Cisco Cisco IOS Software Release 12.4(22)XR Referencia técnica
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Command Reference for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR11
OL-19027-02
cdma pdsn a11 dormant sdb-indication match-qos-group
cdma pdsn a11 dormant sdb-indication match-qos-group
To configure the PDSN to use SDBs to deliver PPP control packets for Always-On sessions, where the
session is dormant, use the cdma pdsn a11 dormant sdb-indication match-qos-group command in
global configuration mode. Use the no form of the command to disable this feature.
session is dormant, use the cdma pdsn a11 dormant sdb-indication match-qos-group command in
global configuration mode. Use the no form of the command to disable this feature.
cdma pdsn a11 dormant sdb-indication match-qos-group group-number ppp-ctrl-pkts
no cdma pdsn a11 dormant sdb-indication match-qos-group group-number ppp-ctrl-pkts
Syntax Description
Defaults
No default values.
Command Modes
Global configuration
Command History
Usage Guidelines
While data packets can be sent towards the mobile using SDBs, SDBs can also be used to deliver PPP
control packets. This method can be particularly helpful for Always-On sessions, where the session is
dormant. Basically, with Always On configured, the PDSN sends out LCP echo requests (and waits for
LCP echo replies) to keep the session alive. As a result, when such a session goes dormant, a data
channel needs to be setup to deliver these LCP echo requests to the MN. The other option is to use SDBs
to deliver the LCP echo requests without setting up a data channel.
control packets. This method can be particularly helpful for Always-On sessions, where the session is
dormant. Basically, with Always On configured, the PDSN sends out LCP echo requests (and waits for
LCP echo replies) to keep the session alive. As a result, when such a session goes dormant, a data
channel needs to be setup to deliver these LCP echo requests to the MN. The other option is to use SDBs
to deliver the LCP echo requests without setting up a data channel.
Examples
The following example shows how to enable the cdma pdsn a11 dormant sdb-indication
match-qos-group command:
match-qos-group command:
Router(config)# cdma pdsn a11 dormant sdb-indication match-qos-group 14 ppp-ctrl-pkts
Command
Description
group-number
Specifies the classified match criteria.
Release
Modification
12.3(11)YF2
This command was introduced.