Specifications

C613-10506-01-REV A Software Release Note AlliedWare Plus Version 5.4.2-0.1 5
New Features and Enhancements
This software version includes the following main new features in AlliedWare Plus version
5.4.2-0.1 since version 5.4.1-0.1. For a list of all new and enhanced features and commands, see
“Changes in this Version” on page 8. 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.
VCStack Long Distance Stacking for x610 Series
Long distance stacking allows up to eight units to be stacked over SFP+ fibre connections in
conjunction with the AT-x6EM/XS2 module. This is in contrast to the shorter AT-StackXG
cables used in conjunction with the AT-StackXG module CX4 interfaces.
Long distance stacking allows a geographically separated stack of x610 units to all be managed
as one switch. Any organization with a large or geographically separated site will benefit,
including universities and high-rise offices. For more information, see the Stacking Introduction
chapter in the Software Reference.
EPSR Interconnected Rings with Superloop Protection
Where EPSR loops share a common segment and common data VLANs, a break in the
common segment can result in a path loop existing across the rings. Superloop protection
prevents the existence of these loops by applying priorities to the master nodes. Nodes
attached to a common link will send link-down messages only to the highest priority master,
thereby allowing only a single master node to unblock its secondary port. For more
information, see the EPSR Introduction and Configuration chapter in the Software Reference.
PIM-SSM
Protocol Independent Multicast—Source Specific Multicast (PIM-SSM) is derived from Protocol
Independent Multicast—Sparse Mode (PIM-SM) and is a simplified version of PIM-SM. While
PIM-SM supports both a “many-to-many” and a “one-to-many” model, PIM-SSM only supports
the “one-to-many” model, also known as a “broadcast application”. PIM-SSM builds shortest
path trees (SPT) that are directly rooted at the source. For more information, see the PIM-SM
Introduction and Configuration chapter in the Software Reference.
Digital Diagnostics Monitoring (DDM) for SFPs, SFP+s and XFPs
You can now trouble-shoot fiber cable and pluggable issues with diagnostic information about
installed pluggable transceivers:
■ SFP pluggable transceivers, for SFPs and SFP+s that support DDM (Digital Diagnostic
Monitoring)
■ XFP pluggable transceivers, for XFPs that support DOM (Digital Optical Monitoring)
For more information, see the Getting Started chapter in the AlliedWare Plus Software Reference.
TACACS+ Enhancements
AlliedWare Plus now supports TACACS+ login and command accounting enhancements:
■ TACACS+ login accounting
■ TACACS+ command accounting
■ enable password authentication
TACACS+ login and command accounting enables the logging of user sessions and CLI
commands entered at the console to create an audit trail for user and console activity.
See the TACACS+ Introduction and Configuration and TACACS+ Commands chapters in the
Software Reference for TACACS+ accounting configuration and command information.
Note: TACACS+ accounting and authentication is not supported in the AlliedWare Plus GUI.