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Chapter 4. Defining Packet Endpoints

61200263L1-1.1

ATLAS Frame Relay User Manual

4-11

Choosing the Signaling Role for Backup Links

Carefully choose the

IGNALING

OLE

of a packet endpoint that is config-

ured with backup sublinks. Please note that the ADTRAN IQ and Express
families of products do NOT support frame relay signaling on the backup
sublink.

IGNALING

YPE

Controls the frame relay signaling type that operates on this packet end-
point.

UTO

Detects the signaling type of the device on the other end of the circuit
and sets this packet endpoint to the same signaling type.

NNEX

Transmits and responds to ITU-T Q.933-A standards.

NNEX

Transmits and responds to ANSI T1.617-D standards.

LMI

Transmits and responds to Group of Four specifications.

SER

OLL

IMER

(T391)

Sets the polling interval to the network in seconds.

SER

OLLS

TATUS

(N391)

Controls how many link integrity polls occur between full status polls.

SER

VENT

HRESHOLD

(N392)

Sets the number of bad polling events that will cause the link to be declared
down in N393 Polls.

For cases where...

Set
S

IGNALING

OLE

to...

The backup sublink is connected to a switched network (e.g.,
ISDN DBU), and the remote device DOES NOT support frame
relay signaling.

The remote device DOES support signaling on the backup
sublink.

OTH

The backup sublink is a dedicated connection to the remote
device, and the network is Private Frame Relay.

OTH

The backup sublink is a dedicated connection to the remote
device, and the network is Public Frame Relay.

SER

Содержание ATLAS

Страница 1: ...ATLAS Frame Relay User Manual Part Number 1200263L1 1 61200263L1 1 1D May 2000...

Страница 3: ...Model Related to Process of Moving Data Packet 2 3 Frame Relay 2 3 Virtual Circuits 2 3 PVC Physical Connections 2 4 Data Link Connection Identifier DLCI 2 5 User to Network Interface 2 5 Local Manage...

Страница 4: ...col 4 5 Link Stats Frame Relay 4 5 Link Stats TBOP 4 6 Link Stats PPP 4 7 Sublink Stats 4 8 Config 4 9 Endpnt Name 4 9 Protocol 4 9 Config 4 9 Choosing the Signaling Role for Backup Links 4 11 Sublink...

Страница 5: ...ng Network ATLAS as the Central Site Router 6 2 Example 2 IP Routing Network External Routers 6 4 Example 3 Private Frame Relay Network ATLAS Central Site Router 6 6 Example 4 Public Frame Relay Netwo...

Страница 6: ...Table of Contents vi ATLAS Frame Relay User Manual 61200263L1 1 1 Interval Day Link 7 3 Sublink 7 5 Appendix A Troubleshooting A 1 Appendix B Glossary B 1 Index Index 1...

Страница 7: ...lay 4 10 Figure 4 10 Config Config Menu Tree PPP 4 13 Figure 4 11 Sublinks Menu Tree 4 15 Figure 4 12 Test Menu Tree 4 19 Figure 4 13 Endpnt Count Menu Tree 4 21 Figure 4 14 Endpnts Sort Menu Tree 4 2...

Страница 8: ...nfiguring Sublinks 6 9 Figure 6 21 Menu for Connecting Packet Data 6 9 Figure 6 22 Menu for Configuring Dial Plan 6 9 Figure 6 23 Menu for Connecting Packet Endpoints 6 9 Figure 6 24 Private Frame Rel...

Страница 9: ...nfiguring Backup Signaling Sublink 6 18 Figure 6 50 Menu for Making the Packet Connections 6 19 Figure 6 51 Menu for Connecting Packet Endpoints to Physical Ports 6 19 Figure 6 52 Menu for Connecting...

Страница 10: ...List of Figures x ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 11: ...of Tables Table 1 1 Frame Relay Specifications 1 3 Table 2 1 Seven Layer OSI Model 2 1 Table 2 2 LMI Group of Four DLCI Assignments 2 6 Table 2 3 Annex A and Annex D DLCI Assignments 2 6 Table 4 1 Sug...

Страница 12: ...List of Tables xii ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 13: ...ical point to point applications by using virtual connections within the frame relay network and by combining those connections into a single physical connection at each location Frame relay providers...

Страница 14: ...re lay network and the integral 10BaseT Ethernet port Concentrates IP traffic from a public or private frame relay network to one or more serial ports V 35 The protocol passed over the serial port is...

Страница 15: ...490 for IP and LLC2 PVC support 1000 PVCs Congestion control FECN BECN Discard eligible DE Quality of service QOS Prioritization on a per PVC basis Testing ADTRAN proprietary PVC loopback Round trip d...

Страница 16: ...Chapter 1 Introducing ATLAS Frame Relay 1 4 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 17: ...not the application but the interface Layer 6 Presentation Provides transparent communication by creating code and syntax compatibility between systems Layer 5 Session Takes care of the communication...

Страница 18: ...ds to know the address of the person receiving the letter to pass the letter down to the next layer The letter writer has no knowledge of the details of mailbags and moving letters between post office...

Страница 19: ...ed from the frame relay provider PVCs are always active even when no data is being transmitted SVC bandwidths are created and used only when needed and allow for ne gotiation of the bandwidth paramete...

Страница 20: ...or each PVC Each of the PVCs could connect to a dif ferent physical location at the other end of the circuit Figure 2 2 illustrates a frame relay network topology Figure 2 1 Three Virtual Circuits in...

Страница 21: ...25 and sends them out to Frame Relay Switch B Frame Relay Switch B then takes the frame packets from DLCI 225 and places them on DLCI 35 for delivery to the site B router From this example you can see...

Страница 22: ...efines how much bandwidth the customer is guaranteed during normal network operation Any data transmitted above this pur chased rate is discard eligible DE by the network That is this data can be disc...

Страница 23: ...on indicates to the frame relay equipment that the frame relay switch is experi encing difficulty and that the frame relay device should begin to flow control its traffic Figure 2 4 shows an example o...

Страница 24: ...ase the transmission rate of the link The ATLAS only supports the IP protocol over dedicated links As per RFC 1661 PPP comprises three main components 1 A method for encapsulating multi protocol datag...

Страница 25: ...y software for 30 continu ous days of operation Within this 30 day period you must fax the registra tion sheet to ADTRAN with the upgraded unit s serial number A unique permanent software key for the...

Страница 26: ...rary license key you must reboot the system to enable Frame Relay ATLAS will automatically prompt for a reboot when a Frame Relay license key is installed Instructions for Completing the Fax Form Step...

Страница 27: ...5 Enter the serial number faxed from ADTRAN into the SERIAL NUMBER field 6 Continuously press the left arrow key until you see a message asking to confirm the change Enter Y 7 End the Telnet session...

Страница 28: ...Chapter 3 Enabling Frame Relay 3 4 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 29: ...o defining packet endpoints you must also configure the phys ical port before it can run frame relay see Chapter 5 For a detailed look at configuring frame relay connections refer to Chapter 6 Frame R...

Страница 30: ...CONFIG TEST ENDPNT COUNT and ENDPNTS SORT STATUS STATUS submenus display the status of each packet endpoint including the packet endpoint name ENDPNT NAME the protocol type PROT the signal ing role S...

Страница 31: ...UNI interface BOTH Indicates that the packet endpoint is operating in Network to Network Interface NNI mode SIG TYPE Read Security 5 Displays the frame relay signaling type used on this packet endpoin...

Страница 32: ...This packet endpoint is in this state when we have received the peer s acknowledgement to our terminate request this will go to the initial state STOPPING This packet endpoint is in this state when w...

Страница 33: ...e 4 9 Displays layer 2 performance statistics see Figure 4 4 The statistics fields for frame relay reflect the total count since last cleared Descriptions for each of these fields begin following the...

Страница 34: ...ket endpoint LINK INTEGRITY STATUS TX Number of link integrity polls transmitted by this packet endpoint LINK INTEGRITY STATUS RX Number of link integrity polls received by this packet endpoint CLEAR...

Страница 35: ...4 6 Descriptions for each of these fields begin following the menu tree Figure 4 6 PPP Link Stats Menu Tree LCP STATE This reflects the LCP layer state IPCP This shows the UP if PPP IP control has ne...

Страница 36: ...e by a full status poll and also indicates if the PVC is in backup mode UP PVC is up active DOWN PVC is down inactive UP BU PVC is up but in backup mode DOWN BU PVC is down and in backup mode TX PCKTS...

Страница 37: ...port FRAME RELAY configures this packet endpoint to frame relay TBOP configures this packet endpoint as transparent bit oriented protocol PPP configures this packet endpoint as point to point protoco...

Страница 38: ...and auto matically sets this packet endpoint to the appropriate value BOTH Operates in NNI mode NETWORK Acts as the network side of the UNI interface USER Acts as the user side of the UNI interface O...

Страница 39: ...s and responds to ANSI T1 617 D standards LMI Transmits and responds to Group of Four specifications USER POLL TIMER T391 Sets the polling interval to the network in seconds USER POLLS PER STATUS N391...

Страница 40: ...SHOLD N392 Sets the number of bad polling events that will cause the link to be declared down in N393 Polls NET EVENT WINDOW SIZE N393 Defines the number of poll events in each monitored window If the...

Страница 41: ...ols EAP is selected when you will authenticate the peer only using the EAP authentication protocol RX AUTHENTICATION This selects the different types of authentication to use to authenticate the peer...

Страница 42: ...protocol ON or OFF DEBUG LOG The following events can be viewed in the event log when PPP events have been turned to Info LCP DEBUGGING This turns on LCP negotiation debugging IPCP DEBUGGING This tur...

Страница 43: ...ts on this PVC will get a num bered tag so that ADTRAN IQ products can detect lost packets in the frame relay network Only turn this option ON if there is an ADTRAN IQ capable product on the other end...

Страница 44: ...the state of this DLCI is reported to any packet connec tions within ATLAS attempting to send or receive data on this DLCI AUTO Passes the state as reported by the frame relay switch Set DLCI STATE t...

Страница 45: ...SELECTION Allows you to define a sublink as a primary or a backup sublink PRI MARY defines a normal sublink and includes the menus ENABLE BACKUP SUPPORT BACKUP PACKET ENDPT and BACKUP SUBLINK BACKUP...

Страница 46: ...switch criteria must be met before service is switched to the backup circuit RESTORE DELAY IN SECONDS The amount of time within which the criteria for switching to backup are reached before service i...

Страница 47: ...ons map s Switched packet connection in the dial plan u Used by one or more packet switch connections or packet voice entries TEST Provides menus for controlling options and settings for packet endpoi...

Страница 48: ...following DURATION field shows the time remaining in the current test DURATION Shows the duration in seconds for the fixed duration test RESULTS MN AV MX DLY Displays the minimum average and maximum...

Страница 49: ...urity 3 Read Security 5 Provides sorting options see the menu tree in Figure 4 14 SORTING BY NAME sorts packet endpoints alphabetically by name If you do not want to sort packet endpoints set this opt...

Страница 50: ...the option ROUTER Additionally a router option is available in this pull down menu The router is the internal ATLAS router and can be used multiple times within the PACKET CNCTS menu SUBLINK Write Se...

Страница 51: ...es data source TO Indicates data destination CNCTS SORT Determines the order in which connections are displayed within PACKET CNCTS see the menu tree in Figure 4 16 Options include FROM PKT ENDPT SUBL...

Страница 52: ...Chapter 4 Defining Packet Endpoints 4 24 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 53: ...hat was created within the PACKET MANAGER MENU To nail the end point to a service go to DEDICATED MAPS and pick a physical slot FROM SLT and port PORT PEP for the data Assign the DS0s FROM CONFIG and...

Страница 54: ...e configuration IFCE CONFIG parameters vary depend ing on whether a specific packet link endpoint or the GROUP option is selected Figure 5 3 Port PEP Options in the Dial Plan SIG Write security 3 Read...

Страница 55: ...d security 5 Defines the number dialed to originate a call OUTGOING CALL TYPE Write security 3 Read security 5 Selects the terminating resource type either DIGITAL 64K or DIGITAL 56K REDIAL TIMER Writ...

Страница 56: ...DSHAKE is required to interoperate with ADTRAN IQ and Express family products It enables the association of incoming calls with packet endpoints in cases where there is a single call in number hunt gr...

Страница 57: ...field The table format changes based on the selected routing option See Figures 5 7 through 5 9 For each case CALL PARAMS contain OUTDIAL CALLER ID SOURCE ID and MIN MAX DS0S as described above Figure...

Страница 58: ...RM Refer to the ATLAS 800PLUS User Manual for details on determining NETWORK TERM or USER TERM see also Network Term on page 5 8 and User Term on page 5 8 Once this selection is made a number of field...

Страница 59: ...ial silence code during periods of silence Both endpoints must agree to use silence suppression By default silence sup pression is DISABLED To prohibit silence frames from transmitting and to decrease...

Страница 60: ...ide DID digits This field only displays if DIRECT INWARD DIALING see page 5 7 is set to Disabled and NETWORK TERM see page 5 8 is selected USER TERM DID DIGITS TRANSFERRED Write Security 3 Read Securi...

Страница 61: ...ATLAS to Support Packet Data Configuration The general procedure for configuring the ATLAS depicted in Figure 6 1 is as follows 1 From PACKET MANAGER PACKET ENDPNTS CONFIG create three packet endpoin...

Страница 62: ...nection from the XYZ service provider and the internal router terminates the IP traffic To re create this example follow the process discussed below Figure 6 2 IP Routing Network with ATLAS as the Cen...

Страница 63: ...CNCTS connect the IP traffic to the internal router see Figure 6 5 Figure 6 5 Menu for Connecting IP Traffic to Internal Router Step 4 From DEDICATED MAPS CREATE EDIT MAPS CONNECTS attach the packet e...

Страница 64: ...nection from the XYZ service provider and switches the PVCs to the external router To re create this example follow the process discussed below Figure 6 7 IP Network With External Routers Step 1 From...

Страница 65: ...ring Packet Endpoints 2 Sublinks Step 3 Make the packet connections see Figure 6 11 Figure 6 11 Menu for Making the Packet Connections Step 4 Connect the packet endpoints to the physical port The serv...

Страница 66: ...he discussion of DACSing in the ATLAS User Manual To re create this example follow the process discussed below Figure 6 13 Private Frame Relay Network ATLAS Central Site Router Step 1 From PACKET MANA...

Страница 67: ...al 6 7 Step 3 From PACKET MANAGER PACKET CNCTS connect the packet endpoints see Figure 6 16 Figure 6 16 Menu for Connecting Packet Endpoints Step 4 Connect the packet endpoint to the physical interfac...

Страница 68: ...e central site router and performs voice switching To re create this example follow the process discussed below Figure 6 18 Public Frame Relay Network Step 1 From PACKET MANAGER PACKET ENDPNTS CONFIG...

Страница 69: ...ket data to the inter nal router see Figure 6 21 Figure 6 21 Menu for Connecting Packet Data Step 4 Configure the dial plan for packet voice Refer to ATLAS User Manual for de tail on dial plan configu...

Страница 70: ...te Frame Relay Network Using Compressed Voice Step 1 From PACKET MANAGER PACKET ENDPNTS CONFIG create the packet end points create a frame relay endpoint for the private frame relay link and create a...

Страница 71: ...BOP data path between the DS0 containing the signaling information and the private frame relay re source see Figure 6 27 Figure 6 27 Menu for Connecting the TBOP Endpoints Step 4 Connect packet endpoi...

Страница 72: ...onnected to the frame relay endpoint see Figure 6 29 Figure 6 29 Connecting PBX DS0 to Frame Relay Endpoint Step 4 b Frame Relay Connection Details Connecting the frame relay endpoint to the private f...

Страница 73: ...nal router In the event of problems in the connections to the XYZ public frame relay provider each device can redirect traffic to a backup network In this example each TSU IQ uses an ISDN DBU module t...

Страница 74: ...to the frame relay network see Figures 6 33 through 6 37 Figure 6 33 Menu for Configuring Packet Endpoint 1 Server Sublinks Figure 6 34 Menu for Configuring Packet Endpoint 2 XYZ Network Sublinks Fig...

Страница 75: ...Figure 6 39 Figure 6 39 Menu for Making the Packet Connections Step 5 Connect the packet endpoints to the physical port The server connects to an Nx56 64 module and the frame relay network connects to...

Страница 76: ...ion Step 8 Configure the PRI under the NETWORK TERM list of the dial plan see Figure 6 43 Add three entries to the outgoing accept number list 454 111 9999 545 222 8888 and 555 333 7777 Figure 6 43 Me...

Страница 77: ...Boston requires a similar configuration Figure 6 44 Private Frame Relay Network with Dedicated Backup Step 1 Create the packet endpoints two frame relay endpoints for the private frame relay links an...

Страница 78: ...46 Menu for Configuring Sublinks Step 3 Configure the sublinks for the data backup link see Figure 6 47 Figure 6 47 Menu for Configuring Sublinks Step 4 Configure the backup sublinks for use as backu...

Страница 79: ...PEP field is the BOSTON_VOICE packet endpoint Figure 6 51 Menu for Connecting Packet Endpoints to Physical Ports Step 6 a The TBOP endpoint is mapped to DS0 24 of the PBX connection All 24 DS0s of co...

Страница 80: ...process discussed below Figure 6 53 Private Frame Relay Network with Dedicated Backup Step 1 From PACKET MANAGER PACKET ENDPOINTS CONFIG create the packet end point see Figure 6 54 Figure 6 54 Menu f...

Страница 81: ...0 0 0 and the Far End Address can be the peer s address this is not needed since PPP will negotiate the peer s IP address see Figure 6 57 Figure 6 57 Menu for Configuring Backup Voice Sublink Step 5...

Страница 82: ...Chapter 6 Frame Relay Configuration Examples 6 22 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 83: ...IQ STATISTICS see the menu tree in Figure 7 1 Figure 7 1 Frame Relay IQ Menus ENABLE IQ STATS Globally enables and disables IQ statistics gathering IQ statistics are only gathered when this option is...

Страница 84: ...d name of the sublink up to 15 characters DLCI Displays the Data Link Connection Identifier circuit number ENABLE Indicates collection of IQ data for the target DLCI CONFIG Sets the parameters for IQ...

Страница 85: ...x Thru Avg Rx Thru Max Rx Util Max Rx Util Avg Rx Util Avg Rx Util Tx Frames Tx Frames Tx Bytes Tx Bytes Max Tx Thru Max Tx Thru Avg Rx Thru Avg Rx Thru Max Tx Util Max Tx Util Avg Tx Util Avg Tx Util...

Страница 86: ...for the interval or day MAX TX UTIL The maximum utilization the port transmitted for the interval or day AVG TX UTIL The average utilization the port transmitted for the interval or day PORT UA TIME T...

Страница 87: ...s than 5 bytes or greater than 4500 bytes EA VIOLATION The number of frames received with errors in the EA field of the frame relay header INACTIVE DLCI The number of frames received while the PVC is...

Страница 88: ...G TX UTIL The average utilization the PVC transmitted for the interval or day PVC IA TIME Time in seconds the PVC has been in the inactive state for the interval or day RX FECN The number of FECNs the...

Страница 89: ...e minimum frame size the PVC transmitted for the interval or day MAX TX FRAME The maximum frame size the PVC transmitted for the interval or day AVG TX FRAME The average frame size the PVC transmitted...

Страница 90: ...Chapter 7 Using Frame Relay IQ 7 8 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 91: ...and RTS are active 2 If signals are inactive verify V 35 cable is connected to correct port 3 If cable is connected verify external DTE is powered on Packet endpoint not mapped From PACKET MANAGER PAC...

Страница 92: ...ows active If the DLCI is listed inactive and the packet endpoint is configured as User side of UNI the frame relay network has not activated this DLCI No data on DLCI 1 Verify in the PACKET MANAGER P...

Страница 93: ...ss BECN Backward Explicit Congestion Notification Sent to the device generating excessive frame relay traffic as a means to slow down the flow of data to the network Compare with FECN Bridge IP This i...

Страница 94: ...ction Identifier Identifies each virtual circuit within a shared physical channel EAP Extensible Authentication Protocol This is very much like CHAP but it has options about the encryp tion to be used...

Страница 95: ...when the hardware address is known ICMP Internet Control Message Protocol Specified in RFC 292 to provide diagnostic functions IP Internet Protocol A protocol which provides for transmitting blocks o...

Страница 96: ...n N393 Defines the number of polls that make up the window used by N392 to determine if a link is opera tional OSI Open System Interconnection A standard defined by ISO and the ITU T to allow interope...

Страница 97: ...er information Routing Metric The method by which a routing algorithm determines that one route is better than another This infor mation is stored in routing tables Such tables include reliability del...

Страница 98: ...d by RFC 768 for transmission of data without acknowledgment or error control UNI User to Network Interface Defines the interface between the CPE and the frame relay providers switch Voice Compression...

Страница 99: ...frame relay upgrade features 1 2 installing a permanent license key 3 3 installing the temporary license key 3 2 obtaining the permanent license key 3 2 router option 1 2 2 2 specifications 1 2 G Gro...

Страница 100: ...2 PKTENDPT PRT PEP 5 2 PKTENDPT SIG 5 2 PKTENDPT SLOT SVC 5 2 PRT LNK 5 6 SIG 5 6 SIGNALING METHOD 5 7 SILENCE SUPPRESSION 5 7 SLOT SVC 5 6 SOURCE ID 5 7 5 8 TRUNK NUMBER 5 8 VOICE COMPRESSION 5 7 VOI...

Страница 101: ...BLINK 4 17 ENABLE BACKUP SUPPORT 4 17 PRIMARY PACKET ENDPT 4 17 PRIMARY SUBLINK 4 17 PROT 4 3 PROTOCOL Config 4 9 PROTOCOL Packet Cncts 4 23 PROTOCOL Performance 4 5 PROTOCOL Test 4 19 PVC IA TIME 7 6...

Страница 102: ...7 6 TX FECN 7 6 TX FRAMES Interval Day 7 4 TX FRAMES Sublink 7 6 TX FULL STAT 7 4 TX LI ONLY 7 5 TX PACKETS 4 5 TX PACKETS TBOP Link Stats 4 6 TX PCKTS 4 8 USAGE 4 19 USER BAD EVENT THRESHOLD N392 4 1...

Страница 103: ...ATLAS Frame Relay User Manual Index 5 U UNI signaling 2 5 ANSI T1 617 D Annex D 2 5 ITU T Q 933 A Annex A 2 5 LMI Group of Four 2 5 user to network interface 2 5 V virtual circuits 2 3 voice compressi...

Страница 104: ...Index Index 6 ATLAS Frame Relay User Manual 61200263L1 1 1...

Страница 105: ...pair is needed Technical Support will coordinate with the Custom and Product Service CAPS department to issue an RMA number For information regarding equipment currently in house or possible fees asso...

Страница 106: ......

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