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Chapter 1 Introduction IPmux-1/1E Installation and Operation Manual
1-22 Functional Description
➤
To calculate Ethernet throughput and intrinsic PDV as a function of
TDM bytes/frame:
Ethernet load (bps) =
[(frame overhead (bytes) + TDM bytes/frame) x 8] x frames/second
Frame overhead = Ethernet overhead + IP overhead = 46 bytes
The frame overhead does not include:
Preamble field: 7 bytes
SFD field: 1 byte
VLAN field (when used): 4 bytes.
Frame/second =
Unframed: 5447/n for a full E1
4107/n for a full T1
Framed: 8000 x k/(46.875 x n)
Where k = number of assigned timeslots
Where n =
48
eb
y
tes/framTDM
Round Trip Delay
The voice path round-trip delay, which is a function of all connections and
network parameters, is calculated for E1/T1 as follows:
(±2 µs) RTDelay
(
µ
s)
= 2 x (
NTS
n48×
x 125 (µs) + PDVT buffer (µs) +1000 µs)+ Network Round Trip Delay
where n =
48
y
tes/frameTDMb
where NTS = number of timeslots assigned
in unframed E1 interface = 32
T1 interface = 24
End-to-End Alarm Generation
An end-to-end alarm generation mechanism exists in IPmux-1 to facilitate the
following alarms:
Unframed AIS is transmitted toward the near-end PBX in event of:
• Far-end LOS, AIS
• PDVT underflow/overflow.
Framed Timeslot/CAS configurable alarm pattern is transmitted toward the
near-end PBX in event of:
• Far-end LOS, LOF, AIS
• PDVT underflow/overflow.
Note
Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
www.bestdatasource.com
- IPmux-1, IPmux-1E 1
- Warranty 2
- Regulatory Information 2
- Safety Warnings 3
- Telecommunication Safety 3
- Declaration of Conformity 4
- Contents 5
- Table of Contents 6
- List of Figures 7
- List of Tables 8
- Chapter 1 9
- Introduction 9
- Applications 10
- Overview 1-3 11
- 1-4 Overview 12
- Overview 1-5 13
- Features 14
- ISDN BRI 15
- Ethernet User Port 15
- Ethernet Physical Port 15
- Mode of Operation 16
- Standards 17
- 1.2 Physical Description 18
- 1.3 Functional Description 19
- Operation Modes 20
- IPmux-1E ISDN BRI 21
- IPmux-1E FXS 21
- First Channel Second Channel 22
- Timing Modes 23
- Network Timing Schemes 24
- Frame Format 25
- VLAN Support 26
- Packet Delay Variation 27
- PDVT (Jitter) Buffer 28
- Ethernet Throughput 28
- Round Trip Delay 30
- 1.4 Technical Specifications 32
- Warning 37
- 2.3 Package Contents 38
- 2.4 Equipment Needed 38
- 2.5 Installation and Setup 38
- IPmux-1E 39
- 2-4 Installation and Setup 40
- Grounding 42
- Location of Connectors 42
- Connecting the Control Port 44
- Connecting the Power 45
- 2-10 Installation and Setup 46
- Chapter 3 47
- Operation 47
- 100-240 VAC 49
- 1 A T 250V 49
- 3.2 Operating Instructions 50
- Turning IPmux-1/1E Off 51
- 3.3 Getting Started 52
- Main Menu 53
- System Menu 56
- ↓ 57
- 2. Configuration 57
- Performance Monitoring 59
- Chapter 4 61
- Troubleshooting and 61
- Diagnostics 61
- Table 4-1. Event Types 62
- 4.2 Troubleshooting 63
- 4.3 Diagnostic Tests 63
- Internal Loop 64
- External Loop 64
- Remote Loopback 65
- Tone Injection 65
- 4-6 Diagnostic Tests 66
- Application Configuration 67
- Procedures 67
- Chapter 5 67
- Guidelines 68
- Configuration Summary Table 69
- 5.2 IPmux-1 70
- Host IP Address 71
- E1/T1 Configuration 72
- DS0 Bundle Configuration 72
- 5.3 IPmux-4 76
- Configuration 77
- Alarms Trap Mask 82
- Appendix A 85
- Boot Sequence for 85
- Downloading Software 85
- Accessing the File System 86
- Booting IPmux-1/1E A-3 87
- A-4 Booting IPmux-1/1E 88
- Appendix B 89
- Telnet Operation 90
- System Security 90
- Appendix C 91
- SNMP Management 91
- MIB Structure 92
- SNMP Communities 93
- Authentication 94
- Network Management Stations 94
- Appendix D 95
- TFTP Download Procedures 95
- Preliminary Procedure 96
- Checking the Download 97
- Appendix E 99
- Parameters and Screens 99
- E.1 Main Menu 100
- General Information 101
- Self-Test Results 102
- Logfile Events 103
- E.3 General Configuration 104
- Default Gateway 105
- Authentication/Community 105
- Manager List 106
- Alarm Traps Mask 107
- ASCII Terminal Configuration 108
- Time/Date Update 109
- Download/Upload Using Xmodem 109
- Order from: Cutter Networks 110
- Set Default Parameters 111
- E1 Configuration 112
- T1 Configuration 115
- ISDN Channel Configuration 119
- E.6 Analog Configuration 120
- Channel Configuration 121
- First define the bundle 124
- E.10 Performance Monitoring 127
- ISDN Statistics in IPmux-1 130
- Figure E-31. Analog Status 131
- To reset counters: 132
- Type R 132
- Table E-23. LAN Statistics 132
- Bundle Connection Statistics 133
- Aging Time 135
- LAN Configuration 135
- LAN Statistics 136
- Figure 1 143
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