Regulating enqueueing and dequeuing border gateway protocol (BGP) update messages
Granted: November 8, 2022
Patent Number:
11496559
A network device, associated with peer network devices, may receive policy information for a protocol; and compute a first update message based on information regarding a route associated with the policy information. The network device may determine that an upper utilization threshold for one or more of peer queues, associated with the peer network devices, is not satisfied; and write the first update message to the peer queues based on determining that the upper utilization threshold is…
SSL proxy whitelisting
Granted: November 8, 2022
Patent Number:
11496504
A network device may receive a first data packet. The network device may determine that a level of available computing resources satisfies a threshold level. The network device may perform a secure socket layer (SSL) proxy function based on the level of available computing resources satisfying the threshold level. The network device may receive a second data packet. The network device may determine that the level of available computing resources fails to satisfy the threshold level. The…
Switch fabric packet flow reordering
Granted: November 8, 2022
Patent Number:
11496398
An ingress fabric endpoint coupled to a switch fabric within a network device reorders packet flows based on congestion status. In one example, the ingress fabric endpoint receives packet flows for switching across the switch fabric. The ingress fabric endpoint assigns each packet for each packet flow to a fast path or a slow path for packet switching. The ingress fabric endpoint processes, to generate a stream of cells for switching across the switch fabric, packets from the fast path…
Defining non-forwarding adjacencies in bipartite networks, such as Clos networks, having a level 2 backbone and level 1 nodes
Granted: November 8, 2022
Patent Number:
11496391
Problems associated with providing a large Clos network having at least one top of fabric (ToF) node, a plurality of internal nodes, and a plurality of leaf nodes may be solved by: (a) providing L2 tunnels between each of the leaf nodes of the Clos and one or more of the at least one ToF node to ensure a non-partitioned IGP L2 backbone, and (b) identifying the L2 tunnels as non-forwarding adjacencies in link state topology information stored in ToF node(s) and leaf node(s) such that the…
Utilizing egress peer engineering to determine optimized traffic plans and to implement an optimized traffic plan
Granted: November 8, 2022
Patent Number:
11496389
A device determines traffic and costs associated with a network that includes network devices interconnected by links, and determines traffic assignments for the network based on the traffic and the costs associated with the network. The device determines tunnel use for the network based on the traffic assignments, and determines peer link use for the network based on the tunnel use. The device determines costs associated with the traffic assignments, the tunnel use, and the peer link…
Interspersing network traffic across members of a container label-switched path
Granted: November 1, 2022
Patent Number:
11489767
A network device may define a container LSP that includes multiple member LSPs. Each of the multiple member LSPs defines a path from the network device through a network of a plurality of network devices. The network device may receive traffic that includes multiple packet flows. The network device may identify a first set of packet flows that are intolerant to packet reordering. The network device may identify a second set of packet flows that are tolerant to packet reordering. The…
Processing instructions to configure a network device
Granted: November 1, 2022
Patent Number:
11489724
A controller device includes a memory configured to store a tree structure comprising a plurality of nodes, wherein the tree structure comprises a set of sub-structures, and wherein the tree structure defines a configuration of a network device of a set of network devices such that each node of the plurality of nodes corresponds to a respective resource of the network device. Additionally, the controller device includes processing circuitry configured to receive an instruction to update…
Systems and methods for efficient configuration file management and distribution by network management systems
Granted: November 1, 2022
Patent Number:
11489712
A disclosed method may include (1) generating a configuration file that represents a specific configuration of a network device included in a network, (2) storing the configuration file that represents the specific configuration of the network device among a set of configuration files available via an NMS, (3) assigning to the configuration file via the NMS, a configuration identifier that uniquely identifies the configuration file among the set of configuration files available via the…
Apparatus, system, and method for achieving accurate insertion counts on removable modules
Granted: November 1, 2022
Patent Number:
11489528
A disclosed apparatus for accomplishing such a task may include (1) a circuit board incorporated into a module designed for insertion into slots of computing devices, (2) at least one conductive contact disposed on the circuit board, (3) a counter circuit disposed on the circuit board and communicatively coupled to the conductive contact, wherein the counter circuit comprises (A) a signal-change detector that detects signal changes as the module is inserted into one of the slots of the…
Seamless end-to-end segment routing across metropolitan area networks
Granted: October 25, 2022
Patent Number:
11483242
Techniques are described for providing end-to-end segment routing paths across metropolitan area networks. For example, a method comprises receiving, by an area border router (ABR) connected to one or more metropolitan area networks and a core network, a packet including a segment routing label stack including at least a label of the ABR, a context label associated with a routing instance of the ABR, and a subsequent label identifying a device in the segment routing path, determining,…
Detection of network measurement inaccuracies
Granted: October 25, 2022
Patent Number:
11483229
The disclosure describes techniques for detecting network measurement inaccuracies through the detection of sender delays or packet drops. For example, a sender device of a test packet may determine whether the sender device is experiencing any issues in sending the test packet to a receiver device and notify a controller of the issues such that the controller may generate an indication that one or more Key Performance Indicator (KPI) measurements based on the test packets from the…
Guided alignment of wireless device orientation
Granted: October 18, 2022
Patent Number:
11477755
Embodiments provide for guided alignment of the orientation of two wireless devices. A first wireless device is at a known position and a known orientation. A signal from a second wireless device is received via a plurality of receive elements of the first wireless device. The first wireless device measures phase differences of the signal at the plurality of receive elements, and determines locations of each of the second wireless device's transmit elements based on the differences.…
High availability for streaming telemetry
Granted: October 18, 2022
Patent Number:
11477288
An example network device includes a primary node and a secondary node. The primary node includes one or more processors implemented in circuitry and configured to receive a message from a collector device requesting to subscribe to statistics of a metrics streaming session; initiate a telemetry session for sending the statistics to the collector device; replicate data of the telemetry session to the secondary node; and send the data of the telemetry session to the collector device. In…
Deploying secure neighbor discovery in EVPN
Granted: October 18, 2022
Patent Number:
11477233
Techniques are described for providing security extensions to neighbor discovery in Ethernet Virtual Private Network (EVPN). For example, a network device that implements Ethernet Virtual Private Network (EVPN) receives a neighbor discovery response message including a nonce originated by a second network device and not originated by the first network device. The network device processes the neighbor discovery response message including the nonce originated by the second network device…
Micro SID packet processing
Granted: October 18, 2022
Patent Number:
11477119
An example first network device includes a control unit configured to execute at least one application and a forwarding unit. The forwarding unit includes an interface configured to receive packets, at least one packet processor operably coupled to a memory, and a forwarding path, wherein at least a portion of the forwarding path is stored in the memory and is executable by the at least one packet processor. The forwarding unit is configured to receive an advertisement originated by a…
High-availability switchover based on traffic metrics
Granted: October 18, 2022
Patent Number:
11477117
A node may be an active node associated with a high-availability service and may route session traffic communicated via a first route path between a first endpoint and a second endpoint. The node may determine a first measurement of a traffic metric of the first route path and may receive, from another node associated with the high-availability service, a second measurement of the traffic metric of a second route path. The node may compare the first measurement and the second measurement…
Layer-2 network extension over layer-3 network using encapsulation
Granted: October 18, 2022
Patent Number:
11477115
Techniques are disclosed for session-based routing within Open Systems Interconnection (OSI) Model Layer-2 (L2) networks extended over Layer-3 (L3) networks. In one example, L2 networks connect a first client device to a first router and a second client device to a second router. An L3 network connects the first and second routers. The first router receives, from the first client device, an non-session-based L2 frame destined for the second client device. The first router forms an L3…
Weighted multicast join load balance
Granted: October 18, 2022
Patent Number:
11477113
In some examples, a method includes receiving, by an egress network device for a network, messages from each of a plurality of ingress network devices for the network, wherein each of the messages specifies a multicast source, a multicast group, and an upstream multicast hop weight value for multicast traffic for the multicast source and the multicast group; selecting, by the egress network device and based on the upstream multicast hop weight values specified by the received messages,…
Network controller deployment
Granted: October 11, 2022
Patent Number:
11469958
A method for configuring a fabric managed by a software-defined networking (SDN) controller includes, with a first control host installed in a first rack having a first management switch and a second control host installed in a second rack, executing controller nodes that implement an SDN controller using a controller virtual network extending between the first rack and the second rack. The first management switch is configured to route traffic between the controller virtual network and…
Controlling paths in a network via a centralized controller or network devices
Granted: October 11, 2022
Patent Number:
11469993
A device provides path data associated with a network that includes network devices interconnected by links. The path data includes data identifying a first path and a second path to be provided through the network. The device provides an instruction to cause the network devices to provide information identifying the first path and to route traffic via the first path, and receives an indication of a failure associated with the first path. The indication causes the network devices to…
