New in this Document

The following sections detail what is new in this document.

Advanced Feature Bandwidth Reservation Enhancement for 5520 Series and 5720 Series

The Advanced Feature Bandwidth Reservation feature allocates bandwidth of the reserved Ethernet ports to the loopback required for advanced feature functionality.

In previous releases, these switches used bandwidth from some of the reserved front panel ports to support advanced features. In this release, fewer features require bandwidth from the reserved front panel ports.

The following features do not require bandwidth from the reserved ports:

The following advanced features continue to require loopback ports:

For more information, see Advanced Feature Bandwidth Reservation.

DHCP Server Enhancement

You can now configure DHCP vendor-specific options (Option 43) and apply configuration to clients that match a specific vendor class (Option 60).

For more information, see the following sections:

General Enhancements

This release introduces the following enhancements:

Multicast Lite RADIUS VSA Enhancement

Prior to this release, the Extreme-Dynamic-Client-Assignments Vendor Specific Attribute (VSA) failed if the VLAN and I-SID were statically configured. With this enhancement, configuration is applied even if the VLAN and I-SID are statically configured.

For more information, see the following sections:

Power Reporting Enhancement

show sys-info power and show sys power power-supply commands now include current, voltage, and power input and output details for the power supply unit installed in your switch.

Note

Note

Switches do not report this information for fixed power supply units.

For more information, see the following sections:

RADIUS Configuration using Fully Qualified Domain Name (FQDN)

In previous releases, you could only specify an IPv4 or IPv6 address when you configured a RADIUS server host or an IPv4 address for a RADIUS dynamic client. Now, you can use an FQDN, such as host.example.com, instead of an IP address.

For more information, see RADIUS Fundamentals.

Time Domain Reflectometer (TDR) on 5320 Series, 5520 Series, 5720 Series, and 7520-48XT-6C

On these switches, you can use Time Domain Reflectometer (TDR), also called Cable Diagnostic, to test Ethernet copper ports for defects, such as short pin and pin open. The TDR detects the state of the port or ports, the status of the cable pairs, and the length of the cable. For model support, see Fabric Engine and VOSS Feature Support Matrix.

For more information, see Time Domain Reflectometer (TDR).