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 Series Release File Date Size (bytes) GUI file AR415S, AR440S, AR441S, AR442S, AR450S AR400 54281-02.rez 5 September 06 4673896 415s_281-02_en_d.
Enabling and Installing this Release 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.
Features in 281-02 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. ■ “-” in a white column indicates that the issue did not apply to that product series. ■ a grey-shaded column indicates that Version 281-02 was not released on that product series.
AT-9900 AT-9800 When a BRI or PRI PIC was installed on the router, an issue with internal memory handling occasionally caused the router to reboot. AT-8948 / x900-48 1 AT-8700XL Core AT-8600 CR00013736 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 4 AR400 Features in 281-02 Y - Y - - - - - - - - - - - - Y - - - - This issue has been resolved.
AT-9900 AT-9800 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.
AT-9900 AT-9800 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. AT-8948 / x900-48 2 AT-8700XL OSPF AT-8600 CR00013359 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 6 AR400 Features in 281-02 Y - Y - - Y - - - - Y - Y - - - - - - - This issue has been resolved.
AT-9900 AT-9800 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. AT-8948 / x900-48 3 AT-8700XL Core AT-8600 CR00011710 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 7 AR400 Features in 281-02 Y - Y - - - - - - - Y - Y - - - - - - - This issue has been resolved.
AT-9900 AT-9800 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.
AT-9900 AT-9800 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. AT-8948 / x900-48 3 AT-8700XL SSH AT-8600 CR00013714 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 9 AR400 Features in 281-02 Y - Y - - Y - - - - - - Y - - - - - - - This issue has been resolved.
AT-8948 / x900-48 AT-9900 AT-9800 After OSPF deleted an AS-External LSA, it sometimes sent an unnecessary LSA with no changes. AT-8700XL 4 AT-8600 OSPF AT-8800 CR00013569 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 10 AR400 Features in 281-02 Y - Y - - Y - - - - This issue has been resolved. CR00013683 File 4 Japanese users can now delete the router or switch’s preferred software release and the current boot configuration file.
Features in 281-02 11 AT-8948 / x900-48 AT-9900 AT-9800 Previously, it was not possible to set the MTU for an ATM interface. AT-8700XL - AT-8600 ATM AT-8800 CR00013126 Description Rapier i Level AR750S / AR770S Module AR7x5 CR AR400 Enhancements Y - - - - - - - - - Y - Y - - - - - - - Y - Y - - Y - - - - This enhancement makes it possible to now do so. The MTU can be set to values between 256 bytes and 1600 bytes, inclusive.
AT-9900 AT-9800 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. AT-8948 / x900-48 - AT-8700XL SHDSL AT-8600 CR00013447 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 12 AR400 Features in 281-02 Y - - - - - - - - - Y - Y - - Y - - - - - - - - - Y - - - - This issue has been resolved.
Features in 281-01 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. ■ “-” indicates that the issue did not apply to that product series.
AT-9900 AT-9800 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.
Features in 281-01 15 AT-8948 / x900-48 AT-9900 AT-9800 The Bridge cannot be configured to bridge PPPoE packets from an Ethernet 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.
CR Module Level Description AR7x5 AR750S / AR770S Rapier i AT-8800 AT-8600 AT-8700XL AT-8948 / x900-48 AT-9900 AT-9800 16 AR400 Features in 281-01 CR00011434 File 2 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.
AT-9900 AT-9800 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.
AT-8948 / x900-48 AT-9900 AT-9800 Decrypting a large IPsec ESP packet sometimes caused the router or switch to reboot. AT-8700XL 2 AT-8600 IPsec, ENCO AT-8800 CR00012697 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 18 AR400 Features in 281-01 Y Y Y Y Y - - - - - This issue has been resolved. CR00012710 Core 2 Soft errors can generate exceptions that would cause the router or switch to reboot.
AT-8948 / x900-48 AT-9900 AT-9800 The following issues occurred with sending log messages to an asynchronous port: AT-8700XL 2 AT-8600 ASYN, Log AT-8800 CR00012846 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 19 AR400 Features in 281-01 Y Y Y Y Y Y Y Y Y Y - - - - - - - Y Y - ■ The log messages output on an asynchronous port were corrupt. ■ When log messages were output to an asynchronous port, that port was (correctly) locked.
AT-8948 / x900-48 AT-9900 AT-9800 Entering the command create enco key=number ip=? caused the router or switch to reboot. AT-8700XL 2 AT-8600 ENCO AT-8800 CR00012868 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 20 AR400 Features in 281-01 Y Y Y Y Y Y Y Y Y Y - - - - - - - Y Y - Y - Y - - - - - - - Y Y Y Y Y - - Y Y Y Y Y Y - - - - - - - Y - - - - - - - - - This issue has been resolved.
AT-9900 AT-9800 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.
AT-9900 AT-9800 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.
CR Module Level AR7x5 AR750S / AR770S Rapier i AT-8800 AT-8600 AT-8700XL AT-8948 / x900-48 AT-9900 AT-9800 23 AR400 Features in 281-01 CR00012309 WAN load balancer 3 WAN load balancer performance has been improved, especially through improvements to the session hashing mechanism.
AT-9900 AT-9800 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.
AT-9900 AT-9800 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.
AT-9900 AT-9800 The system LED did not indicate when an internal power supply fault occurred. AT-8948 / x900-48 3 AT-8700XL Core AT-8600 CR00013243 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 26 AR400 Features in 281-01 - - Y - - - - - - - Y Y Y Y Y Y Y Y Y Y - - - - - - - Y Y - Y Y Y Y Y - - Y Y Y Y Y Y Y Y Y Y Y Y Y This issue has been resolved. The system LED now flashes 3 times to indicate a fault.
Features in 281-01 27 AT-9900 AT-9800 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. AT-8948 / x900-48 4 AT-8700XL GUI AT-8600 CR00010159 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR AR400 Level 4 - - - - - - - - - Y Y Y Y Y Y - - - - - - - - - - - - Y Y - This issue has been resolved.
AT-8948 / x900-48 AT-9900 AT-9800 The “?” help description for the enable command stated that the parameter rtelnet would “Disable the use of remote telnet to control an asyn port”.
AT-9900 AT-9800 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. AT-8948 / x900-48 4 AT-8700XL L2TP AT-8600 CR00012916 AT-8800 Description Rapier i Level AR750S / AR770S Module AR7x5 CR 29 AR400 Features in 281-01 Y Y Y Y Y - - Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y - - Y Y Y Y Y Y Y Y Y Y Y Y Y This issue has been resolved.
Features in 281-01 30 AT-9900 AT-9800 By default, when the router receives a tagged packet on an Eth or VLAN interface and bridges it, the bridge strips out the packet’s VLAN tag.
AT-9800 CR00013109 AT-9900 Previously, a user could delete the preferred software release and the current boot configuration file (by using the command delete file), without first setting 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. If the router or switch restarted after the user had deleted the preferred release, it booted from the fallback software.
