HP MSR2000/3000/4000 Router Series Layer 2 - WAN Configuration Guide

104
Ste
p
Command Remarks
7. (Optional.) Set the upper limit
of links in an MP bundle.
ppp mp max-bind max-bind-num The default setting is 16.
8. (Optional.) Set the lower limit
of links in an MP bundle.
ppp mp min-bind min-bind-num
By default, the lower limit is 0, and
DDR brings up links depending on
traffic size.
When this command is configured,
DDR does not look at traffic size to
bring up links for MP bundling.
However, links that are already up
will be brought down due to
timeout.
Configuring ISDN caller identification callback
In an ISDN environment, implementing DDR callback through the ISDN caller identification function does
not require authentication configuration.
ISDN caller identification callback features
ISDN caller identification callback delivers the following features:
1. In the ISDN caller identification callback applications, the callback server can process an
incoming call in one of the following ways, depending on the result of matching the dial-in number
against numbers configured in dialer call-in commands at the local end:
{ Deny the incoming call—If one or multiple dialer call-in commands exist, but no match is found.
{ Accept the incoming call—If the dial-in number matches a dialer call-in command without the
callback keyword or if no dialer call-in command exists.
{ Call back—If the dial-in number matches a dialer call-in command with the callback keyword.
2. Dial-in numbers are matched against numbers configured in dialer call-in commands starting with
the rightmost character. In addition, asterisks (*) are used as wildcards to match any character. If
a dial-in number matches multiple dialer call-in commands, the best match is selected in the
following order:
{ The one with the fewest asterisks (*).
{ The one that is found first.
3. At the server end, identify the dialer call-in commands matching incoming calls.
{ In C-DDR, upon receipt of an incoming call, the server compares the incoming number against
the dialer call-in commands configured on the physical interface or its corresponding dialer
interface for a match.
{ In B-DDR, upon receipt of an incoming call, the server compares the incoming number against
the dialer call-in commands configured on the involved dialer interface for a match.
Configuring ISDN caller identification callback with C-DDR
You can configure the router as the client or server of ISDN caller identification callback with C-DDR.