ADTRAN ATLAS User manual

ATLAS Frame Relay
User Manual
Part Number 1200263L1-1
61200263L1-1.1D
May 2000

901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
[phone]
© 2000 ADTRAN, Inc.
All Rights Reserved.
Printed in U.S.A.

61200263L1-1.1 ATLAS Frame Relay User Manual iii
Table of Contents
ListofFigures ..........................................................................vii
ListofTables........................................................................... xi
Chapter1 IntroducingATLASFrameRelay..............................................1-1
FrameRelayOverview.................................................................. 1-1
FrameRelayFeatures................................................................... 1-2
Specifications.......................................................................... 1-2
Chapter2 TechnologyOverview ....................................................... 2-1
OSIModel ............................................................................2-1
Example1: OSIModelRelatedtoProcessofMailingaLetter................................. 2-2
Example2: OSIModelRelatedtoProcessofMovingDataPacket.............................2-3
FrameRelay ........................................................................... 2-3
VirtualCircuits..................................................................... 2-3
PVCPhysicalConnections........................................................ 2-4
DataLinkConnectionIdentifier(DLCI)................................................ 2-5
User-to-NetworkInterface ........................................................... 2-5
LocalManagementInterface(LMI) ................................................ 2-6
AnnexAandAnnexD........................................................... 2-6
CommittedInformationRate(CIR).................................................... 2-6
ManagingNetworkCongestion....................................................... 2-7
TBOP................................................................................. 2-8
PPP .................................................................................. 2-8
LinkControlProtocol................................................................ 2-8
NetworkControlProtocols........................................................... 2-8
Chapter3 EnablingFrameRelay ....................................................... 3-1
InstallingtheTemporaryLicenseKey..................................................... 3-2
ObtainingthePermanentLicenseKey .................................................... 3-2
InstallingthePermanentLicenseKey ..................................................... 3-3

Table of Contents
iv ATLAS Frame Relay User Manual 61200263L1-1.1
Chapter 4 Defining Packet Endpoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Overview..............................................................................4-1
Passwords .............................................................................4-1
NavigatingtheTerminalMenus ..........................................................4-1
ThePacketManagerMenu...............................................................4-2
PacketEndpnts.........................................................................4-2
Status..............................................................................4-2
EndpntName ...................................................................4-2
Prot............................................................................4-3
SigRole.........................................................................4-3
SigType........................................................................4-3
Active(FrameRelay).............................................................4-3
Active(PPP).....................................................................4-3
CurrentPort.....................................................................4-4
Performance........................................................................4-5
EndpntName ...................................................................4-5
Protocol ........................................................................4-5
LinkStats(FrameRelay)..........................................................4-5
LinkStats(TBOP)................................................................4-6
LinkStats(PPP)..................................................................4-7
SublinkStats ....................................................................4-8
Config .............................................................................4-9
EndpntName ...................................................................4-9
Protocol ........................................................................4-9
Config..........................................................................4-9
ChoosingtheSignalingRoleforBackupLinks ..................................4-11
Sublinks.......................................................................4-15
SublinksExample...............................................................4-18
Usage .........................................................................4-19
Test...............................................................................4-19
EndpntName ..................................................................4-19
Protocol .......................................................................4-19
Sublink........................................................................4-20
EndpntCount......................................................................4-21
EndpntsSort.......................................................................4-21
PacketCncts ..........................................................................4-22
From:PEP.........................................................................4-22
Sublink............................................................................4-22
To:PEP............................................................................4-22
Sublink............................................................................4-22
Protocol...........................................................................4-23
Config ............................................................................4-23
Conflict........................................................................4-23
From..........................................................................4-23
To.............................................................................4-23
CnctsSort.............................................................................4-23
FrameRelayIQ........................................................................4-23
Chapter5 ConnectingPacketEndpoints.................................................5-1
DedicatedMaps ........................................................................5-1
DialPlan ..............................................................................5-1

Table of Contents
61200263L1-1.1 ATLAS Frame Relay User Manual v
PktEndpt .......................................................................... 5-2
Slot/Svc........................................................................ 5-2
Prt/PEP........................................................................ 5-2
Sig............................................................................. 5-2
In#Accept...................................................................... 5-2
Out#Rej........................................................................ 5-2
IfceConfig...................................................................... 5-2
PktVoice........................................................................... 5-6
Slot/Svc........................................................................ 5-6
Prt/PEP........................................................................ 5-6
Sig............................................................................. 5-6
In#Accept...................................................................... 5-6
Out#Rej........................................................................ 5-6
IfceConfig...................................................................... 5-6
CallerID....................................................................... 5-7
SourceID....................................................................... 5-7
NetworkTerm...................................................................... 5-8
DIDDigitsTransferred........................................................... 5-8
DIDPrefix...................................................................... 5-8
TrunkNumber.................................................................. 5-8
UserTerm .........................................................................5-8
DIDDigitsTransferred........................................................... 5-8
CallerIDNumber............................................................... 5-8
SourceID....................................................................... 5-8
Chapter6 FrameRelayConfigurationExamples.......................................... 6-1
Example1: IPRoutingNetwork—ATLASastheCentral-SiteRouter..........................6-2
Example2: IPRoutingNetwork—ExternalRouters......................................... 6-4
Example3: PrivateFrameRelayNetwork—ATLASCentral-SiteRouter.......................6-6
Example4: PublicFrameRelayNetwork—IPDataandPacketVoice..........................6-8
Example5: PrivateFrameRelayNetwork—PacketVoice................................... 6-10
Example6: IPRoutingNetworkwithDialBackup......................................... 6-13
Example7: PrivateframerelayNetworkwithDedicatedBackup............................6-17
Example8: IPRoutingUsingPPP....................................................... 6-20
Chapter7 UsingFrameRelayIQ ....................................................... 7-1
FrameRelayIQ ........................................................................ 7-1
EnableIQStats ..................................................................... 7-1
PortEnables........................................................................ 7-1
Name.......................................................................... 7-1
EnablePort..................................................................... 7-2
AllSublinks .................................................................... 7-2
Sublinks........................................................................ 7-2
Config............................................................................. 7-2
CurrentPIVs.................................................................... 7-2
IntervalPeriod.................................................................. 7-2
MaxDays ...................................................................... 7-2
MaxIntervals................................................................... 7-2
ViewIQStatistics................................................................... 7-3

Table of Contents
vi ATLAS Frame Relay User Manual 61200263L1-1.1
Interval/Day(Link).............................................................7-3
Sublink.........................................................................7-5
AppendixA Troubleshooting..........................................................A-1
AppendixB Glossary................................................................. B-1
Index..............................................................................Index-1

61200263L1-1.1 ATLAS Frame Relay User Manual vii
List of Figures
Figure1-1. TypicalPoint-to-PointCircuit................................................ 1-1
Figure1-2. FrameRelayCircuit........................................................ 1-2
Figure2-1. ThreeVirtualCircuitsinOnePhysicalCircuit.................................. 2-4
Figure2-2. FrameRelayNetworkusingVirtualCircuits................................... 2-4
Figure2-3. NetworkUsingDLCIAssignments...........................................2-5
Figure2-4. NetworkCongestionandFlowControl....................................... 2-7
Figure4-1. PacketManagerMenu...................................................... 4-2
Figure4-2. StatusMenuTree.......................................................... 4-2
Figure4-3. PerformanceMenuTree .................................................... 4-5
Figure4-4. FrameRelayLinkStatsMenuTree ...........................................4-5
Figure4-5. TBOPLinkStatsMenuTree................................................. 4-6
Figure4-6. PPPLinkStatsMenuTree................................................... 4-7
Figure4-7. FrameRelaySublinkStatsMenuTree......................................... 4-8
Figure4-8. ConfigMenuTree.......................................................... 4-9
Figure4-9. Config/ConfigMenuTree(FrameRelay)..................................... 4-10
Figure4-10. Config/ConfigMenuTree(PPP)............................................ 4-13
Figure4-11. SublinksMenuTree....................................................... 4-15
Figure4-12. TestMenuTree...........................................................4-19
Figure4-13. EndpntCountMenuTree.................................................. 4-21
Figure4-14. EndpntsSortMenuTree................................................... 4-21
Figure4-15. PacketConnectsMenu..................................................... 4-22
Figure4-16. CnctsSortMenu.......................................................... 4-23
Figure5-1. DedicatedMapsMenu...................................................... 5-1
Figure5-2. DialPlanMenu............................................................5-1
Figure5-3. Port/PEPOptionsintheDialPlan ...........................................5-2
Figure5-4. PacketLinkInterfaceConfiguration.......................................... 5-3
Figure5-5. PacketLinkInterfaceConfigurationwithFRBackupSupport.................... 5-3
Figure5-6. PacketLinkGROUPInterfaceConfiguration................................... 5-3
Figure5-7. CallRoutingTableforRoutingUsingIncomingNumber........................ 5-5
Figure5-8. CallRoutingTableforRoutingUsingCallPartyNumber .......................5-5
Figure5-9. CallRoutingTableforRoutingUsingDBUHandshake ......................... 5-5
Figure5-10. PacketSwitchedVoiceOptions..............................................5-6
Figure5-11. InterfaceConfigurationPanel................................................ 5-6
Figure6-1. ATLAStoSupportPacketDataConfiguration................................. 6-1

List of Figures
viii ATLAS Frame Relay User Manual 61200263L1-1.1
Figure6-2. IPRoutingNetworkwithATLASastheCentral-SiteRouter......................6-2
Figure6-3. MenuforCreatingPacketEndpoints..........................................6-2
Figure6-4. MenuforCreatingSublinksorDLCIs.........................................6-2
Figure6-5. MenuforConnectingIPTraffictoInternalRouter...............................6-3
Figure6-6. MenuforAttachingPacketEndpointtoPhysicalInterface .......................6-3
Figure6-7. IPNetworkWithExternalRouters............................................6-4
Figure6-8. MenuforCreatingthePacketEndpoints.......................................6-4
Figure6-9. MenuforConfiguringPacketEndpoints(1)Sublinks............................6-5
Figure6-10. MenuforConfiguringPacketEndpoints(2)Sublinks............................6-5
Figure6-11. MenuforMakingthePacketConnections......................................6-5
Figure6-12. MenuforConnectingPacketEndpointstoPhysicalPort.........................6-5
Figure6-13. PrivateFrameRelayNetwork—ATLASCentral-SiteRouter......................6-6
Figure6-14. MenuforCreatingPacketEndpoints..........................................6-6
Figure6-15. MenuforCreatingSublinks..................................................6-6
Figure6-16. MenuforConnectingPacketEndpoints........................................6-7
Figure6-17. MenuforConnectingPacketEndpointtoPhysicalInterface......................6-7
Figure6-18. PublicFrameRelayNetwork.................................................6-8
Figure6-19. MenuforCreatingPacketEndpoint...........................................6-8
Figure6-20. MenuforConfiguringSublinks...............................................6-9
Figure6-21. MenuforConnectingPacketData.............................................6-9
Figure6-22. MenuforConfiguringDialPlan..............................................6-9
Figure6-23. MenuforConnectingPacketEndpoints........................................6-9
Figure6-24. PrivateFrameRelayNetworkUsingCompressedVoice........................6-10
Figure6-25. MenuforCreatingPacketEndpoints.........................................6-10
Figure6-26. MenuforConfiguringSublinks..............................................6-11
Figure6-27. MenuforConnectingtheTBOPEndpoints....................................6-11
Figure6-28. MenuforConnectingPacketEndpointstoPhysicalLinks.......................6-11
Figure6-29. ConnectingPBXDS0toFrameRelayEndpoint................................6-12
Figure6-30. ConnectingFREndpointtoFRPrivateNetwork...............................6-12
Figure6-31. IPRoutingNetworkwithDialBackup........................................6-13
Figure6-32. MenuforCreatingthePacketEndpoints......................................6-13
Figure6-33. MenuforConfiguringPacketEndpoint1(Server)Sublinks......................6-14
Figure 6-34. Menu for Configuring Packet Endpoint 2
(XYZNetwork)Sublinks....................................................6-14
Figure 6-35. Menu for Configuring Packet Endpoint 3
(ChicagoBackup)Sublink ..................................................6-14
Figure 6-36. Menu for Configuring Packet Endpoint 4
(NewYorkBackup)Sublink.................................................6-14
Figure 6-37. Menu for Configuring Packet Endpoint 5
(BostonBackup)Sublink....................................................6-14
Figure6-38. MenuforConfiguringBackupSublink1......................................6-15
Figure6-39. MenuforMakingthePacketConnections.....................................6-15
Figure6-40. MenuforConnectingPacketEndpointstoPhysicalPort........................6-15
Figure6-41. MenuforAddingBackupPacketEndpointstotheDialPlan.....................6-16

List of Figures
61200263L1-1.1 ATLAS Frame Relay User Manual ix
Figure 6-42. Menu for Configuring the Switched Packet Endpoint
InterfaceConfiguration.................................................... 6-16
Figure6-43. MenuforConfiguringthePRIConnectionstothePSTN........................ 6-16
Figure6-44. PrivateFrameRelayNetworkwithDedicatedBackup.........................6-17
Figure6-45. MenuforCreatingPacketEndpoints ........................................ 6-17
Figure6-46. MenuforConfiguringSublinks.............................................6-18
Figure6-47. MenuforConfiguringSublinks.............................................6-18
Figure6-48. MenuforConfiguringBackupVoiceSublink ................................. 6-18
Figure6-49. MenuforConfiguringBackupSignalingSublink.............................. 6-18
Figure6-50. MenuforMakingthePacketConnections.................................... 6-19
Figure6-51. MenuforConnectingPacketEndpointstoPhysicalPorts....................... 6-19
Figure6-52. MenuforConnectingPacketEndpointstoPhysicalPorts....................... 6-19
Figure6-53. PrivateFrameRelayNetworkwithDedicatedBackup.........................6-20
Figure6-54. MenuforCreatingPacketEndpoints ........................................ 6-20
Figure6-55. MenuforConfiguringSublinks.............................................6-20
Figure6-56. MenuforConfiguringSublinks.............................................6-21
Figure6-57. MenuforConfiguringBackupVoiceSublink ................................. 6-21
Figure6-58. MenuforMakingthePacketConnections.................................... 6-21
Figure6-59. MenuforConnectingPacketEndpointstoPhysicalPorts....................... 6-21
Figure7-1. FrameRelayIQMenus ..................................................... 7-1
Figure7-2. ViewIQStatisticsMenuTree................................................ 7-3

List of Figures
x ATLAS Frame Relay User Manual 61200263L1-1.1

61200263L1-1.1 ATLAS Frame Relay User Manual xi
List of Tables
Table1-1. FrameRelaySpecifications.................................................... 1-3
Table2-1. Seven-LayerOSIModel....................................................... 2-1
Table2-2. LMI(GroupofFour)DLCIAssignments........................................2-6
Table2-3. AnnexAandAnnexDDLCIAssignments...................................... 2-6
Table4-1. SuggestedFragmentationValuesBasedonthePVCCIR.........................4-16

List of Tables
xii ATLAS Frame Relay User Manual 61200263L1-1.1

61200263L1-1.1 ATLAS Frame Relay User Manual 1-1
Chapter 1 Introducing ATLAS Frame
Relay
FRAME RELAY OVERVIEW
Frame relay is a packet-switched service that allows efficient transfer of
bursty traffic in a wide area network (WAN) environment (see also Frame Re-
lay on page 2-3). It offers lower-cost data transfer, when compared to typical
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 use a frame relay switch
to route the data on each virtual circuit to the appropriate destination.
Figure 1-1 and Figure 1-2 illustrate a conversion from a typical point-to-
point application to a frame relay application.
Figure 1-1. Typical Point-to-Point Circuit
Router
Router
Router
Router
PBX
PBX
PBX
PBX
Long Haul DDS
DDS
DDS

Chapter 1. Introducing ATLAS Frame Relay
1-2 ATLAS Frame Relay User Manual 61200263L1-1.1
Figure 1-2. Frame Relay Circuit
The ATLAS Frame Relay/Router option allows the ATLAS series of Inte-
grated Access Devices to act as a voice/data frame relay access device
(FRAD), a private network frame relay switch, a frame relay concentrator,
and an internal IP router. In addition, the ATLAS Frame Relay/Router op-
tion manages currently available bandwidth and switching applications.
FRAME RELAY FEATURES
The Frame Relay/Router option provides the following functions:
• Routes Internet Protocol (IP) traffic between a public or private frame 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 frame relay.
• Passes Systems Network Architecture (SNA), Bisync, and other legacy
protocols between a public or private frame relay network and an exter-
nal DTE running frame relay to ATLAS. (May require the HDLC Mod-
ule—P/N 1200222L1.)
• Performs voice compression/decompression (G.723.1) and interfaces to
either a Private Branch Exchange (PBX) or the Public Switched Tele-
phone Network (PSTN). (This feature requires an additional option
module, the VCOM Module—P/N 1200221L1.)
SPECIFICATIONS
Table 1-1 lists the specifications for the frame relay features.
Frame
Relay
Router
DDS
DDS
DDS
ATLAS 800
Router
Router
Router
T1
PBX
PBX
PBX
PBX
PLUS

Chapter 1. Introducing ATLAS Frame Relay
61200263L1-1.1 ATLAS Frame Relay User Manual 1-3
Table 1-1. Frame Relay Specifications
Option Feature Specification
Frame Relay
Packet throughput 7000 pkts/sec (minimum)
Management signaling
interfaces UNI (user and network)
NNI
Management signaling types ANSI T1.617-D (Annex D)
ITU-T Q.933-A (Annex A)
LMI (Group of four)
Auto
Encapsulation RFC 1490 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 delay measurement
SNMP support RFC 1315
IP Routing
Route discovery RIP V1
RIP V2
ICMP
ARP
IARP
UDP Relay
OSPF
Virtual connections supported 100 PVCs
SNMP support MIB II
Voice Compression
Algorithm G.723.1 or Netcoder (proprietary)
Number of channels supported Up to 64 compression channels
PCM coding MU-Law, A-Law (future)
Fax support 9600 bps
DTMF generation and
detection TIA 464A

Chapter 1. Introducing ATLAS Frame Relay
1-4 ATLAS Frame Relay User Manual 61200263L1-1.1

61200263L1-1.1 ATLAS Frame Relay User Manual 2-1
Chapter 2 Technology Overview
This chapter discusses the OSI Model, Frame Relay Protocol, and Transpar-
ent Bit Oriented Protocol (TBOP).
OSI MODEL
The Open Systems Interconnection (OSI) model is an internationally accept-
ed standard for communication between multiple vendors’ communication
equipment. It relies on a seven-layer model to allow communication be-
tween communication equipment. Table 2-1 describes these layers.
Table 2-1. Seven-Layer OSI Model
Layer Title Description
Layer 7 Application Contains functions for end-user services. These
include FTP, remote file access, and network
management. This is 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 facility
provided by the transport layer (layer 4). Allows
sessions to be established, recovered, and
terminated.
Layer 4 Transport Provides some error correction and end-to-end
flow control. Also decides best route for the
information being transmitted.
Layer 3 Network Determines the method for transmitting data and
also deals with routing the data between
networks. Moves data based on addressing.
Layer 2 Data Link Deals with procedures and protocols for
controlling the transmission line. Provides some
error detection and correction.
Layer 1 Physical Deals with the electrical, mechanical, and
functional control of sending data over the
transmission lines.

Chapter 2. Technology Overview
2-2 ATLAS Frame Relay User Manual 61200263L1-1.1
By defining standardinterfaces between each of the seven layers, anindivid-
ual layer only has to know about the interface to the layer above, to the layer
below, and to the same layer on the other end of the network. This interface
definition simplifies the process of networking.
TheRouterandFrameRelaysoftwareinATLASinvolveslayer3andlayer2
data processing. The OSI model is not limited to digital data networks, but
canbeextendedtosuchnetworksastheU.S.PostalService.Theexamples
belowshouldclarifytherolesofthefirstthreelayersandhowtheyinterface
with each other. Example 1 relates the OSI model to the process of mailing a
letter.
Example 1: OSI Model Related to Process of Mailing a Letter
Since the postal service specifies how mail is transferred between layers, the
person addressing the letter only needs 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 offices, but knows to place the letter in the mailbox so that the post of-
fice delivers the letter to the reader. The lower layers have no knowledge of
the letter, but take responsibility for getting it to the appropriate location.
Upper Layers Letters and Advertisements
Layer 3 Network Envelopes and Boxes
Layer 2 Data Link Mailbags
Layer 1 Physical Planes and Trucks
Send Process Receive Process
Person A writes a letter. Upper Layers Person B reads the letter.
Person A places the letter in
an envelope, addresses it to
person B, and puts envelope
in mailbox.
Layer 3
Person B opens envelope
and removes the letter.
The envelope is collected
from mailbox and placed
into a mailbag destined for
post office B.
Layer 2
The mailbag is opened and
the envelope is placed in
person B’s post office box.
A truck takes the mailbag
and drives to post office B. Layer 1
Roads and
Interstates
The truck delivers the
mailbag to post office B.

Chapter 2. Technology Overview
61200263L1-1.1 ATLAS Frame Relay User Manual 2-3
Example 2: OSI Model Related to Process of Moving Data
Packet
A more typical example of the OSI model involves moving a data packet
across an IP network.
FRAME RELAY
Frame relay is one of several layer 2 (data link) protocols that transport data
across a serial data network. These protocols also include Point-to-Point Pro-
tocol (PPP) and High-level Data Link Connection Protocol (HDLC). Frame
relay networks are composed of virtual circuits that connect customer loca-
tions. To reduce a customer’s overall monthly connection, multiple virtual
circuits could be delivered to the customer’s location over a single physical
connection.
Virtual Circuits
Virtual circuits can be either permanent (PVC) or switched (SVC). PVC
bandwidths are determined when the circuit is ordered 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 parameters during the circuit setup. SVCs are
currently unavailable from most frame relay providers, and ATLAS only
supports PVCs.
Upper Layers E-mail message
Layer 3 Network - IP/IPX
Layer 2 Data Link - Frame Relay/PPP
Layer 1 Physical - T1/DDS
Send Process Receive Process
Creates a data packet. Upper Layers Data packet is processed.
Wraps the data in an IP
packet, specifies the IP
address of the far end
computer, and determines the
appropriate route.
Layer 3
The IP wrapper is
removed and the data is
then passed to the upper
layers.
TheIPpacketisplacedinside
aframerelaypacketwiththe
appropriate DLCI and placed
on the correct DS-1.
Layer 2
The frame packet is
unwrapped and the IP
packet is sent to layer 3.
The frame relay packet is
placed in the appropriate
DS0s.
Layer 1
LEC and IXC
The frame relay packet is
removed and passed to
layer 2.

Chapter 2. Technology Overview
2-4 ATLAS Frame Relay User Manual 61200263L1-1.1
PVC Physical Connections
Figure 2-1 illustrates three PVCs being delivered over one physical circuit.
The frame relay switch within the frame relay provider’s circuit makes a
physical connection for 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 One Physical Circuit
Figure 2-2. Frame Relay Network using Virtual Circuits
PVCY
128 kbps
PVC X
768 kbps
PVC Z
32 kbps
Virtual circuitY
Virtual circuit X
A
Frame Relay/Router
D
Frame Relay/Router
Virtual circuit Z
C
Frame Relay/Router
B
Frame Relay/Router
Frame Relay
Network