Grant-Filtering Enable; Group Member - H3C S7500E Series Command Reference Manual

You can only delete a fiber backup group without any member ports.
Examples
# Create fiber backup group 1 and enter fiber backup group view.
<Sysname> system-view
[Sysname] ftth
[Sysname-ftth] fiber-backup group 1
Create group 1 successfully.
[Sysname-fiber-group1]

grant-filtering enable

Syntax
grant-filtering enable
undo grant-filtering enable
View
OLT port view
Default Level
2: System level
Parameters
None
Description
Use the grant-filtering enable command to enable the grant filtering function on the OLT port.
Use the undo grant-filtering enable command to disable the grant filtering function on the OLT port.
By default, this function is enabled.
Examples
# Enable grant filtering on OLT 3/0/1.
<Sysname> system-view
[Sysname] interface olt 3/0/1
[Sysname-Olt3/0/1] grant-filtering enable

group member

Syntax
group member interface-type interface-number
undo group member interface-type interface-number
View
Fiber backup group view
Default Level
2: System level
2-22