Enterasys Networks Security Router X-PeditionTM - Manual (Page 20)

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Chapter 9: Configuring Frame Relay
Overview ......................................................................................................................................................... 9-1
Virtual Circuits .................................................................................................................................... 9-1
DLCIs.................................................................................................................................................. 9-1
DTEs................................................................................................................................................... 9-2
DCEs .................................................................................................................................................. 9-2
Frame Relay Features .................................................................................................................................... 9-3
Multi-Protocol Encapsulation .................................................................................................................... 9-3
Address Resolution .................................................................................................................................. 9-4
Dynamic Resolution Using Inverse ARP .................................................................................................. 9-4
Controlling Congestion in Frame Relay Networks .......................................................................................... 9-4
Rate Enforcement (CIR) - Generic Traffic Shaping .................................................................................. 9-4
Discard Eligibility (DE) Bit ........................................................................................................................ 9-5
Forward Explicit Congestion Notification (FECN) .................................................................................... 9-5
Backward Explicit Congestion Notification (BECN) .................................................................................. 9-5
Link Management Information (LMI) ............................................................................................................... 9-7
Sub-interfaces ................................................................................................................................................ 9-7
FRF.12 Fragmentation ................................................................................................................................... 9-8
End-to-End Fragmentation ....................................................................................................................... 9-8
User Configuration Commands ................................................................................................................ 9-8
Map-Class Configuration .................................................................................................................... 9-9
Show Running Configuration.............................................................................................................. 9-9
Displaying Statistics............................................................................................................................ 9-9
Reports and Alarms ................................................................................................................................. 9-9
Clear Statistics ......................................................................................................................................... 9-9
Interconnecting via Frame Relay Network .................................................................................................... 9-10
Configuring Frame Relay .............................................................................................................................. 9-11
Multi-point to Point-to-Point Example ..................................................................................................... 9-11
Chapter 10: Configuring Dialer Services
Overview of Dial Services ............................................................................................................................. 10-1
Dial Services Features ........................................................................................................................... 10-1
Asynchronous and Synchronous Support .................................................................................................... 10-2
AT Commands on Asynchronous Ports ................................................................................................. 10-2
V.25bis over Synchronous Interfaces .................................................................................................... 10-2
DTR Dialing for Synchronous Interfaces ................................................................................................ 10-3
Time of Day feature ................................................................................................................................ 10-3
Typical Use for Dial Services ................................................................................................................. 10-3
Ethernet Backup ..................................................................................................................................... 10-3
Implementing Dial Services .......................................................................................................................... 10-4
Dialer Profiles ......................................................................................................................................... 10-4
Dialer Interface ....................................................................................................................................... 10-5
Dialer Strings .......................................................................................................................................... 10-5
Dialer Pool .............................................................................................................................................. 10-5
Addressing Dialer Resources ................................................................................................................. 10-5
Configuring Encapsulation ..................................................................................................................... 10-6
ISDN Callback ........................................................................................................................................ 10-6
Configuring the Dialer Interface ........................................................................................................... 10-10
Creating and Configuring the Dialer Interface ................................................................................ 10-10
Configuring the Map Class ............................................................................................................. 10-11
Configuring the Physical Interface for the Dialer Interface ............................................................. 10-11
Sample Dialer Configuration ................................................................................................................ 10-11