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Release Note
Software Maintenance Release Note
Version 281-02
for AR750S, AR750S-DP, AR770S, AR415S, AR450S and AR44xS series routers, and AT-8600 series switches
This software maintenance release note lists the issues addressed and enhancements made in Maintenance Version 281-02 for Software Version 2.8.1. Version
details are listed in the following table:
Models
AR415S, AR440S, AR441S, AR442S, AR450S
AR750S, AR750S-DP, AR770S
AT-8624T/2M, AT-8624PoE, AT-8648T/2SP
Caution: Using a maintenance version on the wrong model may cause unpredictable results, including disruption to the network.
This maintenance release note should be read in conjunction with the following documents:
■
the Release Note for Software Version 2.8.1, available from
■
your router or switch's Document Set for Software Release 2.8.1. This document set is available on the CD-ROM that shipped with your router or switch, or
from
www.alliedtelesyn.co.nz/documentation/documentation.html
Caution: Information in this release note is subject to change without notice and does not represent a commitment on the part of Allied Telesis Inc. While every
effort has been made to ensure that the information contained within this document and the features and changes described are accurate, Allied Telesis Inc. can
not accept any type of liability for errors in, or omissions arising from the use of this information.
Series
Release File
AR400
54281-02.rez
55281-02.rez
AT-8600
sr281-02.rez
www.alliedtelesyn.co.nz/documentation/relnotes/relnotes.html
Date
Size (bytes)
5 September 06
4673896
5 September 06
3936164
5 September 06
2251144
GUI file
415s_281-02_en_d.rsc
440s_281-02_en_d.rsc
441s_281-02_en_d.rsc
442s_281-02_en_d.rsc
450s_281-02_en_d.rsc
750s_281-02_en_d.rsc (AR750S and AR750S-DP)
sr24_281-02_en_d.rsc
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Related Manuals for Allied Telesis AR44xS
Summary of Contents for Allied Telesis AR44xS
- Page 1 Caution: Information in this release note is subject to change without notice and does not represent a commitment on the part of Allied Telesis Inc. While every effort has been made to ensure that the information contained within this document and the features and changes described are accurate, Allied Telesis Inc. can not accept any type of liability for errors in, or omissions arising from the use of this information.
- Page 2 Enabling and Installing this Release To use this maintenance release you must have a base release license for Software Release 2.8.1. Contact your distributor or reseller for more information. To enable this release and install it as the preferred release, use the commands: enable rel=xx281-02.rez num=2.8.1 set install=pref rel=xx281-02.rez where xx is the prefix to the filename, as shown in the table on page 1.
- Page 3 Features in 281-02 Software Maintenance Version 281-02 includes the resolved issues and enhancements in the following tables. In the tables, for each product series: ■ “Y” in a white column indicates that the resolution is available in Version 281-02 for that product series. ■...
- Page 4 Module Level CR00013736 Core When a BRI or PRI PIC was installed on the router, an issue with internal memory handling occasionally caused the router to reboot. This issue has been resolved. CR00013743 Switch If a user created a configuration file that contained LACP settings and VLAN port settings, then a loop occurred when the switch rebooted with this configuration.
- Page 5 Module Level CR00012476 IGMP If IGMP snooping was enabled but IGMP was not enabled, the snooper behaved as if IGMP snooping fast leave had been enabled even when it had not been. This meant that as soon as the snooper received a Leave message, the port left the group.
- Page 6 Module Level CR00013359 OSPF It was possible in unusual circumstances for the OSPF link state retransmission list to grow to a large number. This caused the router or switch to reboot. This issue has been resolved. CR00013390 WAN Load It was possible in unusual circumstances for the router to run out of memory after Balancer a WAN load balancer session was added.
- Page 7 Module Level CR00011710 Core When the router or switch sent a RADIUS accounting STOP packet, the packet’s Acct-Session-Time was always zero, no matter how long the session had been active for. This issue has been resolved. CR00013060 IPv6 Previously, if IPv6 had a dynamic Neighbour Discovery cache entry for a particular IPv6 address, it prevented users from adding a static entry for the same IPv6 address.
- Page 8 Module Level CR00013415 Firewall When an RTSP media stream, using TCP as the transport protocol, was passing through the firewall, then the session could stall if some packets were retransmitted with different sequence numbers to the original transmission. This issue has been resolved. CR00013473 DVMRP Values for some DVMRP settings (including ttlthreshold and metric) were not...
- Page 9 Module Level CR00013714 The router or switch’s SSH server occasionally disconnected an SSH client because of a checksum error. This occurred because the server did not decrypt the SSH session key correctly. This issue has been resolved. CR00013757 Core For AR750S-DP routers, the values of the fanAndPsPSUPresent MIB fields displayed incorrectly.
- Page 10 Module Level CR00013569 OSPF After OSPF deleted an AS-External LSA, it sometimes sent an unnecessary LSA with no changes. This issue has been resolved. CR00013683 File Japanese users can now delete the router or switch’s preferred software release and the current boot configuration file. For routers or switches that are manufactured for non-Japanese markets, users must first stop the files from being preferred, by setting new preferred files or by using the commands delete install=pref or set config=none.
- Page 11 Enhancements Module Level Previously, it was not possible to set the MTU for an ATM interface. CR00013126 This enhancement makes it possible to now do so. The MTU can be set to values between 256 bytes and 1600 bytes, inclusive. CR00013130 NAT-T, IPsec This software version supports more versions of IPsec NAT-T.
- Page 12 Module Level CR00013447 SHDSL The 4-wire support of SHDSL interfaces has been enhanced to provide support for a standards-based train-up mode as well as the existing enhanced train-up mode. This issue has been resolved. CR00013535 File Previously, a user could rename the current boot configuration file (by using the command rename).
- Page 13 Features in 281-01 Software Maintenance Version 281-01 includes the resolved issues and enhancements in the following tables. In the tables, for each product series: ■ “Y” indicates that the resolution is available in Version 281-01 for that product series. ■ “-”...
- Page 14 Module Level CR00012933 Switch When STP is enabled on the switch but is disabled for a trunk (by using the command disable stp port), the trunk should pass traffic. Previously, some trunk members sometimes stayed in the “discarding” state instead. This issue has been resolved.
- Page 15 Level 2 Module Level Bridge The Bridge cannot be configured to bridge PPPoE packets from an Ethernet CR00009212 interface that has also been configured as a PPPoE interface. Previously, such a Bridge configuration would appear to succeed. However the Bridge would not bridge PPPoE packets and the router would restart when the command reset bridge was entered.
- Page 16 Module Level CR00011434 File The router or switch sometimes rebooted when copying a very large file (several Mbytes). This issue has been resolved by improving the copy process so that it uses fewer memory buffers. CR00011670 Switch On x900-48 Series switches, when the switch used a DSCP map to remark packets, it did not mark the packets correctly.
- Page 17 Module Level CR00012613 Firewall When the WAN load balancer was used with IP NAT (instead of firewall NAT), and an FTP session was established to a server on the public network, the router did not correctly establish a return session. This meant data was unable to flow correctly back from the server, and the router rebooted.
- Page 18 Module Level CR00012697 IPsec, ENCO Decrypting a large IPsec ESP packet sometimes caused the router or switch to reboot. This issue has been resolved. CR00012710 Core Soft errors can generate exceptions that would cause the router or switch to reboot. Soft errors are spontaneous changes in the information stored in a digital circuit, caused by physical effects.
- Page 19 Module Level CR00012846 ASYN, Log The following issues occurred with sending log messages to an asynchronous port: ■ The log messages output on an asynchronous port were corrupt. ■ When log messages were output to an asynchronous port, that port was (correctly) locked.
- Page 20 Module Level CR00012868 ENCO Entering the command create enco key=number ip=? caused the router or switch to reboot. This issue has been resolved. CR00012900 IPv6, Switch When an IPv6 accelerator card was installed, IPv6 multicast traffic was flooded to all ports in a downstream VLAN, whether or not they had joined the multicast group.
- Page 21 Module Level CR00013003 EPSR, Switch When EPSR is enabled, it creates a classifier so it can send EPSR packets to the CPU for processing. Previously, if too many classifiers existed and therefore EPSR could not create the classifier, EPSR was enabled anyway. However, it did not work correctly.
- Page 22 Module Level CR00013407 EPSR The switch correctly accepted a changed ring flap time (the commands create or set epsr ringflaptime). However, if the command create config was used to save the configuration and the switch used that configuration after a reboot, EPSR failed.
- Page 23 Module Level CR00012309 WAN load WAN load balancer performance has been improved, especially through balancer improvements to the session hashing mechanism. OSPF An OSPF router or switch could show large numbers of entries in its CR00012468 retransmission lists to certain neighbours under certain conditions (for example, in a congested Frame Relay network).
- Page 24 Module Level CR00012708 many The command show debug active displays information about currently-active debugging for many modules at once. Similarly, the command disable debug active disables debugging for many modules in a single step. This Software Version extends the list of modules that these commands act on. They now apply to all modules with debug support, except for DS3, ACC, Q931, SA, SYN, TPAD, and X25C.
- Page 25 Module Level CR00013048 Firewall When IP NAT or firewall NAT was used, the router or switch sometimes generated ICMP messages that specified the wrong source IP address. This meant that the response to traceroute could be incorrect. This issue has been resolved. CR00013049 IPv6 The router or switch sometimes rebooted when it processed a large number of...
- Page 26 Module Level CR00013243 Core The system LED did not indicate when an internal power supply fault occurred. This issue has been resolved. The system LED now flashes 3 times to indicate a fault. Also, output of the show system command now reports voltages more accurately.
- Page 27 Level 4 Module Level CR00010159 When the web-based GUI is used to add or remove ports from a port-based VLAN association on an AT-9812T switch, the icons representing alternate ports faced opposite directions. This issue has been resolved. The port icons now all have the same orientation. CR00011311 IPsec In output of the commands show ipsec policy and show ipsec policy...
- Page 28 Module Level CR00012270 Remote Telnet The “?” help description for the enable command stated that the parameter rtelnet would “Disable the use of remote telnet to control an asyn port”. This issue has been resolved. The query now states that the command enable rtelnet enables remote telnet.
- Page 29 Module Level CR00012916 L2TP When the router or switch was configured as an LNS and received an incoming L2TP call that was associated with a disabled PPP interface, it produced an incorrect log message. This issue has been resolved. CR00012946 When a user entered the command show log receive=ipadd, information about all IP addresses was displayed unless the user also entered the mask parameter.
- Page 30 Enhancements Module Level Bridge By default, when the router receives a tagged packet on an Eth or VLAN interface CR00012620 and bridges it, the bridge strips out the packet’s VLAN tag. This enhancement enables you to set the bridge to instead retain the tag, by using off, no or false in the new command: set bridge stripvlantag={on|off|yes|no|true|false} The default is on.
- Page 31 Module Level CR00012850 File Previously, a user could delete the preferred software release and the current boot configuration file (by using the command delete file), without first setting CR00013109 a new preferred release or boot configuration file. Therefore, it was possible to accidentally delete these files, which caused network disruptions if the router or switch restarted.
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