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9. New Known Limitations
Hitless upgrade will fail from 4.2.1 or previous releases to 4.2.3 release. So users are requested to use
normal upgrades for this particular case.
For other known issues, please refer to the product release notes and technical documentation available from the
Nortel Technical Support web site at: http://www.nortel.com/support.
Copyright © 2007 Nortel Networks Limited - All Rights Reserved. Nortel, Nortel Networks, the Nortel logo, Globemark, and
Alteon are trademarks of Nortel Networks Limited.
The information in this document is subject to change without notice. The statements, configurations, technical data, and
recommendations in this document are believed to be accurate and reliable, but are presented without express or implied
warranty. Users must take full responsibility for their applications of any products specified in this document. The information in
this document is proprietary to Nortel.
To access more technical documentation, search our knowledge base, or open a service request online, please visit Nortel
Technical Support on the web at
©2007-2008 Nortel Networks Limited
http://www.nortel.com/support
.
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