Cabletron Systems MMAC-Plus 9G426-02 Скачать руководство пользователя страница 33 | Manualshive

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Cabletron Systems MMAC-Plus 9G426-02 Скачать руководство пользователя страница 33

3-5

Operation

SecureFast VLAN Switches

SecureFast VLAN (SFVLAN) switches are connection-oriented internetworking
devices. These devices use source address/destination address (SA/DA) pairs
along with embedded layer 3 virtual routing services to provide address
resolution and call processing. In a connection-oriented network, path
determination is accomplished through signaling performed at call setup time.
Once a call is programmed, no additional software intervention is required until
the call is completed. This type of call management operates much like a
telephone network. The circuit is set up, data is transferred, and the circuit is torn
down.

Switches switch packets at the MAC-layer and allow connectivity of endpoints
via Access Ports based on VLAN mappings. The first packet is routed, the
remaining packets are then switched along the same path. Each VLAN switch
maintains a Local Directory of endpoint MAC and network addresses found on
each switch port. The aggregation of each VLAN switch’s Local Directory form a
complete view of an entire VLAN domain. This information is used by the VLAN
Manager for assignment and verification of VLANs.

i960 Core

The i960 core provides the SNMP protocol stacks, to support industry standard
MIBs. Additionally, Cabletron enterprise extension MIBs are supported for each
media type. Advanced management services, such as the Distributed LAN
Monitor, telnet and network address to MAC address mapping, are also provided
by the i960 core.

The Host engine sends and receives packets via the CPU’s SmartSwitch ASIC
Interface. This allows the bridge to perform spanning tree protocol and other
bridging functions. The SMB Interfaces provide communication to the Host
Engine for management functions.

INB NIB

Each module that attaches to the Internal Network Bus (INB) has an INB Network
Interface Block (NIB). The INB NIB converts canonical frames to fixed length data
blocks for transmission onto the INB. For data blocks received from the INB, the
INB NIB reassembles the data blocks received from the INB back into canonical
frames for transmission to the SmartSwitch ASIC then from the SmartSwitch
ASIC to the front panel ports.

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Содержание MMAC-Plus 9G426-02

Страница 1: ...TM The Complete Networking Solution MMAC Plus 9G426 02 User s Guide ...

Страница 2: ......

Страница 3: ...SOEVER 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 Copyright February 1997 by Cabletron Systems Inc P O Box 5005 Rochester NH 03866 5005 All Rights Reserved Printed in the United States of America Order Number 9032017 Feb...

Страница 4: ...use 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...

Страница 5: ...sentative 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 r...

Страница 6: ... adjustments The output is factory set and does not allow any user adjustment Class 1 Laser transceivers comply with the following safety standards 21 CFR 1040 10 and 1040 11 U S Department of Health and Human Services FDA IEC Publication 825 International Electrotechnical Commission CENELEC EN 60825 European Committee for Electrotechnical Standardization When operating within their performance li...

Страница 7: ... or 55 x 10 6 watts Removing the optical connector from the transceiver allows laser radiation to emit directly from the optical port The maximum radiance from the optical port under worst case conditions is 0 8 W cm 2 or 8 x 103 W m2 sr 1 Do not use optical instruments to view the laser output The use of optical instruments to view laser output increases eye hazard When viewing the output optical...

Страница 8: ...Notice vi ...

Страница 9: ...d from the motherboard 2 5 Installing the Module into the MMAC Plus Chassis 2 9 The Reset Switch 2 11 Chapter 3 Operation SmartSwitch ASIC 3 2 Traditional Switch 3 2 SecureFast Switch SFS 3 2 VLAN 3 2 VLAN Domains 3 4 SecureFast VLAN Switches 3 5 i960 Core 3 5 INB NIB 3 5 System Management Buses 3 6 SMB 1 Bus 3 6 SMB 10 Bus 3 6 System Diagnostic Controller 3 6 DC DC Converter 3 7 INB Interface 3 7...

Страница 10: ...Contents viii Chapter 5 Specifications Technical Specifications 5 1 CPU 5 1 Memory 5 1 Standards 5 1 Network Interfaces 5 1 Safety 5 2 Service 5 2 Physical 5 2 Dimensions 5 3 Weight 5 3 Environment 5 3 ...

Страница 11: ... or via the Environmental Module s COM ports Serial Line Internet Protocol SLIP or Point to Point Protocol PPP are supported by the Environmental Module s COM ports For more information on the SMB 10 SLIP or PPP refer to the MMAC Plus Local Management User s Guide The 9G426 02 also features front panel LANVIEW Diagnostic LED s to offer at a glance status information about each front panel port as ...

Страница 12: ...Standard Management Information Base MIBs RMON RFC1271 IETF MIB II RFC 1213 IETF Bridge MIB RFC 1493 and a host of other Cabletron enterprise MIBs The 9G426 02 also offers the user a wide variety of statistical network management information to enhance network planning and troubleshooting This module provides information for each front panel Ethernet Gigabit port including packet counts along with...

Страница 13: ...th LANVIEW LEDs you can quickly identify at a glance system status as well as the device port and physical layer status Two LEDs indicate the transmission and reception of data from the INB MMAC Plus backplane connection Each of the 2 Ethernet front panel ports features two LEDs per port to indicate the port s Administrative status enabled disabled LINK status Link Nolink and Data Activity receivi...

Страница 14: ...Introduction 1 4 Figure 1 1 The 9G426 02 Module E N E T 1 SMB CPU 9G426 02 GIGA ENET INB E N E T 2 ...

Страница 15: ...ing this manual contact Cabletron Systems Technical Support Phone 603 332 9400 Monday Friday 8 A M 8 P M Eastern Time CompuServe GO CTRON from any prompt Internet mail support ctron com FTP ctron com 134 141 197 25 Login anonymous Password your email address BBS 603 335 3358 Modem setting 8N1 8 data bits No parity 1 stop bit Before calling Cabletron Systems Technical Support have the following inf...

Страница 16: ...ducts in the network The device history i e have you returned the device before is this a recurring problem etc Any previous Return Material Authorization RMA numbers For additional information about Cabletron Systems products visit our World Wide Web site http www cabletron com ...

Страница 17: ...e the module from the plastic bag Observe all precautions to prevent damage from Electrostatic Discharge ESD 3 Carefully examine the module checking for damage If any damage exists DO NOT install the module Contact Cabletron Systems Technical Support immediately Never expose the module s components to Electrostatic Discharge Make sure you have attached the module s disposable grounding strap to yo...

Страница 18: ... level circuit board is known as the motherboard The module s second level circuit board is known as the daughterboard The removable daughterboard attaches to the motherboard s connectors and standoffs Both the motherboard and the daughterboard contain components that are accessible to the user Figure 2 1 The 9G426 02 Module s two major circuit boards motherboard daughterboard ...

Страница 19: ...sockets for DRAM and FLASH memory You can access the DIP switch without removing the daughterboard However to access the other user accessible components on the daughterboard you must remove the daughterboard from the motherboard DIP Switch An eight position DIP switch is located on the module s daughterboard as shown in Figure 2 2 The functions of the switches are listed in Table 2 1 Figure 2 2 L...

Страница 20: ...VRAM when the module is powered down and remain there until the switch is toggled again 6 Force BootP Download Toggling this switch after pulling the board out of the MMAC Plus clears download information from NVRAM and forces image files to be downloaded from the station connected to the EPIM on the Environmental Module configured to act as that module s BOOTP server 5 Reserved For Factory Use On...

Страница 21: ...the module s front faceplate is to the left and the module s back backplane connectors is to the right The daughterboard abuts the backplane connectors see Figure 2 1 2 Locate the daughterboard s nine securing screws see Figure 2 3 3 Use a phillips head screwdriver to remove the securing screws Set the screws aside 4 Grasp the daughterboard and lift up 5 Turn the daughterboard over to reveal its u...

Страница 22: ...Installing the 9G426 02 Module 2 6 Figure 2 3 Daughterboard attached to the 9G426 02 Module Mounting Screws ...

Страница 23: ...2 7 Installing the 9G426 02 Module Figure 2 4 User Accessible components on underside of 9G426 02 Module s Daughterboard DIP Switch BOOT PROM SMB 1 PROM DRAM SIMM slot FLASH SIMM slot ...

Страница 24: ...OM install the BOOT PROM Upgrade Kit Installation instructions are included in the upgrade kit FLASH SIMM The 9G426 02 Module is shipped with a 4Mb FLASH SIMM The FLASH SIMM s socket is located on the underside of the module s daughterboard as shown in Figure 2 4 To upgrade the FLASH SIMM refer to the installation instructions included in the FLASH SIMM Upgrade Kit DRAM SIMM The 9G426 02 Module is...

Страница 25: ... Grounding receptacle in the lower right corner of the MMAC Plus Chassis shown in Figure 2 5 3 Grasp the module and slide it into the slot Make sure that the module s circuit card is between the card guides as shown in Figure 2 5 Check both the upper and lower tracks of the card Take care that the module slides in straight and engages the backplane connectors properly 4 Lock down the top and botto...

Страница 26: ...cuit card is between the card guides Lock down the top and bottom plastic tabs at the same time applying even pressure Figure 2 5 Installing the 9G426 02 Module 7 FLNK 8 FLNK FLNK 10 FLNK IN S 11 FLNK IN S 12 RX TX RX TX RX Circuit Card Card Guides Metal Back Panel ...

Страница 27: ...g down the module or restarting the module To reset the i960 processor press the reset switch twice within three seconds To shut down the module press and hold the reset switch down for three or more seconds To restart the module after it has been shut down press and release the Reset Switch For security SNMP management can be used to disable the functions of this switch Figure 2 6 The Reset Switc...

Страница 28: ...Installing the 9G426 02 Module 2 12 ...

Страница 29: ...rk Interface Blocks GNIBs convert data packets received from any of the GPIMs into a canonical frame format before forwarding to the SmartSwitch ASIC while the Internal Network Bus Network Interface Block INB NIB converts data packets received from the INB into a canonical format before forwarding to the SmartSwitch ASIC Figure 3 1 Packet Flow i960 Processor GNIB GNIB Smart Switch ASIC INB NIB DC ...

Страница 30: ...rtSwitch ASIC is designed to support up to 64 ports shared between the host processor the INB backplane and LAN WAN interfaces on the front panel of MMAC Plus modules The SmartSwitch ASIC can operate in two modes as a traditional switch or as a SecureFast Switch SFS Traditional Switch When operating as a traditional switch the SmartSwitch ASIC makes filtering forwarding decisions based on Destinat...

Страница 31: ...tablishment of VLANs that encompass users on multiple physical LAN segments This permits endpoints to be administratively grouped For example in Figure 3 2 the users on LANs A and B belong to the Finance group however they are physically removed from each other and as such cannot communicate directly The VLAN solution places both LAN segments on the same VLAN all endpoints appear and act as if the...

Страница 32: ... often used when describing the connections between switches in a domain Fully meshed implies that there are links between all switches to every other switch A fully meshed topology provides high reliability and low delays between endpoints Figure 3 4 shows a VLAN domain consisting of four fully meshed VLAN switches Figure 3 4 Fully Meshed VLAN Domain SFS Network VLAN Switch VLAN Switch VLAN Switc...

Страница 33: ...of each VLAN switch s Local Directory form a complete view of an entire VLAN domain This information is used by the VLAN Manager for assignment and verification of VLANs i960 Core The i960 core provides the SNMP protocol stacks to support industry standard MIBs Additionally Cabletron enterprise extension MIBs are supported for each media type Advanced management services such as the Distributed LA...

Страница 34: ...a an optional Ethernet Port Interface Module EPIM located on the front of the Environmental Module Through an EPIM connection full SNMP management of the MMAC Plus is available side band from user data Modules which share the SMB 10 bus periodically send out loop back packets to ensure the validity of SMB 10 If a fault is detected on the SMB 10 the SMB 1 can be used as an alternate communication c...

Страница 35: ...kplane is accomplished in the INB Time Division Multiplexing ITDM logic The arbitration is a three level scheme that ensures that no one can get the backplane for more than one time slice at a time The ITDM RAM contains 256 4 bit locations This RAM is used to hold slot numbers of modules participating in INB backplane arbitration The arbitration engine accesses this RAM once every time slice to ge...

Страница 36: ...highest slot number participating each time slice Lowest Slot Number Level 3 This level is only used if the other two levels fail in granting access to the backplane If the owner of the token is not requesting then the lowest slot number requesting will be granted access This ensures that a time slice will not be idle if there are modules requesting access Monarch Slave MMAC Plus Modules All modul...

Страница 37: ...atus of the module and may be used as an aid in troubleshooting Shown in Figure 4 1 are the LANVIEW LEDs of the 9G426 02 module Figure 4 1 The LANVIEW LEDs Port Transmit E N E T 1 SMB CPU 9G426 02 GIGA ENET INB E N E T 2 System Status INB Transmit INB Receive Port Receive ...

Страница 38: ...n Booting Module is performing its boot process Red Reset Module is resetting Red Flashing Failed Fatal error Off Power off Module powered off Table 4 2 INB Receive LEDs LED Color State Green Link no activity port enabled Green Flashing Link port disabled Yellow Flashing Link activity port enabled Flashing to steady on indicates rate Red INB fault not synchronized with the Monarch Off No link no a...

Страница 39: ...ellow Flashing Link activity port enabled flashing to steady on indicates rate Red Fault Diagnostic Hardware Failure Off Off No link port disabled No link port enabled Table 4 5 Port Transmit LEDs LED Color State Green Flashing Data activity flashing to steady on indicates rate Port Enabled Yellow Blinking Port in standby state Red Flashing Collision with collision rate Red Fault Diagnostic Hardwa...

Страница 40: ...LANVIEW LEDs 4 4 ...

Страница 41: ...ifications CPU Intel i960 RISC based microprocessor Memory 4 Meg Local RAM expandable to 12 Meg 4 Meg Flash Memory expandable to 32 Meg 2 Meg Packet RAM 16 Meg DRAM expandable to 16 Meg Standards IEEE 802 1D Network Interfaces MMF SC Connectors ...

Страница 42: ... 55022 Class A VCCI Class I The EMC requirements of EN 50082 1 IEC 801 2 ESD IEC 801 3 Radiated susceptibility IEC 801 4 EFT Service MTBF MHBK 217E 200 000 hrs MTTR 0 5 hr It is the responsibility of the person who sells the system to which the module will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions CAUTION ...

Страница 43: ...s 35 0 D x 44 0 H x 6 0 W centimeters 13 8 D x 17 4 H x 1 2 W inches Weight Unit 1 360 7 gr 3 lbs Shipping 1 814 4 gr 4 lbs Environment Operating Temperature 5 to 40 C Storage Temperature 30 to 90 C Relative Humidity 5 to 95 non condensing ...

Страница 44: ...Specifications 5 4 ...

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