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174 CHAPTER 12: CONFIGURING PPP AND MP
By default, the maximum link number of links that MP channel permits to bind
is 16.
b Configure the maximum number of fragments received by MP channel
Table 209 Configure the maximum number of fragments received by MP channel
By default, the maximum number of fragments that MP channel permits to
receive is 4.
c Configure the maximum number of fragments that MP channel permits to
send
Table 210 Configure the maximum number of fragments that MP channel permits to
send
By default, the maximum number of fragments that MP channel permits to
send is 1.
d Configure virtual Baud rate of the interface
In MP channels, system controls load balancing in different links according to
Baud rate of interfaces. The higher the interface Baud rate, the larger the data
flow it can carry.
For synchronous serial interfaces operating in DTE mode, Baud rate is calculated in
line with 64000 bps without exception.
Generally, the actual sending capability is basically identical to its interface
Baud rate. However, in some special cases, the difference between them is
large. For example, when asynchronous serial interfaces of two routers are
connected via Modems, the actual transmission speed is decided by the line
quality, after the Modem negotiations. In this case, the speed is usually slower
than the preset interface Baud rate. Moreover, for synchronous serial interfaces
running under DTE mode, system cannot obtain their correct Baud rate.
In the above cases, you should set the virtual Baud rate on interfaces. When
virtual Baud rate (must not be 0) is set on an interface, system will substitute
virtual Baud rate for interface Baud rate to control flows. Proper application of
virtual Baud rate can make full use of the total link bandwidth and reduce
network delay time, while the irrational configuration runs the opposite.
Perform the following configuration in interface view.
Table 211 Configure virtual Baud rate on interface
Operation Command
Set the number of maximum fragments MP channel
permits to receive
ppp mp max-receive-frags
frags
Restore default value of the number of maximum
fragments MP channel permits to receive
undo ppp mp
max-receive-frags
Operation Command
Set the number of maximum fragments MP channel
permits to send
ppp mp max-send-frags frags
Restore default value of the number of maximum
fragments MP channel permits to send
undo ppp mp max-send-frags
Operation Command
Set virtual Baud rate on interface virtualbaudrate baudrate