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C613-10508-01-REV B Software Release Note AlliedWare Plus Version 5.4.3-0.1 7
New Features and Enhancements
The software version includes all the new features that have been added to AlliedWare
Plus since the release of 5.4.2-0.1. This includes all features that were released in 5.4.2
minor releases.
This section summarizes the key new features. For a list of all new and enhanced features
and commands, see “Changes in this Version” on page 10. For more information about all
features on the switch, see the Software Reference for your switch. Unless otherwise
stated, all new features and enhancements are available on all switch models running this
version of AlliedWare Plus.
IPv6 Enhancements
PIM-SMv6
Software version 5.4.3 adds support for Protocol Independent Multicast - Sparse Mode for
IPv6. PIM-SMv6 provides efficient communication between members of sparsely
distributed groups in PIM-SM IPv6 networks.
MLD
Software version 5.4.3 expands the Alliedware plus support for Multicast Listener
Discovery (MLD). MLD is the IPv6 equivalent of the Internet Group Management Protocol
(IGMP) for IPv4. It is used by IPv6 routers to discover the presence of multicast listeners on
their directly attached links and to discover which multicast addresses are of interest to
those listeners. This ensures that multicast traffic is forwarded as efficiently as possible,
conserving network bandwidth.
AlliedWare Plus now supports both MLDv1 and MLDv2. Previous releases supported MLD
Snooping functionality. This release now supports MLDv2 Querier functionality.
Static IPv6 Multicast Routes
Software version 5.4.3 adds the ability to create static IPv6 multicast forwarding entries.
Rather than relying on a dynamic multicast routing protocol like PIM to set up L3 multicast
entries, it is possible to create the entries statically. Static IPv6 Multicasting has been
added as a base license feature for AlliedWare Plus version 5.4.3.
DHCPv6
Software version 5.4.3 adds support for Dynamic Host Configuration Protocol (DHCPv6),
which is a protocol used to dynamically assign IPv6 addresses to hosts from a central
location. Acting as DHCPv6 client enables the switch to receive an IPv6 address, and acting
as server enables the switch to dynamically allocate IPv6 addresses to hosts. The DHCPv6
server and client both support the Prefix Delegation feature which allocates a whole IPv6
subnet to a DHCP client. The client, in turn, can allocate addresses from this subnet to the
hosts that are connected to it.
OSPFv3 Authentication/Confidentiality
Software version 5.4.3 adds support for OSPFv3 authentication and confidentiality, which
enable the secure sharing of routing information by encrypting OSPFv3 messages.
VRRPv3
Software version 5.4.3 adds support for Virtual Router Redundancy Protocol for IPv6
networks, by implementing VRRPv3. VRRPv3 is a protocol for providing device
redundancy, for connecting redundant WAN gateway routers or server access switches. It
allows a backup router or switch to automatically take over if the primary (master) router
or switch fails.