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Release Note
Software Version 2.8.1
For AT-8800, Rapier i, AT-8700XL, AT-8600,
AT-9900, x900-48FE, AT-8900 and AT-9800 Series
Switches
and AR400 and AR700 Series Routers
Introduction .......................................................................................................4
Upgrading to Software Version 2.8.1 .................................................................5
Backwards Compatibility Issue when Upgrading ......................................... 5
Overview of New Features .................................................................................6
System Enhancements .......................................................................................9
Clearing System Parameters ....................................................................... 9
Extended Monitoring of CPU Utilisation ...................................................... 9
Command Reference Updates .................................................................. 11
Command Line Interface (CLI) Enhancements ..................................................15
More flexibility in Separating Parameters and Values ................................. 15
Additional Shortcuts when Editing ............................................................ 17
Command Reference Updates .................................................................. 18
File System Enhancement .................................................................................21
Command Reference Updates .................................................................. 21
Switching Enhancements .................................................................................25
Ordering Hardware Filters in 48-Port Switches .......................................... 25
Limiting Rapid MAC Movement ................................................................ 27
Route Update Queue Length .................................................................... 29
Removing a Description from a Switch Port .............................................. 30
Securing a Single VLAN through Switch Filters .......................................... 30
Change of Debug Command Syntax ........................................................ 32
Enhanced Static Switch Filtering on Ports within a Trunk Group ................ 32
Ethernet Protection Switching Ring (EPSR) ................................................ 32
Command Reference Updates .................................................................. 33
PPPoE Access Concentrator ..............................................................................47
Command Reference Updates .................................................................. 47
MSTP Enhancement .........................................................................................50
Command Reference Updates .................................................................. 50
STP Enhancement ............................................................................................51
Command Reference Updates .................................................................. 51
Asynchronous Port Enhancement .....................................................................52
Making Asynchronous Ports Respond More Quickly .................................. 52
Command Reference Updates .................................................................. 53
Internet Group Management Protocol (IGMP) Enhancements ...........................55
IGMP Proxy on x900 Series Switches ......................................................... 55
IGMP filtering extended to all IGMP message types .................................. 57
Monitoring reception of IGMP general query messages ............................ 59
Command Reference Updates .................................................................. 60
Internet Protocol (IP) Enhancements .................................................................66
Expanded number of Eth interfaces per physical interface ......................... 66
Expanded IP Troubleshooting .................................................................... 66