H3C Technologies H3C SR8800 - Manual (Page 39)

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Configuring an MP through an MP-group
To configure an MP through an MP-group:
Step Command Remarks
1. Enter system view. system-view N/A
2. Create an MP-group. interface mp-group mp-number N/A
3. Set the interface description. description text
Optional.
By default, the description of a
MP-group interface is interface
name Interface.
4. Set the maximum number of
links allowed in an MP
bundle.
ppp mp max-bind max-bind-num
Optional.
16 by default. However, up to 12
links can be brought up
simultaneously in an MP bundle.
5. Set the MTU size of the
MP-group interface.
mtu size Optional.
6. Restore the default settings. default Optional.
7. Bring up the interface. undo shutdown
Optional.
By default, the interface is up.
8. Enable MP fragmentation. ppp mp fragment enable
Optional.
Enabled by default.
9. Set the minimum MP packet
size for fragmentation.
ppp mp min-fragment size
Optional.
512 bytes by default.
10. Return to system view. quit N/A
11. Enter interface view.
interface interface-type
interface-number
N/A
12. Add the interface to the
MP-group.
ppp mp mp-group mp-number N/A
CAUTION:
•
The ppp mp max-bind command and the ppp mp min-fragment command you configured can take
effect on an MP bundle only after you re-enable all the physical interfaces in the MP bundle by using the
shutdown and undo shutdown commands.
• When you set the minimum MP packet size for fragmentation to 1500 bytes on an MP-group interface
of a PIC-ET8G8L, PIC-CLP1G8L, or PIC-CLP2G8L sub-card, do not enable packet fragmentation on the
remote interface. Otherwise, service interruption will occur.
• After you configure the undo ppp mp fragment enable command on an interface, the settings
configured with the ppp mp min-fragment command become invalid on the interface.
Configuring short sequence number header format negotiation
By default, an MP bundle receives and transmits fragments with long sequence numbers.