- Written by Jifei Song
- Posted on August 16, 2018
- Updated on September 4, 2018
- 7093 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
- 6730 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
- 8671 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
- 7061 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
- 6378 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
- 6284 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
- 6536 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
- 7419 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
- 6332 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
- 7253 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
- 6739 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
- 6909 Views
DHCPv6 relay supports Remote ID option (37) insertion in relay messages providing the Layer 3 interface name on which
- Written by Kulwinder Singh
- Posted on August 16, 2018
- Updated on September 12, 2024
- 8229 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
- 4559 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
- 7105 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
- 7857 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
- 8034 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
- 7804 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
- 6349 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
- 6798 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 November 5, 2024
- 15462 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. The L2 Protocol Forwarding feature provides a mechanism to control the behavior of L2 protocol frames received on a port or subinterface.
- Written by Dawon Lee
- Posted on August 17, 2018
- Updated on July 5, 2024
- 8642 Views
Lanz Mirroring feature allows users to automatically mirror traffic queued as a result of congestion to either CPU or a different interface.
- Written by Zackary Ayoun
- Posted on September 5, 2019
- Updated on September 5, 2019
- 7391 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
- 7516 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 May 22, 2024
- 8037 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
- 7031 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
- 7294 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
- 6367 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
- 6302 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 17, 2024
- 8226 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 November 19, 2024
- 8618 Views
Priority Flow Control is a link-layer flow control mechanism which may be used by an overwhelmed network node to ask its transmitters to stop transmission for a specified period of time. It does so by using special frames known as PFC frames, thus, relieving congestion at the receiver node. With respect to this behavior, PFC is very similar to Link Layer Flow Control ( LLFC ), however, unlike LLFC, PFC allows the overwhelmed node to specify which 802.1Q Class of Service ( CoS ) it wants to stop receiving traffic for. Thus, allowing differentiated treatment of traffic based on CoS.
- Written by Shyam Kota
- Posted on August 16, 2018
- Updated on October 1, 2018
- 7201 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
- 9749 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
- 9736 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
- 6934 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
- 8101 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
- 13415 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
- 6470 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
- 7038 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
- 7873 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
- 8208 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
- 6440 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
- 6579 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
- 7318 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
- 6502 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
- 7613 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
- 6393 Views
This feature is available in the VLAN configuration mode. When a switch receives a packet with unknown