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Software Release V4.0.0
Part No. 311523-C Rev 00
March 2001
4401 Great America Parkway
Santa Clara, CA 95054
Release Notes for the
BayStack 450 10/100/1000
Series Switch
*311523-C Rev 00*
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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 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 Networks Inc. Tra
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Licensee may grant permission to its consultants, subcontractors, and agents to use the Software at Licensee’s facility, provided they have agreed to use the Software only in accordance with the terms of this license. 3. Limited warranty. Nortel Networks warrants each item of Software, as delivered by Nortel Networks and properly installed and operated on Nortel Networks hardware or other equipment it is originally licensed for, to function substantially as described in its accompanying user
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reason, Licensee will immediately destroy or return to Nortel Networks the Software, user manuals, and all copies. Nortel Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license. 8. Export and Re-export. Licensee agrees not to export, directly or indirectly, the Software or related technical data or information without first obtaining any required export licenses or other governmental approvals. Without limiting the foregoing, Licensee, o
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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 number 309978-D Rev 00). The information in these release notes supersedes the applicable information in the user guide. These release notes contain the following sections: • “Upgrading the BayStack 450 Firmware” (page 1) • “The Upgrade Process” (page 2) • “Creating a
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Release Notes for the BayStack 450 10/100/1000 Series Switch 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 code image must be downloaded first, before you download the agent image. If the agent image (the operational software) is downloaded before the boot code image, the software may not be programmed into the BayStack
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The Upgrade Process 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 firmware and software versions, and the Interoperability Software Version Number (ISVN) is correct in the sysDescr field of the System Characteristics screen: -- The correct firmware version is: FW:V1.48 -- The correc
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Release Notes for the BayStack 450 10/100/1000 Series Switch Creating a Mixed Stack When creating a mixed stack that includes one or more more Business Policy * 1 Switch 2000 switches , complete the following steps: 1. Upgrade your BayStack 450 switches and your BayStack 410-24T switches to software version V4.0.0: Confirm that all of the switches you intend to use in your new stack have the same ISVN numbers. Upgrade all switches that have incorrect ISVN numbers (see your switch’s User’s Gu
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Accessing the Software Images Accessing the Software Images You can access the software image files directly from the Internet: Note: When upgrading the switch, you must download two images, the boot code image (the firmware) and the agent image (the software). 1. Go to www25.nortelnetworks.com/software. 2. Under the Switching Products (or Data and Internet) heading, select BayStack Switches - 450 10/100/1000 Switch, then click the Go button. 3. Under the Operational Software heading, click o
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Release Notes for the BayStack 450 10/100/1000 Series Switch • 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 running software versions earlier than software version V2.0, you must upgrade your switch to software version V4.0.0 through a port that is configured as an untagged member of VLAN 1. (Software versions V2.0 and lat
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New Features 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 services through that port. Your BayStack 450 switch serves the role of "Authenticator" in an EAPOL protected network. • Gigabit Interface Converter (GBIC) MDA support -- The new Nortel Networks 450-1GBIC MDA is supporte
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Release Notes for the BayStack 450 10/100/1000 Series Switch 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 hardware (HW: RevB in the System Characteristics screen), does not support the BayStack 450-2M3/2S3 MDAs (ATM MDAs). • Limited support for EAPOL TLS Certificates TLS certificates are supported in mixed stacks only. M
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Known Restrictions • 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 ports of equivalent speeds when configuring a trunk. The MultiLink Trunk algorithm distributes connections across all of the available links in the trunk, regardless of speed. • Monitoring outgoing frames on trunk mem
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Release Notes for the BayStack 450 10/100/1000 Series Switch • IEEE 802.1D spanning tree parameters Spanning tree parameters cannot be configured from the console interface (CI) menus and screens. Configuration support is available through the Bridge MIB using Simple Network Management Protocol (SNMP). Refer to RFC 1493 for more information. • The spanning tree configuration must be the same on both ends of a MultiLink trunk. • Spanning tree port participation The Fast Learning value (used w
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Known Restrictions • RMON Alarms and Event entries RMON Alarms and Event entries are not saved to nonvolatile random access memory (NVRAM). When a reset condition or power-down sequence occurs, the entries are not preserved. This conforms to the current RFC 1757 standard. All RMON Alarms and Events must be reentered. • RMON Event Log table’s secondary index The RMON Event Log table’s secondary index is not incremented when all of the table’s entries have been used. In this case, the existing
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Release Notes for the BayStack 450 10/100/1000 Series Switch -- ICMP echo (PING) requests do not receive responses. -- All IP-related processes fail temporarily. • Tagged bridge protocol data units (BPDUs) Tagged BPDUs are not supported in this version. • Network interface controllers (NICs) The MultiLink Trunking feature supports only multiport NICs that are configured as a single MAC address, single IP address entity. • Downgrading a switch or stack to a software version earlier than software
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Known Problems • 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 support the BayStack 450-12F switch. • Software versions earlier than V3.1.0 do not support: -- Mixed stacks that include Business Policy Switches -- BayStack 450-2M3/2S3 (ATM MDAs). • Stack reset when creating the first D
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Release Notes for the BayStack 450 10/100/1000 Series Switch • 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 controller (NIC), the switch learns invalid MAC addresses whenever autonegotiation for a gigabit MDA port is enabled (the invalid MAC addresses eventually age out). This problem occurs only when you reset the switch (
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1000BASE-LX Connectors 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. Note: The transceiver must be mode conditioned externally via a special offset SMF/MMF patch cord for 1000BASE-LX multimode applications. The offset SMF/MMF patch cord allows the same transceiver to be used for both multimode and single-mode fiber. See your Nortel Networ
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Release Notes for the BayStack 450 10/100/1000 Series Switch Network Management Table 1 lists the supported network management applications that are available: Table 1. Supported Network Management Applications BayStack 450 Software Versions V2.0.0/V2.0.1 V3.0.0 V3.1.0 V4.0.0 Application (HW Rev B, D, L) (HW Rev B, D, L) (HW Rev B, D, L) (HW Rev B, D, L) NMS 9.0 Partial support only Partial support only Partial support only Partial support only (see Note) (see Note) (see Note) (see Note) NMS 9.0
