clock map unk

Function

The clock map unk command maps a clock source with the SSM quality level of UNK to a new SSM quality level.

Format

clock map unk { prc | ssua | ssub | sec | dnu }

Parameters

Parameter	Description	Value
prc	Indicates G.811 clock signals with the SSM quality level of PRC.	-
ssua	Indicates G.812 transit node clock signals with the SSM quality level of SSUA.	-
ssub	Indicates G.812 local node clock signals with the SSM quality level of SSUB.	-
sec	Indicates SDH clock source signals with the SSM quality level of SEC.	-
dnu	Indicates that the clock with the SSM quality level of DNU cannot function as a clock source.	-

Views

System view

Default Level

2: Configuration level

Usage Guidelines

If the SSM quality level of an upstream clock source is UNK, to allow switches to trace this clock source, run the clock map unk command to map the upstream clock source to a new SSM quality level. By default, a clock source with the SSM quality level of UNK is mapped to the SSM quality level of DNU. In this case, if SSM control is enabled also, the clock source does not participate in clock source selection.

By default, when SSM control is enabled, the clock source with the SSM quality level of UNK does not participate in clock source selection.

Example

# Map the clock source with the SSM quality level of UNK to the SSM quality level of PRC.

<HUAWEI> system-view
[HUAWEI] clock map unk prc