
Configuring Dial Services
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117353-B Rev. 00
Customizing Conformance Testing
The bchannel-loopback parameter is for Layer 1 ISDN BRI conformance testing.
It allows the external equipment to send data to the router over the B channels and
loop it right back out the S/T or U interface (ARN only). The external equipment
can verify its physical connection to the router.
To enable a test, enter:
bchannel-loopback
enabled
The default is disabled.
For example:
bri/1/12# bchannel-loopback enabled
Do not enable this parameter when the router is in normal operational mode.
Modifying the BRI Line Configuration
You can specify whether you have a point-to-point (PTP) or multipoint (MTP)
configuration on the BRI line.
To specify the line configuration enter:
line-type
<
type
>
type can be PTP or MTP.
For example:
bri/1/1# line-type ptp
Enter the value of the type of line supplied by your ISDN provider. If you have a
PTP line connected to a 5ESS switch, you do not have to configure SPIDs.
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