R2511-HP MSR Router Series Interface Command Reference(V5)

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The reset counters interface command clears the counters of all interfaces. To clear the controller counter
of individual CT1/PRI interfaces, use the reset counters controller t1 command.
Examples
# Clear the controller counter for CT1/PRI interface T1 2/0.
<Sysname> reset counters controller t1 2/0
sendloopcode
Use sendloopcode to send remote loopback control code.
Syntax
sendloopcode { fdl-ansi-llb-down | fdl-ansi-llb-up | fdl-ansi-plb-down | fdl-ansi-plb-up |
fdl-att-plb-down | fdl-att-plb-up | inband-llb-down | inband-llb-up }
Default
No remote loopback control code is sent.
Views
CT1/PRI interface view
Default command level
2: System level
Parameters
fdl-ansi-llb-down: Sends ANSI-compliant LLB deactivation request code in the FDL to remove loopback.
fdl-ansi-llb-up: Sends ANSI-compliant line loopback (LLB) activation request code in the FDL to start
remote loopback.
fdl-ansi-plb-down: Sends ANSI-compliant PLB deactivation request code in the FDL to remove loopback.
fdl-ansi-plb-up: Sends ANSI-compliant payload loopback (PLB) activation request code in the FDL to start
remote loopback.
fdl-att-plb-down: Sends AT&T-complaint PLB deactivation request code in the FDL to remove loopback.
fdl-att-plb-up: Sends AT&T-complaint PLB activation request code in the FDL to start remote loopback.
inband-llb-down: Sends in-band LLB deactivation request code in compliance with the ANSI or AT&T
implementation to remove loopback.
inband-llb-up: Sends in-band line loopback (LLB) activation request code compliant with the ANSI and
AT&T implementation to start remote loopback.
Usage guidelines
You can configure loopback on the remote CT1/PRI interface by sending loopback request code.
In LLB mode, all 193 bits (one synchronization bit and 192 effective bandwidth bits) in a T1 PCM frame
are looped back. In PLB mode, however, only 192 effective bandwidth bits are looped back.
The format of loopback code is compliant with ANSI T1.403 or AT&T TR 54016.
In SF framing, LLB code is sent using the effective bandwidth. In ESF framing, both LLB code and PLB code
are sent and received in the FDL.