A method and a router device for managing memory for network overlay routes with fallback route support prioritization may be provided. A network overlay route as a candidate network overlay route may be obtained at a router for storage in a memory. The memory may store a plurality of network overlay routes for forwarding user plane traffic in a network. An assessment for storage of the candidate network overlay route based on a priority level indicator of the candidate network overlay route may be performed. The priority level indicator may be indicative of a fallback route support level of the candidate network overlay route in the router. Based on the assessment, at least one of the following may be performed: adding the candidate network overlay route to the memory and refraining from adding the candidate network overlay route to the memory.

A network device receives a packet from a client device, and identifies, based on receiving the packet, a destination of the packet. The network device determines, based on information included in an application cache, an application associated with the destination of the packet, where the first network device, the client device, and the application cache are included in a first local network. The network device determines, based on the information included in the application cache, a policy rule associated with the application, and applies the policy rule to the packet.

A method and a traffic processing unit (200) for handling traffic in a communication network when the traffic is distributed across a set of traffic processing units. When receiving a packet of a traffic flow distributed to said traffic processing unit, the traffic processing unit (200) assigns a packet class to the received packet, which class can be active or inactive in the traffic processing unit. The traffic processing unit obtains state information of the assigned packet class. If the packet class is detected as active the state information is retrieved from a local storage (200C) in the traffic processing unit, and if the packet class is detected as inactive the state information is fetched from a central storage (204). The traffic processing unit then performs stateful packet processing of the received packet based on the obtained state information.

A network interface controller can be programmed to direct write received data to a memory buffer via either a host-to-device fabric or an accelerator fabric. For packets received that are to be written to a memory buffer associated with an accelerator device, the network interface controller can determine an address translation of a destination memory address of the received packet and determine whether to use a secondary head. If a translated address is available and a secondary head is to be used, a direct memory access (DMA) engine is used to copy a portion of the received packet via the accelerator fabric to a destination memory buffer associated with the address translation. Accordingly, copying a portion of the received packet through the host-to-device fabric and to a destination memory can be avoided and utilization of the host-to-device fabric can be reduced for accelerator bound traffic.

Described herein are systems, methods, and software to enhance flow operations on a host computing system. In one implementation, a virtual switch on a host identifies a packet from a virtual node. In response to identifying the packet, the virtual switch determines whether the packet corresponds to a cached result action based on traits of the packet. If the packet corresponds to a cached result action, then the virtual switch may process the packet in accordance with the cached result action. In contrast, if the packet does not correspond to a cached result action, then the virtual switch may process the packet in accordance with first flow operations to determine a result action, and cache the result action for use with future packets.

In a spanning tree network, topology change notifications are omitted when a port becomes forwarding if the peer port is an Alternate or Backup port in Discarding state. Other features are also provided.

A network device receives a packet from a client device, and identifies, based on receiving the packet, a destination of the packet. The network device determines, based on information included in an application cache, an application associated with the destination of the packet, where the first network device, the client device, and the application cache are included in a first local network. The network device determines, based on the information included in the application cache, a policy rule associated with the application, and applies the policy rule to the packet.

A networked electronic device produces a data object comprising content and assigns a location-independent application-level name to the data object. The location-independent application-level name is independent of any network location at which the content is available. The networked electronic device maps the location-independent application-level name to an IP address, generates a DNS resource record specifying the mapping of the location-independent application-level name to the IP address, and provides the DNS resource record to a DNS network node.

Retrieving content in an Internet Protocol version 6 (IPv6) network may be provided. A lookup request associated with content may be received from a network node at a server having a mapping database. A response having an ordered list of more than one IPv6 addresses may be generated. The ordered list of the more than on IPv6 addresses may include IPV6 prefixes. Each of the more than one IPv6 addresses may include a first portion having a content identifier and a second portion having an indication of a location of the content. The response may be transmitted to the network node.

A method is implemented by a network device where the method performs a trace flow process in a packet processing pipeline of the network device. The packet processing pipeline includes a trace table and a forward table. The method encompasses forwarding a trace packet to the trace table, forwarding a copy of the trace packet to a trace analyzer in response to determining that a trace bit is set in the trace packet, forwarding the trace packet to the forward table, and determining a next stage of the packet processing pipeline based on trace packet meta data and a value stored in a trace register.