- Written by Tula Kraiser
- Posted on January 3, 2021
- Updated on June 24, 2022
- 7761 Views
The primary challenge with using a switching ASIC as a load balancer has been how to deal with changes in the network topology without disrupting existing TCP connections.
- Written by Michael (Mike) Fink
- Posted on December 22, 2017
- Updated on December 2, 2024
- 14294 Views
Filtered Mirroring allows certain packets to be selected for mirroring, rather than all packets ingressing or egressing a particular port.
- Written by Manoj Agiwal
- Posted on September 30, 2015
- Updated on July 12, 2024
- 17724 Views
BGP Non Stop Forwarding (NSF) aims to minimize the traffic loss when the the following scenarios occur:
- Written by Sourabh Bollapragada
- Posted on December 22, 2020
- Updated on January 29, 2024
- 8468 Views
This feature supports counting ECN-marked packets (ECN = Explicit Congestion Notification) on a per egress port per tx-queue basis. The feature can be used to gather these packet counts via CLI or SNMP. There are two cases when an ECN-marked (congestion) packet is counted on the egress port/queue:
- Written by AKSHAYA Sridharan
- Posted on December 17, 2020
- Updated on June 30, 2022
- 8249 Views
Egress traffic-policing can be applied on L3 Ethernet subinterfaces for outbound traffic.
- Written by Rahul Vasist
- Posted on April 20, 2020
- Updated on January 29, 2024
- 9499 Views
EOS-4.24.0 adds support for hardware-accelerated sFlow on R3 systems. Without hardware acceleration, all sFlow processing is done in software, which means performance is heavily dependent on the capabilities of the host CPU. Aggressive sampling rates also decrease the amount of processing time available for other EOS applications.
- Written by Neel Neogi
- Posted on December 30, 2020
- Updated on June 8, 2023
- 12505 Views
The document describes the support for dedicated and group ingress policing on interfaces without using QoS policy-maps to match on the traffic and apply policing.
- Written by Nathan Wolfe
- Posted on February 15, 2018
- Updated on November 7, 2024
- 12121 Views
Introduced in EOS-4.20.1F, “selectable hashing fields” feature controls whether a certain header’s field is used in the hash calculation for LAG and ECMP.
- Written by Phillip Jie
- Posted on November 10, 2020
- Updated on October 30, 2024
- 8049 Views
MRU (maximum receive unit) enforcement provides the ability to drop frames that exceed a configured threshold on the ingress interface.
- Written by Tanushree Bansal
- Posted on February 23, 2022
- Updated on June 2, 2022
- 7149 Views
This feature provides isolation and allows segregating/dividing the link state database based on interface.
- Written by Petr Budnik
- Posted on December 16, 2020
- Updated on June 23, 2022
- 8186 Views
ITU-T G8275.1 is a PTP profile defined by ITU-T for telecommunication applications. It defines a set of functions from the IEEE 1588 to achieve phase/time synchronization with full timing support from the network (meaning, all of the network devices support PTP).
- Written by Kalash Nainwal
- Posted on December 14, 2020
- Updated on July 31, 2024
- 12440 Views
RSVP-TE, the Resource Reservation Protocol (RSVP) for Traffic Engineering (TE), is used to distribute MPLS labels for steering traffic and reserving bandwidth. The Label Edge Router (LER) feature implements the headend functionality, i.e., RSVP-TE tunnels can originate at an LER which can steer traffic into the tunnel.
- Written by Anitha Muppalla
- Posted on May 15, 2020
- Updated on September 28, 2023
- 7594 Views
Subinterfaces divide a single ethernet or port channel interface into multiple logical L2 or L3 interfaces based on the 802.1q or 802.1ad tags of incoming traffic. Subinterfaces are commonly used in the L2/L3 boundary device, but they can also be used to isolate traffic with 802.1q tags between L3 peers by assigning subinterfaces to different VRFs or different L2 bridging domains.
- Written by Harsh Goyal
- Posted on December 21, 2020
- Updated on February 15, 2024
- 8025 Views
IPv4 Unicast Reverse Path Forwarding (uRPF) can help limit malicious IPv4 traffic on a network. uRPF works by enabling the router to verify reachability (routing) of the source IP address (SIP) in the packet being forwarded. If the SIP is determined to not be a valid address, the packet is dropped.
- Written by Nik Zaborovskii
- Posted on December 8, 2020
- Updated on August 29, 2024
- 10081 Views
Multicast NAT is a feature that performs NAT translations on multicast traffic. It can be configured under SVIs,
- Written by Sulyab Thottungal Valapu
- Posted on December 7, 2020
- Updated on September 4, 2023
- 6699 Views
This document describes the OSPFv2 feature that allows the setting of “Down” (DN) bit in type-5 and type-7 LSAs. The DN Bit is a loop prevention mechanism implemented when OSPF is used as CE - PE IGP protocol. Its usage in OSPF is explained by RFC4576. By default, OSPF honors the DN-bit in type-3, type-5 or type-7 LSAs in non-default VRFs.