National-Bit - HP 6600 Command Reference Manual

Use undo loopback to restore the default.
Syntax
loopback { local | payload | remote }
undo loopback
Default
Loopback is disabled on the CE3 interface.
Views
CE3 interface view
Default command level
2: System level
Parameters
local: Enables internal loopback on the CE3 interface.
payload: Enables external payload loopback on the CE3 interface.
remote: Enables external loopback on the CE3 interface.
Usage guidelines
Loopback is intended for test use. Disable loopback in other cases.
If a CE3 interface encapsulated with PPP is placed in a loopback, it is normal that the state of the link
layer protocol is reported as down.
Examples
# Enable internal loopback on interface E3 2/0/0.
<Sysname> system-view
[Sysname] controller e3 2/0/0
[Sysname-E3 2/0/0] loopback local

national-bit

Use national-bit to configure the national bit on the CE3 interface.
Use undo national-bit to restore the default.
Syntax
national-bit { 0 | 1 }
undo national-bit
Default
The national bit on the CE3 interface is 1.
Views
CE3 interface view
Default command level
2: System level
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