Setting Parameters for a VDSL Interface (in PTM Mode)
Context
The Router used as the CPE and the peer device must use the same transmission standard, bit exchange status, seamless rate adaptation status, and trellis coding status so that they can communicate.
Procedure
- Run system-view
The system view is displayed.
- Run interface ethernet interface-number
The view of the VDSL interface working in PTM mode is displayed.
- Run vdsl standard vdsl2 { annexa | annexb }
A transmission standard is configured for a VDSL interface in PTM mode.
By default, a VDSL interface in PTM mode automatically uses the transmission standard of the peer interface.
This function is supported in V300R019C00 version.
- Run adsl bitswap { off | on }
Bit exchange is configured on the VDSL interface.
By default, bit exchange is enabled on a VDSL interface.
- Run adsl sra { off | on }
Seamless rate adaptation is configured on the VDSL interface.
By default, seamless rate adaptation is disabled on a VDSL interface.
- Run adsl trellis { off | on }
Trellis coding is configured on the VDSL interface.
By default, trellis coding is enabled on a VDSL interface.
- (Optional) Run undo vdsl bind
Two lines of the VDSL interface in PTM mode are unbound.
By default, two lines of a VDSL interface in PTM mode are bound.
When the device is deployed as a CPE, a VDSL interface in PTM mode has two lines (Line0 and Line1). By default, the two lines are bound to increase bandwidth. When the DSLAM requires the CPE to use one line for access, run the undo vdsl bind command to unbind the two lines of the VDSL interface in PTM mode.
Only the 2VDSL2 interface card support this command.
- (Optional) Enhance line performance of the VDSL interface.
Only the AR617VW, AR617VW-LTE4EA, AR617VW-LTE4, 1V35B-AM, and AR657W devices support this configuration.
Only V300R019C11 and later versions support the function.
- Run undo vdsl upstream-retrans enable
The upstream retransmission function is disabled on the VDSL interface.
By default, the upstream retransmission function is enabled on a VDSL interface.
- Run undo vdsl downstream-retrans enable
The downstream retransmission function is disabled on the VDSL interface.
By default, the upstream retransmission function is enabled on a VDSL interface.
- Run vdsl anti-noise enable
Enhanced noise resistance is enabled on the VDSL interface.
By default, enhanced noise resistance is disabled on a VDSL interface.
- Run undo vdsl upstream-retrans enable
