Interface Configuration
7750 SR OS Interface Configuration Guide
Page 287
Parameters
line —
Places the associated port or channel into a line loopback mode. A line loopback loops
frames received on the corresponding port or channels back to the remote router.
internal —
Places the associated port or channel into a internal loopback mode. A internal loopback
loops the frames from the local router back at the framer.
fdl-ansi —
Requests FDL line loopback according to ANSI T1.403.
fdl-bellcore —
Requests FDL line loopback according to Bellcore TR-TSY-000312.
payload-ansi —
Requests payload loopback using ANSI signaling.
inband-ansi —
Requests inband line loopback according to ANSI T1.403.
inband-bellcore —
Requests inband line loopback according to Bellcore signaling.
loopback
Syntax
loopback
{
line
|
internal
|
remote
}
no loopback
Context
config>port>tdm>e3
config>port>tdm>ds3
Description
This command puts the specified port or channel into a loopback mode.
The corresponding port or channel must be in a shutdown state in order for the loopback mode to be
enabled. The upper level port or channel or parallel channels should not be affected by the loopback
mode.
NOTE
: This command is not saved in the router configuration between boots.
The
no
form of this command disables the specified type of loopback.
Default
no loopback
Parameters
line —
Places the associated port or channel into a line loopback mode. A line loopback loops
frames received on the corresponding port or channels back to the remote router.
internal —
Places the associated port or channel into a internal loopback mode. A internal loopback
loops the frames from the local router back at the framer.
remote —
Sends a signal to the remote device to provide a line loopback.
mdl
Syntax
mdl
{
eic
|
lic
|
fic
|
unit
|
pfi
|
port
|
gen
}
mdl-string
no mdl
Context
config>port>tdm>ds3
Description
This command configures the maintenance data link (MDL) message for a DS-3/E-3.
Summary of Contents for 7750 SR OS
Page 6: ...Page 6 7750 SR OS Interface Configuration Guide Table of Contents ...
Page 8: ...Page 8 7750 SR OS Interface Configuration Guide List of Tables ...
Page 10: ...Page 10 7750 SR OS Interface Configuration Guide List of Figures ...
Page 14: ...Preface Page 14 7750 SR OS Interface Configuration Guide ...
Page 16: ...Getting Started Page 16 7750 SR OS Interface Configuration Guide ...
Page 184: ...Card MDA and Port Command Reference Page 184 7750 SR OS Interface Configuration Guide ...
Page 438: ...Debug Commands Page 438 7750 SR OS Interface Configuration Guide ...
Page 444: ...Index Page 444 7750 SR OS Interface Configuration ...