The following sections describe what is new in this release:
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 Fabric Engine User Guide.
This release adds support for channelization and MLT with 100G-LR4-QSFP10KM at both ends of the MLT link.
This enhancement also allows you to use 100 Gbps LR4 optics in QSFP28 ports and have a 100 Gbps connection with a 4x25 Gbps MLT. With this change, when a 5520 Series detects the optic, it automatically channelizes the port. Other universal hardware platforms do not automatically channelize when detecting this part.
To find product descriptions and compatibility information for optical transceivers and components, visit the Extreme Optics website.
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 Fabric Engine CLI Commands Reference and Fabric Engine User Guide.
This release introduces the following enhancements:
Additional resource information—The show fulltech command includes information for the show ip arp spbm-tunnel-as-mac [vrf WORD<1-16>] [vrfids WORD<0-512>] command.
Auto-sense for Fabric Attach (FA) enhancement—You can now configure the management I-SID and C-VID values for FA proxy management and FA proxy ring management independently. In the previous release, the configured management I-SID and C-VID values were used for both FA proxy management and FA proxy ring management.
EAP enhancement—You can use the clear eapol eap command to clear EAP client sessions on the switch.
MACsec enhancement—The connectivity association key name increases from 16 to 32 characters for MACsec capable platforms.
Reset the switch—The show software command now displays the number of seconds remaining until the switch resets in addition to the number of days, hours, and minutes.
SSH enhancement—You can now use either the IS-IS host name or IS-IS system ID with the SSH client on a switch to establish a connection to another switch in the SPBM cloud. The Destination Device Identifier uses the format: "fe80::xxxx:xxxx:xxxx%linuxsshtobmac". The last 48 bits of the link-local address represent the IS-IS system ID, and "linuxsshtobmac" is the native Linux stack interface name used by this enhancement.
Note
You cannot establish an SSH connection to the boundary node from an IS-IS remote area.
Upgrade enhancement—If you attempt to upgrade the software on a switch with inadequate space, the switch can remove log files, if that creates sufficient space to proceed with the upgrade.
VRF creation on 5320 Series—The 16- and 24-port models display the following warning and confirmation prompt if you enter the ip vrf WORD<1–16> command: Warning: creating a new VRF will activate Unicast Routing on it and this will de-activate Unicast routing on existing VRF GlobalRouter. Are you sure about creating new VRF? (y/n) ?
For more information, see Fabric Engine CLI Commands Reference and Fabric Engine User Guide.
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 Fabric Engine User Guide.
Note
This enhancement does not apply to fixed power supply units.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.
For more information, see Fabric Engine User Guide.
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 Fabric Engine User Guide.
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 Fabric Engine User Guide.