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Call Back-up Configuration

WPIM-S/T User’s Guide

3-13

3.2

CALL BACK-UP CONFIGURATION

This section provides instructions for configuring the WPIM-S/T to
automatically back-up a PPP dedicated/permanent connection or a Frame
Relay PVC using a dial-up ISDN. These are the two primary uses. All
connections configured as call back-up are continuously monitored for a
failed condition. Whenever a primary connection with call back-up fails,
the back-up call is automatically made using Dial-on-Demand (DoD).
Once the failed connection is restored the back-up call may be
automatically closed. DoD automatically brings up the back-up SVC
connection whenever the primary connection has failed and there is traffic
to be forwarded across the back-up SVC.

This example assumes the setup shown in

Figure 3-5

, using two CSX400s

with primary connections using WPIM-T1s (WPIM-E1, WPIM-DDS, or
WPIM-SY could also be used) and with WPIM-S/T back-up modules
installed in each CSX400. The NT-1 is needed if the connection to the
Telco cloud has a U interface.

Figure 3-5

Configuration for PPP backup

The procedures listed below and detailed in the following sections must
be performed in the order given to properly configure the WPIM-S/T for
call back-up:

•

Select the protocol

•

Enable CCP

•

Configure backup

Telco Cloud

1483_04

BACKUP

BACKUP

Telco Cloud

PRIMARY

PRIMARY

CSX400 #1

WPIM-T1

WPIM-S/T

SITE #1

SITE #2

NT-1

NT-1

CSX400 #2

WPIM-T1

WPIM-S/T

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Содержание WPIM-S/T

Страница 1: ...WPIM S T SP Title Page WPIM S T User s Guide 9032605 01 ...

Страница 2: ......

Страница 3: ...in this manual may be trademarks or registered trademarks of their respective companies 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 teste...

Страница 4: ... equipment is used in a domestic environment radio disturbance may arise When such trouble occurs the user may be required to take corrective actions CABLETRON SYSTEMS INC PROGRAM LICENSE AGREEMENT IMPORTANT Before utilizing this product carefully read this License Agreement This document is an agreement between you the end user and Cabletron Systems Inc Cabletron that sets forth your rights and o...

Страница 5: ... IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION SPECIAL INCIDENTAL CONSEQUENTIAL OR RELIANCE DAMAGES OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAG...

Страница 6: ...022 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 ___________________________________ _____________________...

Страница 7: ...WAN Protocols 1 3 1 5 MIB Support 1 4 CHAPTER 2 SETUP AND INSTALLATION 2 1 Installing the WPIM S T into a Host 2 1 2 2 Jumper Settings 2 1 2 3 Software Setup 2 2 2 4 ISDN Connection to the WPIM S T 2 3 CHAPTER 3 LOCAL MANAGEMENT 3 1 Local Management Screen Overviews 3 2 3 1 1 The WAN Physical Configuration Screen 3 2 3 1 2 Remote Profiles Setup 3 4 3 1 3 Bandwidth on Demand MLP Configuration 3 7 3...

Страница 8: ...nd SPIDs for the Port 3 19 3 2 7 Set Maximum Number of Neighbor Remote Profiles 3 20 3 2 8 Reset 3 21 3 2 9 Configure the Profiles 3 21 3 2 10 Verify Status 3 22 3 2 11 Configure Primary Lines and Routing 3 22 APPENDIX A SPECIFICATIONS A 1 Physical Properties A 1 A 2 Environmental Requirements A 1 A 3 Regulatory Compliance A 1 A 4 WPIM S T Interface Cable Pinouts A 2 A 5 WPIM S T WAN LEDs A 3 APPE...

Страница 9: ...the features and capabilities of the WPIM S T You should have a general working knowledge of the following data communications networks and their physical layer components before using the WPIM S T WAN Ethernet and IEEE 802 3 STRUCTURE OF THIS GUIDE The following list briefly explains each chapter of the WPIM S T manual Chapter 1 Introduction describes WPIM S T features performance and the protoco...

Страница 10: ...n Systems HSIM W6 User s Guide Cabletron Systems HSIM W6 Installation Guide Cabletron Systems QuickSET Configuration Guide for CSX200 CSX400 CSX400 DC HSIM W6 and HSIM W84 Cabletron Systems CyberSWITCH CSX400 and CSX400 DC Installation Guide Cabletron Systems Local Management User s Guide for CSX200 CSX400 CSX400 DC HSIM W6 and HSIM W84 The manuals referenced above can be obtained on the World Wid...

Страница 11: ...ut or a highlighted screen selection RETURN Indicates the RETURN or ENTER key depends on the keyboard ESC Indicates the keyboard Escape key SPACE bar Indicates the keyboard space bar key BACKSPACE Indicates the keyboard backspace key arrow keys Refers to the four keyboard arrow keys Indicates the keyboard key DEL Indicates the keyboard delete key italic type Emphasizes important information indica...

Страница 12: ...evice before is this a recurring problem etc Any previous Return Material Authorization RMA numbers n Indicates the generic use of a number e g 19nn indicates a four digit number in which the last two digits are unknown Indicates in the Local Management screens that a value may be entered or selected In the format descriptions in the Network Tools section required arguments are enclosed in In the ...

Страница 13: ...and troubleshooting procedures Use the Graphical User Interface QuickSET to fully configure the WPIM S T Due to the automation of setup features QuickSET use is strongly recommended However Chapter 3 contains additional information on configuring the WPIM S T which can be done independent of QuickSET 1 1 WPIM S T FEATURES The WPIM S T provides ISDN 128 Kbps Basic Rate Interface BRI in a backup or ...

Страница 14: ...e devices can be linked to a single ISDN connection each having their own telephone number Two or more channels can be combined into a single larger transmission pipe offering variable transmission speeds 1 3 ISDN CALL BACK UP The ISDN call back up feature provides a back up link for a remote site or branch office when one or more primary WAN interfaces for a frame relay circuit or a nailed up PPP...

Страница 15: ... configurations at the initial release of the call back up feature 1 4 WAN PROTOCOLS The WPIM S T interface supports ISDN BRI which encapsulates PPP For more information refer to the host platform manual and the Release Notes included with the host platform for a list of current supported protocols ISDN BRI is a switched Data Link layer control protocol that uses digital signaling to place a call ...

Страница 16: ...connection Frame Relay is a packet switching data communications protocol that statistically multiplexes many data conversations over a single transmission link Data compression allows Frame Relay to negotiate compression over Frame Relay PVCs 1 5 MIB SUPPORT Refer to the Release Notes included with the host platform for a list of all MIBs supported by the WPIM S T For information about how to ext...

Страница 17: ...shipping box with the WPIM S T 2 2 JUMPER SETTINGS The WPIM S T has two jumpers P1 and P2 for the 100 ohm ISDN Bus termination See Figure 2 1 The jumpers must be set before using the device and must be set the same way to take care of both the transmit and receive pair of the twisted pair cable The WPIM S T is shipped with the jumpers at a default setting of terminated Figure 2 1 Termination Jumpe...

Страница 18: ... a close up of the jumper settings for the terminated and not terminated positions Figure 2 2 Jumper Settings 2 3 SOFTWARE SETUP The QuickSET CD included in the WPIM S T shipping package provides a quick and efficient setup for the WPIM S T into the host device It is recommended that QuickSET be used for the setup If a setup using Local Management and Network Tools is desired refer to Chapter 3 NO...

Страница 19: ...NT 1 and the cables may be ordered separately from Cabletron Systems The recommended parts are 9360005 10 for the RJ45 cables and CSXUT620F PA for the NT 1 Figure 2 3 ISDN Connection to the WPIM S T CAUTION DO NOT plug the ISDN cable into the ISDN wall jack until the software setup is complete either by using QuickSET or the management procedure in Chapter 3 If this cable is plugged in prematurely...

Страница 20: ...Chapter 2 Setup and Installation 2 4 WPIM S T User s Guide ...

Страница 21: ...ion 3 1 1 Remote Profiles Setup screen Section 3 1 2 Bandwidth on Demand MLP Configuration screen Section 3 1 3 WAN Interface Configuration screen Section 3 1 4 Section 3 2 gives an example of how to configure call back up using the Local Management screens explained in Section 3 1 and adds Network Tools Important Notice QuickSET is highly recommended for the configuration of the WPIM S T However ...

Страница 22: ...creens used to configure theWPIM S T in Local Management 3 1 1 The WAN Physical Configuration Screen The WAN Physical Configuration screen is used to access the WPIM or Physical Interface for configuration To access the WAN Physical Configuration screen from the Feature Selection screen use the arrow keys to highlight the WAN Setup menu item then press ENTER The screen shown in Figure 3 1 displays...

Страница 23: ...n in the WAN Physical Configuration screen in Figure 3 1 The following describes the fields of the WAN Physical Configuration screen WPIM 1 2 Read Only Displays the specific configuration information for two different WPIMs Type Read Only Displays the type of WPIM installed WPIM Read Only Displays the number of the slot in which the WPIM resides Mgr Type Selectable Displays the type of protocol ma...

Страница 24: ...splays The Mgr Type ISDN BRI must have already been configured and saved otherwise this screen is not accessible RETURN Command Allows the user to return to the previous screen 3 1 2 Remote Profiles Setup The Remote Profiles Setup screen allows the user to set up the phone numbers and names for each of the interfaces To access the Remote Profiles Setup screen from the WAN Physical Configuration sc...

Страница 25: ...TES Caller ID is not necessary but it functions as a first level of security If you set the configuration for no caller id and the Telco has the caller ID phone number identified you will never receive a call Remote Profiles There must be 2 profiles set up for BoD the first is primary the second is multilink SAVE SELECT EXIT Profile Number Profile Name IF 4 Name RID 1 PF 1 Maker Name IF 5 Name RID...

Страница 26: ...d to describe a possible connection SAVE Command Used to save the configuration in memory once changes have been made CLEAR Command Used to clear an entire selected profile SELECT Command Used to enter the Remote Profile Selection s area in order to choose the profile to configure or modify EXIT Command Used to exit the current screen PREV NEXT Command The Remote Profile Selection s screen will no...

Страница 27: ...ither side controls Bandwidth option are toggle fields selected by pressing the SPACE bar once the field is highlighted Press RETURN to choose the desired parameter The default for these fields is DISABLE Use the numerical input keys to enter the desired number for all the other numerical input fields when selected SAVE Bandwidth on Demand BoD option ENABLE DISABLE DISABLE Line Utilization LU Thre...

Страница 28: ... value should be chosen such that the time it takes to add more bandwidth is less than the time the traffic will exceed the line threshold This will avoid the additional cost of adding unnecessary bandwidth The default setting is 1 of LUA computation s LUT for when to remove BW Specifies the number of seconds that the output has fallen below the line threshold before previously added additional ba...

Страница 29: ... bandwidth Specifically channels can be removed in multiples The default setting is 1 Avg packet size used to determine when to fragment Specifies the average packet size by which to determine when it is best to split a packet This is an attempt to minimize the amount of buffering necessary at the remote device to maintain packet sequence The default setting is 260 Either side controls Bandwidth S...

Страница 30: ...configure the ISDN PPP Interface Numbers that were automatically created according to the MaxVCs entered on the WAN Physical Configuration screen Max Xmit Unit Modifiable Displays the maximum packet size that can be transmitted on the selected interface The default setting for this field is 1526 for PPP The maximum setting is 8191 WAN INTERFACE CONFIGURATION Interface Number 004 Max Xmit Unit 1526...

Страница 31: ...a higher level of security CCP Enable Toggle Compression Control Protocol Enable Use the space bar to toggle CCP on and off The command enables the Data Compression mechanism available on the host platform Data compression offers up to a four to one traffic compression ratio increasing performance Comp Ratio Read Only Displays the Compression Ratio the uncompressed to compressed data ratio CKT Rea...

Страница 32: ...d displays UP active or DOWN inactive SAVE Command Used to save the configuration changes Automatically reboots the host device PORTS 1 32 33 64 65 96 97 128 Command Displays the range shown in the table on this screen Use the SPACE bar and either BACKSPACE or DELETE key to toggle through the displays RETURN Command Used to return to the previous screen ...

Страница 33: ... up the back up SVC connection whenever the primary connection has failed and there is traffic to be forwarded across the back up SVC This example assumes the setup shown in Figure 3 5 using two CSX400s with primary connections using WPIM T1s WPIM E1 WPIM DDS or WPIM SY could also be used and with WPIM S T back up modules installed in each CSX400 The NT 1 is needed if the connection to the Telco c...

Страница 34: ...PIM S T in Local Management using the WAN Physical screen Begin the WPIM S T configuration by accessing the WAN Physical Configuration screen through Local Management Access the WAN Physical Configuration screen from the WAN Setup menu item that displays in the Setup Menu in Local Management Use the arrow keys to highlight the WAN Setup menu item then press ENTER The screen shown in Figure 3 6 dis...

Страница 35: ... arrow keys to highlight the MgrType Press the SPACE bar to select ISDN BRI then press ENTER 3 Use the arrow keys to highlight the SAVE command then press ENTER The message Save Done displays and Local Management saves the changes to memory The message REBOOT IN PROGRESS will also display and the host platform will automatically reboot SAVE WAN INT CONFIG RETURN Type S T WPIM 2 Mgr Type ISDN BRI M...

Страница 36: ...llowing steps 1 Use the arrow keys to highlight Interface Number Set the WAN connection Interface Number by typing the number of the interface to configure from the IF column then press ENTER 2 Use the arrow keys to highlight CCP Enable Press the SPACE bar to select On to enable CCP then press ENTER WAN INTERFACE CONFIGURATION Interface Number 004 Max Xmit Unit 1526 ProtMgrIface 3 Active Protocol ...

Страница 37: ...primary interface TIMETOCONNECT How long the system will wait in seconds before attempting to switch over to the backup interface Default is zero Allowed values are in increments of five seconds TIMETODISCONNECT How long the system will wait in seconds before attempting to switch over to the primary interface once the primary interface has been restored Default is 90 seconds Allowed values are in ...

Страница 38: ...ackup 3 4 Example 2 For answer mode only setbackup 3 to 3 Answer mode only is set This will set the backup interface to itself if the ISDN interface is to be used only as a dial in circuit i e answer mode only NOTE For any switched medium like ISDN there are two types of interfaces primary and secondary backup Primary interfaces automatically attempt to connect using DoD Because of this it is reco...

Страница 39: ...receive time out Example To set the receive time out to 180 seconds and the transmit side to 600 seconds for ISDN interface 4 use this command setidletimeout 4 180 600 3 2 5 Configure the D Channel Use the following command in Network Tools to set the switch type setswitchtype WANPORTNUM SWITCHTYPE WANPORTNUM If the WPIM S T occupies WAN port number one use 1 if it occupies port number two use 2 a...

Страница 40: ...esents the local number 01 01 is the fixed suffix Example 1 For the first WAN port to be configured for ISDN issue the command setisdnbri 1 555 1000 0555100001 5553000 0555300001 For the second WAN port to be configured issue the command setisdnbri 2 5551000 0555100001 5553000 0555300001 The command also allows for skipping or clearing any entry by using the key letters S or s to skip the field an...

Страница 41: ...he same end user twice e g Multilink The default is one profile per ISDN interface Use the Network Tools command setmaxprofiles IFACENUM MAXPROFILESNUM Example To set two profiles for ISDN interface 4 issue the command setmaxprofiles 4 2 3 2 8 Reset The host platform must be reset at this time Reset the host platform or disconnect the ISDN line this forces the Telco to re initialize Refer to the h...

Страница 42: ...must be operational or the backup configuration will not work isdnstat WANPORTNUM Use the Network Tools commands ct and dt to test the line by doing a manual connect or disconnect ct IFACENUM connects places a call for the interface designated dt IFACENUM disconnects hangs up the call These three Network Tools commands allow the user to check whether or not the ISDN line and profile s have been co...

Страница 43: ... following safety and electromagnetic compatibility EMC requirements Dimensions 1 94 H x 6 2 W x 15 06 D cm 762 H x 2 44 W x 5 93 D in Weight 113 6 g 4 ounces MTBF Predicted 200 000 hours Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 90 C 22 F to F Relative Humidity 5 to 95 non condensing Safety UL 1950 CSA C22 2 No 950 EN 60950 IEC 950 and 73 23 EEC Electromagnetic C...

Страница 44: ...INTERFACE CABLE PINOUTS The following are the cable pinouts for the WPIM S T RJ 45 network interface connector Table A 1 WPIM S T Network Interface Cable Pin Assignments Pin Signal 1 Not Used 2 Not Used 3 Transmit 4 Receive 5 Receive 6 Transmit 7 Not Used 8 Not Used ...

Страница 45: ...ransmitting traffic RX OFF Not receiving traffic YELLOW flashing Receiving traffic LNK OFF No WPIM or no link YELLOW solid Good link B1 and or B2 in Standby GREEN solid Good link B1 and or B2 in Forwarding NOTE The following table is not currently supported but is supplied for future reference Check the Release Notes for the application of this table LED Color State STS 1 OFF B1 inactive or port d...

Страница 46: ...e following table is not currently supported but is supplied for future reference Check the Release Notes for the application of this information LED Color State LINK RED solid Nothing connected GREEN solid Link YELLOW flashing Traffic STS OFF No channels connected GREEN solid Either B channel connected YELLOW blinking Test Mode ...

Страница 47: ... If your equipment needs repair it should not be reconnected until it is repaired 4 If the telephone company finds that the equipment is exceeding tolerable parameters the telephone company can temporarily disconnect service although they will attempt to give you advance notice if possible 5 Under the FCC Rules no customer is authorized to repair this equipment This restriction applies regardless ...

Страница 48: ...any or an authorized agent It is the responsibility of the users requiring service to report the need for service to our Company or to one of our authorized agents Service can be obtained at Cabletron Systems Technical Support Address Cabletron Systems Inc 35 Industrial Way Rochester NH 03867 0505 Phone 603 332 9400 Internet mail support cabletron com ...

Страница 49: ...cted complies with Part 68 of the Commission s rules except for the encoded analog content and billing protection specifications With respect to encoded analog content and billing protection I attest that all operations associated with the establishment maintenance and adjustment of the digital CPE with respect to encoded analog content and encoded billing information continuously complies with Pa...

Страница 50: ...orized representative using training materials and instructions provided by the manufacturer grantee of the equipment used to encode analog signals or c An independent training course e g trade school or technical institution recognized by the manufacturer grantee of the equipment used to encode analog signals or d In lieu of the proceeding training requirements the operator s maintainer s is are ...

Страница 51: ...ary 8 Zero Substitution line coding utilized with ESF Expanded Super Frame Insures the ones density requirement for digital T carrier facilities in the public network while allowing 64 Kbps clear data per channel This encoding method is not supported by some Telcos BRI Basic Rate Interface minimum rate ISDN subscriber interface provides 2 B 1 D channels two 64 Kbps B Bearer channels and one 16 Kbp...

Страница 52: ...rmat in T 1 Uses 12 T 1 Frames to identify both the channel and the signaling bit DN Directory Number the telephone number for an ISDN line assigned by the telephone company DLCI Data Link Connection Identifier a unique virtual circuit identifier used in Frame Relay Identifies a given frame as being from a particular logical link The DLCI has only local significance DN Directory Number addresses a...

Страница 53: ...DLC High Level Data Link Control layer 2 link layer full duplex protocol derived from SDLC INV HDLC A form of zero suppression in which all zeros in the HDLC packet are changed to ones and all ones are changed to zeros ISDN Integrated Services Digital Network Allows point to point connections at 64 Kbps or 128 Kbps when necessary and disconnects the line when not in use With this service the user ...

Страница 54: ...ystems products designed to fit in a Multi Media Access Center MMAC hub Multi Link Protocol MLP Defined in RFC 1717 a protocol that defines performing inverse multiplexing on the TCP IP point to point protocol PPP ie the ability to use multiple serial WAN channels for transferring one data stream With MLP a user can send and receive data over both B channels in an ISDN BRI connection MUX Multiplex...

Страница 55: ...e service frames from WAN links while ensuring that the network continues to operate normally used to minimize dial up connection time SVC Switched Virtual Circuit A connection across a network established on an as needed basis The connection lasts only for the duration of the transfer and is the datacom equivalent of a dialed phone call T1 A Bell System term that refers to the physical carrier us...

Страница 56: ...pendix C WAN Terms and Acronyms C 6 WPIM S T User s Guide WPIM WAN Physical Interface Module Cabletron Systems modules that provide connectivity functionality for WAN modules such as the BRIM W6 or CSX400 ...

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