CSCF Policy Rules
Configuration Mode Commands
The CSCF Policy Rules
Configuration Mode is used to manage CSCF AoR and service policy
profiles within the system.
IMPORTANT:
The commands or keywords/variables
that are available are dependent on platform type, product version,
and installed license(s).
allow-noauth
Configures the policy
to allow unauthenticated access. Default is disabled.
Syntax
[ default | no ] allow-noauth
default | no
Disables the allow-noauth
functionality for this policy.
Usage:
Use this command to
allow access to subscribers without authenticating them.
allow-unsecure
Configures the policy
to allow access to the system without a security association. Default
is disabled.
Syntax
[ default | no ] allow-unsecure
default | no
Disables the allow-unsecure
functionality for this policy.
Usage:
Use this command to
enable the policy to provide subscriber access to system without
a security association.
authorization
Configures the policy
to allow early bandwidth authorization. Default is disabled.
Syntax
[ default | no ] authorization early-bandwidth
early-bandwidth
Enables early bandwidth
policy.
default | no
Disables the early bandwidth authorization functionality
for this policy.
Usage:
Use this command to
enable the policy to provide early bandwidth authorization.
end
Exits the current mode
and returns to the Exec Mode.
Usage:
Change the mode back
to the Exec mode.
enforce-codec-policy
Enters the Enforce Codec
Policy Command Mode where allowed static and dynamic codec lists
are managed.
Syntax
[ default | no ] enforce-codec-policy
default | no
Disables the codec policy.
Usage:
Use this command to
enter the Enforce Codec Policy Configuration Mode.
Entering this command
results in the following prompt:
[context_name]hostname(config-policy-enforce-codec)#
CSCF Enforce Codec Policy
Mode commands are defined in the Enforce Codec Policy
Configuration Mode Commands chapter in this guide.
exit
Exits the current mode
and returns to the previous mode.
Usage:
Return to the previous
mode.
max-cscf-concurrent-sessions
Configures the maximum
number of concurrent sessions allowed per subscriber.
Syntax
max-cscf-concurrent-sessions numberdefault max-cscf-concurrent-sessions
number
Default: 5
Specifies the number
of concurrent sessions allowed per subscriber for this policy. number must
be an integer from 1 to 100.
default
Resets defaults for
this command.
Usage:
Use this command to
set the maximum number of allowed sessions per subscriber for this policy.
If enabled, the subscriber-policy-override command in
the CSCF Service Configuration Mode overrides the service-level
policy.
Example:
The following command
sets the maximum number of concurrent sessions for a subscriber using
this policy to 7:
max-cscf-concurrent-sessions 7
policy
Configures the overload
response for this policy. When the P-CSCF/A-BG becomes
congested, this overload policy is used to reject subsequent sessions
or redirect them to another server.
Product:
SCM (P-CSCF, A-BG)
Syntax
policy overload { redirect address1 [ weight weight1 ] [ address2 [ weight weight2 ] ] ...
| reject [ use-reject-code { admin-prohibited | insufficient-resources } ] }default policy overloadno policy overload redirect address1
[
address2
] ...
redirect address1 [ weight weight1 ] [ address2 [ weight weight2 ] ] ...
Specifies that upon
policy overload, the system will redirect the session to another CSCF.
address1 must
be expressed in dotted decimal notation for IPv4 or colon notation
for IPv6.
weight weight1: Defines
the priority of the redirect address.
weight1 must
be an integer from 1 to 10. Default is 1.
reject [ use-reject-code { admin-prohibited | insufficient-resources } ]
Specifies that upon
policy overload, the system will reject the session. This is the
default setting.
use-reject-code:
Specifies that a reject code will be returned upon policy overload.
- admin-prohibited:
Specifies that the “admin-prohibited” reject code
will be returned upon policy overload.
- insufficient-resources:
Specifies that the “insufficient resources” reject
code will be returned upon policy overload. This is the default reject
code.
default policy overload
Resets defaults for
this command.
no policy overload redirect address1 [ address2 ] ...
Removes configured policy
overload redirect address(es).
Usage:
Use this command to
define the response to an overload condition on the P-CSCF/A-BG using
this AoR policy.
Example:
The following command
configures the policy overload response to redirect to a series
of CSCFs with IP address of
1.2.3.4,
1.2.3.5, and
1.2.3.6 with
respective priorities (weights) of
1,
3, and
2:
policy overload redirect
1.2.3.4 weight 1 1.2.3.5 weight 3 1.2.3.6 weight 2
qos
Configures QoS bandwidth
settings for uplink and downlink.
Syntax
qos bandwidth { downlink| uplink } [ peak value ]
bandwidth { downlink| uplink }
downlink:
Configures the downlink bandwidth.
uplink: Configures
the uplink bandwidth.
peak value
Peak value of bandwidth
in kilobits per second (kbit/s).
value must
be an integer from 1 to 99999999.
Usage:
The P-CSCF/A-BG
fills the required bandwidth for downlink and uplink from the Session Description
Protocol (SDP) in the message when communicating with an external
policy server via Rx/Tx/Gq. Use this command to
configure the peak uplink and downlink bandwidth to be used when
the SDP does not contain bandwidth.
Example:
Set the peak uplink
bandwidth to
256 kbit/s:
qos bandwidth uplink
peak 256
video-sessions
Configures the policy
to allow video bearers. Default is disabled.
Syntax
[ default | no ] video-sessions
default | no
Disables the “allow
video sessions” feature.
Usage:
Use this command to
allow video session via this policy.
