Cooling for slot mounted electrical modules
Granted: December 1, 2020
Patent Number:
10856446
A cooling manifold positioned on an electrical or computer to provide liquid cooling for a plurality of slot-mounted electrical modules received in a corresponding plurally of module slots arranged in faceplate assembly of an electrical or computer card is described and illustrated.
On-demand probing for quality of experience metrics
Granted: December 1, 2020
Patent Number:
10855555
In general, the disclosure describes techniques for evaluating application quality of experience metrics over a software-defined wide area network. For instance, a network device may receive an application data packet of a data flow for an application. In response to receiving the application data packet, the network device may assign the data flow to a first link of a plurality of links and initiate a probing process for the data flow on the first link to determine one or more quality…
Systems and methods for non-intrusive network performance monitoring
Granted: December 1, 2020
Patent Number:
10855546
A first network device may receive packets as part of a traffic flow of an internet protocol session, select a packet based on a rule, and add, to a packet replica of the selected packet, routing information capable of being used to generate performance indicators associated with the IP session. The first network device may modify a portion of the packet replica to include values that will cause the packet replica to fail to reach a destination device associated with the IP session, and…
Reduced configuration for multi-stage network fabrics
Granted: November 24, 2020
Patent Number:
10848416
A method includes receiving, by a first network device, messages from a plurality of network devices in a network, each of the messages indicating a level value of a respective sending network device in a network topology, determining, by the first network device and based on the respective levels indicated by the messages, a level value of the first network device in the network topology, determining, by the first network device and based on the determined level value, a mechanism by…
Methods and apparatus for a scalable network with efficient link utilization
Granted: November 24, 2020
Patent Number:
10848414
In some embodiments, an apparatus includes a network node configured to be included in a set of network nodes operatively coupled to a core network node. The network node is configured to receive a first packet and a second packet from a host device operatively coupled to the network node. The network node is configured to send the first packet to the core network node via a first path of a tunnel between the network node and the core network node. The first path of the tunnel has a…
End-to-end monitoring of overlay networks providing virtualized network services
Granted: November 24, 2020
Patent Number:
10848403
In one example, a network device external to a services complex injects a plurality of probe packets along service chains provided by the services complex, wherein each of the plurality of probe packets includes a first timestamp indicating a time at which the network device sent the respective probe packet. Each of a plurality of service nodes in the services complex modifies each of the plurality of probe packets by inserting a respective second timestamp indicating a respective time…
Supporting near real time service level agreements
Granted: November 17, 2020
Patent Number:
10841182
A controller device manages a plurality of network devices. The controller device includes one or more processing units implemented in circuitry and configured to determine that one or more stateful intents used to manage the plurality of network devices and represented by a graph model are degraded due to assigned resources for the stateful intents having become degraded; in response to determining that the one or more stateful intents are degraded, determine resources for the stateful…
Methods and apparatus for consistency check in disaggregated dense wavelength-division multiplexing (DWDM) systems
Granted: November 17, 2020
Patent Number:
10841670
An apparatus includes a first communication interface configured to be communicatively coupled, via an optical line, to a network device that is disposed in an optical network using wavelength division multiplexing (WDM). The apparatus also includes a second communication interface configured to be communicatively coupled to a router via an Ethernet connection. The apparatus also includes a signal generator operatively coupled to the first communication interface and the second…
Configuring service load balancers with specified backend virtual networks
Granted: November 17, 2020
Patent Number:
10841226
Techniques are described for specifying a backend virtual network for a service load balancer. An example orchestrator of this disclosure is configured to receive a service definition for a service implemented by load balancing service traffic for the service among a plurality of backend virtual execution elements, wherein the service definition specifies a first virtual network to use as a backend virtual network for the service, to instantiate, in a selected one of the computing…
Local-bias forwarding of L2 multicast, unknown unicast, and broadcast traffic for an ethernet VPN
Granted: November 17, 2020
Patent Number:
10841216
In general, techniques are described for forwarding L2 BUM traffic within an Ethernet Virtual Private Network (EVPN) by implementing a forwarding preference for local interfaces of a PE device for broadcast domains in the EVPN. For example, a method includes receiving, by a first provider edge (PE) device of a plurality of PE devices configured with an EVPN instance comprising one or more broadcast domains reachable by a plurality of Ethernet segments connecting the plurality of PE…
Forwarding multicast data packets using bit index explicit replication (BIER) for BIER-incapable network devices
Granted: November 17, 2020
Patent Number:
10841111
A bit indexed explicit replication (BIER) network device may receive information indicating that a BIER proxy device is a BIER proxy for a first network device, and may transmit, to the BIER proxy device and based on receiving the information, a BIER-encapsulated multicast packet via a first tunnel between the BIER network device and the BIER proxy device. The BIER proxy device may be to transmit, via a second tunnel through the first network device, a first copy of the BIER-encapsulated…
Multi-pitch ball grid array
Granted: November 17, 2020
Patent Number:
10840173
A mixed pitch method of placing pads in a ball grid array (BGA) package having a. BGA substrate and a plurality of connectors arranged in an array and connected via the pads to the BGA substrate. Selected pairs of the pads are placed on the BGA substrate at a distance defined by a first pitch PT. Ground pads are placed on the BGA substrate at a distance from the selected pairs of pads defined by a second pitch P2, wherein P2=M*P1 and M is greater than one. The selected pairs of the pads…
Display screen or portions thereof with a graphical user interface
Granted: November 17, 2020
Patent Number:
D902229
Apparatus, system, and method for correcting slow field-replaceable units in network devices
Granted: November 10, 2020
Patent Number:
10831592
A disclosed method may include (1) identifying a set of field-replaceable units installed on a network device, (2) monitoring the set of FRUs for flapping that renders any of the FRUs temporarily inoperable, (3) detecting at least one flap in which an FRU within the set (A) experiences a fault that renders the FRU temporarily inoperable and (B) subsequently overcomes the fault to resume operability, (4) determining that the FRU is deficient based at least in part on at least one…
Apparatus, system, and method for increasing the cooling efficiency of cold plate devices
Granted: November 10, 2020
Patent Number:
10834847
The disclosed apparatus may include (1) a cold plate base that (A) is thermally coupled to a component and (B) includes a set of heatsink fin structures that facilitate absorbing heat generated by the component and (2) a cold plate cover that (A) sits atop the cold plate base and (B) directs a cooling fluid across the set of heatsink fin structures to cool the cold plate base despite the heat absorbed by the cold plate base from the component. Various other apparatuses, systems, and…
Tracking and mitigation of an infected host device
Granted: November 10, 2020
Patent Number:
10834103
A security platform may determine mapped attribute information associated with a plurality of host identifiers. The mapped attribute information may include information that identifies a set of related attributes. The security platform may determine, based on the mapped attribute information, that a host device is associated with at least two host identifiers of the plurality of host identifiers. The security platform may aggregate, based on the at two least host identifiers, threat…
Enabling selection of a bypass path from available paths in an open shortest path first (OSPF) domain and an intermediate system to intermediate system (ISIS) domain
Granted: November 10, 2020
Patent Number:
10833973
A network device receives an attribute identifying paths associated with an open shortest path first (OSPF) domain of a network and an intermediate system to intermediate system (ISIS) domain of the network, and provides the attribute to other network devices of the network. The network device receives traffic destined for one of the other network devices of the network, and determines that a primary path is unavailable for routing the traffic to the one of the other network devices. The…
Network configuration service discovery
Granted: November 10, 2020
Patent Number:
10833936
A system and method for service discovery. A network management system constructs, based on configuration data associated with a first network device and a second network device, respectively, a first partial service instance associated with a service executing on a first network device and a second partial service instance associated with the service executing on a second network device. The network management system merges the first partial service instance and a second partial service…
Secure remote bootstrapping of network device
Granted: November 10, 2020
Patent Number:
10833929
Techniques are disclosed for performing secure remote bootstrapping operations of a network device such that sensitive configuration resides in volatile memory or is inaccessible upon power loss. In one example, a network device performs a first request for onboarding information. In response to determining that a first initialization of the network device has not occurred, the network device performs the first initialization by configuring, with the onboarding information, the network…
Optical cladding layer design
Granted: November 10, 2020
Patent Number:
10833213
Embodiments of the invention describe apparatuses, optical systems, and methods related to utilizing optical cladding layers. According to one embodiment, a hybrid optical device includes a silicon semiconductor layer and a III-V semiconductor layer having an overlapping region, wherein a majority of a field of an optical mode in the overlapping region is to be contained in the III-V semiconductor layer. A cladding region between the silicon semiconductor layer and the III-V…
