- Written by Tony Truong
- Posted on March 14, 2024
- Updated on March 14, 2024
- 3148 Views
The 7280CR3-36S series include the ability to toggle ports Ethernet33-36 between pairs of 200G QSFP56 ports and a single 400G QSFP-DD port on the odd Ethernet port, disabling the corresponding even Ethernet port. The supported speed capabilities of QSFP-DD ports vary depending on which hardware port group is selected. This document details how to configure the hardware port groups on QSFP-DD ports.
- Written by Nandan Saha
- Posted on August 24, 2020
- Updated on May 22, 2024
- 11490 Views
The BGP-LS extension allows IGPs (OSPF/IS-IS) link state database information to be injected into BGP. This is typically used in deployments where some external component, (like a controller or Path Computation Engine) can do centralized path computations by learning the entire IGP topology through BGP-LS. The controller can then communicate the computed paths based on the BGP-LS updates to the head end device in the network. The mechanism used by the controller to communicate the computed TE paths is outside the scope of this document. Using BGP-LS instead of an IGP peering with the controller to distribute IGP link state information has the following advantages.
- Written by Manoj Agiwal
- Posted on September 30, 2015
- Updated on July 12, 2024
- 17676 Views
BGP Non Stop Forwarding (NSF) aims to minimize the traffic loss when the the following scenarios occur:
- Written by Kenneth Cheung
- Posted on June 15, 2021
- Updated on June 15, 2021
- 6493 Views
EOS 4.26.1F release added a platform configuration command to modify the dynamic MAC learning limit threshold on
- Written by Alton Lo
- Posted on March 18, 2020
- Updated on April 4, 2024
- 18167 Views
In the Centralized Anycast Gateway configuration, the Spines are configured with EVPN IRB and are used as the IP
- Written by Prajul Sreedharan
- Posted on January 22, 2019
- Updated on November 7, 2024
- 8637 Views
This feature introduces the support for IPv4 ACL configuration under GRE and IPsec tunnel interfaces and IPv6 ACL configuration under GRE tunnel interfaces. The configured ACL rules are applied to a tunnel terminated GRE packet i.e. any IPv4/v6-over-GRE-over-IPv4 that is decapsulated by the GRE tunnel-interface on which the ACL is applied, or a packet terminated on IPsec tunnel i.e, IPv4-over-ESP-over-encrypted-IPv4 packet that is decapsulated and decrypted by the IPsec tunnel interface on which the ACL is applied.
- Written by Padmanabh Ratnakar
- Posted on October 7, 2021
- Updated on October 14, 2024
- 12571 Views
For network monitoring and troubleshooting flow related issues, it is desirable to know the path, latency, queue and congestion information for flows at different times. The inband telemetry feature(INT), based on Inband Flow Analyzer RFC draft -IFA 2.0 and IFA 1.0(on some platforms) , is used to gather per flow telemetry information like path, per hop latency and congestion. INT is supported for both IPv4 and IPv6 traffic.
- Written by Yongxiang Chen
- Posted on June 21, 2021
- Updated on July 31, 2024
- 6367 Views
This feature enables IPv6 neighbor discovery (ND) proxies for IPv6 subnets on routed ports, L3 subinterfaces, and VLAN interfaces. IPv6 ND Proxy on VLAN interfaces support requires additional TCAM profile configuration. When enabling IPv6 ND proxy, all IPv6 ND Neighbor Solicitation (NS) packets will be trapped to the control plane instead of being forwarded. In response, IPv6 ND Neighbor Advertisement (NA) packets with the corresponding interface router MACs will be sent back.
- Written by Tarun Jaswanth LNU
- Posted on June 14, 2021
- Updated on August 12, 2024
- 8620 Views
Media Access Control Security (MACsec) is an industry standard encryption mechanism that protects all traffic
- Written by Kushagra Mohan
- Posted on March 18, 2020
- Updated on July 19, 2024
- 8420 Views
This feature enables per port TC-To-COS mapping, where TC represents Traffic-Class and COS represents Vlan tag PCP bits. While at present there is a global TC-To-COS mapping, we can use the TC-To-COS feature to create custom profiles which can be applied to the required interfaces.
- Written by Tom Meng
- Posted on June 21, 2021
- Updated on January 25, 2024
- 8070 Views
Power over Ethernet (PoE) is a way of delivering power and data over the same Ethernet wires. There have been multiple IEEE standards for PoE over the years:
- Written by Rohit Maurya
- Posted on June 21, 2021
- Updated on July 13, 2022
- 13811 Views
Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP
- Written by Robert Spark
- Posted on June 21, 2021
- Updated on September 8, 2023
- 7673 Views
This feature adds support for viewing the Digital Optical Monitoring (DOM) parameters for the optics that support enhanced diagnostics from the CLI. The show commands described later in this document can be used to view the instantaneous values for various modulation parameters like Signal-To-Noise Ratio, Residual Inter Symbol Interference, PAM4 Level Transition Parameters, etc. that such optics support.