R2511-HP MSR Router Series Interface Configuration Guide(V5)

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distance means the contrary. When setting up a link, G. SHDSL can automatically tune the speed taking
into consideration the actual line conditions such as distance and noise.
For a typical network topology for routers with G.SHDSL interfaces, see Figure 8. U
nlike ADSL, G.SHDSL
does not use the splitter.
This section covers only the physical configurations of the G.SHDSL interface. For information about
configuring ATM (including PVCs), see Layer 2—WAN Configuration Guide.
Configuration procedure
IMPORTANT:
Shut down the idle G.SHDSL interfaces to prevent their lines from consuming system resources.
To configure a G.SHDSL interface:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter ATM interface view.
interface atm interface-number N/A
3. Activate the G.SHDSL
interface.
activate
Optional.
The G.SHDSL interface is active by
default.
4. Specify the G.SHDSL
interface standard.
shdsl annex { a | b }
Optional.
The default setting is annex B.
5. Set the wiring mode.
shdsl wire { 2 | 4-auto-enhanced |
4-enhanced | 4-standard | 6 | 8 |
auto }
Optional.
The default setting is:
• 4-enhanced mode for the
four-wire G.SHDSL interface.
• 4-standard for the four-wire
G.SHDSL.bis interface.
• 8 for the eight-wire
G.SHDSL.bis interface.
This command is available only if
the interface supports four-wire
and eight-wire G.SHDSL.
6. Set the interface operating
mode.
shdsl mode { co | cpe }
Optional.
The default setting is CPE.
7. Set the single-pair rate.
shdsl rate { auto | rate }
Optional.
The default is auto-negotiation
mode for the two-wire G.SHDSL
interface, 2.312 Mbps for the
four-wire G.SHDSL interface
(four-wire G.SHDSL interface rate
is 4.624 Mbps), and
auto-negotiation for two-wire and
four-wire G.SHDSL.bis interfaces.