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Dell PowerConnect M8428-k Release Notes

System firmware version 4.1.0.6.
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Dell™ PowerConnect™
7024/7048/7024P/7048P/7024F/7048R/7048R-RA/8024/8024F/
M6220/M6348/M8024/M8024-k
PowerConnect
4.1.0.6 Firmware Release Notes
Date: March 2011
System Firmware Version 4.1.0.6
Information in this document is subject to change without notice.
© 2003 – 2011 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo and PowerConnect are trademarks of Dell Inc; Intel and Pentium are registered trademarks and
Celeron is a trademark of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entity claiming the marks and names or their products. Dell
Inc disclaims any proprietary interest in trademarks and trade names other than its own. All rights reserved. This document may not, in whole or
in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form without the prior written
consent of Dell. Dell reserves the right to make changes without further notice to any products or specifications referred to herein to improve
reliability, functionality or design.
Reproduction, adaptation or translation without prior written permission is prohibited, except as allowed under the copyright laws.

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   Summary of Contents for Dell PowerConnect M8428-k

  • Page 1 Celeron is a trademark of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entity claiming the marks and names or their products. Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 2: Table Of Contents

    Table of Contents I n t r o d u c t i o n G l o b a l S u p p o r t F i r m w a r e S p e c i f i c a t i o n s H a r d w a r e S u p p o r t e d S u p p o r t M a t r i x A d d e d F u n c t i o n a l i t y i n t h i s R e l e a s e...
  • Page 3: Introduction

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes Introduction This document provides specific information for the Dell PowerConnect 7024/7048/7024P/7048P/7024F/7048R/7048R- RA/8024/8024F/M6220/M6348/M8024/M8024-k switches firmware version 4.1.0.6. It is recommended that this release note be thoroughly reviewed prior to installing or upgrading of this product. Global Support For information regarding the latest available firmware, release note revisions, or additional assistance, please visit support.dell.com.
  • Page 4: Hardware Supported

    Supported Firmware Functionality For more details regarding the functionality listed below, please refer to the Dell PowerConnect Series CLI Reference Guide and the Dell PowerConnect Series Configuration Guide. Firmware Downgrade Downgrading from 4.1.0.6 to a previous release is supported on the PowerConnect series switches.
  • Page 5: Support Matrix

    PowerConnect switch models. A check mark indicates support for the feature. All other features listed in the release notes are supported on all switches. Priority PoE+ iSCSI grEEEn Hot Swap WRED Feature/Switch Flow Optimization Ethernet Cards Control Dell PowerConnect M6220 Ethernet Switch   Dell PowerConnect M6348 Ethernet Switch      Dell PowerConnect 7024 Ethernet Switch ...
  • Page 6: Added Functionality In This Release

    Added Functionality in this Release This section contains a brief introduction to features added in this release that are new for at least one switch listed in the Hardware Supported section above.  IPv4-Only Mode Optimization PowerConnect switches allocate the maximum sizes for routing tables (and others, as applicable) for both IPv4 and IPv6.
  • Page 7 PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  Link Local Protocol Filtering Link Local Protocol Filtering blocks Cisco link local protocols from being flooded in the network. By default, PowerConnect switches process and respond to Cisco CDP packets. However, in networks where this capability is not desirable or other Cisco proprietary packets are flooded over the network, the administrator can disable flooding of Cisco link local protocols.
  • Page 8: Iscsi Optimization

    Detection of Dell EqualLogic arrays is keyed on receipt of the mandatory System Description TLV in the LLDP packet. Disabling LLDP will effectively disable Dell EqualLogic array detection. Dell EqualLogic arrays are required to be upgraded to firmware 5.0.2 or later in order to use the iSCSI Optimization feature.
  • Page 9: Email Alerting

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  Management IP Address Conflict Detection Management IP address conflict detection actively looks for duplicate IP address assignment and logs conflicts. Only the last identified IPv4 address conflict is retained for display by a show command. Administrators may examine the in- memory logs or the output from a SYSLOG server to identify the historical IP address conflicts.
  • Page 10  Switch Auditing Switch auditing enhances network security by logging sensitive administrative actions. Switch auditing logs the following actions:  Successful login  Unsuccessful attempt to login  Logout out from the switch  Timed out logout from the switch ...
  • Page 11 PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  Internal Authentication Server The PowerConnect Series switches support 802.1x authentication of network users from an internal authentication database. IAS users are given access to network resources. IAS users are not given management access to the switch. IAS users, once authenticated, can only pass frames across the switch.
  • Page 12: Changed Functionality In This Release

    Changed Functionality in this Release This section contains commentary on significant differences from previous releases of firmware on PowerConnect switches, e.g. the PCM6348/PCM6220/PCM8024/PC8024/PC8024F switches. Dell PowerConnect series switches closely conform to networking industry standard operational capabilities and administrative interfaces. The differences...
  • Page 13 PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  LACP Ports Inactive Until Attached Ports in a LAG configured to use LACP (dynamic LAG) remain inactive (discard received traffic) until they become attached to the LAG. LACP ports that are attached to a LAG will enter the discarding state if they become detached from the LAG for any reason.
  • Page 14  User Configurable CLI Banners Administrators may configure banners for the following: MOTD, login, and exec. The banners may consist of multiple lines of text. Each new line will consume an extra two characters (CR/LF) that count against the maximum length banner that can be configured.
  • Page 15: Dhcp Relay

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes This capability adds support for responding to pings by the VRRP master, but does not allow the VRRP Master to accept other types of packets. A configuration option controls whether the router responds to Echo Requests sent to a VRRP IP address.
  • Page 16  LLDP Enhancements Multiple Neighbor Support: Multiple neighbors are supported on a single LLDP interface. The number of recognized neighbors is limited to two per port or 834 LLDP neighbors on a fully stacked set of switches. There is no restriction on the number of neighbors connected to an LLDP port.
  • Page 17: Aaa Authentication

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  Dynamic VLAN Assignment Dynamic VLAN assignment is intended to support the connection of hosts to a router with enhanced levels of service, typically either security or QoS. This release supports dynamic VLAN assignment as assigned from the RADIUS server as part of port authentication.
  • Page 18: C H A N G E D F U N C T I O N A L I T Y I N T H I S R E L E A S

    Issues Resolved The following issues from previous releases have been corrected in this release. The issues listed here may have been discovered on any of the switches listed on the title page. Summary User Impact Workaround SSH crash - memPartAlloc: block too big Reduced switch functionality.
  • Page 19 PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes Summary User Impact Workaround SysUpTime is not being shown correctly Operator confusion regarding The correct variable is used to write during an SNMP walk (Poll interval 1sec) switch operation. SysUpTime Log messages need to be corrected on ip Operator confusion regarding Interface representations in log messages dhcp snooping rate limit scenario.
  • Page 20 Summary User Impact Workaround Max number of OSPF neighbors not User confusion over switch The maximum number of neighbors is supported operations. supported. Cable fault distance not getting displayed User confusion over switch The fault distance is displayed in the web operations.
  • Page 21 New syntax has been added to the packet" option configuration. Possible security management ACL to allow the any issue. specification for the service type. SNMP support for Dell-LAN-TRAP-MIB User frustration over switch The Dell-LAN-TRAP-MIB is supported configuration. System Firmware Version 4.1.0.6 Page 19...
  • Page 22: C L I R E F E R E N C E G U I D E U P D A T E

    CLI Reference Guide Updates The Dell PowerConnect CLI Reference Guide is completely new. Users are referred to the Dell PowerConnect Configuration Migration White Paper for information on how to migrate configurations from previous releases of Dell PowerConnect firmware to the 4.0.0.6 Dell PowerConnect firmware.
  • Page 23: K N O W N I S S U E

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes Known Issues Summary User Impact Workaround None – system assumes 5.8W average loss DUT delivers more DUT may draw more power than negotiated at power than the PD short cable lengths. PD may draw more power due to cable length and delivers 5.8W extra requested via LLDP in than negotiated, but power loss due to cable...
  • Page 24 Summary User Impact Workaround Non-configuration file Switch does not utilize invalid configuration file In this case, an invalid configuration file was getting loaded to information. Earlier versions of startup-config downloaded (on purpose) via the web. When startup-config through are not available for fallback when overwritten the switch rebooted, it detected that the HTTP.
  • Page 25: K N O W N R E S T R I C T I O N S A N D L I M I T A T I O N

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes Known Restrictions and Limitations Layer 2 802.1x Authentication Description User Impact Windows Vista® Authentication The Windows Vista® client could fail to authenticate properly when the option to cache user credentials is selected. Workaround: In Control Panel  Network Connections, right-click on the desired Local Area Connection and select Properties.
  • Page 26 Layer 3 IPv6 MTU Description User Impact IPv6 Fragmentation Support The switch is not fragmenting the datagram and forwards even when the IP MTU of the forwarding interface is set to a lower value (than the datagram size). IPv6 frames are not allowed to be fragmented. IPv6 frames forwarded in silicon can be up to the lesser of 9216 octets or the link MTU.
  • Page 27: M A N A G E M E N

    PowerConnect M6220/M6348/8024/8024F/M8024/M8024-k/ 7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes Management Description User Impact radius-server mode commands do not None of the commands in radius-server mode support a "no" form except for the have a "no" form. msgauth command. To reset values to the default, delete the server entry and add it back.

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