Release Notes

Extreme Campus Controller Customer Release Notes
12/16/2021 P/N: 9037154-02 Subject to Change Without Notice Page: 9 of 18
F0615-O
Known Restriction or Limitation I.D
For Extreme Campus Controller configured for authentication of administrators
over RADIUS server, the GUI responsiveness may be slow, possibly over 30
seconds if target server(s) are unavailable/unreachable at login time. If outage is
extensive, system will eventually timeout to validate against local credentials when
provisioned.
ECA-1396
For High-Availability installations, on systems configured with RADIUS Accounting
or Smart RF enabled, clients (end-systems) may experience a momentary
disconnect during the upgrade process (maintenance window).
Users immediately reconnect to the available infrastructure, so impact is negligible.
For smoother session availability with fast-failover during a failover event, it is
recommended to not run these options. This issue is being investigated and will be
addressed in a future release.
ECA-1264
Upgrade failure will occur when using special characters (escape back slash) in
topology.
ECA-466
In SmartRF mode, the AP510 power may temporarily drop to 0dBm and returns to
4dBm.
ECA-469
With on-air-busy channel conditions, it is possible for the ACS not to produce the
expected results. In this instance, perform manual channel selection.
ECA-528
Widgets do not show tooltips for lower and upper values. This issue will be
addressed in a future release.
ECA-567
Firmware for ExtremeWireless AP3900 series access points does not currently
support Smart RF. No Smart RF data is displayed.
ECA-1484
Several old Intel clients (i.e. Intel dual band Wireless AC – 7260) if they are using
old drivers are NOT seeing BSSID / SSID advertising 11x capability. This is a client
issue (forward compatibility). Other older clients may have this issue.
See:
[https://www.intel.com/content/www/us/en/support/articles/000054799/network-
and-i-o/wireless-networking.html|http://example.com]
See KB:
[https://gtacknowledge.extremenetworks.com/articles/Solution/AP510-Unable-to-
see-the-SSID-on-my-laptop|http://example.com]
NB – The client driver update must be done from Intel\drivers' site because the
Windows update reports that the client is running the latest driver.
If the client driver cannot be controlled (in a BYOD environment), then the AP
radios must be configured on a/n/ac (disable ax) until all clients will upgrade to the
latest driver.
Info
Default router/gateway should be configured with a next-hop associated with one of
the physical interfaces. Pointing the default route to the Admin interface will lead to
issues because access points will not get the correct services from the data plane.
We recommend setting the default route via data ports, and if necessary,
configuring static routes on the Admin port for administration level access.
Info
Before installing a new Extreme Campus Controller license, you must configure
Network Time Protocol (NTP) Server settings. Licensing management is
dependent on accurate NTP configuration. Configure NTP via the Extreme
Campus Controller initial Configuration Wizard, or go to Admin > System > Network
Time to configure and verify the NTP settings.
Info
For AP deployments in remote locations where access points and controllers may
need to be discovered and connected over firewalls, a best practice is to leverage
DNS or DHCP Option 60/43 methods for zero-touch-provisioning discovery. These
Info