- Written by Jifei Song
- Posted on August 16, 2018
- Updated on September 4, 2018
- 2379 Views
Ahost is a generic Fedora based Linux OS primarily for the purposes of hosting cEOS. It has a 64 bit kernel (EosKernel)
- Written by Kelsey Skemp
- Posted on September 5, 2018
- Updated on September 24, 2018
- 2231 Views
ASU allows a user to upgrade the switch to a newer software release with minimal downtime (no traffic loss). In some
- Written by Pranav Choudhary
- Posted on September 4, 2018
- Updated on December 27, 2022
- 3602 Views
BGP Conditional route inject provides the capability to control BGP advertisements based on certain conditions in
- Written by Abhiram Kalluru
- Posted on August 17, 2018
- Updated on October 2, 2018
- 2495 Views
Prior to this release, BGP in “ribd” mode (when routing protocols are configured in
- Written by Shyam Kota
- Posted on August 17, 2018
- Updated on October 12, 2018
- 2261 Views
DCS 7280SRM 40CX2 (see picture below), is a 1RU fixed system, which has two CFP2 ports (41 and 42), capable of hosting
- Written by Shyam Kota
- Posted on August 16, 2018
- Updated on October 1, 2018
- 2167 Views
The show interfaces capabilities default command provides static interface capability information. This
- Written by Nathanael Dattappa
- Posted on August 17, 2018
- Updated on February 6, 2022
- 2252 Views
Coherent signaling technology is used for data transmission over long distances. These transmitted signals are
- Written by Robert Spark
- Posted on September 5, 2018
- Updated on October 6, 2018
- 2537 Views
Note:. EOS 4.21.0F and subsequent releases may require manual updates to frequency or channel and grid spacing in
- Written by Ronish Kalia
- Posted on July 21, 2018
- Updated on August 17, 2018
- 2105 Views
Headroom buffers are used to store packets when ingress admission control checks fail to store them in both the
- Written by Xujia Cao
- Posted on August 16, 2018
- Updated on May 4, 2020
- 2553 Views
DHCP relay agent uses one of the addresses configured on the interface as the source IP when relaying messages to the
- Written by Xujia Cao
- Posted on August 17, 2018
- Updated on October 1, 2018
- 2266 Views
This feature allows Dhcpv6 relay agent to add Client link layer address option (specified in RFC 6939) to solicit and
- Written by Jeevan Kamisetty
- Posted on August 16, 2018
- Updated on November 2, 2021
- 2254 Views
DHCPv6 relay supports Remote ID option (37) insertion in relay messages providing the Layer 3 interface name on which
- Written by Shyam Kota
- Posted on August 16, 2018
- Updated on August 25, 2022
- 2958 Views
The feature allows to create a named TC to DSCP mapping that can be applied on an interface.DSCP of routed packets egressing out of the interface will be rewritten according to the map.
- Written by Deepak Sebastian
- Posted on August 17, 2018
- Updated on February 6, 2022
- 2596 Views
Network operators have to monitor all kinds of information on the health of their networking equipment like
- Written by Zhuohui Tan
- Posted on December 22, 2017
- Updated on October 8, 2018
- 2759 Views
Hierarchical Forwarding Equivalence Class (HFEC) changes a FEC from a single flat level to a multi level FEC
- Written by Richard Goh
- Posted on August 16, 2018
- Updated on December 30, 2021
- 2831 Views
IPv6 multicast routing protocols are used to distribute IPv6 datagrams to one or more recipients. IPv6 PIM builds and
- Written by Shyam Kota
- Posted on October 8, 2018
- Updated on June 12, 2019
- 2465 Views
This feature adds support for PIM SSM (Source Specific Multicast) for IPv6 Multicast Routing on platforms listed
- Written by Arnab Das
- Posted on August 16, 2018
- Updated on October 2, 2018
- 2118 Views
The 'clear isis neighbor' command can be used to delete and possibly re establish IS IS adjacencies on a box. Issuing
- Written by Romi Kumar
- Posted on August 16, 2018
- Updated on February 6, 2022
- 2315 Views
This feature allows user to configure adjacency SID of global scope for IS IS adjacencies. It is an extension to IS IS
- Written by Prakrati Vidyarthi
- Posted on August 16, 2018
- Updated on January 9, 2023
- 5486 Views
Normally, a switch traps L2 protocol frames to the CPU. However, certain use-cases may require these frames to be forwarded.
- Written by Dawon Lee
- Posted on August 17, 2018
- Updated on April 20, 2020
- 3019 Views
Lanz Mirroring feature allows users to automatically mirror traffic queued as a result of congestion to either CPU or
- Written by Zackary Ayoun
- Posted on September 5, 2019
- Updated on September 5, 2019
- 2339 Views
This document describes the latest status of LANZ on DCS 7500R, DCS 7280R and DCS 7020R, for both polling and notifying
- Written by Gustavo Lau
- Posted on September 5, 2018
- Updated on October 3, 2018
- 2199 Views
A MACsec port with this feature enabled transmits LLDP frames without MACSec encryption and receives LLDP frames
- Written by Wade Carpenter
- Posted on August 16, 2018
- Updated on June 14, 2019
- 2693 Views
IP traceroute and path MTU (PMTU) discovery both require that routers send ICMP reply messages to the host that
- Written by Swati Patel
- Posted on August 16, 2018
- Updated on October 11, 2018
- 2538 Views
The MLD protocol is the IPv6 equivalent of IGMP for IPv4. Multicast routers use MLD to find out about multicast
- Written by VIshnu Vardhan K
- Posted on August 16, 2018
- Updated on October 8, 2018
- 2548 Views
This feature provides per multicast route ingress packet and byte counters for multicast routed packets.
- Written by Syed Rahi
- Posted on December 3, 2018
- Updated on February 5, 2022
- 2174 Views
This article describes the configuration to match on Ipv4 packets based on packet length in Access control
- Written by Goji Miyao
- Posted on August 16, 2018
- Updated on September 24, 2018
- 2076 Views
DCS 7160. Host table partitioning provides the ability to change the allocation of MAC and host route tables on a
- Written by Neeraj Joseph
- Posted on April 23, 2018
- Updated on October 14, 2021
- 2740 Views
The PHY test pattern CLI can be used to check the quality of the physical layer for an Ethernet interface. This is done by
- Written by Corey Hines
- Posted on August 17, 2018
- Updated on October 12, 2018
- 2522 Views
Priority Flow Control is a link layer flow control mechanism which may be used by an overwhelmed network node to ask its
- Written by Shyam Kota
- Posted on August 16, 2018
- Updated on October 1, 2018
- 2569 Views
This feature allows users to view most recent history of offset from master, mean path delay and skew values via CLI
- Written by Bharadwaj Gosukonda
- Posted on September 4, 2018
- Updated on September 30, 2020
- 4054 Views
QinQ L3 subinterfaces divide a single ethernet or port channel interface into multiple logical L3 interfaces based
- Written by Navlok Mishra
- Posted on August 16, 2018
- Updated on June 19, 2019
- 3794 Views
This feature is an extension of Qos Policy. It allows the user to configure Qos Policy Map counters. If a class map is
- Written by Geoff Hanson
- Posted on August 16, 2018
- Updated on December 30, 2019
- 2549 Views
Starting in the EOS 4.21.0F release, reload console logs are available to help in debugging of unexpected reloads.
- Written by Trevor Mendez
- Posted on August 16, 2018
- Updated on April 6, 2021
- 2976 Views
RIB Route Control is a collection of mechanisms for controlling how IP routing table entries get used. FIB Policy
- Written by Manoharan Sundaramoorthy
- Posted on September 4, 2018
- Updated on February 5, 2022
- 6271 Views
Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend
- Written by Sonu Giri
- Posted on August 17, 2018
- Updated on October 5, 2018
- 2116 Views
The Segment security feature provides the convenience of applying policies on segments rather than interfaces or
- Written by ANURAG MURUGESAN
- Posted on August 16, 2018
- Updated on October 2, 2018
- 2438 Views
The feature allows modification of the egress TTL of packets routed via PBR. It allows to modify the TTL of naked
- Written by Michael Sparacio
- Posted on August 16, 2018
- Updated on June 20, 2019
- 2801 Views
These are the release notes and configuration guide for the OpenConfig feature in the 4.21.0F release.
- Written by Han Li
- Posted on May 17, 2018
- Updated on January 28, 2022
- 3314 Views
This feature enables the user to configure PBR policy on an interface in any VRF, to match and forward incoming packets
- Written by Ritika Adlakha
- Posted on August 16, 2018
- Updated on October 8, 2018
- 2113 Views
This article describes how QoS attributes are handled on tap ports as of EOS 4.20.5F. Prior to EOS 4.20.5F, QoS
- Written by Sneha Janardhan Nayak
- Posted on August 16, 2018
- Updated on September 24, 2018
- 2240 Views
As of EOS 4.21.0F, CLI commands can specify different TCAM profiles for different linecards in Tap Aggregation mixed
- Written by Robert Cartelli
- Posted on August 16, 2018
- Updated on June 28, 2021
- 2705 Views
While in Tap Aggregation mode, we support traffic only in one direction through either Tap ports receiving packets
- Written by Andrey Nushtaev
- Posted on August 16, 2018
- Updated on October 5, 2018
- 2193 Views
This feature enables user to configure the list of bytes from the packet which can be used for Lag/Ecmp hashing in the
- Written by Sindhuja Sampath
- Posted on August 17, 2018
- Updated on March 2, 2021
- 2875 Views
Unicast Reverse Path Forwarding (uRPF) can help limit malicious traffic on a network. uRPF works by enabling the
- Written by Sneha Janardhan Nayak
- Posted on August 16, 2018
- Updated on October 3, 2018
- 2147 Views
This feature is available in the VLAN configuration mode. When a switch receives a packet with unknown