3Com 10014299 manual Configure virtual Baud rate on interface, Frags

174CHAPTER 12: CONFIGURING PPP AND MP

By default, the maximum link number of links that MP channel permits to bind is 16.

bConfigure the maximum number of fragments received by MP channel

Table 209 Configure the maximum number of fragments received by MP channel

Operation	Command
Set the number of maximum fragments MP channel	ppp mp max-receive-frags
permits to receive	frags
Restore default value of the number of maximum	undo ppp mp
fragments MP channel permits to receive	max-receive-frags

By default, the maximum number of fragments that MP channel permits to receive is 4.

cConfigure 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

Operation	Command
Set the number of maximum fragments MP channel	ppp mp max-send-frags frags
permits to send
Restore default value of the number of maximum	undo ppp	mp max-send-frags
fragments MP channel permits to send

By default, the maximum number of fragments that MP channel permits to send is 1.

dConfigure 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 virtual Baud rate on interface	virtualbaudrate baudrate