User Manual - Configuration Guide (Volume 3)

Chapter 1

 

Versatile Routing Platform

DDR Configuration

 

Table DC-1-32Use Legacy DDR to configure ISDN dedicated line

 

 

 

 

 

 

Operation

Command

 

 

 

 

 

 

Configure dial string, according to which DDR

dialer-list dialer-groupprotocol protocol-name{permit

 

 

determines datagram (used in the configuration

 

 

deny list access-list-number}

 

 

mode of the dial interface)

 

 

 

 

 

Enter the configuration mode of the designated ISDN

interface interface-type interface-number

 

 

interface (used in global configuration mode)

 

 

 

 

 

Set the ISDN interface to belong to a dialer group

dialer-group number

 

 

(used in the configuration mode of ISDN interface)

 

 

 

 

 

Set B channel used to connect dedicated lines (used

dialer isdn-leased channel-number

 

 

in the configuration mode of ISDN interface)

 

 

 

 

 

Configure dialer map (used in the configuration mode

dialer map protocol next-hop-address dial-string

 

 

of the dial interface)

 

 

 

 

II. Configure autodial

Autodial means that when the router has been started, DDR will automatically try to establish dial connection with the remote end, making it unnecessary to trigger datagram. If dial connection fails, DDR will automatically try to establish dial connection at regular intervals. Once the dial connection is established, it won’t disconnect itself due to timeout (i.e. dialer idle-timeout is not functional).

Table DC-1-33Configure autodial

Operation

Command

 

 

Enter the configuration mode of the designated dial

interface interface-type interface-number

interface (used in global configuration mode)

 

Configure dialer map for autodial (used in the

dialer map protocol next-hop-address name hostname

configuration mode of the dial interface)

dialerstring [: isdnsubaddress] autodial

Set autodial interval (used in the configuration mode

dialer autodial-interval seconds

of the dial interface)

 

Autodial interval is 300 seconds by default.

III. Configure cyclic use of dialer map

In dialer map configuration, the same destination network layer address can be configured with multiple dialer maps, using different dial strings, thus forming dial string backup between them. When DDR is establishing dial connection with the remote end, if the dial string currently used can’t connect the remote end, then, in the next call, the next dialer map and the dial string configured by it will be selected automatically. The configurations are as follows:

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Huawei v200r001 user manual II. Configure autodial, III. Configure cyclic use of dialer map