Avaya Configuring WAN Lines Services Uživatelský manuál Strana 109
- Strana / 462
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Configuring BayStack DSU/CSU Services
308648-14.00 Rev 00
4-11
Digital Loopback (DL)
Digital Loopback mode tests the local DSU/CSU and the Telco circuit. The
DSU/CSU enters Digital Loopback mode when it receives a CCITT V.54 loop-up
code, or when configured.
In Digital Loopback mode, the DSU/CSU takes transmit data and converts it to
receive data. The DSU/CSU retimes and reshapes the received data, then transmits
the data back to the network. The remote facility transmits back to the router all
data it receives from the router. Figure 4-1
illustrates the operation of a Digital
Loopback test.
Figure 4-1. Digital Loopback
Remote Digital Loopback (RL)
Remote Digital Loopback (CCITT V.54 Loopback) tests the local DSU/CSU, the
Telco circuit, and the remote DSU/CSU. The local DSU/CSU sends a V.54
loop-up code to the remote DSU/CSU to initiate a digital loop, and then sends a
test pattern through the loop to check for returned data errors.When the remote
DSU/CSU receives the V.54 loop-up code, it provides the loopback path shown in
Figure 4-2
.
LS0025A
Network
AN/ANH/ARN
DSU
CSU
- Configuring WAN Line 1
- Services 1
- Trademarks 2
- Restricted Rights Legend 2
- Statement of Conditions 2
- Contents 5
- 308648-14.00 Rev 00 10
- Before You Begin 33
- Text Conventions 34
- Acronyms 35
- Hard-Copy Technical Manuals 38
- How to Get Help 39
- Chapter 1 41
- Getting Started 41
- Accessing Line Parameters 44
- shows where to 46
- Table 1-2. WAN Line Types 47
- Chapter 2 49
- Setting the BofL Timeout 54
- Setting Minimum Frame Spacing 62
- Setting the Signaling Method 67
- Setting the Line Coding 69
- Configuring KG84A Security 69
- LS0017A 70
- Setting the Retry Count 73
- Setting the Link Idle Timer 73
- Setting the Cable Type 74
- Setting the Retry Timer 75
- Setting a Priority 76
- Setting the Hold Down Time 77
- Setting the IFTF Pattern 78
- Resetting EIA Signal Status 91
- Chapter 3 93
- Asynchronous Services 93
- Setting the Baud Rate 96
- Setting the Idle Timer 97
- Chapter 4 99
- Configuring DSU/CSU Services 100
- Site Manager 101
- Setting the Option Mode 102
- Resetting the Router 103
- Configuring Line Availability 104
- Resetting the CQMS Counters 105
- Setting the Poll Rate 105
- Caution: 106
- Using the BCC 107
- Using Site Manager 107
- AN/ANH/ARN 109
- Local Analog Loopback (AL) 110
- Chapter 5 113
- Configuring HSSI Services 113
- Enabling or Disabling BofL 115
- Setting the BofL Interval 116
- Setting the MTU 117
- Setting the CRC Size 119
- Configuring WAN Line Services 122
- Chapter 6 123
- Editing T1 Services 124
- (Figure 6-1) 125
- Setting the T1 Frame Type 126
- Figure 6-2. Bipolar Format 127
- Specifying Line Buildout 128
- Assigning Channel Functions 129
- Editing E1 Services 130
- Enabling or Disabling CRC 132
- Setting the Clock Source 132
- Chapter 7 135
- Setting the Clock Parameters 139
- (continued) 141
- (continued) 142
- Setting the MCE1 Line Type 143
- Setting the MCE1 Line Coding 143
- Setting the Loop Clock 146
- Setting the External Clock 146
- Setting the MCT1 Line Type 152
- Carrier-to-Customer 156
- Setting Relay Control 159
- Configuring a DS0A Connection 164
- Setting Parameters 165
- Defining Logical Lines 169
- Circuit name: MCE1_31_1 171
- E1 CRC MF 187
- Testing MCE1 and MCT1 Lines 190
- Setting Port Test Parameters 191
- Table 7-19. ESF Line Types 194
- Running Port Tests 195
- Running Logical Line Tests 200
- Chapter 8 203
- Configuring FT1 Services 203
- Setting the FT1 Line Type 209
- Setting the FT1 Line Coding 210
- Setting the Signal Level 211
- Type of circuit 225
- Slot where connector 225
- Logical line 225
- Assigning Timeslots 235
- Chapter 9 245
- Configuring FE1 Services 245
- Setting the FE1 Line Type 250
- Setting the FE1 Line Coding 251
- Circuit name: 257
- Testing FE1 Lines 269
- About the Tests 270
- Chapter 10 277
- Types of Multiline Circuits 278
- Multiline Example 279
- Software Considerations 280
- (MCE1 Example) 289
- Logical Lines (MCE1 Example) 291
- Appendix A 295
- Site Manager Parameters 295
- Asynchronous Line Parameters 296
- DSU/CSU Parameters 302
- E1 Line Parameters 304
- HSSI Line Parameters 307
- LAPB Parameters 312
- MCE1 Port Parameters 319
- MCT1 Port Parameters 323
- FT1 Port Parameters 338
- FT1 Logical Line Parameters 344
- FE1 Line Parameters 350
- FE1 Clock Parameters 351
- FE1 Port Parameters 352
- FE1 Logical Line Parameters 357
- Synchronous Line Parameters 363
- T1 Line Parameters 382
- Appendix B 387
- BCC show Commands 387
- <circuit_name> 389
- <slot> 389
- Receive Errors 391
- Transmit Errors 391
- System Errors 393
- <number_of_seconds> 394
- Commands for HSSI Services 411
- E1 framers 431
- Commands for Serial Services 439
- Appendix C 451
- <slot_no.> 452
- Glossary 453
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