Specifications

New and Enhanced Features in AlliedWare Plus 5.4.4 Major and Minor Versions 267
Important Considerations Before
Upgrading to this Version
Licensing
For software version 5.4.4-0.1 to 5.4.4-0.3, AlliedWare Plus software releases require a
license on all products. From software version 5.4.4-0.4 onwards, AlliedWare Plus software
releases require a license on SBx8100 and SBx908 Series switches only.
Before upgrading your software, please obtain a license from your authorized Allied
Telesis support center. You will need to provide the MAC addresses of the switches you
want to license.
For details, see:
■ “Licensing this Software Version on an x210 Series, IX5-28GPX, x510 Series,
x610 Series, x900 Series or SBx908 Switch” on page 289 and
■ “Licensing this Software Version on a Control Card on an SBx8100 Series Switch” on
page 291.
Upgrading a VCStack
This version supports VCStack “reboot rolling” upgrades. With the reboot rolling
command, you can reduce downtime when upgrading a VCStack.
You can use the reboot rolling command to upgrade to any 5.4.4-0.x version from any
5.4.3-x.x version.
Forming or extending a VCStack
If you create a VCStack from switches that are running different software versions, auto-
synchronization ensures that all members will run the same software version when they
boot up.
Auto-synchronization is supported between all versions of 5.4.4-0.x. It is not supported
between 5.4.4-0.x and earlier versions, such as 5.4.3-x.x.
Before you add a new switch to a stack, make sure the new switch’s software version is
compatible with the stack’s version. If the new switch is running an incompatible version,
it cannot join the stack until you have manually upgraded it.