offset value associated with the flexible-algorithm. The one or more…
Resilient multiprotocol label switching (MPLS) rings using segment routing
Granted: September 28, 2021
Patent Number:
11133958
A ring node N belonging to a resilient MPLS ring (RMR) provisions and/or configures clockwise (CW) and anti-clockwise (AC) paths on the RMR by: (a) configuring two ring node segment identifiers (Ring-SIDs) on the ring node, wherein a first of the two Ring-SIDs (CW-Ring-SID) is to reach N in a clockwise direction on the ring and a second of the two Ring-SIDs (AC-Ring-SID) is to reach N in an anti-clockwise direction on the ring, and wherein the CW-Ring-SID and AC-Ring-SID are unique…
Apparatus, system, and method for electromagnetic interference mitigation in split heatsink technologies
Granted: September 21, 2021
Patent Number:
11129302
The disclosed apparatus may include (1) a split heatsink assembly that comprises (A) a first heatsink that includes a base for thermally coupling to a first heat-emitting component, wherein the base of the first heatsink forms an opening, and (B) a second heatsink that includes a pedestal for thermally coupling to a second heat-emitting component, wherein the pedestal of the second heatsink fits into the opening formed by the base of the first heatsink, and (2) an EMI absorber that at…
Intelligent radio band reconfiguration of access points in a wireless network
Granted: September 21, 2021
Patent Number:
11129027
Methods and apparatus for automatically reconfiguring network parameters are described. Some embodiments identify communication channels that may interfere with higher priority equipment and deactivate communication channels that may cause harmful interference. Some APs are switched to 2.4 GHz communication channels. In some embodiments, AP operating parameters, such as transmission power are adjusted to reduce interference for higher priority receivers.
Systems and methods for optical protection switch with single-ended activation, operation, and provision of 1+1 protection over redundant bidirectional communications paths
Granted: September 21, 2021
Patent Number:
11128394
An apparatus includes a tail-end optical switch configured to be coupled to a broadcast star network that couples the tail-end optical switch to a head-end optical switch by a primary bidirectional optical path and a second bidirectional optical path. The tail-end optical switch having a first optical switch and a second optical switch configured to provide active switching.
Display screen or portion thereof with animated graphical user interface
Granted: September 21, 2021
Patent Number:
D931316
Display screen or portion thereof with graphical user interface
Granted: September 21, 2021
Patent Number:
D931315
Securing end-to-end virtual machine traffic
Granted: September 7, 2021
Patent Number:
11115391
A device may receive a packet from a first endpoint that is destined for a second endpoint. The first endpoint may be hosted on the device. The device may determine whether a secure session exists between the first endpoint and the second endpoint. The secure session may permit encrypted traffic to be exchanged between the first endpoint and the second endpoint. The device may process the packet using a set of rules after determining whether the secure session exists between the first…
Media access control security (MACsec) enabled links of a link aggregation group (LAG)
Granted: September 7, 2021
Patent Number:
11115389
A device may cause a Media Access Control Security (MACsec) session to be established on a first link of a link aggregation group (LAG) that includes a plurality of links with a different device. The device may cause a data structure to be updated to identify the first link as a MACsec enabled LAG link and may send traffic via the first link. The device may cause a MACsec session to be established on at least one additional link of the LAG and may cause the data structure to be updated…
Assisted replication with multi-homing and local bias
Granted: September 7, 2021
Patent Number:
11115330
A device may receive, from a provider edge device, a packet to be provided to one or more other provider edge devices. Some of the one or more other provider edge devices may be multi-homed with a same customer edge device as the provider edge device. The device may configure a source IP address of the packet based on a capability of an assisted replicator device after receiving the packet. The capability may relate to whether the assisted replicator device is capable of retaining the…
Network device modeling in preconfigured network modeling environments
Granted: August 31, 2021
Patent Number:
11106839
In general, techniques are described for providing network device modeling in preconfigured network modeling environments. A device comprising a memory and a processor may be configured to perform the techniques. The processor may interface with a network device within the preconfigured network environment to iteratively adapt pre-defined configuration objects of the network device. The processor may conduct, for each iteration of the adaptation of the pre-defined configuration objects,…
Integrated optoelectronic device with heater
Granted: August 31, 2021
Patent Number:
11106060
Disclosed are structures as well as methods of manufacture and operation of integrated optoelectronic devices that facilitate directly heating the diode or waveguide structures to regulate a temperature of the device while allowing electrical contacts to be placed close to the device to reduce the electrical resistance. Embodiments include, in particular, heterogeneous electro-absorption modulators that include a compound-semiconductor diode structure placed above a waveguide formed in…
Query proxy for delivery of dynamic system state
Granted: August 17, 2021
Patent Number:
11095742
In general, techniques are described for providing a dynamic system state for a distributed operating system. A network device comprises a plurality of hardware computing nodes configured to execute a distributed operating system that provides an execution environment in which a plurality of applications is executed. A computing node of the plurality of computing nodes is configured to configure a dynamic state application to operate as a proxy to receive one or more requests for state…
Initializing network device and server configurations in a data center
Granted: August 17, 2021
Patent Number:
11095504
A system for configuring a data center includes a fabric management server coupled to a management switch. A provisional Software Defined Networking (SDN) controller executing on the fabric management server can discover physical servers coupled to the management switch, receive network interface configuration information from the physical servers, and use the discovered network interface configuration information to determine a configuration for switches and servers coupled to an IP…
Automated network device model creation using randomized test beds
Granted: August 17, 2021
Patent Number:
11093666
In general, techniques are described for automated network device model creation using randomized test beds. A device comprising a processor may be configured to perform the techniques. The processor may generate, based on simulation configuration files, configuration objects for performing a plurality of simulation iterations with respect to the network device operating within a test environment. Each of the simulation iterations may be configured to randomly assign parameters within…
Methods and apparatus for detecting and compensating bandwidth limitation and modulation nonlinearity of a coherent optical transponder
Granted: August 10, 2021
Patent Number:
11088765
In some embodiments, an apparatus includes a memory and a processor operatively coupled to the memory. The processor is configured to send a stimulus signal at a frequency that corresponds to a first frequency value to a tributary channel of a coherent optical transponder. The processor is configured to adjust an amplitude of the stimulus signal and receive a first plurality of output optical power values. The processor is configured to adjust the frequency of the stimulus signal and…
Network traffic control based on application path
Granted: August 10, 2021
Patent Number:
11088952
A network device may receive network traffic associated with a session, wherein the session is associated with a network. The network device may determine, from the network traffic, an application path that is associated with the session, wherein the application path is associated with a communication protocol and an application protocol. The network device may determine, based on policy information that is associated with the application path, whether the network traffic associated with…
Fast convergence for MAC mobility
Granted: August 10, 2021
Patent Number:
11088871
A first provider edge device may receive device information from a second provider edge device included in an Ethernet virtual private network (EVPN). The device information may identify a media access control (MAC) address and may indicate that the device is connected to the second provider edge device. The first provider edge device may receive data transmitted by the device and may determine, based on information included in the data, that the device has moved from the second provider…
