Chapter 18 xDSL Line Data
IES-1248-71/73 User’s Guide
152
18.2 xDSL Performance Screen
These counters display line performance data that has been accumulated since the system
started. The definitions of near end/far end are always relative to the ATU-C (ADSL
Termination Unit-Central Office). ATU-C refers to downstream traffic from the IES-1248.
ATU-R (ADSL Termination Unit-Remote) refers to upstream traffic from the subscriber.
Rate
The rate fields display the transmission rates. “Line Down” indicates that the
ADSL port is not connected to a subscriber.
Down/up Stream
Rate
These are the rates (in Kbps) at which the port has been sending and receiving
data.
Down/up Stream
Noise Margin
These are the DSL line’s downstream and upstream noise margins. Measured
in decibels (dB).
Down/up Stream
Attenuation
These are the reductions in amplitude of the downstream and upstream DSL
signals. Measured in decibels (dB).
Down/up Stream
Attainable Rate
These are the highest theoretically possible transfer rates (in Kbps) at which the
port could send and receive data.
Info
Service Mode
This field displays the ADSL standard that the port is using. The IES-1248-71/
71A uses G.dmt, G.lite, ANSI T1.413 issue 2, ADSL2, or ADSL2+. The IES-
1248-73 uses G.dmt Annex B, ETSI, ADSL2, or ADSL2+.
Trellis Encoding
This field displays whether Trellis encoding is turned on or off. Trellis encoding
helps to reduce the noise in ADSL transmissions. Trellis may reduce throughput
but it makes the connection more stable.
A
Down Stream
Interleave Delay
This field displays the number of milliseconds of interleave delay for
downstream transmissions.
Up Stream
Interleave Delay
This field displays the number of milliseconds of interleave delay for upstream
transmissions.
Down Stream
Output Power
This field displays the amount of power that this port is using to transmit to the
subscriber’s ADSL modem or router. The total output power of the transceiver
varies with the length and line quality. The farther away the subscriber’s ADSL
modem or router is or the more interference there is on the line, the more power
is needed.
Up Stream
Output Power
This field displays the amount of power that the subscriber’s ADSL modem or
router is using to transmit to this port. The total output power of the transceiver
varies with the length and line quality. The farther away the subscriber’s ADSL
modem or router is or the more interference there is on the line, the more power
is needed.
Info Atur
Info Atuc
The
Info Atur
fields show data acquired from the ATUR (ADSL Termination
Unit – Remote), in this case the subscriber’s ADSL modem or router, during
negotiation/provisioning message interchanges. This information can help in
identifying the subscriber’s ADSL modem or router.
The
Info Atuc
fields show data acquired from the ATUC (ADSL Termination
Unit – Central), in this case IES-1248, during negotiation/provisioning message
interchanges.
The vendor ID, vendor version number and product serial number are obtained
from vendor ID fields (see ITU-T G.994.1) or R-MSGS1 (see T1.413).
A.
At the time of writing, the IES-1248 always uses Trellis coding.
Table 29
xDSL Line Rate Info (continued)
LABEL
DESCRIPTION
Summary of Contents for IES-1248-71
Page 2: ......
Page 8: ...Safety Warnings IES 1248 71 73 User s Guide 8 ...
Page 38: ...List of Tables IES 1248 71 73 User s Guide 38 ...
Page 40: ...40 ...
Page 52: ...Chapter 2 Hardware Installation IES 1248 71 73 User s Guide 52 ...
Page 60: ...Chapter 3 Front Panel Connections IES 1248 71 73 User s Guide 60 ...
Page 68: ...Chapter 4 MDF Connections IES 1248 71 73 User s Guide 68 ...
Page 74: ...74 ...
Page 81: ...Chapter 7 Introducing the Web Configurator IES 1248 71 73 User s Guide 81 Figure 30 Logout ...
Page 82: ...Chapter 7 Introducing the Web Configurator IES 1248 71 73 User s Guide 82 ...
Page 110: ...Chapter 12 User Account IES 1248 71 73 User s Guide 110 ...
Page 116: ...Chapter 13 Switch Setup IES 1248 71 73 User s Guide 116 ...
Page 118: ...Chapter 14 IP Setup IES 1248 71 73 User s Guide 118 ...
Page 150: ...Chapter 17 xDSL Profiles Setup IES 1248 71 73 User s Guide 150 ...
Page 158: ...158 ...
Page 166: ...Chapter 19 VLAN IES 1248 71 73 User s Guide 166 ...
Page 184: ...Chapter 22 Multicast VLAN IES 1248 71 73 User s Guide 184 ...
Page 216: ...Chapter 30 2684 Routed Mode IES 1248 71 73 User s Guide 216 ...
Page 222: ...Chapter 31 PPPoA to PPPoE IES 1248 71 73 User s Guide 222 ...
Page 226: ...Chapter 32 DSCP IES 1248 71 73 User s Guide 226 ...
Page 240: ...Chapter 36 Syslog IES 1248 71 73 User s Guide 240 ...
Page 248: ...Chapter 37 Access Control IES 1248 71 73 User s Guide 248 ...
Page 250: ...250 ...
Page 259: ...Chapter 39 Alarm IES 1248 71 73 User s Guide 259 ...
Page 260: ...Chapter 39 Alarm IES 1248 71 73 User s Guide 260 ...
Page 276: ...276 ...
Page 296: ...Chapter 44 Commands IES 1248 71 73 User s Guide 296 ...
Page 304: ...Chapter 45 Command Examples IES 1248 71 73 User s Guide 304 ...
Page 320: ...Chapter 47 DHCP Commands IES 1248 71 73 User s Guide 320 ...
Page 328: ...Chapter 48 IEEE 802 1Q Tagged VLAN Commands IES 1248 71 73 User s Guide 328 ...
Page 334: ...Chapter 49 MAC Commands IES 1248 71 73 User s Guide 334 ...
Page 348: ...Chapter 50 IGMP Commands IES 1248 71 73 User s Guide 348 ...
Page 352: ...Chapter 51 Packet Filter Commands IES 1248 71 73 User s Guide 352 ...
Page 362: ...Chapter 53 Firmware and Configuration File Maintenance IES 1248 71 73 User s Guide 362 ...
Page 394: ...Chapter 55 ADSL Commands IES 1248 71 73 User s Guide 394 ...
Page 418: ...Chapter 56 Virtual Channel Management IES 1248 71 73 User s Guide 418 ...
Page 424: ...Chapter 57 ACL Commands IES 1248 71 73 User s Guide 424 ...
Page 436: ...Chapter 58 Troubleshooting IES 1248 71 73 User s Guide 436 ...
Page 437: ...437 PART VI Appendices and Index Product Specifications 439 Legal Information 449 Index 457 ...
Page 438: ...438 ...
Page 448: ...Appendix B Removing and Installing a Fuse IES 1248 71 73 User s Guide 448 ...
Page 452: ...Appendix C Legal Information IES 1248 71 73 User s Guide 452 ...