A printable plain text version is also available.
Date: Thu, 28 Aug 2003 11:11:09 -0500 (EST)
From: ImageStream Support
Subject: Enterprise Linux 4.1.7 for routers available

Version 4.1.7 of ImageStream's Enterprise Linux is now available as an general
availability (GA) release for all ImageStream router customers.

This software release is provided at no charge to all ImageStream customers.
Version 4.1.7 is recommended for all customers for all customers who wish to 
upgrade to the latest available software release.

VERSION 4.1 RELEASES DEPRECATE THE IP-TAKEOVER PACKAGE.  CUSTOMERS USING
IP-TAKEOVER MUST USE THE STANDARDS-BASED VRRP IMPLEMENTATION INCLUDED IN 4.1.7.
IP-TAKEOVER IS NO LONGER AVAILABLE IN VERSION 4.1 RELEASES.

This release note documents commands and features added between Version 4.1.6
and Version 4.1.7.


----------------------------


New Features in Version 4.1.7


Support For PCI 201 ADSL, 431 T1/E1, and 530 Series T1/E1/J1 Cards Added

Version 4.1.7 includes SAND 3.5.22 Release 1.  This version of SAND includes
support for several new WAN cards for ImageStream's Industrial Series routers.
G.Lite, G.DMT, Annex A and Annex B/UR-2 ADSL CPE services are supported in this
release by the PCI 201-ADSL card.  Version 4.1.7 also includes support for the
new low-cost 431-TE integrated T1/E1 CSU/DSU card.  The 531-TEJ, 532-TEJ and
534-TEJ integrated T1/E1/J1 CSU/DSU cards are also supported by this release.
Support for ATM, IMA and multiplexing on the 530 series cards will be added in a
future release.


Asynchronous PPP Support Updated

Asynchronous PPP support in the dialout PPP package has been updated to support
PPPoE/PPPoA for ADSL. Support for ImageStream's PCI 201 ADSL interface card has
also been added to this package.


Aggressive ARP Cache Processing Added

Version 4.1.7 includes more aggressive ARP cache processing.  The new version
scans ARP entries for dead neighbors every second, instead of every 30 seconds
as in previous releases.  Dead neighbors are removed every 10 seconds rather
than every 60 seconds.  This more aggressive cache processing helps to prevent
ARP cache overflows caused by worm/virus infection-related port scanning
activity.



Bugs fixed in Version 4.1.7


The following bugs have been fixed in Version 4.1.7:


Failsafe ARP Cache Table Size Increased


Version 4.1.7 updates the Failsafe boot to use the identical ARP cache settings
as the primary image.  Previous versions of Failsafe incorrectly used smaller
ARP cache settings than the primary image.