4000 Router Series Layer 2 - WAN Command Reference

Predefined user roles

network-admin

Parameters

max-bind-num: Specifies the maximum number of links allowed in an MP bundle, in the range of 1 to

128 .

Usage guidelines

Use the default setting in normal cases. Inappropriate use of this command can cause PPP performance

degradation. Make sure you understand the impact of this command on your network before you use it.

Configure the maximum number of links allowed in an MP bundle to be greater than the actual number

of bundled links. Otherwise, MP bundling fails.

For the configured maximum number to take effect on an MP bundle, you must re-enable all the physical

interfaces in the MP bundle by executing the shutdown command and then the undo shutdown

command.

Examples

# Set the maximum number of links allowed in an MP bundle to 12.

<Sysname> system-view

[Sysname] interface mp-group 1

[Sysname-MP-group1] ppp mp max-bind 12

ppp mp min-fragment

Use ppp mp min-fragment to set the minimum MP packet fragmentation size.

Use undo ppp mp min-fragment to restore the default.

Syntax

ppp mp min-fragment size

undo ppp mp min-fragment

Default

The minimum MP packet fragmentation size is 128 bytes.

Views

MP-group interface view

Predefined user roles

network-admin

Parameters

size: Specifies the minimum MP packet fragmentation size in the range of 128 to 1500 bytes. Outgoing

MP packets smaller than this value will not be fragmented, and those greater than or equal to this value

will be fragmented.

Usage guidelines

If MP bundling is implemented through hardware (CPOS chip, for example), the minimum MP packet

fragmentation size varies with chips (the minimum MP packet fragmentation size on certain chips can

only be 128, 256, or 512 bytes). In this case, make sure the setting configured with the ppp mp