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ii 311523-C Rev 00 Copyright © 2001 Nortel Networks All rights reserved. March 2001. 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 ...

Page 5 - Introduction; 50 Switch that may not be included in the related user guide; Upgrading the BayStack 450 Firmware

311523-C Rev 00 1 Introduction These release notes contain important information about software version V4.0.0 for the BayStack * 450 Switch that may not be included in the related user guide Using the BayStack 450 10/100/1000 Series Switch (Part number309978-D Rev 00). The information in these rele...

Page 6 - The Upgrade Process; Download the boot code image.; Upgrading to Software Version V4.0.0 in a Mixed Stack; When you upgrade a mixed stack

Release Notes for the BayStack 450 10/100/1000 Series Switch 2 311523-C Rev 00 The Upgrade Process Upgrading the BayStack 450 switch to software version V4.0.0 is a two-step process: 1. Download the boot code image. 2. Download the agent image. To properly upgrade the BayStack 450 switch, the boot c...

Page 7 - Important Considerations; When you upgrade your BayStack 450 switch:; The correct ISVN number is: 2; Recovering from a Failed Upgrade; When you upgrade to software version software version V4.0.0, you

The Upgrade Process 311523-C Rev 00 3 Important Considerations When you upgrade your BayStack 450 switch: • Download two images (the boot code image and the agent image). The new boot code image must be downloaded before the agent image is downloaded. • After upgrading your units, verify that the fi...

Page 8 - Creating a Mixed Stack; switches; Use the Reset command to reset all Business Policy Switches.

Release Notes for the BayStack 450 10/100/1000 Series Switch 4 311523-C Rev 00 Creating a Mixed Stack When creating a mixed stack that includes one or more more Business Policy Switch 2000 * switches 1 , complete the following steps: 1. Upgrade your BayStack 450 switches and your BayStack 410-24T sw...

Page 9 - Accessing the Software Images; When upgrading the switch, you must download two images, the boot

Accessing the Software Images 311523-C Rev 00 5 Accessing the Software Images You can access the software image files directly from the Internet: 1. Go to www25.nortelnetworks.com/software. 2. Under the Switching Products (or Data and Internet) heading, select BayStack Switches - 450 10/100/1000 Swi...

Page 10 - During the load process, the ports are configured as follows:; Nortel Networks Online Documentation

Release Notes for the BayStack 450 10/100/1000 Series Switch 6 311523-C Rev 00 • The switch cannot be upgraded to software version V4.0.0 through a port that is configured for tagged traffic unless your switches are currently running software version V2.0 or later. If your switches are currently run...

Page 11 - New Features; The following problems are corrected with software version V4.0.0:

New Features 311523-C Rev 00 7 New Features The following new features are provided with software version V4.0.0: • Extensible Authentication Protocol Over LANs (EAPOL) -- Allows future operating systems to authenticate a user on a given port, and then allows that user access to other network servic...

Page 12 - Known Restrictions

Release Notes for the BayStack 450 10/100/1000 Series Switch 8 311523-C Rev 00 Known Restrictions The following known restrictions apply to software version V4.0.0 (and earlier versions): • Software version V4.0.0 does not support IGMP-v2 leave messages. • Software version V4.0.0, running on Rev B h...

Page 13 - MultiLink Trunking

Known Restrictions 311523-C Rev 00 9 • MultiLink Trunking MultiLink Trunking allows you to group ports of varying speeds (for example, you can group 10 Mb/s, 100 Mb/s, and 1000 Mb/s ports in any combination). Although this is a valid configuration, Nortel Networks recommends that you only group port...

Page 17 - Downgrading your BayStack 450-12F switch; Known Problems

Known Problems 311523-C Rev 00 13 • Downgrading your BayStack 450-12F switch You cannot downgrade your BayStack 450-12F switch or a stack configuration that contains a BayStack 450-12F switch, to a software version earlier than software version V1.3. Software versions earlier than V1.3 do not suppor...

Page 18 - Connecting to Accelar Gigabit Ports

Release Notes for the BayStack 450 10/100/1000 Series Switch 14 311523-C Rev 00 • When mirroring a single MLT member, the monitor port will receive all of the unknown unicast traffic that is transmitted over the entire MLT. • When you connect the BayStack 450 switch to an Alteon network interface co...

Page 19 - Do not connect multimode cables directly into the 1000BASE-LX

1000BASE-LX Connectors 311523-C Rev 00 15 1000BASE-LX Connectors The 1000BASE-LX (gigabit) MDAs use a longwave 1300 nm, fiber optic transceiver to connect devices over single-mode (5 km/3.1 mi) or multimode(550 m/1,805 ft) fiber optic cables. The optical performance of this transceiver cannot be gua...

Page 20 - Network Management

Release Notes for the BayStack 450 10/100/1000 Series Switch 16 311523-C Rev 00 Network Management Table 1 lists the supported network management applications that are available: Table 1. Supported Network Management Applications BayStack 450 Software Versions Application V2.0.0/V2.0.1 (HW Rev B, D,...

Page 21 - OIT Support for Multiple Software Versions; Optivity NMS 9.0 provides partial support only for these switch

Network Management 311523-C Rev 00 17 OIT Support for Multiple Software Versions The Optivity Integration Toolkit (OIT) files are designed to support specific versions of the BayStack 450 switch software. If your networking environment requires you to support multiple BayStack software versions (for...