The following sections detail what is new in this document.
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.
The Advanced Feature Bandwidth Reservation feature allocates bandwidth of the reserved Ethernet ports to the loopback required for advanced feature functionality.
In previous releases, the VSP 7400 Series 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:
Multicast over SPB - UNI to NNI
IS-IS Accept Policies (Inter-VRF Routing)
I-SID Mirroring
Application Telemetry
IPFIX
Segmented Management CLIP
Fabric Extend
VXLAN Gateway
Note
You can consider using low bandwidth mode instead of high bandwidth mode to free up two reserved ports for use as regular ports.
For more information, see advanced-feature-bandwidth-reservation Boot Flag.
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.
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 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.
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.
Support for RFC 7627 was introduced in VOSS 8.3.200 for Federal Information Processing Standards (FIPS 140-3) compliance. This release adds support for an extended master secret extension for TLSv1.2 as defined in RFC 7627.
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.
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.