Arista Networks is a computer networking company headquartered in Santa Clara, California, USA. The company designs and sells multilayer network switches to deliver software-defined networking solutions for large datacenter, cloud computing, high-performance computing and high-frequency trading environments. Arista's products include an array of 10100 Gigabit Ethernet low-latency cut-through switches, including the 7124SX, which remained the fastest switch using SFP+ optics through September 2012, with its sub-500ns latency, as well as the 7500 series, Arista’s award-winning modular 10G100Gbit/s switch. Arista's own Linux-based network operating system, EOS , runs on all Arista products. Wikipedia.
Arista Networks | Date: 2017-03-08
A method for processing IP multicast packets in a MLAG domain. The method includes processing the IP multicast packet using the bridging functionality and the routing functionality implemented by each of the MLAG peers to process the IP multicast packets.
Arista Networks | Date: 2016-08-11
A method and apparatus of a device that updates a key range in a database for a writer of a network element that replicates changes to the database to a plurality of readers. In an exemplary embodiment, the device receives a key deletion notification for a key, where the key deletion notification is a notification to delete a key from the database and the database stores data used by the network element. The device further locates the key in an ordered data structure, the ordered data structure stores a plurality of keys in an ordered fashion. The device additionally deletes the in the ordered data structure and determines an upper and lower bound key for the deleted key. In addition, the device creates an empty key range from the upper and lower bound keys and creates an empty key range notification from the empty key range.
Arista Networks | Date: 2016-12-14
Various embodiments of a network element comprising a control plane including stream tracer logic are described herein. The network element additionally includes a data plane coupled to the control plane, where the data plane includes forwarding logic to forward a unit of network data from an ingress interface to an egress interface. The stream tracer logic can be configured to cause marking logic to mark selected units of network data for to be counted by counting logic and to cause the counting logic to count marked units of network data. The stream tracer logic can determine whether units of network data are dropped within the forwarding logic via comparison of an ingress count of the marked units of network data with an egress count of the marked units of network data.
Arista Networks | Date: 2016-02-01
Various embodiments are described herein, which provide a network element comprising a network port to receive production network data that is used for purposes other than testing the performance of a network, a data plane coupled to the network port, the data plane including a timing module to append a time stamp to a set of one or more time stamps included within the production network data, and a control plane coupled to the data plane, the control plane including a latency analyzer to analyze the set of one or more time stamps included within the production network data.
Arista Networks | Date: 2016-10-27
A method for virtual extensible local area network (VXLAN) encapsulation. The method includes receiving a first augmented MAC frame on a first ingress port of a first network device, where the first augmented MAC frame includes a first egress port ID (EPID), a first ingress port ID (IPID), and a first MAC frame. The method further includes identifying a first destination VXLAN tunnel endpoint (VTEP) internet protocol (IP) address based on the first EPID, where the first destination VTEP IP address is associated with a first destination VTEP. The method further includes identifying a source VTEP IP address based on the first IPID, performing VXLAN encapsulation of the first MAC frame to obtain a VXLAN frame, and sending the VXLAN frame to the first destination VTEP via a first egress port of the first network device.
Arista Networks | Date: 2016-08-23
Described herein are various embodiments of a network element to process routing entries in a forwarding information base (FIB) for hosts that are directly attached to a multi-layer network element to encode address resolution protocol (ARP) data into forwarding equivalence class (FEC) entries for the directly attached hosts. One embodiment provides for a network element comprising a control plane including a forwarding agent and a data plane coupled to the control plane. The data plane can include a forwarding engine to forward a unit of network data from an ingress interface to an egress interface. The forwarding agent can be configured to program the forwarding engine with a forwarding information base having data-link layer forwarding data encoded into a network-layer forwarding entry.
Arista Networks | Date: 2016-06-20
A method and apparatus of a device that grows and/or shrinks a table that is shared between a writer and a plurality of readers is described. In an exemplary embodiment, a device receives an entry to be added to the shared table. In response to receiving the entry, the device remaps shared table to add a new storage segment to the shared table. The device further adds the entry to the shared table, where the entry is stored in the new storage segment. In addition, the device updates a shared table characteristic to indicate that the shared table has changed. The device further shrinks the shared table by remapping the table to remove a segment of the table.
Arista Networks | Date: 2016-12-19
A method for initializing the border gateway protocol (BGP) on network devices. The method includes initializing, by a first network device, a BPG session with a second network device. The method further includes receiving, by the first network device from the second network device, route updates and an end of routing information base (EOR) marker. The method further includes updating an n_EOR variable maintained by the first network device after receiving the EOR marker and, after updating the n_EOR variable, determining that the first network device has received route updates from all peer network devices, and subsequently updating, in the first network device, a routing information base (RIB) using route updates received from the peer network devices. The method further includes updating, in the first network device, a forwarding information base (FIB) using the updated RIB and advertising, to all peer network devices by the first network device, routes.
Arista Networks | Date: 2016-08-25
Embodiments for communicating packets with a first port of a network element without the first port being communicatively coupled to another device (e.g., testing equipment) are described. In one embodiment, a packet is generated by testing equipment that is communicatively coupled to a second port of the network element. The packet includes a tag that uniquely identifies the first port. The network element communicates the packet from the second port to the first port based on the tag. The network element also removes the tag from the packet. The removal can occur before the packet is received at the first port or after the packet is received at an ingress module of the first port. In response to the removal of the tag, the network element enters the first port into a loopback mode that is internal to the first port.
Arista Networks | Date: 2016-07-14
Various embodiments are described herein that provide a network system comprising a set of peers within a link aggregation group (LAG), the first set of peers including a first network element and a second network element and a status resolution server to connect to the set of peers within the link aggregation group, wherein one or more peers within the LAG is to query the status resolution server to determine an operational status of a peer in the set of peers in response to detection of an apparent failure of the peer.