TOI Author :: Shyam Kota

The NAT Flow feature is an unusual NAT feature that allows the translation of traffic streams in ways that go beyond the typical translations achieved with NAT. In that sense, the feature is not strictly a standard NAT feature; it can be seen as a combination of NAT and DirectFlow.

Line cards, fabric cards, and switch cards now alert the user whenever a card consumes excessive power. There are

The per port scheduler compensation feature is used to make adjustments to the packet size seen by the scheduler for

Route redistribution is a process that allows a network to use a routing protocol to dynamically route traffic based

gNOI (gRPC Network Operations Interface) defines a set of gRPC based microservices for executing operational

This feature terminates GRE packets on a TapAgg switch by stripping the GRE header and then letting the decapped packets go through the normal TapAgg path. With this feature, we can use an L3 GRE tunnel to transit tapped traffic to the TapAgg switch over an L3 network. That would widely extend the available use cases for TapAgg.

This feature is an extension of Qos Policy. It allows the user to configure Qos Policy Map counters. If a class map is

QinQ L3 subinterfaces divide a single ethernet or port channel interface into multiple logical L3 interfaces based

This feature implements RFC 3478. It allows devices to preserve the MPLS LDP LFIB entries in the forwarding plane if

This priority drop feature provides a way to drop packets according to QOS priority when the device ingress maximum packet rate is oversubscribed.

The CPU CoS mapping feature can be configured on Front panel ports, sub-interfaces, LAG and LAG sub-interfaces. SVIs and Tunnel interfaces are not supported at this time.

This mechanism allows a session to lock the configuration of the switch to prevent any other session from altering the

This feature improves the switch behavior and predictability when it runs out of memory (OOM). Common contributing

This feature allows setting the desired maximum VOQ latency. Drop probabilities are adjusted in hardware to meet this limit.

This feature adds two new show commands to better display route map information. The first show command displays

Add support for IPv6 management address in LLDP. An LLDP packet requires a management address, that is typically one

Previously, Tap Aggregation and Mirror to GRE timestamping only supported timestamping packets in International

IPv4 routes of certain prefix lengths can be optimized for enhanced route scale on 7500R, 7280R, 7500R2 and 7280R2

This article describes a set of CLI commands to create TCAM profiles. The profile is composed of a set of TCAM features, with each feature having customized lookup key, actions and packet types to hit.

The objective of Maintenance Mode on MLAG is to gracefully drain away the traffic (L2 and BGP) flowing through a switch

The base kernel for EOS was upgraded to use newer maintenance version 4.9.122 from version 4.9.108, bringing many

This feature introduces the possibility of creating Tap Aggregation PMF profiles consisting of 80 bit keys, to make a more efficient use of TCAM resources. Previously, we could only have key sizes of 160 or 320 bits. 

Fair Adaptive Dynamic Thresholds (FADT) provides efficient allocation of shared packet buffer resources amongst

This feature modifies the display format of “show interface Tunnel <num> counters” on hardware

When a switchport receives its own STP BPDU, the port goes into role ‘Backup’ and state ‘Discarding’. The

TCAM is an important hardware resource which is used by ACL, Pbr, Qos on 7160 series. There are a total of 8 Tcam banks on

Arista Macro Segmentation Service (MSS) is a service in CloudVision which dynamically places a firewall (FW) in the

This feature allows the network administrator to set a flag to allow the Explicit Congestion Notification (ECN)

Add the ability to generate SYSLOG messages when a transceiver's digital optical monitoring threshold is crossed.

ContainerTracer provides a composite view of the physical network topology and Kubernetes. Kubernetes and CVX must

This document explains how to configure and deploy Arista MSS with Fortinet FortiGate firewalls (also called

EOS 4.21.3F adds support for OSPF Non Stop Forwarding in the multi agent routing protocol model.

4.21.3F introduces support for ‘Replace AS Path’ in the multi agent routing protocol model.

This feature introduces a configurable LSP refresh interval for originating ISIS LSPs. The default

RPF Exceptions TOI can be accessed here. 4.21.3F introduces support for this feature on SVIs(Switched

The route map subroutine (referred from here on as sub route map) configuration simplifies routing policies by

RIB Route Control is a collection of mechanisms for controlling how IP routing table entries get used. Next hop

4.21.3F introduces support for Bidirectional PIM in the platforms listed below. The TOI for the support in earlier

Sub interface counters provide ability to count packets and bytes incoming and outgoing on L3 sub interfaces. This

The CLI command “switchport dot1q vlan tag disallowed” disallows all the vlan tagged packets sent on L2

This feature enables MACsec service for non MACsec capable front panel ports. MACsec over front panel port is

Modular systems and fixed systems with multi faps by default use fabric egress replication mode. With fabric egress

The route map feature in BGP allows filtering and manipulating BGP path information. It combines set statements with

The BGP graceful restart mechanism defined in RFC4724 limits the usage of BGP graceful restart to BGP protocol

MMU Profile CLI allows to reserve buffers in either cells or bytes. This feature eases the configuration as different

7160 platform supports 2 different profiles, algomatch and tcam acl ipv4 ingress for configuring ACLs:

Added support to match on vlan ID in mirroring ACLs (ipv4, ipv6 and mac acls). All 7050X, 7050X2,

Currently, a single route map sequence can have a “match community”, and a “match extcommunity” clause.

This feature adds support for PIM SSM (Source Specific Multicast) for IPv6 Multicast Routing on platforms listed

DCS 7280SRM 40CX2 (see picture below), is a 1RU fixed system, which has two CFP2 ports (41 and 42), capable of hosting