• Tag : Wi-Fi


How to Collect Arista AP/Sensor Debug Logs

Introduction This document provides the steps to fetch debug logs from Arista devices. These logs are required by the Arista Wi-Fi TAC team at the time of troubleshooting.You can download and save a debug log for future reference. The debug logs are available in .tgz format. There are multiple methods to fetch AP/Sensor debug logs: Via the UI of CloudVision Wi-Fi (CVW) or Wireless Manager (WM). This requires the AP/Sensor and WM to be on software version 7.3 or above. Via the config CLI of the Arista AP/Sensor. Prerequisites Access to CVW/WM UI, if the logs are to be obtained...
Continue reading →

How to Configure an SSID on Arista APs using Wireless Manager

Introduction This document focuses on the basic prerequisites and minimum configuration required for configuring an Arista device as an AP.  Prerequisites Administrative access to the Wireless Manager UI. Access Point should be connected to the network and also active on the Wireless Manger. If you do not see the Access Point active on the server, please refer to Troubleshoot AP Server connectivity. Solution The Arista AP does not have a UI of its own, so it must be configured via Wireless Manager. There are two aspects that control the configuration of an AP via Wireless Manager.   SSID Profile Device...
Continue reading →

Troubleshooting RADIUS Authentication/Authorization Issues

Introduction Arista Access Points offer several authentication methods for client connectivity, including the use of external authentication servers to support WPA2-Enterprise. This article outlines Dashboard configuration to use a RADIUS server for WPA2-Enterprise authentication, RADIUS server requirements and basic troubleshooting of RADIUS authentication. Prerequisites All Arista APs must be added as RADIUS clients on the RADIUS server. It is recommended that a static IP assignment or a DHCP fixed IP assignment should be used on the APs. Corresponding user authentication policies must be in place on the RADIUS server. Feature Description WPA2-Enterprise with 802.1x authentication can be used to authenticate...
Continue reading →

Dynamic VLAN Support Using RADIUS and Google Integration

Introduction Dynamic VLAN assignment helps you to quickly on-board a new device by allowing it to connect to a single SSID irrespective of the VLAN it has access to. Users can get access to their respective VLANs by connecting to a single corporate SSID. With dynamic VLAN assignment RADIUS server maps these users to their respective VLANs at the back end. The APs need to be connected to a trunk port that carries all the VLANs. There are two methods to assign Dynamic VLANs: RADIUS Google OU Solution RADIUS Based Assignment To achieve this, the following tasks must be performed:...
Continue reading →

SSID HTTP Redirection via ISE

Hi, We are trying to setup Guest and BYOD SSID with HTTP Redirection to Cisco ISE, but im having difficulty getting the HTTP redirection to work, any advise will be appreciated. FYI, i’ve gone thru the ISE Integration and Role Profile documentation. Thanks

How to Troubleshoot Low Throughput Issues on a Wireless Network

Introduction Data Rate is not the same as the actual Throughput achieved for a wireless network. The term Data Rate usually specifies the theoretical bit transfer rate of a particular implementation of Radio Frequency (RF) transmission. Whereas, Throughput is the actual amount of data per second that can be pushed across the link. Some spreading technologies are more effective than others, so the throughput will vary. 802.11 RF medium is a shared medium, meaning that in any discussion about throughput, it should be thought of as aggregate throughput. For example, if the data rate is 54 Mbps, because of CSMA/CA...
Continue reading →

How to Enable Automatic Packet Capture

Introduction CloudVision Wi-Fi can automatically capture packet traces when an AP detects a connectivity failure. The captured packet traces can be accessed and downloaded from the CloudVision Wi-Fi GUI under Connection Logs. Use case This feature is useful for troubleshooting random client connectivity issues that last for a short duration and hence make it difficult for the administrator to capture the trace. For example incorrect password, DHCP and DNS issues Prerequisites Administrator or higher access to CloudVision Wi-Fi/Wireless Manager. Solution On CloudVision Wi-Fi, navigate to Troubleshoot > Packet trace > Auto Packet Trace Click on Auto Packet Trace and select...
Continue reading →

How to Enable Application Firewall on Arista Access Points

Introduction Arista Access Points include an Application Firewall feature, which allows you to define firewall rules at application level/Layer 7. This feature can be useful in corporate environments where the requirement is to either allow or block certain applications. The applications that the Arista APs are able to recognize can be broadly classified into the following categories. Messaging Proxy File Transfer Networking Web Services Remote Access VPN and Tunneling Database Network Monitoring Collaboration Games Streaming Media Streaming Media- Messaging Mail Social Networking Prerequisites Administrative access to CloudVision Wi-Fi (CVW) / Wireless Manager (WM). Application Visibility should be enabled on the...
Continue reading →

How to Configure Alerts in CloudVision Wi-Fi

Introduction This article will give you a brief idea about configuring Alerts in CloudVision Wi-Fi. An alert provides a means to notify network admins of network events that need their attention. Alerts can be configured at individual locations in the hierarchy. If an alert is configured at the parent location, the same alert configuration will be inherited by the child location unless the administrator creates a different alert configuration at the child location. Prerequisites Administrator access to CloudVision Wi-Fi CloudVision Wi-Fi should be on version 2.3 or higher. Solution A network admin should be able to configure the following alerts...
Continue reading →

How to Install CloudVision Wi-Fi plugin for On-Premises Wireless Manager

Introduction CloudVision Wi-Fi is extremely useful in troubleshooting Wi-Fi client connectivity or network related issues. It is available as a service to Arista Cognitive Wi-Fi Cloud customers, and can also be configured as a plugin for Wireless Manager in an On-Premises environment. Prerequisites Wireless Manager (WM) must be upgraded to version 8.5.1 or above Administrator must download CloudVision Wi-Fi (CVW) plugin file from the Wi-Fi Customer Portal. Release Notes will include information on WM and CVW compatibility. CVW plugin bundle must be hosted at a location from where it can be downloaded on WM, using one of HTTP, FTP, SFTP...
Continue reading →

Troubleshooting On-premises CloudVision Wi-Fi

Introduction CloudVision Wi-Fi service was originally available only as a service on the Arista Cognitive Wi-Fi Cloud. From Wireless Manager version 8.5.1, an administrator can now install CloudVision Wi-Fi for an on-premise Wireless Manager server. This document lists the steps to troubleshoot issues with the CloudVision Wi-Fi plugin. Use Case This article is useful to troubleshoot scenarios where the hyperlink to launch CloudVision Wi-Fi from Wireless Manager is not displayed. Prerequisites Wireless Manager (WM) must be running software version 8.5.1 or higher The administrator will have to download and install the CloudVision Wi-Fi (CVW) plugin. Solution Setup Follow the steps...
Continue reading →

TCP/UDP Ports used by Arista Wi-Fi Products

Introduction This article explains the network ports, and the purpose for each, that need to be allowed in an environment where Arista Wi-Fi products are deployment. A network port is a process-specific or an application-specific software construct serving as a communication endpoint, which is used by the Transport Layer protocols of Internet Protocol suite, such as User Diagram Protocol (UDP) and Transmission Control Protocol (TCP). Solution TCP Ports: Port From To Purpose TCP 21 End Users / NOC, WM WM, End Users File upload/download. e.g. db backup. TCP 22 End Users / NOC, WM AP, WM Remote CLI access over...
Continue reading →

Troubleshooting Wi-Fi Throughput Issues with iPerf3 on Arista APs

Introduction When we observe low throughput in the network it is important to understand whether the issue lies on the Wi-Fi or the wired side of the network. The method to achieve this is to perform an iPerf test and compare results. This utility is present on the Arista AP which acts as an iPerf server, eliminating the need for a second client connected to the Wi-Fi network. Online speed tests are good for quick results; however, they are not ideal for troubleshooting as these speed tests are also dependent on factors outside the LAN/WLAN. Prerequisites config shell CLI access...
Continue reading →

How Frequently is Data Updated on CloudVision Wi-Fi?

Introduction The article lists the different modules and frequency at which CloudVision Wi-Fi updates its UI by fetching data from Wireless Manager. Solution The Wireless Manager collects all data and stores it in its database. CloudVision Wi-Fi polls this data from the Wireless Manager database periodically and presents it using an internal webserver. There are different counters and charts across different modules on CloudVision Wi-Fi which have their own polling intervals, default duration filter and granularity for which data is being shown. Modules Counters or Charts Default Filter Duration Granularity Polling Interval All Pages AP counters Current 2 minutes Clients...
Continue reading →

CloudVision Wi-Fi and APIs

Introduction The article describes a few examples of how CloudVision Wi-Fi uses APIs to interface with Wireless Manager. Prerequisites Administrator or higher access to the Wireless Manager and API Keys Solution CloudVision Wi-Fi (CVW) does not store any Wi-Fi data or configuration. Instead, the Wireless Manager (WM) server collects all the data and stores it in its database. CVW polls the WM database periodically and represents it on its own UI using an internal web server. So, how does CVW fetch this data from the WM database? API  Samples Below are few  examples of the APIs that CVW uses to...
Continue reading →

How to Work with Groups on CloudVision Wi-Fi

Introduction Groups provide a network administrator the flexibility to apply custom configurations to APs across locations in CloudVision Wi-Fi, regardless of the default templates configured at those individual locations. In this article we will walk through some common operations using Groups. Prerequisites Superuser or Administrator access to CloudVision Wi-Fi (CVW). CloudVision Wi-Fi version 2.4 or higher. Wireless Manager (WM) version 8.7 or higher. Solution Creating Groups A Group can be created in any of the following ways in CVW: Navigate to System > Navigator > Folder > Right click on a folder > Add Group Note: Groups cannot be created...
Continue reading →

Live Client Debugging on CloudVision Wi-Fi

Introduction This article is step-by-step guide to collect client connectivity logs via CloudVision Wi-Fi, using Live Client Debugging. This feature is similar to the Connection Logs on Wireless Manager. Live Client Debugging is useful to isolate the reason for Wi-Fi client connectivity problems in real-time. These logs show the exchange between AP and the client and can capture issues with authentication, authorization, IP address assignment, etc. Prerequisites Administrative access to CloudVision Wi-Fi. 802.11ac AP platform must be connected and active at the location where debugging will be performed. Solution Access CloudVision Wi-Fi from the Launchpad and navigate to Monitor >...
Continue reading →

How to Assign a Static IP to an Arista AP via CloudVision Wi-Fi

Introduction This article explains how to setup Static IP address on Arista APs via CloudVision Wi-Fi. Prerequisites Administrator access to CloudVision Wi-Fi (CVW) / Wireless Manager (WM). The AP must show Active status on CVW. Solution Static IP address can be assigned to any Arista AP using the “Additional VLAN Monitoring” option. To enable this, navigate to Monitoring > Wi-Fi > Access Points Right-click the AP to which you want to assign Static IP address and select Customize > Additional VLAN Monitoring. In the right hand side panel, select Add VLANs to Monitor, enter the VLAN ID and click Add....
Continue reading →

How to Integrate Cisco Wireless LAN Controller with CloudVision Wi-Fi

Introduction This article describes the steps to integrate Cisco Wireless LAN Controller with CloudVision Wi-Fi. Wireless LAN Controllers (WLC) govern a collection of Lightweight Access Points (APs). Light Weight Access Point Protocol (LWAPP) defines the network protocol between the APs and WLC. The Cisco Unified WLAN architecture consists of WLC and APs. At any time, the WLC has all the information about the APs and devices seen or associated with these APs. Integration with Cisco WLC allows the system to fetch this information from WLC. Using this information the system can automatically classify devices managed by WLC and do location...
Continue reading →


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

Join other followers: