Filtered Mirroring allows certain packets to be selected for mirroring, rather than all packets ingressing or egressing a particular port.

This document presents Arista Macro-Segmentation Service - Firewall (MSS-FW) deployment in a network with multiple Virtual Routing and Forwarding (VRF) instances.

This feature introduces the hardware forwarding support for IPv4 over IPv4, GRE-Tunnel interfaces on Arista Switches. A GRE-Tunnel interface acts as a logical interface which performs the GRE encapsulation or decapsulation.

MRU (maximum receive unit) enforcement provides the ability to drop frames that exceed a configured threshold on the ingress interface.

MTU MRU EOS 4.25.1F EOS 4.25.0F

In a symmetric network topology, for the same ECMP (Equal Cost Multi Path) route programmed at different devices in a switch layer, the various devices can program ECMP next hops in the FEC (Forwarding Equivalence Class) for that route in varying orders.

EOS 4.25.0F EOS 4.30.1F Ordered FEC

Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP subnet. There are three types of VLAN within a private VLAN