Extreme Management Center Version 8.2 Release Notes

Extreme Management Center
8.2.4 .42
February, 2019

A PDF copy of these release notes can be found here.

Extreme Networks Extreme Management Center® provides a 360 degree view of your network, users, devices, and applications by providing integrated management, analytics, and policy. It allows you to view your network through a single pane of glass to manage your network from the wired and wireless edge to the data center. Extreme Management Center gives granular insights, visibility, and automated control across your networks.

With Extreme Management Center, you can distingush network from application performance and correlate with user and device activities to troubleshoot issues fast. Actionable insights from the network let you make real-time decisions on policies, devices, applications, and people. This way, the implementation of new technologies, such as IoT, can be automated and securely executed.

A better way to manage your complex network from the network edge to the data center

We integrated Extreme Management Center with our Smart OmniEdge solution and Automated Campus, so you can quickly deploy new digital technology, prevent cyber-attacks at every entry point, and do it all while delivering a consistent and personalized user experience.

High levels of virtualization, containerization, and cloud environments, combined with enormous traffic, limit visibility in the modern data center. In addition, most data centers face challenges adapting to rapid business changes and virtual environments. Most customers have also grown tired of vendor lock-in and want an open flexible environment. Here Extreme Management Center, part of our Agile Data Center Networking solution, provides a pragmatic path to automation based on multi-vendor architectures. It gives you the granular visibility and real-time analytics, to make data-based business decisions. Our SLX switches and routers are managed by Extreme Management Center through a single pane of glass, which reduces data center administration and offers you the full view of the network.

The Extreme Management Center Release Notes provide information on the new features and enhancements included in version 8.2, as well as issues fixed and configuration changes for this release.

  IMPORTANT: For upgrade and installation requirements as well as configuration considerations, please see Extreme Management Center Configuration and Requirements.

The most recent version of these release notes as well as the most recent firmware compatibility matrix can be found on the Extreme Networks Documentation site: https://www.extremenetworks.com/support/release-notes. Follow this path to the document: Management and Orchestration > Extreme Management Center > Release 8.2.

For information regarding the features supported by specific devices, see the Firmware Support Matrix. Version 8.2 of Extreme Management Center supports the devices listed in the matrix as well as additional devices not yet included.

Enhancements in Version 8.2

New features and enhancements are added to the following areas in Extreme Management Center version 8.2:

For additional information about each of the features listed in this guide, refer to the documentation posted online at ExtremeNetworks.com or the help system included with the software.


Enhancement to SNMPv3 Configuration on Extreme Networks Engines
During initial engine deployment, you can now configure the SNMPv3 authentication (MD5 or SHA) and privacy (DES or AES) protocol that was previously hard-coded on the Extreme Management Center, Application Analytics, and Access Control engines.

Extreme Management Center

Introducing Workflows
Workflows allow you to automate complex tasks with a single click. Workflows are modeled as flow charts and can be configured to perform one set of actions that take place if an action occurs successfully and another set of actions that take place if the action does not occur successfully. System-defined workflows are available for all users. With an NMS-ADV license, you can create your own workflows that can be scheduled, or run ad hoc.

The following system-defined workflows are available in this release (a change in version number between releases indicates a change to the workflow):
  • ICX-SLX Config Basic Support (version 106)
  • MLX Config Basic Support (version 122)
  • VDX Config Basic Support (version 74)
  • MLAG with VOSS Cluster (version 131)
  • VOSS Fabric NNI LAG (version 77)
  • VOSS Virtual IST (version 137)
  • Add Login Banner (version 76)
  • Enable HTTPS (version 53)
  • Enable SSH (version 52)
  • ICX-MLX Backup Configuration (version 101)
  • VDX Backup Configuration (version 33)
  • ICX-SLX-MLX Restart Device (version 15)
  • VDX Restart Device (version 21)
  • ICX-MLX Backup Configuration (version 72)
  • VDX Backup Configuration (version 64)
  • ICX Upgrade Firmware (version 37)
  • MLX Upgrade Firmware (version 47)
  • VDX Upgrade Firmware (version 59)
  • Collect Traffic Forensics (version 164)
  • Create Trouble Ticket (version 191)
  • Quarantine End System (version 154)
  • Quarantine PCAP Flow (version 363)
  • Revert Quarantine End System (version 174)

Ability to Hide Link Labels on Maps
The Show Interswitch Connection selection in the View menu of a map now includes a menu from which you can enable or disable map link labels.
Ability to Configure Local Change Alarm on ZTP+ Devices
Via the Alarm on Local Change option on the Options > ZTP+ tab, you can now configure Extreme Management Center to generate an alarm when you make a change to a ZTP+-enabled device via the CLI to prevent Extreme Management Center from automatically overwriting the change the next time Extreme Management Center polls the device via ZTP+.
NMS License Enhancements
The NMS-xx license now provides support for 250 end-systems for ExtremeControl and 25 Guest and IoT Manager licenses. NMS-ADV-xx continues to support 500 end-systems and now includes 50 Guest and IoT Manager licenses.
Introducing Fabric Manager
Extreme Management Center version 8.2 provides support for Fabric Manager functionality in Extreme Management Center. Fabric Manager is deployed as a separate virtual machine in Extreme Management Center. Fabric Manager allows you to monitor the fabric topology on your network for the following device types:
  • ERS35xx with firmware version 5.3.7 and later
  • ERS36xx with firmware version 6.2.0 and later
  • ERS48xx with firmware version 5.12.0 and later
  • ERS49xx with firmware version 7.6.0 and later
  • ERS59xx with firmware version 7.6.0 and later
  • VSP7024 with firmware version 10.4.6 and later
  • VSP4xxx with firmware version 6.1.3 and later
  • VSP7xxx with firmware version 6.1.3 and later
  • VSP8xxx with firmware version 6.1.3 and later
 NOTE:For minimum requirements, see Extreme Management Center Configuration and Requirements.

Extreme Management Center uses ZTP+ functionality to add Fabric Manager and is accessed via site to which you add it.

Extreme Management Center can also backup, restore, and upgrade the Fabric Manager virtual machine configuration within Extreme Management Center. To add Fabric Manager, upgrade Extreme Management Center to version 8.2.0 and follow the installation instructions.

Additionally, certificate management is updated and viewed in Extreme Management Center.

Ability to Provision Fabric Topologies in Extreme Management Center
With an NMS-ADV license, Extreme Management Center now allows you to provision Fabric Topologies on your fabric-enabled devices. A Fabric Topology and Service Definition are created in a configuration template. Via the Site tab, you can assign a site a Fabric Topology and Service Definition template. The Service Definition template allows you to create VRF, VLAN, L2, and L3 service mappings. The following device types are supported:
  • VSP4xxx with firmware version 6.1.3 and later
  • VSP7xxx with firmware version 6.1.3 and later
  • VSP8xxx with firmware version 6.1.3 and later
  •  NOTE:VSP7024 and VSP86xx devices are not supported.
Introducing the Multi Cloud Dashboard
The Multi Cloud dashboard provides an overview of all virtual machines on the network broken down into VM distribution. Additionally, the dashboard includes information about Amazon Web Service and Google Compute instances.
Ability to Export Rows You Select
Extreme Management Center now allows you to export only the rows you select in tables as a CSV file.
Added Support for Additional Device Types
Extreme Management Center now supports the MLX and VDX device types:
  • Extreme Management Center supports inventory functionality via the Workflows tab
  • General device support:
    • MLX — All firmware versions
    • VDX — Firmware version 7.1.0 and later
  • Additional VDX-only support includes:
    • Device Backup and Restore supported with firmware version 6.0.2 and later
    • Device Firmware Upgrade support:
      • Upgrade from firmware version 6.0.2 (Logical Chassis mode) and 7.0 to 7.1.0
      • Upgrade from firmware version 7.1.0 to later versions
  • Other device support supported with firmware version 7.1.0 and later
Added Link Resolution Support for Additional Devices in Topology Maps
Extreme Management Center topology maps now display links between additional device types, including:
  • ERS35xx
  • ERS36xx
  • ERS45xx
  • ERS48xx
  • ERS49xx
  • ERS59xx
  • ERS55xx
  • ERS56xx
  • ERS86xx
  • ERS88xx
  • VSP9xx
  • VSP7024

If one of these devices is at either end of a link, Extreme Management Center uses SONMP information to display the link in the map.


Introducing Guest and IOT Manager
Beginning in ExtremeControl version 8.2, a new set of User and Device provisioning is now available, called Guest and IoT Manager. The Guest & IoT Manager (GIM) is an application that integrates with ExtremeControl. Its purpose is to provide non-IT personnel with the ability to provision users and/or devices within constrains defined by the administrator. GIM communicates with an Access Control (ExtremeControl) engine(s) for provisioning of users and devices that later may access the network through standard process of authentication and authorization by ExtremeControl.

GIM allows the administrator to perform the following:
  • Create and customize Onboarding Templates for users and devices
  • Create Internal Provisioners
  • Assign one or more Onboarding Templates to Internal Provisioners or External Provisioners (Provisioners on AD/LDAP)
  • Enable and customize GIM REST APIs for integration with 3rd party applications
  • Enable and customize GIM Outlook Add-in

Furthermore, GIM allows the Provisioners to use the Onboarding Template(s) and provision users and/or devices based on their customized constrains.

Provisioners may be:
  • External Provisioners — For example, Employees or Students that reside on an AD or LDAP server.
  • Internal Provisioners — Provisioners created by the administrator and are, for example, Business Partners, Vendors, Suppliers, Contractors, Front Desk Security Guards etc.

The GIM administrator and the Provisioner use different login pages. When a Provisioner logs in, the Provisioner is authenticated by the ExtremeControl engine against AD/LDAP in the case of External Provisioner or against the Local Repository in the case of Internal Provisioner. Once the Provisioner logs in, then the Provisioner has access to the Onboarding Templates to which the administrator provides access and is able to provision users and/or devices.
Ability to Join Multiple Active Directory Domains
ExtremeControl now allows you to join multiple Active Directory domains. This new capability facilitates authenticating users that may reside on Active Directories that do not have trust between them.
Fall-Through Authentication for AD/LLDP
Beginning in ExtremeControl version 8.2, you can configure multiple AAA authentication rules by which to authenticate an end-user. This functionality provides you with the ability to fall-through and authenticate against the next AAA authentication rule in the event the authentication configured as the first AAA authentication rule results in authentication failure or the Directory Service is unreachable.
SLX Endpoint Tracking
Beginning in ExtremeControl version 8.2, you can dynamically assign VLANs to VM applications connecting to SLX in the Data Center. ExtremeConnect now integrates with VMware vCenter to receive data about instantiating and motion of VMs to facilitate the dynamic assignments of VLANs.
ExtremeControl Policy Now Supports the ExtremeCloud Appliance
The policy roles you configure via the Policy tab in Extreme Management Center now support the ExtremeCloud Appliance. When accessing your wireless network via the ExtremeCloud Appliance, a wireless controller with integrated ExtremeControl functionality, users are automatically assigned a policy role that defines their level of access on the network.
Migration of NAC Manager Functionality into ExtremeControl
Beginning in ExtremeControl version 8.2.0, two of the remaining legacy java NAC Manager application tools are migrated to ExtremeControl:
  • Configuration Evaluation Tool
  • NAC Notification Engine


Client Count Licenses Now Available
New ExtremeAnalytics licenses are based on number of in-network end-systems rather than flow rate. Either legacy flow rate licenses or new end-system count licenses can be enforced by this version of ExtremeAnalytics.
Extreme Cloud Appliance Now Available as Flow Source
The ExtremeCloud Appliance can now be added as a flow source to an Analytics engine.
Flows Sent to Cloud Providers Now Displayed on Application Flows Tab
ExtremeAnalytics now indicates flows that are sent to a cloud provider (for example, Amazon Web Services, Google Compute, and Microsoft Azure) via the Server Site column on the Application Flows tab.
ExtremeAnalytics Locations Now Included in Sites
End-system locations formerly configured in the Analytics tab are now part of the network sites. Unifying the sites with the end-system locations allows hierarchical organization and reporting of end systems, application usage, and user experience. Additionally, flows from or to external networks are tagged with the Country or cloud provider region (for example, "France" or "AWS us-east-1").
 IMPORTANT:To map existing locations to sites, access the Devices tab and select a site. Select the Endpoint Locations tab in the right-panel. Locations that are not yet associated with a site contain a broken link icon () icon. Right-click the location, select Assign to Site, and select a site from the drop-down menu.
Top Servers for Tracked Applications Report Now Available
ExtremeAnalytics now includes the Top Servers for Tracked Applications report, displaying the servers with highest number of clients, application bandwidth, or response time. Tracking these statistics for each server separately provides useful data for trouble-shooting user-experience issues.
Ability to Collect Flow Information on VSP Devices
Via Application Telemetry, ExtremeAnalytics now allows you to configure the following device types as flow sources:
  • VSP86xx with firmware version 6.2 and later
  • VSP4xxx, VSP72xx, VSP82xx, and VSP84xx with firmware version 7.1 and later

It is also possible to port-mirror SPB (Mac-in-Mac encapsulated) traffic to a PV-FC-180 for flow analysis. Firmware upgrade on PV-FC-180 may be required.
Flow Detailed Cached on Analytics Engine File System
When running on a system with an SSD file system, the Analytics Engine can store flow details on disk for up to five days. This allows for detailed analysis of network usage by a client or server before, during, or after an incident.
Ability to Initiate and View Packet Captures
You can initiate a packet capture for any device or end-system on the network. The resulting pcap files are stored on the Application Analytics engine and can be downloaded for inspection within Wireshark or other pcap utility.


VMware vSphere Enhancements
Extreme Management Center version 8.2 includes the following VMware vSphere enhancements:
  • Import a Hypervisor as a device into Extreme Management Center for visibility.
  • View virtual machine end-systems in ExtremeControl via end-system events without using RADIUS.
  • Use virtual network architecture mapping on VXLAN port group formatting.
Amazon Web Services Enhancements
Extreme Management Center version 8.2 includes the following Amazon Web Services (AWS) enhancements:
  • Create Extreme Management Center switches for AWS subnets.
  • Create Extreme Management Center switch ports for instance interfaces connected to AWS subnets.
  • View AWS instance reports in the Multi Cloud dashboard, now included on the Network > Dashboard tab.
Google Compute Engine Enhancements
Extreme Management Center version 8.2 includes the following Google Compute Engine enhancements:
  • Create Extreme Management Center switches for Google subnets.
  • Create Extreme Management Center switch ports for instance interfaces connected to Google subnets.
  • View Google instance reports in the Multi Cloud dashboard, now included on the Network > Dashboard tab.

Information Governance Engine

Your version of IGE is automatically upgraded when installing Extreme Management Center 8.2. The new version provides you with support for ICX, MLX, SLX, and VDX, devices. Regimes and audit tests you create in version 8.1 are retained following the upgrade.

Information Governance Engine Integration with Workflows
You can now integrate the Information Governance Engine with workflows functionality to automatically remediate devices that fail an audit test. By creating an alarm that is generated when a device fails an audit test, you can configure Extreme Management Center to automatically run a workflow when the alarm occurs. When configured, any time the Information Governance Engine performs an audit test for which a device fails, an alarm occurs that initiates a workflow designed to remediate the reason for the failure. To enable this functionality, configure the Information Governance Engine to send syslog messages by opening the Installation Directory/GovernanceEngine/logger.conf file and ensure enableSyslog=true.
Ability to Test ICX, MLX, SLX, and VDX Devices
Extreme Management Center version 8.2.0 adds support for ICX, MLX, SLX, and VDX devices in IGE. You can now test your ICX, MLX, SLX, and VDX devices using audit tests in the PCI, HIPPA, and GDPR compliances, which evaluate your devices for firewall and management policy for security measures. These tests are designed to monitor the network for threats, penetrations, and intrusions.
Ability to Schedule Email of Governance Results
Beginning in Extreme Management Center 8.2.0, you can create a scheduled task that automatically emails the most recently run governance test as a PDF to an email address or list of addresses you configure.
Usability Improvements
The Audit Tests tab is improved in version 8.2.0 to provide better operating system filtering and improved usability.

Deprecated Features

There are no deprecated features in Extreme Management Center version 8.2.

Known Issues Addressed

Known Issues Addressed in 8.2.4

Extreme Management Center Issues Addressed ID
The Ports tab in the Configure Device window was incorrectly updating values when clicking Reload. 1772853
PortView > Interface Details was displaying the incorrect port speed. 01786614
Enforcing VLAN changes to a device with more than 1024 ports was incorrectly updating additional fields. 1792898
Removing ports from a VLAN on an ExtremeXOS device via a topology map was not functioning properly. 1224880
Executing a task for a script that no longer exists generated an Error Loading Report error. 1546390
ExtremeXOS scripts were experiencing connection failures without retrying with alternate VRs. ------
Configuration files for VSP 8400 series devices were sometimes failing to archive. 01794911
After running a TCL/Python script to restart an ExtremeXOS device, the confirmation returned in the CLI was missing a carriage return. 01762635
ExtremeAnalytics Issues Addressed ID
ExtremeAnalytics engine status graphs were displaying very low Percent Bandwidth Identified values for ExtremeXOS devices. ------
The data in the Application/Client chart on the End-System Applications Summary tab was displaying inaccurate data. 01741582
Users were incorrectly unable to access the Network tab without the NetSight Application Analytics > Application Analytics Read Access capability. ------
Adding an ExtremeXOS device to ExtremeAnalytics as an Application Telemetry Source was not supported when the host IP was applied to an engine other than the VR-Default. 01746278
Adding a device as an Application Telemetry source on the ExtremeAnalytics Advanced Configuration tab was taking a considerable amount of time (occasionally over 20 minutes). ------
ExtremeControl Issues Addressed ID
Importing policy roles from another domain were incorrectly associating global services to the roles if the source domain contained local services of the same name. 1788278
The Add VLAN window in ExtremeControl's Policy Mapping Editor was losing focus or disappearing if the background or parent window was clicked. 01790982
Enforcing a policy role to an ExtremeCloud Appliance was failing if any rules contained a colon, semicolon, single quote, double quote, or ampersand. 01798248
LDAP user groups now use the LDAP configuration specified in the authenticating AAA authentication rule. 01790436
ExtremeControl was not correctly processing some SNMP errors, which was delaying all other SNMP tasks. 01745716
Clicking Search for older events was not functioning in the ExtremeControl End-Systems Events table. 1758370

Known Issues Addressed in 8.2.3

Extreme Management Center Issues Addressed ID
Firefox Browser users were incorrectly receiving the message: “Connection to server lost. Please try again later.” when attempting to launch Java Client Applications. 01761267
The Extreme Management Center Server was not attempting to restart after it became unresponsive. ------
Changing the number in the Retain Rows Count field in the Event Tables Row Limit section of the Alarm/Event Logs and Tables options was not changing the number of entries in the table. 01406736 1423143 01724568
Creating archives via ZTP+ was not completing successfully. ------
Creating archives for VOSS devices were not completing successfully. ------
Users were occasionally unable to log in to the legacy java applications. 1743521
The Interface Summary table on the Network tab was not displaying data. 1413817
The Protocol Address column in the VLAN Summary Device View was not updating for ZTP+-enabled devices. ------
Backup configurations for ERS and VSP devices were taking over 10 minutes to complete. ------
The Backup and Restore Configuration commands were not able to be modified via a script on devices on which the VOSS operating system is installed. ------
Wireless clients were not being sorted correctly in the Wireless > Clients > Clients window. 1749184
The MAC OUI Vendor column on the Wireless Clients and Client Events tabs were incorrectly not displaying data. 01761266
Link Down alarms were missing a comma between the trap message and the port number in the Information field of the alarm. 1761694
ZTP+ was not upgrading ExtremeXOS devices if the firmware was marked for upgrade and there was no cloud_connector.xmod file. In the Alarms & Events > Discovered window, the following error was reported: Connector must be upgraded. ------
Attempting to replace a device via ZTP+ functionality by selecting the Remove from Service checkbox and entering a value in the Replacement Serial Number field in the Configure Device window was not completing successfully if the device was upgraded while removing the device from service. ------
The Extreme Management Center server was not restarting using the service nsserver restart or systemctl restart nsserver commands. ------
Map links were not opening if the linked map was not visible (expanded) in the Sites tree. 01728714
Map links on the following device types sporadically disappeared until the device was rediscovered:
  • ERS-Series
  • VSP-7000
Opening the Vendor Profile tab in the Configure Device window was incorrectly forcing you to click the Enforce Preview button prior to modifying fields in the tab. ------
Events on the Events tab were loading slowly. ------
SNMP queries to devices with non-compliant SNMP agents occasionally stopped responding. 01760798
ExtremeAnalytics Issues Addressed ID
Apache Tomcat formerly allowed TLSv1.0 connections, which was a less secure protocol to communicate with the Application Analytics engine. ------
Enabling or disabling the disk flow export feature may cause enforce operations to time out. A subsequent enforce typically resolves this issue. ------
Extreme Management Center was not generating an alarm when the Historical Application Flow table was empty because the disk space on a sensor was more than 80% full. ------
ExtremeControl Issues Addressed ID
To improve security when connecting to the Access Control engine, you can no longer use SSLv2Hello, TLSv1.0, and TLSv1.1 to access the engine. You can now only connect to the Access Control engine via TLSv1.2. The agent may still connect using TLSv1.0.
Using quotation marks around an IP address to search for the exact match of an end-system located on the Access Control > End-Systems tab incorrectly returned non-matching results. 1321075
RADIUS Accounting STOP packets were not proxied for all session states. 01756188
Not all RADIUS attributes in the Access Control dictionaries correctly handle the has_tag attribute FLAG. ------
Opening the Add/Edit RADIUS Server window on the Policy > Devices/Port Groups > Devices > RADIUS > Authentication Servers tab incorrectly displayed an error when the Server Shared Secret and Verify Shared Secret fields were blank. 1768295
Reauthenticating an end-system on a B5 or C5 device with an Authentication Type of MAC and 802.1X was causing the authentication to stop responding. 1743570
Attempting to edit or delete a rule included in an ExtremeControl configuration in Extreme Management Center was not completing successfully. 01776876

Known Issues Addressed in 8.2.1

Extreme Management Center Issues Addressed ID
Bookmarking a page in the Devices view and then accessing the bookmarked page was loading the Dashboard tab. 01412328
Attempting to upgrade the firmware on an ICX device is not completing successfully and displays a "Device did not reset- system uptime did not reset" error message. To upgrade the firmware, configure "com.extreme.scripting.commandTimeoutInMillis=5" in NSJBoss.properties file. ------
Attempting to upgrade an operating system when using a network proxy behind a firewall did not complete successfully. ------
Attempting to upgrade the firmware on an ICX device using the ICX-TFTP script is not completing successfully when 'aaa authentication enable' is configured on the device. The upgrade the firmware, configure 'aaa authentication enable implicit-user' on the device. ------
ZTP+ devices added to Extreme Management Center before LLDP wait time expired was causing ports not to resolve from ZTPPlusLLDPPending role to the proper port Configuration on the Site > Port Templates tab. ------
The Configuration field on the Site > Port Templates tab was showing the internal port role ZTPPlusLLDPPending as a configurable option. ------
Clicking Save after editing a script that is saved as a task caused Extreme Management Center to become unresponsive. 01731269
Running a CLI script was slow to complete and generating timeout errors. 1730619
Clicking the Save Task button in the Run Workflow window and entering a Task Name window was causing Extreme Management Center to become unresponsive until you refresh. ------
Statistics Collection was occasionally not working properly for wireless controllers. 01740273
The Devices table on the Devices tab had two columns named Status. ------
ExtremeAnalytics Issues Addressed ID
Using NetFlow to view flow information in ExtremeAnalytics was causing the following error to display: ERROR [FlowBaseSocket] Exception: null. 01735172
ExtremeControl Issues Addressed ID
Clients attempting to connect to the network via guest registration were receiving an "Unknown error has occurred" error message. ------
Clicking Edit in the Authentication Rules table was causing the value in the User/MAC/Host field to be lost. ------
Attempting to enforce policy on X440G2 devices in a stacked configuration was occasionally not completing successfully because the device type was misidentified in Extreme Management Center. 1545397
Using the Captive Portal to perform HTTPS operations was resulting in poor performance. ------
Samba winbind processes were spawning unlimited child processes during periods of intermittent network connectivity with Active Directory controller. 1730745

Known issues addressed in 8.2.0

Extreme Management Center Issues Addressed ID
The status of an MLAG with a fiber link for control was incorrectly reported. 1218049
The Device Tree, when configured to display devices using the System Name format, was not using the system name for sort order. 1245000
Alarms that occurred on devices could not be cleared from the Devices tab, only from the Alarms and Events tab. Via the right-click menu, you can now clear alarms on the Devices tab. ------
The Extreme Management Center Webserver was not closing client connections effectively, which led to the server becoming unresponsive. 1392392
Users were unable to log into Extreme Management Center when using RADIUS authentication, if the RADIUS server was using a non-default port for authentication requests. 1549889
Filters applied to column data on the Events tab were not being applied when the page data automatically refreshed. 1726112
ExtremeConnect Issues Addressed ID

Vulnerabilities Addressed

This section presents the Vulnerabilities addressed in Extreme Management Center 8.2:

  • The following vulnerabilities were addressed in the Extreme Management Center, Access Control, and Extreme Application Analytics engine images:
    • CVE-2014-9620, CVE-2014-9621, CVE-2014-9653, CVE-2015-8865, CVE-2018-10360, CVE-2017-11108, CVE-2017-11541, CVE-2017-11542, CVE-2017-11543, CVE-2017-12893, CVE-2017-12894, CVE-2017-12895, CVE-2017-12896, CVE-2017-12897, CVE-2017-12898, CVE-2017-12899, CVE-2017-12900, CVE-2017-12901, CVE-2017-12902, CVE-2017-12985, CVE-2017-12986, CVE-2017-12987, CVE-2017-12988, CVE-2017-12989, CVE-2017-12990, CVE-2017-12991, CVE-2017-12992, CVE-2017-12993, CVE-2017-12994, CVE-2017-12995, CVE-2017-12996, CVE-2017-12997, CVE-2017-12998, CVE-2017-12999, CVE-2017-13000, CVE-2017-13001, CVE-2017-13002, CVE-2017-13003, CVE-2016-10254, CVE-2016-10255, CVE-2017-7607, CVE-2017-7608, CVE-2017-7609, CVE-2017-7610, CVE-2017-7611, CVE-2017-7612, CVE-2017-7613, CVE-2014-9092, CVE-2016-3616, CVE-2017-15232, CVE-2018-11212, CVE-2018-11213, CVE-2018-11214, CVE-2018-1152, CVE-2016-10087, CVE-2018-13785, CVE-2018-7182, CVE-2018-7183, CVE-2018-7184, CVE-2018-7185, CVE-2017-17833, CVE-2018-12938, CVE-2018-1000005, CVE-2018-1000007, CVE-2018-1122, CVE-2018-1123, CVE-2018-1124, CVE-2018-1125, CVE-2018-1126, CVE-2016-4429, CVE-2018-14622, CVE-2017-8779, CVE-2015-9262, CVE-2018-14598, CVE-2018-14599, CVE-2018-14600, CVE-2017-2619, CVE-2018-1000807, CVE-2018-1000808, CVE-2018-0495, CVE-2018-6594, USN-3715-1, CVE-2018-0494, CVE-2017-15422, CVE-2015-3218, CVE-2015-3255, CVE-2015-4625, CVE-2018-1116, CVE-2016-10713, CVE-2018-1000156, CVE-2018-6951, CVE-2018-1122, CVE-2018-1123, CVE-2018-1124, CVE-2018-1125, CVE-2018-1126, CVE-2018-18311, CVE-2018-18312, CVE-2018-18313, CVE-2018-18314, CVE-2016-2774, CVE-2017-3144, CVE-2018-5732, CVE-2018-5733, CVE-2016-10209, CVE-2016-10349, CVE-2016-10350, CVE-2017-14166, CVE-2017-14501, CVE-2017-14503, CVE-2017-7526, CVE-2018-6552, USN-3784-1, USN-3623-1, CVE-2018-16839, CVE-2018-16840, CVE-2018-16842, CVE-2018-11574, CVE-2017-13168, CVE-2018-15471, CVE-2018-16658, CVE-2018-9363, CVE-2018-18584 CVE-2018-18585, CVE-2018-3136, CVE-2018-3139, CVE-2018-3149, CVE-2018-3150, CVE-2018-3157, CVE-2018-3169, CVE-2018-3180, CVE-2018-3183, CVE-2018-3209, CVE-2018-3211, CVE-2018-3214, CVE-2018-13785, CVE-2018-14598, CVE-2018-14599, CVE-2018-14600, CVE-2015-9262, CVE-2018-18955, CVE-2018-6559, CVE-2018-18065, CVE-2018-15686, CVE-2018-15687, CVE-2018-6954, CVE-2018-18065, CVE-2018-0734, CVE-2018-0735, CVE-2018-5407, CVE-2018-17456, CVE-2016-10708, CVE-2018-15473, USN-3716-1
  • The following vulnerabilities were addressed in the Extreme Application Analytics engine images:
    • CVE-2015-3218, CVE-2015-3255, CVE-2015-4625, CVE-2018-1116, CVE-2017-15422, dnsmasq, dns-root-data

Upgrade, Installation, and Configuration Changes

Important Upgrade Information

License Renewal

Upgrading to Extreme Management Center version 8.2 requires you to renew your NMS license if generated prior to November 30, 2018. Licenses generated prior to November 30, 2018 expire 90 days after upgrading to Extreme Management Center version 8.2.

Internet Connection

Upgrading to Extreme Management Center version 8.2 requires an internet connection and upgrades the Ubuntu version to 16.04. If no internet connection is available, see Migrating or Upgrading to a 64-bit Extreme Management Center Engine.

  IMPORTANT: If a network proxy is required to access the internet, perform the following steps:
  1. Enter one of the following commands, depending on your configuration:
    • export http_proxy=http://yourproxyaddress:proxyport if a username and password are not required.
    • export http_proxy=http://username:password@yourproxyaddress:proxyport if a username and password are required.
  2. Run the binary upgrade for the engine.

ERS Device Configuration

ERS devices may automatically change VLAN configurations you define in Extreme Management Center. To disable this, change the vlan config control setting for ERS devices you add to Extreme Management Center by entering the following in the device command line:

CLI commands
config term
vlan configcontrol flexible

Additionally, configure all vlans on an ERS devices port with the same tag status (tagged or untagged). If enforcing to an ERS device on which a port has at least one VLAN as tagged, Extreme Management Center adds all untagged vlans to the tagged vlan list and clears the untagged vlan list.

ExtremeAnalytics Upgrade Information

Enabling or disabling the disk flow export feature may cause enforce operations to time out. Enforcing again resolves the issue.

ZTP+ managed Summit G2 devices and stacked ExtremeSwitching X440-G2 devices cannot be selected as an Application Telemetry source.

Fabric Manager Upgrade Information

Fabric Manager may be unavailable via Extreme Management Center after upgrading if the certificate is missing in Extreme Management Center Trust store.

To ensure Fabric Manager is available, enter the Fabric Manager certificate in the Extreme Management Center Trust store using Generate Certificate option. This manually updates the Extreme Management Center trust store with Fabric Manager Certificate entry.

Additionally, when provisioning authentication keys for Fabric Attach, the key cannot be read back for security reasons. When the key is read from the device it will always show "****". For this reason, it may appear that there is a configuration mismatch when one does not exist.

Fabric-enabled devices on which multiple CLIP addresses are configured require specific configuration in Extreme Management Center version 8.2. If there are multiple IPv4 or IPv6 CLIP addresses configured on the device, Extreme Management Center selects the first address it finds in the CLIP IP address table. Once you import a CLIP address, do not modified the address. Changing the CLIP Address can disrupt your network.

ExtremeControl Installation Information

Immediately after installing version 8.2 on the Access Control engine, the date and time does not properly synchronize and the following error message displays:

WARNING: Unable to synchronize to a NTP server. The time may not be correctly set on this device.

Ignore the error message and the date and time automatically synchronize after a short delay.

Additionally, the following message may appear during the ExtremeControl upgrade to version 8.2:

No domain specified

To stop domain-specific winbindd process, run /etc/init.d/winbindd stop {example-domain.com}

VDX Device Configuration Information

To properly discover interfaces and links for VDX devices in Extreme Management Center, enable three-tuple-if on the device.

  NOTE: To enable three-tuple-if on the device in Extreme Management Center:
  1. Access the Network > Devices tab.
  2. Right-click on the device in the Devices table.
  3. Select Tasks > Config > VDX Config Basic Support.

VSP Device Configuration Information

Topology links from VSP devices to other VSP or ERS devices may not display in a topology map (or may display inconsistently). To ensure topology map links display correctly, verify the VSP device is configured to publish its management IP address in the autotopology (SONMP) data.

Ensure the output of show sys setting command shows:

autotopology : on
ForceTopologyIpFlag : true
clipId-topology-ip : 0

If the output values displayed are different, configure the VSP device to publish management IP address in SONMP data by executing the following CLI commands:

(config)# autotopology
(config)# sys force-topology-ip-flag enable
(config)# default sys clipId-topology-ip

Firmware Upgrade Configuration Information

Extreme Management Center supports firmware downloads/uploads to devices using the TFTP, FTP, SCP, and SFTP protocols. However, before firmware images can be downloaded/uploaded from the server, Extreme Management Center needs to know the root path/directory for each of the protocols. The following shows the default root paths for each of the protocols and are configurable from the Administration > Options > Inventory Manager tab:

Protocol Root Path:

  • TFTP: /tftpboot/firmware/images/
  • FTP: /tftpboot/firmware/images/
  • SCP: /root/firmware/images/
  • SFTP: /root/firmware/images/

To upload firmware images 2 GB or less to the server, use the Extreme Management Center Network > Firmware tab. For files larger than 2 GB, use a third-party client (for example, SCP, WinSCP, FTP).

For example, enter the following to use SCP to upload a firmware image to the SCP root path on the server:

  • scp <LOCAL_FIRMWARE_PATH> root@<Extreme Management Center_SERVER_IP>:/root/firmware/images
  • Where:
    • <Extreme Management Center_SERVER_IP>= IP Address to Extreme Management Center Server
    • <LOCAL_FIRMWARE_PATH>= fully qualified path to a firmware image on the client machine

ExtremeControl Upgrade Configuration Information

System Requirements

  IMPORTANT: Extreme Management Center version 8.2 only runs on a 64-bit engine image. Any Extreme Management Center or Access Control (ExtremeControl) engine currently running a 32-bit OS image must be upgraded to the newer 64-bit image prior to upgrading to 8.2. Please contact Global Technical Assistance Center (GTAC) with any questions.

Wireless event collection is disabled by default in version 8.2 due to the increase in disk space usage required. To enable event collection, select Enable Event Collection on the Administration > Options > Event Analyzer tab.

Internet Explorer is not supported in Extreme Management Center version 8.2.3.

Extreme Management Center Server and Client OS Requirements

These are the operating system requirements for both the Extreme Management Center server and remote Extreme Management Center client machines.

  IMPORTANT: Only 64-bit operating systems are officially supported on the Extreme Management Center server. Any Extreme Management Center server currently running a 32-bit OS must be upgraded to a 64-bit OS.
  Operating System
Windows (qualified on the English version of the operating systems) Windows Server® 2012 and 2012 R2
Windows Server® 2016
Windows® 7
Linux Red Hat Enterprise Linux WS and ES v6 and v7
Ubuntu 16.04
Mac OS X® (remote Extreme Management Center client only) El Capitan
VMware® (Extreme Management Center Virtual Engine VMware ESXi™ 6.0 server
VMware ESXi™ 6.5 server
VMware ESXi™ 6.7 server
vSphere (client only)™
Hyper-V (Extreme Management Center Virtual Engine) Hyper-V Server 2012 R2
Hyper-V Server 2016

Extreme Management Center Server and Client Hardware Requirements

These are the hardware requirements for the Extreme Management Center server and Extreme Management Center client machines.

  NOTES: ExtremeControl and ExtremeAnalytics are not supported on Small Extreme Management Center servers.

Extreme Management Center Server

  Small Medium Enterprise Large Enterprise
Total CPUs 1 2 2 2
Total CPU Cores 8 16 16 16
Memory 16 GB 32 GB 64 GB 64 GB
Memory allocated to Java:


8 GB
12 GB

12 GB
18 GB

24 GB
36 GB

24 GB
36 GB
Disk Size 240 GB 480 GB 960 GB 1.92 TB
IOPS 200 200 10,000 10,000

Recommended scale based on server configuration:
Maximum APs 250 2,500 25,000 25,000
Maximum Wireless MUs 2,500 25,000 100,000 100,000
Maximum Managed Devices 100 1,000 10,000 10,000
ExtremeControl End-Systems N/A 50,000 200,000 200,000
Statistics Retention (Days) 90 180 180 360
ExtremeAnalytics No Yes Yes Yes
MU Events No Yes Yes Yes

Extreme Management Center Client

CPU Speed 3.0 GHz Dual Core Processor
Memory 8 GB (4 GB for 32-bit OS)
Disk Size 300 MB (User's home directory requires 50 MB for file storage)
Java Runtime Environment (JRE) (Oracle Java only) Version 8
Browser* (Enable JavaScript and Cookies) Microsoft Edge (version in compatibility mode)
Mozilla Firefox (version 34 or later*)
Google Chrome (version 33.0 or later)

*Browsers set to a zoom ratio of less than 100% may not display Extreme Management Center properly (e.g. missing borders around windows). Setting your browser to a zoom ratio of 100% corrects this issue.

**When accessing Extreme Management Center using Firefox version 59.0.1 on a non-touchscreen system on which a Windows operating system is installed, the vertical scroll arrows do not display.

Virtual Engine Requirements

The Extreme Management Center, Access Control, and Extreme Application Analytics virtual engines must be deployed on a VMWare or Hyper-V server with a disk format of VHDX.

  • The VMWare Extreme Management Center virtual engines are packaged in the .OVA file format (defined by VMware).
  • The Hyper-V Extreme Management Center virtual engines are packaged in the .ZIP file format.
  IMPORTANT: For ESX and Hyper-V servers configured with AMD processors, the Extreme Application Analytics virtual engine requires AMD processors with at least Bulldozer based Opterons.

Extreme Management Center Virtual Engine Requirements

  Small Medium Large
Total CPU Cores 8 16 16
Memory 16 GB 32 GB 64 GB
Memory allocated to Java:


8 GB
12 GB

12 GB
18 GB

24 GB
36 GB
Disk Size 240 GB 480 GB 960 GB
IOPS 200 200 10,000

Recommended scale based on server configuration:
Maximum APs 250 2,500 25,000
Maximum Wireless MUs 2,500 25,000 100,000
Maximum Managed Devices 100 1,000 10,000
Access Control End-Systems N/A 50,000 200,000
Statistics Retention (Days) 90 180 180
Application Analytics No Yes Yes
MU Events No Yes Yes

Access Control (ExtremeControl) Virtual Engine Requirements

  Small Medium Enterprise
Total CPU Cores 8 16 16
Memory 12 GB 16 GB 32 GB
Disk Size 40 GB 120 GB 120 GB
IOPS 200 200 200

Recommended scale based on server configuration:
ExtremeControl End-Systems 3,000 6,000 9,000/12,0001
Authentication Yes Yes Yes
Captive Portal No Yes Yes/No1
Assessment No Yes No

1The Enterprise Access Control engine configuration supports two different scale options:

  • Up to 9,000 end-systems if your network uses Captive Portal functionality.
  • Up to 12,000 end-systems if your network does not use Captive Portal functionality.

Extreme Application Analytics Virtual Engine Requirements

  Small Medium Enterprise
Total CPU Cores 8 16 16
Memory 12 GB 32 GB 64 GB
Disk Size 40 GB 480 GB 960 GB
IOPS 200 10,000 10,000

Recommended scale based on server configuration:
Flows Per Minute 250,000 500,000 750,000
Raw Flow Retention (Days) 3.5 3.5 7
  IMPORTANT: The ESXi free license supports a maximum of 8 CPU cores, while the medium and enterprise Extreme Application Analytics virtual engine installation require 16 CPU cores. This is only available by purchasing a permanent license. To use the Extreme Application Analytics virtual engine with an ESXi free license, adjust the number of CPU cores to 8.

Ensure at least 4 GB of swap space is available for flow storage on the Extreme Application Analytics virtual engine or impaired functionality may occur. Use the free command to verify the amount of available RAM on your Linux system.

Fabric Manager Requirements

Total CPU Cores 4
Memory 9 GB
Memory allocated to Java:


4 GB
6 GB
Disk Size 60 GB

ExtremeControl Agent OS Requirements

The table below outlines the supported operating systems for end-systems connecting to the network through an Extreme Networks ExtremeControl deployment that is implementing agent-based assessment. Additionally, the end-system must support the operating system disk space and memory requirements as provided by Microsoft® and Apple®.

  Operating System Operating System Disk Space Available/Real Memory
Windows* Windows Vista
Windows XP
Windows 2008
Windows 2003
Windows 7
Windows 8
Windows 8.1
Windows 10
80 MB 40 MB (80 MB with Service Agent)
Mac OS X Tiger
Snow Leopard
Mountain Lion
El Capitan
10 MB 120 MB
  *NOTE: Certain assessment tests require the Windows Action Center (previously known as Windows Security Center), which is supported on Windows XP SP2+, Windows Vista, and Windows 7, Windows 8, and Windows 8.1 operating systems.

Access Control Agent support for Antivirus/Firewall products includes, but is not limited to, the following families of products:

  • McAfee
  • Norton
  • Kaspersky
  • Trend Micro
  • Sophos

Access Control Agent operating system support for the above products includes the latest Windows/Mac OS X versions currently available at the time of product release. Not all features of all products may be supported. For additional information on specific issues, see Known Issues and Limitations.

ExtremeControl Supported End-System Browsers

The following table outlines the supported desktop and mobile end-system browsers connecting to the network through the Mobile Captive Portal of Extreme Networks ExtremeControl.

  Browser Version
Desktop Microsoft Edge
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
41 and later
11 and later
34 and later
33.0 and later
Mobile Internet Explorer Mobile
Microsoft Edge
Microsoft Windows 10 Touch Screen Native (Surface Tablet)
iOS Native
Android Chrome
Android Native
11 and later (Windows Phone)
All versions
9 and later
4.0 and later
4.4 and later
All versions
All versions
  NOTES: A native browser indicates the default, system-installed browser. Although this may be Chrome (Android), this also includes the default, system-controlled browser used for a device’s Captive Network Detection. Typically, this is a non-configurable option for Wi-Fi Captive Network Detection, but default Android, Microsoft of iOS devices are tested for compatibility with the Mobile Captive Portal.

A mobile device can access the standard (non-mobile) version of the Captive Portal using any desktop-supported browsers available on a mobile device.

For other browsers, the Mobile Captive Portal requires the browser on the mobile device be compatible with Webkit or Sencha Touch.

To confirm compatibility with Webkit or Sencha Touch, open http://<Access Control Engine IP>/mobile_screen_preview using your mobile web browser.

  • If the browser is compatible, the page displays properly.
  • If the browser is not compatible with the Mobile Captive Portal, the following error appears:

Access Control (ExtremeControl) Engine Version Requirements

For complete information on Access Control engine version requirements, see the Extreme Management Center Version 8.2 Release Notes section of these Release Notes.

ExtremeControl VPN Integration Requirements

This section lists the VPN concentrators supported for use in Access Control VPN deployment scenarios.

Supported Functionality: Authentication and Authorization (policy enforcement)
Cisco ASA
Enterasys XSR

Supported Functionality: Authentication
Juniper SA (requires an S-Series Stand Alone (SSA) system in order to provide access control)

  NOTE: For all Access Control VPN Deployment scenarios, an S-Series Stand Alone (SSA) system is required to change authorization levels beyond the initial authorization, for example, when using assessment.

ExtremeControl SMS Gateway Requirements

The following SMS Gateways have been tested for interoperability with ExtremeControl:

  • Clickatell
  • Mobile Pronto

Other SMS Gateways that support the SMTP API should be able to interoperate with ExtremeControl, but have not been officially tested.

ExtremeControl SMS Text Messaging Requirements

The following mobile service providers are supported by default for SMS text messaging in an ExtremeControl deployment. Additional service providers can be added:

AT&T SunCom
Alltel T-Mobile
Bell Mobility (Canada) US Cellular
Cingular Verizon
Metro PCS Virgin Mobile (Canada)
Rogers (Canada) Virgin Mobile
Sprint PCS  

ExtremeAnalytics Requirements

To use an ExtremeSwitching X440-G2 switch as an Application Telemetry source for ExtremeAnalytics, install firmware version or higher.

Ekahau Maps Requirements

Extreme Management Center supports importing Ekahau version 8.x maps in .ZIP format.

Guest and IoT Manager Requirements

Guest & IoT Manager Server OS Requirements

These are the operating system requirements for Guest & IoT Manager server:

  Operating System
VMware® (Extreme Management Center Virtual Engine VMware ESXi™ 5.5 server
VMware ESXi™ 6.0 server
VMware ESXi™ 6.5 server
vSphere (client only)™

Guest & IoT Manager Outlook Add-in Client Requirements

These are the requirements for the Client Machines which need to run Guest & IoT Manager Outlook Add-in.

  Operating System
Windows* Windows 7
Windows 10
Mac OS X Sierra
High Sierra
  *NOTE: Microsoft® Outlook® 2016 is needed on Windows/Mac clients for the add-in to operate.

Guest and IoT Manager Virtual Engine Requirements

The VMWare Guest & IoT Manager virtual engines are packaged in the .OVA file format (defined by VMware) and needs an x86, 64-bit capable environment

  Minimum Recommended
Total CPU Cores 2 4
Memory 2 GB 4 GB
Disk Size 80 GB 80 GB
Interfaces 1 Physical NIC 3 Physical NICs

Guest and IoT Manager Supported Browsers

The following table outlines the supported desktop and mobile browsers that can be used to launch Guest & IoT Manager Admin and Provisioner Web Application:

  Browser Version
Desktop Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
11 and later
63 and later
65 and later
Mobile* iOS Native
Android Chrome
US Browser
9 and later
65 and later
11.5 and later
40 and later
63 and later

*Mobile Browsers are supported only for the Guest Self-Service Provisioning flow.


  • A mobile device can access the Guest & IoT Manager Application by using any desktop-supported browsers available on a mobile device. Make sure to select the Desktop site option in the browser options before login.
  • Browsers set to a zoom ratio of less than 100% may not display Guest & IoT Manager Application properly (for example, missing borders around windows). Setting your browser to a zoom ratio of 100% corrects this issue.
  • Guest & IoT Manger Application is best viewed in 1920 x 1080 resolution or higher. Lower resolutions may result in improper layouts in some cases.

Getting Help

If you require assistance, contact Extreme Networks using one of the following methods:

Extreme Portal
Search the GTAC (Global Technical Assistance Center) knowledge base, manage support cases and service contracts, download software, and obtain product licensing, training, and certifications.
The Hub
A forum for Extreme customers to connect with one another, answer questions, and share ideas and feedback. This community is monitored by Extreme Networks employees, but is not intended to replace specific guidance from GTAC.
For immediate support: 1-800-998-2408 (toll-free in U.S. and Canada) or 1-603-952-5000.

Before contacting Extreme Networks for technical support, have the following information ready:

  • Your Extreme Networks service contract number and/or serial numbers for all involved Extreme Networks products
  • A description of the failure
  • A description of any action(s) already taken to resolve the problem
  • A description of your network environment (such as layout, cable type, other relevant environmental information)
  • Network load at the time of trouble (if known)
  • The device history (for example, if you have returned the device before, or if this is a recurring problem)
  • Any related Return Material Authorization (RMA) numbers