Enterasys SSIM-H2-02 User manual

SSIM-H2-02
Fast Ethernet - Translational Switch
SmartStack Interface Module
Installation
and
User Guide

i
Notice
Notice
Cabletron Systems reserves the right to make changes in specifications and other
information contained in this document without prior notice. The reader should in all
cases consult Cabletron Systems to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is subject to change
without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY
INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES
WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS) ARISING
OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED
IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.
© October 1999 by:
Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867
All Rights Reserved.
Order Number: 9032962-01
(OC-7063 v. 1.1, 710001816)
SmartStack is a trademark of Cabletron Systems, Inc.
CompuServe is a registered trademark of CompuServe, Inc.
i960 microprocessor is a registered trademark of Intel Corp.
Ethernet is a trademark of Xerox Corporation.

ii
Notice
FCC Notice
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment uses, generates, and can radiate radio
frequency energy and if not installed in accordance with the operator’s manual, may
cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause interference in which case the user will be required to
correct the interference at his own expense.
WARNING: Changes or modifications made to this device which are not expressly
approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
VCCI Notice
This is a Class A product based on the standard of the Voluntary Control Council for
Interference by Information Technology Equipment (VCCI). If this equipment is used in
a domestic environment, radio disturbance may arise. When such trouble occurs, the user
may be required to take corrective actions.
Industry Canada Notice
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la class A prescrites dans le Règlement sur le
brouillage radioélectrique édicté par le ministère des Communications du Canada.

iii
Notice
Declaration of Conformity
Addendum
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Cabletron Systems, Inc.
Manufacturer’s Address: 35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name: Mr. J. Solari
European Representative Address: Cabletron Systems Limited
Nexus House,
Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Equipment Type/Environment: Networking Equipment, for use
in a Commercial or Light
Industrial Environment.
We the undersigned, hereby declare, under our sole responsibility, that the equipment
packaged with this notice conforms to the above directives.
Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari
Full Name Full Name
Principal ComplianceEngineer Managing Director -E.M.E.A.
Title Title
Rochester, NH,USA Newbury, Berkshire,England
Location Location

iv
Notice

v
SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide
Table of Contents
1. Introduction 1
MIB Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Installation 5
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . 6
Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . 7
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . 8
TFTP Download . . . . . . . . . . . . . . . . . . . . . . . . 8
Serial Download . . . . . . . . . . . . . . . . . . . . . . . . 9
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-On Self Test . . . . . . . . . . . . . . . . . . . . . . . 11
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Default Configuration. . . . . . . . . . . . . . . . . . . . . 12
3. Configuration 13
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Ports, Port Groups and VLANs. . . . . . . . . . . . . . . . 14
TS Virtual Ports and VLAN Tagging . . . . . . . . . . . . . 15
Virtual Port Restriction . . . . . . . . . . . . . . . . . . . . 15
Ring Number Restriction . . . . . . . . . . . . . . . . . . . 15
Bridging Modes. . . . . . . . . . . . . . . . . . . . . . . . . . 16
Source Routed Switching (SRS) Operation Mode . . . . . . 16
Source Routed Transparent Bridging (SRT) Mode. . . . . . 16
Source Routed Bridging (SRB) Mode . . . . . . . . . . . . 17
Redundant Connections to Fast Ethernet Network . . . . . . . 19
Network Scenarios . . . . . . . . . . . . . . . . . . . . . . 19
Spanning Tree Configuration. . . . . . . . . . . . . . . . . 21
Technical Background . . . . . . . . . . . . . . . . . . . . 24
General Guidelines. . . . . . . . . . . . . . . . . . . . . . . . 26
Navigating Within the Menus. . . . . . . . . . . . . . . . . 27
Configuration Overview . . . . . . . . . . . . . . . . . . . . . 27
VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . 28
BRF Configuration . . . . . . . . . . . . . . . . . . . . . . 28
Local VLAN Port Configuration. . . . . . . . . . . . . . . . 28
Port Configuration - TS Ports. . . . . . . . . . . . . . . . . . . 28
Virtual Port Configuration. . . . . . . . . . . . . . . . . . . 29

vi
SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide
Frame Conversion Configuration . . . . . . . . . . . . . . . . . 32
TCP/IP Conversion Status. . . . . . . . . . . . . . . . . . . 32
TCP/IP Conversion Parameters Change . . . . . . . . . . .32
Novell Conversion Status . . . . . . . . . . . . . . . . . . . 34
Novell Conversion Parameters Change . . . . . . . . . . . . 34
NetBios Conversion Status . . . . . . . . . . . . . . . . . . 36
NetBios Conversion Parameters Change . . . . . . . . . . . 36
SNA Conversion Status . . . . . . . . . . . . . . . . . . . .38
SNA Conversion Parameters Change. . . . . . . . . . . . . 38
Other Frames w/SNAP Conversion Status . . . . . . . . . . 40
Other Frames w/SNAP Conversion Parameters Change . . . 40
Other Frames w/o SNAP Conversion Status . . . . . . . . . 42
Other Frames w/o SNAP Conversion Parameters Change . . 42
Dual Home FEP Addresses Configuration . . . . . . . . . . 43
4. Statistics 45
Statistics Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Port Status. . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . 48
General Statistics . . . . . . . . . . . . . . . . . . . . . . . 48
Discarded Frames . . . . . . . . . . . . . . . . . . . . . . . 49
802.3 Statistics . . . . . . . . . . . . . . . . . . . . . . . . 51
Traffic Counters . . . . . . . . . . . . . . . . . . . . . . . . 51
Error Counters. . . . . . . . . . . . . . . . . . . . . . . . . 51
Virtual Port Statistics. . . . . . . . . . . . . . . . . . . . . . 53
Discarded Frames Statistics. . . . . . . . . . . . . . . . . . 53
5. Getting in Touch with Technical Support 57
Appendix A. Abbreviations 59

vii
SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide
List of Figures
Figure 1. SSIM-H2-02 Switch SmartStack Interface Module . . . . . 1
Figure 2. Removing the Expansion Slot Cover . . . . . . . . . . . . 7
Figure 3. Installing the SSIM-H2-02 . . . . . . . . . . . . . . . . . . 8
Figure 4. Ethernet CRF in SRT Bridging Mode . . . . . . . . . . . . 16
Figure 5. Ethernet CRF in SRB Bridging Mode . . . . . . . . . . . . 17
Figure 6. Frame Duplication . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7. Frame Looping . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8. Broken Ethernet Cloud . . . . . . . . . . . . . . . . . . . 20
Figure 9. Redundant Connections to Fast Ethernet Network . . . . . 21
Figure 10. Load Sharing in Redundant Connections to Fast Ethernet
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 11. STP Cost Modification . . . . . . . . . . . . . . . . . . . 24
Figure 12. Main Switch Menu . . . . . . . . . . . . . . . . . . . . . 26

viii
SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide
List of Tables
Table 1. Features and Benefits . . . . . . . . . . . . . . . . . . . . 2
Table 2. LEDs at the Left on the Front Panel . . . . . . . . . . . . . 10
Table 3. LEDs at the Right of Every Port . . . . . . . . . . . . . . . 10
Table 4. Translational Switch Physical Port Status . . . . . . . . . . 29
Table 5. Translational Switch Virtual Port Status . . . . . . . . . . . 30
Table 6. Translational Switch Configured and Actual Frame SIze . . . 30
Table 7. IP: Token Ring Format . . . . . . . . . . . . . . . . . . . .32
Table 8. IP: Ethernet Format . . . . . . . . . . . . . . . . . . . . . . 33
Table 9. IP: Source Routing . . . . . . . . . . . . . . . . . . . . . .33
Table 10. IP: Explorer Frames Type . . . . . . . . . . . . . . . . . .34
Table 11. IP: Explorer Frames Type . . . . . . . . . . . . . . . . . .34
Table 12. NOVELL: Token Ring Format . . . . . . . . . . . . . . . . 35
Table 13. NOVELL: Ethernet Format . . . . . . . . . . . . . . . . . 35
Table 14. NOVELL: Source Routing . . . . . . . . . . . . . . . . . .36
Table 15. Novell: Explorer Frames Type . . . . . . . . . . . . . . . .36
Table 16. NetBios: Token Ring Format . . . . . . . . . . . . . . . . 37
Table 17. NetBios: Ethernet Format . . . . . . . . . . . . . . . . . . 37
Table 18. NetBios: Source Routing . . . . . . . . . . . . . . . . . . 37
Table 19. NetBios: Explorer Frames Type . . . . . . . . . . . . . . . 38
Table 20. SNA: Token Ring Format . . . . . . . . . . . . . . . . . . 38
Table 21. SNA: Ethernet Format . . . . . . . . . . . . . . . . . . . . 39
Table 22. SNA: Source Routing . . . . . . . . . . . . . . . . . . . .39
Table 23. SNA: Explorer Frames Type . . . . . . . . . . . . . . . . 40
Table 24. Other Frames w/SNAP: Token Ring Format . . . . . . . . 40
Table 25. Other Frames w/SNAP: Ethernet Format . . . . . . . . . . 41
Table 26. Other Frames w/SNAP: Source Routing . . . . . . . . . . 41
Table 27. Other Frames w/SNAP: Explorer Frames Type . . . . . . . 41
Table 28. Other Frames w/o SNAP: Token Ring Format . . . . . . . 42
Table 29. Other Frames w/o SNAP: Ethernet Format . . . . . . . . .42
Table 30. Other Frames w/o SNAP: Source Routing . . . . . . . . . 43
Table 31. Other Frames w/o SNAP: Explorer Frames Type . . . . . . 43

1
SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide Introduction
1. Introduction
The Cabletron Systems SmartStack SSIM-H2-02 2-port Translational Switch
SSIM (SmartStack SSIM-H2-02) provides connectivity to 10/100 Mbps Fast
Ethernet for the SmartStack STS16-20RM Token Ring Switch. Designed for high
performance and low latency, the SmartStack SSIM-H2-02 seamlessly integrates
legacy Token Ring networks and Fast Ethernet backbones.
➽Note: References to SmartStack STS16-20RM are also applicable to SmartStack
STS16-20FRM.
The module mounts in one of the two front panel expansion module slots on the
SmartStack STS16-20RM switch.
Figure 1. SSIM-H2-02 Switch SmartStack Interface Module
The SSIM-H2-02 conforms to the IEEE standard 802.3U for 100 Mbps Fast
Ethernet 100BASE-TX.
A Translational Switch (TS) port can connect to a standard Fast Ethernet adapter or
it can act as a trunk port and carry traffic from all of the 63 VLANs it is possible to
configure inthe switch. This is achieved usingstandard IEEE 802.1QVLAN frame
tagging. For each VLAN, a virtual port is created which behaves much like an
ordinary Ethernet port.
The module supports all of the switching modes implemented in the switch. Eight
LEDs on the front panel indicate the overall operationalstate of the module and the
two ports. Configuration and detailed status information is available from the
switch console or from the graphical management application.