Configuring Ppp Callback - 3Com MSR 50 Series Configuration Manual

170 C 6: DCC C
HAPTER ONFIGURATION
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Configuring PPP
Callback
In the RS-DCC approach, configure in dialer interface view at the calling end
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and in physical dial interface view at the called end. At the calling end,
however, you are recommended to configure the same PPP parameters on
physical dial interfaces as well to ensure reliable PPP link negotiation.
When the three commands, ppp mp min-bind, dialer threshold, and ppp mp
max-bind, are configured, DCC brings up links as follows:
5 Bring up a minimum number of links depending on the setting of the ppp mp
min-bind command.
6 If traffic size still exceeds the link load threshold set by the dialer threshold
command, bring up the next idle link. This process continues until the number of
links reaches the upper limit set by the ppp mp max-bind command or traffic size
decreases below the specified link load threshold.
Configuration procedure
Follow these steps to configure MP for DCC:
To do...
Enter system view
Enter dialer interface view
Enable MP
Set link load thresholds
Set upper limit of links in an
MP bundle
Set lower limit of links in an
MP bundle
Configure PPP commands on both dialer and physical interfaces to ensure
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reliable PPP link negotiation.
The dialer threshold 0 command voids the dialer timer idle command. DCC
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will bring up all available links when triggered.
Similar to the dialer threshold 0 command, the ppp mp min-bind command
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voids the dialer timer idle command. When it is configured, DCC does not
look at traffic size to bring up links for MP bundling or tear down links that
have been brought up.
You need to configure the dialer threshold command only at the calling end.
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PPP callback adopts the client/server model where the calling party is the callback
client and the called party is the callback server. The client first originates a call,
and the server decides whether to originate a return call. If a return call is needed,
the callback server disconnects and then originates a return call according to the
information such as username or callback number.
Use the command...
system-view
interface dialer number
ppp mp
dialer threshold
traffic-percentage [ in-out | in
| out ]
ppp mp max-bind
max-bind-num
ppp mp min-bind
min-bind-num
Remarks
--
--
Required
Disabled by default.
Required
If the traffic-percentage
argument is set to 0, DCC will
bring up all available links
when triggered.
Optional
The default is 16.
Optional
The default is 0; DCC brings
up links depending on traffic
size.