- Written by Jifei Song
- Posted on August 16, 2018
- Updated on September 4, 2018
- 3557 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
- 3506 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
- 5181 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
- 3642 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
- 3185 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
- 3089 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
- 3290 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
- 3785 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
- 3098 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
- 3840 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
- 3422 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
- 3534 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
- 4389 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 Alton Lo
- Posted on September 26, 2023
- Updated on September 26, 2023
- 823 Views
EVPN route advertisements carry RD and RT. RD (Route Distinguisher) : prepend to the tenant’s IP Prefix or MAC address to make it globally unique. RT (Route Target) : a BGP extended community used to tag the EVPN route. The EVPN import policy is chosen to select what is the target tenant VRF is imported from the global EVPN table.
- Written by Deepak Sebastian
- Posted on August 17, 2018
- Updated on February 6, 2022
- 3684 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
- 4249 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
- 4251 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
- 3946 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
- 3134 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
- 3450 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 September 8, 2023
- 8873 Views
Normally, a switch traps L2 protocol frames to the CPU. However, certain use-cases may require these frames to be forwarded or dropped. And in cases where the L2 protocol frames are forwarded (eg: Pseudowire), we may require the frames to be trapped to the CPU or dropped.
- Written by Dawon Lee
- Posted on August 17, 2018
- Updated on April 20, 2020
- 4497 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
- 3754 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
- 3443 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 August 1, 2023
- 4270 Views
IP traceroute and path MTU (PMTU) discovery both require that routers send ICMP reply messages to the host that invokes each network function. When the route to the destination host traverses an MPLS label-switched path (LSP), the label switching routers (LSRs) will also need to send ICMP reply messages to the originating host.
- Written by Swati Patel
- Posted on August 16, 2018
- Updated on October 11, 2018
- 3648 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
- 3743 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
- 3165 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
- 3081 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
- 4059 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
- 3975 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
- 3723 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
- 5625 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
- 5577 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
- 3619 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
- 4324 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
- 8720 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
- 3175 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
- 3571 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
- 4205 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
- 4433 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
- 3229 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
- 3379 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
- 3927 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
- 3204 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
- 4045 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
- 3179 Views
This feature is available in the VLAN configuration mode. When a switch receives a packet with unknown