2H252-25R SmartSwitch 2200 Installation User’s Guide FAST ETHERNET WORKGROUP SWITCH LED MODE DPX-SPD 2H252-25R PWR CPU RESET 9034005-02 COM 2 1 4 3 2X RX-TX 6 5 4X 8 7 6X 10 9 8X 12 11 10X 16 15 14 13 12X 14X 22 21 20 19 18 17 16X 18X 20X 24 23 22X 24X
Only qualified personnel should perform installation procedures. NOTICE Enterasys Networks reserves the right to make changes in specifications and other information contained in this document and its web site without prior notice. The reader should in all cases consult Enterasys Networks to determine whether any such changes have been made. The hardware, firmware, or software described in this document is subject to change without 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.
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Contents Figures.............................................................................................................................. ix Tables ................................................................................................................................ x ABOUT THIS GUIDE Using This Guide.............................................................................................................xi Structure of This Guide ...........................................................
3 INSTALLATION 3.1 3.2 3.3 3.4 3.5 4 TROUBLESHOOTING 4.1 4.2 4.3 A B.5 viii Device Specifications ......................................................................................A-1 Physical Properties .........................................................................................A-1 Electrical Specifications ..................................................................................A-2 Environmental Requirements.................................................................
Figures Figure 1-1 3-1 3-2 3-3 3-4 3-5 3-6 3-7 4-1 4-2 B-1 B-2 B-3 B-4 B-5 Page The 2H252-25R SmartSwitch 2200................................................................................. 1-1 Tabletop or Shelf Installation........................................................................................... 3-3 Attaching the Strain-Relief Bracket ................................................................................. 3-5 Attaching the Rackmount Brackets ..................................
Tables Table 3-1 4-1 4-2 A-1 x Page Contents of 2H252-25R Carton ................................................................................... 3-2 LANVIEW LEDs ........................................................................................................... 4-3 Troubleshooting Checklist............................................................................................ 4-5 COM Port Pin Assignments .....................................................................................
About This Guide Welcome to the 2H252-25R SmartSwitch 2200 Installation User’s Guide. This guide describes the 2H252-25R SmartSwitch 2200 device and provides information concerning network requirements, installation, troubleshooting, and specifications. Important Notice Depending on the firmware version used in the 2H252-25R, some features described in this document may not be supported. Refer to the Release Notes shipped with the 2H252-25R to determine which features are supported.
Related Documents Appendix A, Specifications, contains information on functionality and operating specifications, connector pinouts, environmental requirements, and physical properties. Appendix B, Optional Installations and Mode Switch Bank Settings, describes how to remove the cover from the device, set the Mode Switch, and shows the location of an optional High Speed Interface Module (HSIM) or Very High Speed Interface Module (VHSIM) when one is installed.
Document Conventions DOCUMENT CONVENTIONS The guide uses the following conventions: NOTE NOTE: Calls the reader’s attention to any item of information that may be of special importance. TIP: Conveys helpful hints concerning procedures or actions. TIP ! CAUTION: Contains information essential to avoid damage to the equipment. CAUTION ELECTRICAL HAZARD: Warns against an action that could result in personal injury or death due to an electrical hazard.
1 Introduction This chapter introduces the 2H252-25R SmartSwitch 2200 device and provides information about how to obtain additional support from Cabletron Systems. Important Notice Depending on the firmware version used in the 2H252-25R, some features described in this document may not be supported. Refer to the Release Notes shipped with the 2H258-17R to determine which features are supported. 1.
Overview The 2H252-25R is used to connect individual high-bandwidth user devices, such as workstations, or to provide a central switching point for multiple 100-Mbps Fast Ethernet segments. The optional HSIMs provide high speed uplinks to networking technologies such as Fast Ethernet, Gigabit Ethernet, Fiber Distributed Data Interface (FDDI), Wide Area Network (WAN), and Asynchronous Transfer Mode (ATM). Some HSIMs can provide additional Fast Ethernet ports in varying media types.
Overview The RAD requests start at an interval of 1 per second. The interval then doubles after every transmission until an interval of 300 seconds is reached. At this point, the interval remains at 300 seconds. The RAD requests continue until an IP address is received from a RARP or BootP server, or an IP address is entered using Local Management. NOTE: The 2H252-25R will reboot after RAD is successful. NOTE 1.1.
Overview 1.1.5 Remote Monitoring (RMON) The 2H252-25R supports all nine Ethernet RMON groups. The Statistics, Alarms, Events and History groups are enabled on all ports by default. Cabletron Systems RMON Actions is a vendor-specific extension of RMON and provides the ability to set an “Action” on any SNMP MIB variable. The Action can be triggered by any RMON Event and/or Alarm. An example of an Action would be to turn off a MIB-2 interface if a broadcast threshold is crossed. 1.1.
Overview Administrators can configure up to four rate limit rules per port; however, each rule must not include conflicting 802.1p priority values. In order to control traffic inbound and outbound on the same port, two rate limit rules must be configured (one inbound and one outbound). Since the rate limiting operation occurs after the processing of the multi-layer classification rules, the two features can be combined to provide application-aware rate limiting.
Overview 1.1.11 802.1 Port Priority The 802.1 port priority is used to assign a default priority to the frames received without priority information in their tag header, map prioritized frames to the appropriate transmit queues, and prioritize frames according to protocol type. The 802.1 port priority is part of the IEEE 802.1D standard. 1.1.12 Management Management of the 2H252-25R is accomplished using SNMP compliant management tools for in-band Local Management.
Overview 1.1.15 Standards Compatibility The 2H252-25R is fully compliant with the IEEE 802.3, 802.3u, 802.3x, 802.1D, and 802.1Q standards. The 2H252-25R provides IEEE 802.1D Spanning Tree Algorithm (STA) support to enhance the overall reliability of the network and protect against “loop” conditions. The 2H252-25R supports a wide variety of industry standard MIBs including RFC 1213 (MIB II), RFC 1757 (RMON), RFC 1493 (Bridge MIB), RFC 1354 (FIB MIB), and RFC 1190 (Path MTU Discovery).
Getting Help 1.2 GETTING HELP For additional support related to the 2H252-25R or this document, contact Enterasys Networks using one of the following methods: World Wide Web http://www.enterasys.com/ Phone (603) 332-9400 Internet mail support@enterasys.com FTP ftp://ftp.enterasys.com Login anonymous Password your email address To send comments or suggestions concerning this document, contact the Technical Writing Department via the following email address: TechWriting@enterasys.
2 Network Requirements Before installing the 2H252-25R, review the requirements and specifications referred to in this chapter concerning the following: • SmartTrunk (Section 2.1) • 10BASE-T Twisted Pair Network (Section 2.2) • 100BASE-TX Twisted Pair Network (Section 2.3) The network installation must meet the requirements to ensure satisfactory performance of this equipment. Failure to do so will produce poor network performance. NOTE 2.
100BASE-TX Network 2.3 100BASE-TX NETWORK The fixed ports (ports 1 through 24) of the 2H252-25R provide an RJ45 connection that supports Category 5 UTP cabling. The device at the other end of the twisted pair segment must meet IEEE 802.3u 100BASE-TX Fast Ethernet network requirements for the devices to operate at 100 Mbps. Refer to the Cabletron Systems Cabling Guide for details. NOTE NOTE: The fixed ports of the 2H252-25R support Category 5 UTP cabling that has an impedance between 85 and 111 ohms.
3 Installation ELECTRICAL HAZARD: Only qualified personnel should install the 2H252-25R. NOTE NOTE: Read the Release Notes shipped with the device to check for any exceptions to the supported features and operation documented in this guide. This chapter provides the instructions required to install the 2H252-25R. A Phillips screwdriver is required to install options into the device or install the device into a rack. Follow the order of the sections listed below to correctly install the device.
Installing Options Table 3-1 Contents of 2H252-25R Carton Item Quantity 2H252-25R 1 Antistatic Wrist Strap 1 Console Cable Kit 1 Rackmount Kit 1 Strain-Relief Bracket 1 Manual Accessory Kit 1 Power Cord 2 3. Remove the tape seal on the non-conductive bag to remove the 2H252-25R. 4. Perform a visual inspection of the device for any signs of physical damage, and contact Cabletron Systems if there are any signs of damage. Refer to Section 1.2 for details. 3.
Installing the Device 3.3.1 Tabletop or Shelf Installation The following two subsections provide guidelines for installation on a tabletop or shelf. Guidelines for Tabletop and Shelf Installations Tabletop and shelf installations must be within reach of the network cabling and meet the requirements listed below: • Locate the 2H252-25R within seven feet of an appropriately grounded power receptacle that meets the power supply requirements listed in Appendix A.
Installing the Device 3.3.2 Rackmount Installation To install the 2H252-25R in a 19-inch rack, Cabletron Systems includes a strain-relief bracket for cable management and an accessory kit containing the rackmount brackets, and mounting screws to attach the rackmount brackets and strain-relief bracket.
Installing the Device 2. Place the 2H252-25R upside down (as shown in Figure 3-2) on a clean flat surface. Then attach the strain-relief bracket to the bottom of the 2H252-25R using the four 8-32 x 5/16-inch pan-head screws.
Installing the Device 2. Locate the four 6-32 x 1/4-inch flathead screws in the rackmount kit. Use these screws to attach the rackmount brackets to the bottom of the 2H252-25R as shown in Figure 3-3.
Installing the Device 3.3.3 NOTE Connecting Power NOTE: The two power supplies in the 2H252-25R have automatic voltage sensing that allows connection to power sources ranging from 100–125 Vac, 2.5 A or 200–240 Vac, 1.25 A, 50/60 Hz. To connect the 2H252-25R to the power sources, proceed as follows: 1. Plug each power cord into a grounded wall outlet, see Figure 3-5. To take advantage of the load sharing and redundancy capabilities, each power cord must be plugged into a separate dedicated ac outlet.
Connecting to the Network 2. Observe the LANVIEW LEDs. After a successful boot, the PWR LED turns ON (green). If the PWR LED is amber, there is no power redundancy. Check the power cord connections and the power source. If there are no problems with the power cord connections or power source and the PWR LED is still amber, contact Cabletron Systems for help. Refer to Section 1.2 for details. 3.
Connecting to the Network Receive (RX) LED MODE LED MODE Switch in RXTX position RX-TX Transmit (TX) DPX-SPD H RKGROUP SWITC T WO FAST ETHERNE LED MODE 2X RX-TX 6 5 4 3 2 1 4X 6X 8X 10X 12X 14X 16X 18X 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 20X 22X 24X DPX-SPD PWR CPU RESET 2H252-25R COM LED MODE Switch Port Twisted Pair Cable 25041-07 Figure 3-6 Connecting the Twisted Pair Segment 3.
Connecting to the Network d. Verify that the RJ45 connector on the twisted pair segment has the proper pinouts. Depending on what device is connected to the 2H252-25R, a straight-through or crossover cable may be used. Figure 3-7 shows the wiring for both types of cables. e. Check the cable for continuity.
Completing the Installation 4. Verify that a link exists by checking that the port RX LED is on (flashing amber, blinking green, or solid green). If the RX LED is off and the TX LED is not blinking amber, perform the following steps until it is on: a. Verify that the device at the other end of the twisted pair segment is powered up. b. Verify that the RJ45 connector on the twisted pair segment has the proper pinouts. c. Check the cable for continuity. d.
4 Troubleshooting This chapter provides information concerning the following: • Using LANVIEW (Section 4.1) • Troubleshooting Checklist (Section 4.2) • Using the RESET Button (Section 4.3) 4.1 USING LANVIEW The 2H252-25R uses Cabletron Systems’ built-in visual diagnostic and status monitoring system called LANVIEW. The LANVIEW LEDs (Figure 4-1) allow quick observation of the network status to aid in diagnosing network problems.
Using LANVIEW The LED MODE switch is located on the front panel of the 2H252-25R as shown in Figure 4-1. This switch enables the user to change the function of the port LEDs. When the LED MODE switch is moved to the left, the LEDs indicate the receive (RX) and transmit (TX) status of the respective fixed ports (ports 1 through 24).
Using LANVIEW Table 4-1 LANVIEW LEDs LED Color State Recommended Action PWR Off Device electronics not receiving power from power supply(ies). 1. Ensure that the power cords are plugged in correctly and that there is power at the power source. 2. Contact Cabletron Systems for assistance. Green Functional. Power supply(ies) operating normally. None. Amber Indicates loss of power supply redundancy. 1.
Using LANVIEW Table 4-1 LED Color LANVIEW LEDs (Cont’d) State Recommended Action The following port RX and TX LED indications are only valid when the LED MODE switch is in the RX-TX position. RX (Receive) TX (Transmit) Off No link. None. Green Solid. Port enabled, link, no activity. None. Blinking. Port disabled, link. None. Amber Flashing. Port enabled, link, activity. None. Red Diagnostic failure. Contact Cabletron Systems for assistance. Off Port enabled, and no activity. 1.
Troubleshooting Checklist Table 4-1 LED Color LANVIEW LEDs (Cont’d) State Recommended Action The following port DPX and SPD LED indications are only valid when the LED MODE switch is in the DPX-SPD position. FDX Amber None. (Full Duplex Status) Port is operating in standard mode (10 Mbps or 100 Mbps). Green Port is operating in full duplex mode (20 Mbps or 200 Mbps). None. Amber There is a link and the port is operating at 10 Mbps. None.
Troubleshooting Checklist Table 4-2 Troubleshooting Checklist (Cont’d) Problem Possible Cause Recommended Action No Local Management Password screen. Autobaud is enabled, but the baud rate has not yet been detected. Press ENTER (RETURN) (may take up to four times). Terminal setup is not correct. Refer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H258 Local Management User’s Guide for proper setup procedures. Improper console cable pinouts.
Troubleshooting Checklist Table 4-2 Troubleshooting Checklist (Cont’d) Problem Possible Cause Recommended Action Cannot contact the 2H252-25R through in-band management. IP address not assigned. Refer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H258 Local Management User’s Guide for IP address assignment procedure. Port is disabled. Enable the port. Refer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H258 Local Management User’s Guide for the instructions to enable/disable ports.
Using the RESET Button Table 4-2 Troubleshooting Checklist (Cont’d) Problem Possible Cause Recommended Action Port(s) goes into standby for no apparent reason. Loop condition detected. 1. Verify that Spanning Tree is enabled. Refer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H258 Local Management User’s Guide for the instructions to set the type of STA. 2. Review network design and delete unnecessary loops. 3. If the problem continues, contact Cabletron Systems for assistance.
Using the RESET Button FAST ETHERNET WORKGROUP SWITCH LED MODE 2 1 2X RX-TX 6 5 4 3 4X 8 7 6X 10 9 8X 12 11 10X 16 15 14 13 12X 14X 16X 22 21 20 19 18 17 18X 20X 24 23 22X 24X DPX-SPD 2H252-25R PWR CPU RESET COM RESET Button 25041-10 Figure 4-2 RESET Button To reset the 2H252-25R processor, press and release the RESET button. The 2H252-25R goes through a reset process for approximately 60 seconds. Additional downtime may result as the device reenters the network.
Using the RESET Button 4-10 Troubleshooting
A Specifications This appendix provides operating specifications for the Cabletron Systems 2H252-25R. Cabletron Systems reserves the right to change these specifications at any time without notice. A.1 DEVICE SPECIFICATIONS Processors: Intel i960 RISC processor Power PC Dynamic Random Access Memory (DRAM): 20 MB expandable to 32 MB FLASH Memory: 8 MB Shared Memory: 4 MB A.2 PHYSICAL PROPERTIES Dimensions: 7.11H x 43.18W x 46.99D (cm) 2.8H x 17W x 18.5D (in) Approximate Weight (Unit): 8.
Electrical Specifications A.3 ELECTRICAL SPECIFICATIONS Line Input Range, Volts (V) 100–125 Vac 200–240 Vac Input Current, Amperes (A) 2.3 A 1.2 A Frequency, Hertz (Hz) 50/60 Hz 50/60 Hz Input Power, Volt Amperes (VA) 250 VA 250 VA A.4 ENVIRONMENTAL REQUIREMENTS Operating Temperature: 5°C to 40°C (41°F to 104°F) Storage Temperature: -30°C to 73°C (-22°F to 164°F) Operating Relative Humidity: 5% to 90% (non-condensing) A.
COM Port Pinout Assignments A.6 COM PORT PINOUT ASSIGNMENTS The COM port is a serial communications port that supports Local Management or connection to a UPS. Table A-1 shows the COM port pin assignments. Table A-1 COM Port Pin Assignments A.
B Optional Installations and Mode Switch Bank Settings ELECTRICAL HAZARD: ONLY QUALIFIED SERVICE PERSONNEL SHOULD ATTEMPT THE FOLLOWING PROCEDURES. NUR QUALIFIEZIERTE SERVICE PERSONNAL DIE FOLGENDE PROCEDURE FOLGEN SOLLTEN. SOLAMENTE PERSONAL CALIFICADO DEBE INTENTAR ESTE PROCEDIMIENTO.
Removing the Chassis Cover B.2 REMOVING THE CHASSIS COVER This section describes how to remove the 2H252-25R chassis cover. DO NOT REMOVE THE COVER FROM THE 2H252-25R WHILE POWER IS APPLIED TO THE UNIT. HAZARDOUS VOLTAGES ARE PRESENT AND COULD CAUSE PERSONAL INJURY AND/OR DAMAGE THE UNIT. DO NOT POWER UP THE 2H252-25R AGAIN UNTIL THE COVER AND SCREWS ARE IN PLACE. DECKEL VON DAS 2H252-25R NICHT ABZIEHEN UNTER SPANNUNG. GEFAHR FÜR DAS PERSONNAL UND/ODER DAS GERÄT WEGEN GEFÄHRLICHE SPANNUNGEN ENSTEHT.
Removing the Chassis Cover To remove the chassis cover, proceed as follows: 1. Disconnect the 2H252-25R from the network as follows: a. Unplug both power cords from the rear of the chassis. ELECTRICAL HAZARD: TURN OFF THE 2H252-25R BY UNPLUGGING THE POWER CORD FROM THE REAR OF THE CHASSIS. AM HINTEN DES 2H252-25R STECHEI ABZIEHEN UM AUS ZU SCHALTEN. APAGUE EL 2H252-25R DESENCHUFE EL CABLE DE LA UNIDAD.
Removing the Chassis Cover Screws (4) Chassis Cover Front Panel Chassis Note: If the device was rack mounted, the four screws fastening the cover to the front panel are removed and installed along with the rackmount brackets. 2504-30 Figure B-1 Removing the Chassis Cover 4. Remove the cover by sliding it back until it clears the front of the chassis and then lifting it straight up and off the chassis. To reinstall the chassis cover, perform the removal procedures in reverse.
Setting the Mode Switches B.3 SETTING THE MODE SWITCHES Figure B-2 shows the location of the mode switches and the switch settings for normal operation. These switches are set at the factory and rarely need to be changed. Switch definitions and positions are as follows: • Switches 1 through 4 – For Cabletron Systems use only. • Switch 5 – COM Port Autobaud. The default (OFF) position enables Autobaud sensing on the COM port for Local Management sessions.
Setting the Mode Switches • Switch 6 – Forced BootP. NOTE NOTE: After changing the position of switch 6, DO NOT reapply power to the chassis until there is a station on the network acting as a BootP server, which contains the downloadable firmware image file. DO NOT attempt a Forced BootP unless a BootP server has been configured for the 2H252-25R. The BootP server references the location of a station acting as a Trivial File Transfer Protocol (TFTP) server containing the 2H252-25R image file.
SIMM Upgrade B.4 SIMM UPGRADE Memory upgrade is available for the 2H252-25R to expand its DRAM to 32 MB. This section explains how to locate and add/replace a Single In-line Memory Module (SIMM). For information on the available SIMM upgrades, call Cabletron Systems for technical support. For details on getting help, refer to Section 1.2. B.4.1 Locating SIMMs Figure B-3 shows the two locations of the DRAM SIMM connector.
SIMM Upgrade B.4.2 ! Installing the DRAM SIMM CAUTION: Observe all antistatic precautions when handling sensitive electronic equipment. CAUTION To install a DRAM SIMM, refer to Figure B-4 and proceed as follows: 1. With the SIMM alignment notch oriented as shown in Figure B-4, insert the SIMM down between the connector teeth. 2. Pivot the SIMM downward so the connector clips align with the two side notches of the SIMM and the connector clips lock the SIMM into place.
Installing Optional HSIM or VHSIM Interface Modules B.5 INSTALLING OPTIONAL HSIM OR VHSIM INTERFACE MODULES Figure B-5 shows the location of the two connectors for an optional High HSIM or VHSIM. Depending on the HSIM or VHSIM installed, one or both connectors are used. NOTE NOTE: The installation instructions for the optional HSIM or VHSIM are in the associated user’s guide.
Index Numerics 100BASE-T requirements 2-2 10BASE-T requirements 2-1 2H252-25R description of 1-1 front panel 1-1 802.
Index setting B-5 N Network connection of twisted pair cables 3-8 Network connections 3-8 P Physical properties A-1 Port redirect function introduction to 1-4 Power connection 3-7 R Redirect functions port and VLAN introduction to 1-4 Regulatory Compliance A-3 Remote Monitoring (RMON) introduction to 1-4 RESET button 4-8 Runtime IP address discovery introduction to 1-2 S SIMMs Index-2 installing DRAM B-8 location B-7 SmartTrunk introduction to 1-3 Specifications A-1 Standards compatibility 1-7 Switch
