The following sections detail what is new in this document.
7520 Series and 7720 Series are families of high-performance, feature-rich core and aggregation switches designed for the next generation digital enterprise. As universal hardware platforms, the 7520 Series and 7720 Series provide end-to-end secure network segmentation, in addition to advanced policy capabilities, and offer a user-selectable choice of Extreme‘s flagship switch operating systems.
Fabric Engine 8.10 supports the following new switching models:
7520-48Y-8C
48 1/10/25Gbe SFP28 ports, 8 40/100Gbe QSFP28 ports
7520-48XT-6C
48 1G/10GBase-T ports, 6 40/100Gbe QSFP28 ports
The 7520 Series switches support one RJ 45 out-of-band (OOB) management port.
7720-32C
32 40/100Gbps QSFP28 ports
The 7720 Series supports dual RJ 45 out-of-band (OOB) management ports.
In addition to the fixed ports, all 7520 Series and 7720 Series models provide one RJ-45 interface port, one Type A USB port, dual redundant hot-swappable power supplies and six hot-swappable fan units.
For optics compatibility, see the Extreme Optics website.
For high-level feature support information, see Fabric Engine and VOSS Feature Support Matrix.
In previous releases, you could not change the administrative state of an IP interface on a VLAN or brouter port, which meant you had to remove the IP address from the interface before you could make an IP-Layer-related configuration change. Now, you can enable or disable an IPv4 interface. By default, the switch enables an IP interface after you configure the primary IP address.
For more information, see IPv4 Interface State.
SPBM requires that every switch in the fabric have a unique nickname. In previous releases the nickname was either preconfigured or assigned by a nickname server on a seed node to all devices in the fabric.
This release removes the requirement for a seed node or statically preconfigured nickname. Each device that joins the fabric can now automatically self-assign a random nickname from a fixed range.
For more information, see Auto-nickname for SPBM.
A new flowchart is included in this document to illustrate the logic of Automatic Channelization with Auto-sense, a feature added in a previous release. For more information, see Automatic Channelization with Auto-sense.
Starting with this release, you can configure the wait interval time, in seconds, for a specific interface. A per-port configuration offers the flexibility to accommodate devices that send Link Layer Discovery Protocols (LLDPs) packets with high delays together with devices that transition to UNI or other states quickly on the same switch.
For more information, see the following tasks:
This release supports dual speed optics when inserted in a port. For more information, see Multi-speed Ports.
This release introduces OSPFv3 neighbor advertisements without R-bit. If an OSPFv3 neighbor does not provide the R-bit in the Network Discovery (ND) packet, the system enables R-bit for every OSPFv3 neighbor with dependent routes to avoid deletion resulting from inactivity. An OSPFv3 neighbor without R-bit that experiences a timeout can now trigger the Network Unreachability Detection (NUD), instead of being deleted.
For more information, see OSPFv3.
Important
Fabric Extend Integration with ExtremeCloud SD-WAN is added to the document in advance of feature support. Feature support is planned for 8.10.1.
You can extend the Fabric network over the Internet towards a remote branch by connecting Fabric switches through ExtremeCloud SD-WAN.
This switch integrates the following features for SD-WAN deployments:
Automation of Fabric Extend Tunnels over IP WAN infrastructure
MTU configuration per IS-IS logical interface that connects to a Fabric Extend tunnel (Layer 3 interfaces only)
Fragmentation and reassembly for IS-IS packets that exceed the MTU of the logical interface
For more information, see the following sections:
This release introduces support for Multi-area SPB on 5520 Series and 5720 Series switches.
The Multi-area SPB feature enables building a scalable Shortest Path Bridging (SPB) network, consisting of multiple Intermediate System-to-Intermediate System (IS-IS) areas that connect to each other through the boundary nodes. The Multi-area SPB feature provides flexible network design through which you can group the nodes in the areas on a need basis.
For more information about Multi-area SPB, see the following sections:
In previous releases, you could only specify an IPv4 or IPv6 address when you configured an NTP server. Now, you can use an FQDN, such as host.example.com, for the server address.
For more information, see Network Time Protocol.
Extreme-Dynamic-Config adds support for port bounce on an EAP port. Use this feature to restart the DHCP process and obtain a new IP address in the RADIUS VLAN.
For more information, see Extreme-Dynamic-Config.
Layer 2 VLANs can use Secondary IP Interfaces to support multiple IP subnets, which increases the number of hosts that connect on a single Layer 2 VLAN. Prior to this release, you could only configure a single Layer 2 VLAN to a single Layer 3 IP subnet.
For more information, see Secondary IP Interfaces.
A further enhancement, DHCP Smart Relay, makes DHCP Relay aware of Secondary IP Interfaces. DHCP Smart Relay can also work with a subset of VRRP addresses.
For more information, see DHCP Smart Relay for Secondary IP Interfaces.
On 5420 Series switches, you can use Time Domain Reflectometer (TDR) 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.
Note
5420F-24S-4XE model does not support this feature.
For more information, see the following sections:
This software release provides support for the following features for ExtremeCloud IQ ‑ Site Engine 23.4:
Enable DvR leaf without requiring a reboot.
Configure global Auto-sense parameters, including port Auto-sense data I-SID.
Create and assign a VRF to a VLAN.
For more information, see ZTP+ Phases of Operation.