FORE ES-2810 Release Notes
Contents
1. A and Switch B in VLANI The Spanning Tree Protocol forwards VLANI s traffic on one path and blocks the other path However in VLAN2 Spanning Tree incorrectly blocks both paths No traffic from VLAN2 flows between Switch A and Switch B because the SIM can be a member of only one VLAN with ATMSTP enabled NOTE that this is only true when both switches have SIM s installed If one switch has a matrix module installed everything works properly ES 2810 Ethernet Switch Release Notes Page 9 3 8 Known Changes to the User s Manual Version Number The firmware version number on the cover page should read 2 3x Installing a Module Section 1 6 4 Replace the text in step 4 with 4 Insert the Matrix Module Stack Interface Module or 1000SX Module into Slot A you can insert the 10 100TX and 100FX Modules in either slot 5 Place your thumbs just beneath the screws on the front panel of the module and push it in until it clicks in to place Secure the module using the retaining screws If you push the module in incorrectly you may find the module will not connect with the motherboard 3 9 Known Omissions in the User s Manual Warning When Using IGMP Pruning Section 4 3 1 Add the following text to the Warning IGMP pruning only works in the man agement VLAN This means that IGMP pruning has no effect on VLANs which have not been set up with IP routing Approvals for Japan Table 6 2 Delete VCCI Class 12. ITE from the column labelled Standard in the Emission row Internet Explorer 4 0 Microsoft Internet Explorer must be installed on the PC that is running FORE Stack View 2 0 3 Internet Explorer is included on the FORE Stack View CD Page 10 ES 2810 Ethernet Switch Release Notes 4 0 Link Aggregation The following notes apply to link aggregation e Port trunking can only be used with ports that are members of the system VLAN e The Spanning Tree Protocol will block a 2 port trunk group in fa vor of a four port trunk group e Failure of one link in a 4 port group will aggregate the remaining traffic over only 2 of the remaining ports A 3 port trunk link is not supported e Ports cannot be aggregated across switches Consecutive ports from the same switch only may be combined in trunk groups e The rule for assigning ports to trunk groups is A4port aggregation in ES 2810 must start on a 4 port bound ary i e Port 1 5 9 13 or 21 A 2 port aggregation can start on any odd port number i e 1 3 5 7 9 11 e Path or Link determination is calculated in the following way 2Port XOR of the SMAC and DMAC Look at one least sig nificant bit 0 Port 1 of aggregation 1 Port 2 of aggregation 4Port XOR of the SMAC and DMAC Look at least two sig nificant bits 00 Port 1 of aggregation 01 Port2 10 Port3 11 Port4 ES 2810 Ethernet Switch Release Notes Page 11 5 0
3. the most recent firmware version 1 Remember which switch is connected to your PC and upgrade this switch last 2 Install FORE Stack View 2 0 3 Open one of the other switches and manage it as a single device Select Manage as a single device in any of the dialog boxes 4 Download the new software from the CD or the FORE TACTics Web Page as described in Contacting Technical Support on page 12 5 Repeat steps 3 and 4 for the each of the other switches attached to the Matrix Module 6 Connect this device to the Matrix Module You can now manage all the devices attached to the Matrix Module as a stack ES 2810 Ethernet Switch Release Notes Page 7 3 5 User Discovery The User Discovery option on the Device menu is not active in this release of FORE Stack View Although a dialog box appears when the option is chosen settings and values entered in the dialog box have no affect 3 6 Before Using IGMP Pruning IGMP pruning should always be enabled on the ES 2810 when it is connected be tween the device receiving the multicast traffic and an IGMP enabled routing de vice Keep the following in mind when the ES 2810 is located between the multicast transmitter and the IGMP routing device e If the port on the routing device cannot explicitly join the IGMP multicast group IGMP pruning should be disabled on the ES 2810 e IGMP pruning can be enabled on the ES 2810 if the router itself can be configured so that the r
4. 5 Mbytes free disk space SVGA color display 800 x 600 resolution minimum 16 colors 1024 x 768 in 256 col ors recommended One CD ROM drive Two or three button Windows compatible mouse and driver Page 6 ES 2810 Ethernet Switch Release Notes 3 0 Known Problems and Limitations 3 1 Installing Media Modules Media modules are not designed to be installed in or removed from the switch while it is in operation You must power off the switch before attempting to install a media module 3 2 Auto negotiation Compatibility Issues Some devices do not support auto negotiation fully If you do not have a link after connecting the device to a switch manually configure speed 10Mbps or 100Mbps and duplex mode Full or Half on both the device and the switch to establish a link 3 3 Known Software Errors A packet with CRC errors and a length of 64 bytes is counted as a runt In the un likely event of a large number of 100Mbps packets being received on a 10Mbps port using flow control a small number of packets may be lost from traffic on other switch ports Any port operating at 10Mbps that is receiving frames from a 1000Mbps port will drop all of the frames 3 4 Connecting to a Matrix Module If you want to attach this switch to a Matrix Module which is attached to other switches with different firmware for example version 2 2x you must upgrade the firmware of the other switches to version 2 3x To upgrade the other switches to
5. Contacting Technical Support In the U S A customers can reach FORE Systems Technical Assistance Center TAC using any one of the following methods 1 Select the support link from FORE s World Wide Web page http www fore com 2 Send questions via e mail to support fore com 3 Telephone questions to the TAC at 800 671 FORE 3673 or 724 742 6999 4 FAX questions to the TAC at 724 742 7900 Technical support for customers outside the United States should be handled through the local distributor or via telephone at the following number 1 724 742 6999 No matter which method is used to reach the TAC customers should be ready to provide the following e A support contract ID number e The serial number of each product in question e All relevant information describing the problem or question Page 12 ES 2810 Ethernet Switch Release Notes
6. HOJNE SYSTEMS ES 2810 Ethernet Switch Release Notes Firmware Version 2 3x MANU0333 02 Revision A November 1998 Legal Notices Copyright 1998 by FORE Systems Inc FORE Systems Inc makes no representations or warranties with respect to the contents or use of this manual and specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose Further FORE Systems Inc reserves the right to revise this publication and to make changes to its content at any time without obligation to notify any person or entity of such revisions or changes All rights reserved No part of this work covered by copyright may be reproduced in any form Reproduction adaptation or translation without prior written per mission is prohibited except as allowed under the copyright laws The informa tion in this document is subject to change without notice You must reproduce and maintain the copyright notice on any copy you make or use of the Programs U S Government Restricted Rights If you are licensing the Software on behalf of the U S Government Government the following provisions apply to you If the Software is supplied to the Department of Defense DoD it is classified as Commercial Computer Software under paragraph 252 227 7014 of the DoD Sup plement to the Federal Acquisition Regulations DFARS or any successor reg ulations and the Government is ari np o
7. Notes 1 0 General Description of Release The ES 2810 Switch has twenty four 10 100Base TX RJ 45 ports and one Console port You can install optional modules in the front slots 1 1 For More Information The README TXT File Refer to the README TXT file on the FORE Stack View CD supplied with the switch The On Line Manual The on line manual contained on the FORE documentation CD included with the switch contains in depth information about the ES 2810 The file is in Adobe Ac robat format If you already have the Acrobat Reader installed on your machine you can simply run Acrobat and open the PDF file on the documentation CD Or you can install Acrobat using the files and directions on the FORE documentation CD The FORE Website For the latest technical documentation and release notes for the ES 2810 and other FORE products visit the FORE technical manual website at http www fore com products manuals htm The website provides manuals in Portable Document Format PDF They can be viewed or printed using Adobe Acrobat Version 3 0 Readers ES 2810 Ethernet Switch Release Notes Page 5 2 0 System Requirements If you are using FORE Stack View for Windows you must use version FORE Stack View version 2 0 or later 2 1 Workstation Requirements for FORE s Stack View A PC with an Intel486 microprocessor or Pentium D processor recommend ed Minimum 8 Mbytes RAM 16 Mb or more recommended Hard disk with
8. esseeeeeseeeees 6 Workstation Requirements for FORE s Stack View 0 c0 6 Known Problems and Limitations cccsssseeceeeeeeeeeeeees 7 Installing Media Modules cc ceeeeseeeeeenceeeeeeeeneeeeeeenaaeeeeeeeaaes 7 Auto negotiation Compatibility Issues ecceeeeeeessteeeeeeeaes 7 Known Software EOS neissent iriiria iieii 7 Connecting to a Matrix MOdule cecceeeeeeeeeeeeeeeeeeeeeeeeeeneees 7 User DISCOVELY necurate iii cee E EN AA 8 Before Using IGMP Pruning cccccceeeeeeeeseceeeeeeeeesaeeeeeeeeeaes 8 ATM ELANS and Spanning Tree cccccecseeeeeeeeeeeteeeeeeeeteeees 9 EXAMple screech iittala he ee fs ee 9 Known Changes to the Users Manual cccssscceeessteeeeees 10 Version Number cccccccceeceeeeeeeececeeceeeeeeeeeseeeeenenaeeeeeeeeess 10 Installing a Module Section 1 6 4 ccccccsseceeeeeesteeeeees 10 Known Omissions in the User s Manual cccccccsssseeeeeees 10 Warning When Using IGMP Pruning Section 4 3 1 10 Approvals for Japan Table 6 2 cccccecceeeeeseestceeeeeeeeeees 10 Internet Explorer 4 0 0 ecccceeeesececeeeeeeceeeeeeeeeaeeeeeneeeeeenenees 10 Link Aggregation c sccccceseeeeceeeeeneeeeeeeeneeeseeeeeneeseeeesneneeeeenens 11 Contacting Technical Support ccseeccsssseeeeseeeeesseeeeeeeees 12 ES 2810 Ethernet Switch Release Notes iii ES 2810 Ethernet Switch Release
9. nly the license rights ellis herein the license rights customarily provided to non Government users If the Software is supplied to any unit or agency of the Government other than DoD it is classified as Restricted Computer Software and the Government s rights in the Software are defined in paragraph 52 227 19 of the Federal Acquisition Regulations FAR or any successor regulations or in the cases of NASA in paragraph 18 52 227 86 of the NASA Supplement to the FAR or any successor ree aion Trademark Notices FORE Systems ForeRunner ForeView ForeThought ForeRunnerLE PowerHub and AVA are registered trademarks of FORE Systems Inc CellPath EdgeRunner Zero Hop Routing MSC TNX Voice Plus StreamRunner Universal Port ASN CellStarter Intelligent Infrastructure I2 NetPro FramePlus ForeRunnerHE ASX Network Of Steel and Networks Of Steel are trademarks of FORE Systems Inc All other brands or product names are trademarks of their respective holders 1 0 2 0 3 0 4 0 5 0 General Description Of Release ccscccssseeeeeeesseeseeeeeeeeees 5 For More Information cccccccecceeeeeeeececeneceeeeeeeeeeeeeeeeeneeaaees 5 The README TXT File ecececceceesseeeeeeeeneeeeessensaeeeeeeenaes 5 The On Line Manual ccccccccsecceeeeseeeeeeeeeseeeeeessnaeeeeseeaas 5 The FORE Wesle esrin rrn eR ARANA TAR nR 5 System Requirements ccccsccecsseeeeeseeeeeseeseseeeeeesees
10. outer port connected to the ES 2810 ex plicitly becomes a member of the multicast group via IGMP join messages Page 8 ES 2810 Ethernet Switch Release Notes 3 7 ATM ELANs and Spanning Tree The Spanning Tree Protocol will incorrectly block paths when you have multiple VLANs configured on ports connecting switches connected by Stack Interface Modules and you are using ATM ELANSs This occurs when both e Both switches have a SIM installed no matrix module is used and are connected back to back e The ATM ELAN feature enabled The traffic on the VLAN very likely the system or management VLAN for which the SIM is a member will forwarded but the traffic for the other VLANs will be blocked incorrectly In the VLAN containing the SIM ports if there are multiple paths between the two switches Spanning Tree will correctly block the lower priority path However if there are additional VLANs configured on ports connecting the two switches Spanning Tree will incorrectly block those paths Example For example on Switch A and Switch B connected by a SIM a half stack there are two VLANs configured VLAN1 and VLAN2 e Two ports on Switch A are in VLAN and are attached to two ports on Switch B in VLAN1 e VLANI includes the SIM ports e Two other ports on Switch A are in VLAN2 and attached to two ports on Switch B in VLAN2 e The ATM ELAN option is enabled in VLAN Routing Setup In this arrangement two paths exist between Switch
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