R0106-HP MSR Router Series Interface Command Reference(V7)
168
Views
CT3 interface view
Predefined user roles
network-admin
Parameters
data: Sets MDL message parameters. If you do not specify a parameter, a default string of line is set in
the MDL messages.
• eic string: Specifies the equipment identification code, a string of 1 to 10 characters. This parameter
is contained in all three types of MDL messages.
• fic string: Specifies the frame identification code, a string of 1 to 10 characters. This parameter is
contained in all three types of MDL messages.
• gen-no string: Specifies the generator number, a string of 1 to 38 characters. This parameter is
specific to test signal messages.
• lic string: Specifies the location identification code, a string of 1 to 11 characters. This parameter is
contained in all three types of MDL messages.
• pfi string: Specifies the path facility identification, a string of 1 to 38 characters. This parameter is
specific to path messages.
• port-no string: Specifies the port number in idle signal message, a string of 1 to 38 characters. This
parameter is specific to idle signal messages.
• unit string: Specifies the unit, a string of 1 to 6 characters. This parameter is contained in all three
types of MDL messages.
detect: Enables periodical MDL message detection.
generate: Sends a specific type of MDL message.
• idle-signal: Specifies MDL idle signal messages.
• path: Specifies MDL path messages.
• test-signal: Specifies MDL test signal messages.
Usage guidelines
MDL is a channel formed by using the three C-bits in the fifth subframe in C-bit framing. According to
ANSI T1.107a, MDL can transmit path, idle signal, and test signal messages. The data framing format is
LAPD for MDL messages.
To send idle signal, path, and test signal messages simultaneously, repeat the mdl command to specify
the idle-signal, path, and test-signal keywords.
Examples
# Enable MDL detection on T3 2/4/0.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] mdl detect
# Set LIC to hello for CT3 interface T3 2/4/0.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] mdl data lic hello
# Send path messages on CT3 interface T3 2/4/0.










