Tag :: TOI

S supports L3 EVPN gateway with Type 5 nexthop-self mechanism. While the nexthop-self mechanism is simple to operate, the L3 gateway lacks the support to rewrite the EVPN route distinguisher as well as the BGP route target. This feature supports an alternative L3 EVPN gateway mechanism using multi-domain L3 VRF instead. A multi-domain IP VRF allows configuring not only the local domain route distinguisher (RD) and route targets (RT), but also the remote domain route distinguisher and route targets on a DCI gateway.

This document describes the configuration and behavior of physical interfaces on the DCS-7060CX5 series switch including:

This document describes the configuration and behavior of physical interfaces on the DCS-7060X6-series switches including: Speed, Forward Error Correction (FEC), FEC histograms, Logical ports, Precoding, Transceiver Online Insertion and Removal (OIR).

Arista’s DCS-7130LBR series of switches are powerful network devices designed for ultra latency applications along with a wealth of networking features.

Arista’s DCS-7135LB series of switches are network devices designed for ultra low-latency applications along with a suite of networking features. It combines the following functionality on a single device

ACL based QoS marking and policing is supported on DCS 7160 switches. Currently we support IPv4 ACL based QoS via

Stream Control Transmission Protocol (132) is a transport layer protocol, much like TCP. After the IP header, a

Delay based ECN on DCS 7280SE and DCS 7500E adds support for measuring the queueing delay that an IPv4 unicast routed

This feature introduces a configurable delay for flushing the MAC address when the network interface goes down, reducing unnecessary MAC address flushing during transient link failures. By default, when the link goes down MAC addresses associated with the link are flushed immediately. With this feature MAC address flushing is delayed by the configured time when the link goes down and if the link comes up before the configured timer elapses MAC addresses won’t be flushed from the forwarding table and the timer is cancelled. 

As Ethernet technologies made their way into the Metropolitan Area Networks ( MAN ) and the Wide Area Networks ( WAN ), from the conventional enterprise level usage, they are now widely being used by service providers to provide end-to-end connectivity to customers. Such service provider networks are typically spread across large geographical areas. Additionally, the service providers themselves may be relying on certain internet backbone providers, referred to as “operators”, to provide connectivity in case the geographical area to be covered is too huge.

CloudVision Portal release 2017.2.0 introduces support for the network wide Telemetry framework consisting of the

IPsec control packets are generally sent out of any of the egress interfaces based on the ECMP IP route that covers the remote IP address of the IPsec connection. This is not suited in some deployments. For example, when an IPsec end device is establishing connections with another device across more than one ISP (Internet Service Provider) and the control packets may get different NAT treatment based on which ISP they are going over.

This feature detects duplicate IP addresses configured on the switch already owned by hosts the switch has already learned. When the duplicate IP address is detected, a syslog message will be generated. It can help the network operator to identify IP address misconfiguration.

CV-CUE displays the missing VLANs in the network, allowing Network Administrators to diagnose and resolve the issue quickly. Sometimes out-of-the-box Access Points (APs) cannot send and receive traffic through the switchport they are connected to because the Switch doesn’t have the same VLAN as the AP. This issue could be time-consuming to diagnose and identify as Network Administrators follow a series of error elimination steps to determine the root cause. After the administrator identifies the root cause, the fix is trivial; they only need to create the missing VLANs in the Switch network.

CloudVision allows users to monitor a device’s environment by displaying graphs for temperature, power supply and fan speed. Power Supply shows the power used at each power socket on the device. Previously users could only view a visualization of output power. A visualization for input power is now available to view.

The above figure depicts a typical wireless network deployment. In the above deployment, the traffic from wireless networks are encapsulated into VXLAN tunnels by the AP (Access Point) VTEPs and terminated at the aggregation switches. When a host on the wireless network transmits a DHCP request broadcast packet, the AP encapsulates it in a VXLAN tunnel and sends it to the aggregation switch.

With the 12.0 release, you can configure DHCP fingerprinting to allow or deny clients getting connected to an SSID. Using DHCP fingerprinting, you can identify the operating system (OS) of the client based on the DHCP exchange packets between the client and the DHCP server. 

Dynamic Host Configuration Protocol (DHCP) is a feature which can be used to provide an IP address to the interfaces on

The DHCP relay feature, forwards DHCP packets between a client and the DHCP server when the server is not in the same broadcast domain as the client. The DHCP relay should be configured on the gateway interface (SVI/ L3 interface) for the clients.

The EOS DHCP relay agent now supports forwarding of DHCP requests to DHCP servers located in a different VRF to the DHCP

Support for DHCPv4 (RFC 2131)  and DHCPv6 Server (RFC 8415) was added to EOS-4.22.1 and EOS-4.23.0 respectively. EOS DHCP server leverages ISC Kea as backend. The router with DHCP Server enabled acts as a server that allocates and delivers network addresses with desired configuration parameters to its hosts.

EOS supports the DHCP Relay feature, which relays DHCP Requests/Responses between DHCP clients and DHCP servers in different subnets. However, the DHCP server does not have visibility of where the request originated from and can only make IP address allocation decisions based on the client MAC address alone (client MAC address is included in the DHCP packet as part of the payload). To remedy that, DHCP Option-82 was formalized to allow relay agents to include Remote ID and Circuit ID so that DHCP servers can apply a more intelligent allocation policy.

DHCPv6 Prefix Delegation support enables a DHCP relay agent to program routes for addresses assigned by a DHCP server. The assigned prefixes could either be DHCPv6 IA_PD prefix delegation addresses, or DHCPv6 IA_NA global /128 addresses.

Directed broadcast is method of transfer to send a packet to recipients in a target subnet. This is done by sending a

DirectFlow runs alongside the existing layer 2/3 forwarding plane, enabling a network architecture that

The following new enhancements to DirectFlow and/or OpenFlow are added in EOS 4.15.0F:. DirectFlow

With the 19.0 release, network administrators can turn off 802.11b rates on SSIDs operating in the 2.4 GHz band. Turning off these legacy rates enhances overall network performance and prevents the association from outdated 802.11b clients.

IEEE802.1D 2004, Section 7.12.6 specifies destination MAC addresses that are normally trapped (not forwarded) by

The Switch detail page in the DMF GUI has a new Inventory tab displaying information about optics, cables, and transceivers.

This document describes the updates to the DANZ Monitoring Fabric (DMF) 8.7 release verified scale and performance numbers.

The hardware support update details newly supported hardware and other changes in the DANZ Monitoring Fabric (DMF) release 8.7.0.

This document describes the updates to the DANZ Monitoring Fabric (DMF) 8.8 release verified scale and performance numbers. Verified scale values for “DCA-DM-RN760” and “DCA-DM-RN760L” Recorder Nodes.

The hardware support update details newly supported hardware and other changes in the DANZ Monitoring Fabric (DMF) release 8.8.0.

Egress Filtering is an option to send different traffic to each tool attached to the policy's delivery setting. It provides additional filtering at the delivery ports based on the egress filtering rules specified at the interface.

As of DMF version 8.7.0, all DMF appliances will operate on the AlmaLinux 9.4 operating system, replacing the previous Ubuntu 20.04 LTS. This migration of the underlying operating system will not impact any currently supported features.

The DMF Recorder Node now supports deployment as a Virtual Machine (VM) for functional testing in Proof of Concept (POC) environments. Performance is limited and will vary based on allocated VM resources. DMF 8.7.0 and later Recorder Node images support being deployed as a VM.

This feature provides a method to rename a DMF object. DMF 8.7 Controllers support the Policy rename feature.

The DANZ Monitoring Fabric (DMF) allows the integration and monitoring of virtual machines in a VMware NSX fabric deployed in a vSphere environment. The DMF Controller communicates with NSX to retrieve its managed inventory and configures port mirroring sessions for selected virtual machines managed by the NSX fabric.

The DANZ Monitoring Fabric (DMF) allows the integration and monitoring of virtual machines in a VMware NSX fabric deployed in a vSphere environment. The DMF Controller communicates with NSX to retrieve its managed inventory and configures port mirroring sessions for selected virtual machines managed by the NSX fabric.

Currently data packets going over a DPS+IPsec tunnel have a fixed source IP, destination IP, protocol, source port and destination port after encapsulation for a given DPS path. Because of this, there is no good way to load-balance the tunneled traffic. However, to improve performance there is a need to load-balance the tunneled traffic. 

With this feature, user can fetch various internal hardware drops info from each switch and isolate the switch or

Precision Time Protocol (PTP) management messages are general PTP messages sent to PTP-enabled switches on the data plane. On Arista switches, its behavior depends on the configured PTP mode. In Boundary Clock mode, they are handled by the control plane. In Transparent Clock mode, they are forwarded in the data plane. PTP management messages can be sent through the PTP network either in a multicast or unicast fashion (by using ptp forward unicast, see Forwarding Unicast PTP Packets in Boundary Mode).

DCS 7280E. Arad QOS MAP:. This command assigns the DSCP rewrite value of 37 to traffic classes 2, 4, and 6.

Dual Tag VLAN mapping feature defines mapping between (outer VID and inner VID of double tagged packet) and bridging

Starting with EOS4.15.0F, dynamic and symmetric LAG hashing policies are supported on the 7500E platform. Dynamic

Dynamic Explicit Congestion Notification (D-ECN) configures an ECN marking threshold that changes dynamically based on a transmit queue’s available shared buffers. A D-ECN offset and D-ECN floor is configured per unicast transmit queue which defines how the ECN marking threshold will change as the queue’s shared buffer limit changes.

Until EOS release 4.32.0F, EOS allows users to statically configure link min-delay and max-delay used for IS-IS FlexAlgo. This feature adds support for dynamic measurement of link delay using the TWAMP Light protocol described in RFC 8186 and provides it to IS-IS FlexAlgo dynamically.

This document describes how to configure and monitor this feature.

Dynamic NAT connection limit is a feature that provides the functionality to limit the number of dynamic NAT connections.

Dynamic resizing of nexthop groups, as the name suggests, is a feature that enables a nexthop group to dynamically

This feature allows eAPI to run in multiple non default VRFs on the same physical router. In this way, users can