• Author : Andrei Dvornic


Transfer of Information (TOI)

EOS Release TOIs 4.25 EOS-4.25.0F 4.24 EOS-4.24.2F EOS-4.24.1F EOS-4.24.0F 4.23 EOS-4.23.2F EOS-4.23.1F EOS-4.23.0F 4.22 EOS-4.22.2F EOS-4.22.1F EOS-4.22.0F 4.21 EOS-4.21.6F EOS-4.21.5F EOS-4.21.3F EOS-4.21.1F EOS-4.21.0F 4.20 EOS-4.20.6F EOS-4.20.5F EOS-4.20.1F 4.18 EOS-4.18.2F EOS-4.18.1F EOS-4.18.0F 4.17 EOS-4.17.2F EOS-4.17.1F EOS-4.17.0F 4.15 EOS-4.15.4F EOS-4.15.3F EOS-4.15.2F EOS-4.15.0F CVP Release TOIs 2020.2.0 CVP-2020.2.0 2020.1.0 CVP-2020.1.0 2019.1.0 CVP-2019.1.0 2018.2.3 CVP-2018.2.3 2018.2.1 CVP-2018.2.1 2018.2.0 CVP-2020.1.0 CVP-2018.2.0 2018.1.0 CVP-2018.1.0 2017.2.0 CVP-2017.2.0 2017.1.0 CVP-2017.1.0 CloudVision WiFi Release TOIs 8.9 WiFi 8.9 8.8.2 WiFi 8.8.2 8.8.1 WiFi 8.8.1 8.8 WiFi 8.8 For older releases, please see the Software Downloads page on www.arista.com.

Layer 2 loop protection

Overview In our current implementation, STP is disabled if backup interfaces are used. Loop-protection(LP) agent can run alongside or separate from the STP agent. This will have a method to detect loops and take action based on the configuration by the user. In order to find loops in the system, a loop detection frame will be sent out periodically on each interface that LP is enabled on. The frame will carry broadcast destination MAC address and OUI Extended EtherType 0x88b7 as well as information to specify the origins of the packet. When the switch receives a loop detection frame that’s...
Continue reading →

Arista EOS-4.15.0F transfer of information

Arista 7500E/7280E Specific Features Fair VOQ credit allocation Egress IPv4/IPv6 ACLs for IPoMPLS packets after MPLS pop RACL divergence IPv6 egress RACL sharing Egress ACL logging MLAG peer MAC routing Static multicast MACs Nexthop selection using GRE-key ACL based policing Fabric link monitoring L3 subinterfaces Load balancing over LAG in tap aggregation tool groups with multiple members Dynamic and symmetric load-balancing for LAG Audio Video Bridging (AVB) IPv4 route scale Ingress replication to LAGs sFlow output interface VXLAN Control Service PBR/ACL counter selection VLAN mapping Arista 7250X/7300X Specific Features Static ARP inspection IP-in-IP decapsulation Storm control in PPS Configurable L2 MTU L3...
Continue reading →

Content template

This is a paragraph – it should use the default Paragraph style and be left indented (default). And this is a list – just use the standard formatting: item1 – start with lower case, do not end in ‘.’ item2. If multiple sentences are on the same line, do separate them by ‘.’, but do not end the last one with ‘.’ item3 Same for a numbered list: item1 item2 item2 TODO: what is this feature?? what does it do? what are the use cases? when was the feature introduced? Configuration This is another paragraph. Do NOT use more than...
Continue reading →

ZTPServer v1.3

ZTPServer version 1.3 adds a couple of new features and enhancements to which are primarily focused on new actions, improved testing and documentation, and the addition of handlers for startup-config PUT requests. For details, please see http://ztpserver.readthedocs.org/en/master/support.html#releases. ZTPServer version 1.3.1 adds some additional bug fixes and it is the recommended release for all customers.

ZTPServer v1.1.0

ZTPServer 1.1.0 is a significant update for ZTPServer and all users are strongly encouraged to update. This release is primarily focused on resiliency, improved testing, and closing early requests from several deployments. Important: The default system identifier has changed in this release from System MAC Address to Serial Number. This can be reverted to the old behavior in /etc/ztpserver/ztpserver.conf, to allow existing configurations to be used. Documentation: http://ztpserver.readthedocs.org/en/v1.1.0/ Release Notes: http://ztpserver.readthedocs.org/en/v1.1.0/ReleaseNotes1.1.html License: http://ztpserver.readthedocs.org/en/v1.1.0/license.html Support: http://ztpserver.readthedocs.org/en/v1.1.0/support.html

Arista Networks OMI Integration with Microsoft

Arista’s support of OMI (Open Management Interface), coupled with Microsoft System Center Virtual Machine Manager (SCVMM) and PowerShell, allows customers to monitor and manage their network more effectively. Read all about it here.

Collecting logs for Arista TAC cases using logGrab

logGrab is a simple bash script that builds a time/date stamped archive containing a number of log items commonly requested when raising a TAC case. It is designed to simplify the process of collecting data from multiple sources within EOS and packing them into a single file for easy upload. The script can be easily extended/adapted and may be integrated easily with other EOS features such as the CLI scheduler and Advanced Event Manager. #!/bin/bash # logGrab - Automatic Log Collector v0.3 LOGNAME=logGrab-$HOSTNAME-$(date +%Y-%m-%d.%H%M%S) mkdir /mnt/flash/$LOGNAME cd /mnt/flash/$LOGNAME ls -alR /persist/sys > persist-sys-contents ls -alR /mnt/flash > flash-contents ls -alR...
Continue reading →

EOS ecosystem partner: SAP

See what SAP’s Global Managing Board Member Vishal Sikka has to say about the partnership between SAP and Arista:

EOS extensions on GitHub

A collection of scripts and examples on how to extend EOS using Python can be found in the following repository on GitHub: https://github.com/arista-eosext/

How to generate syslog messages using Python

Arista EOS extensions can be easily configured to generate syslog messages. This documents provides an overview of the APIs which can be used in order to achieve that and shows a few examples. The examples presented in the following sections were tested against EOS-4.12.0. Basic example #!/usr/bin/env python # Copyright (c) 2013 Arista Networks, Inc. All rights reserved. # Arista Networks, Inc. Confidential and Proprietary. import syslog syslog.openlog( 'myTestLog', 0, syslog.LOG_LOCAL4 ) syslog.syslog( '%%TEST-6-LOG: Log msg: %s' % 'test msg' ) Result Apr 17 07:15:40 <hostname> myTestLog: %TEST-6-LOG: Log msg: test msg See the official Python documentation for more details.


Get every new post on this blog delivered to your Inbox.

Join other followers: