Cisco Cisco Packet Data Gateway (PDG) Merkblatt
RNC Configuration Mode Commands
rab-asymmetry-indicator ▀
Cisco ASR 5x00 Command Line Interface Reference ▄
7765
rab-asymmetry-indicator
Configures the SGSN to force “Asymmetric-Bidirecitonal” as the RAB Asymmetry Indicator when uplink/downlink
bitrates are equal.
bitrates are equal.
Product
SGSN
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > Context Configuration > luPS Service Configuration > RNC Configuration
configure > context context_name > iups-service service_name > rnc id rnc_id
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-ctx-iups-service-rnc)#
Syntax
rab-asymmetry-indicator symmetric-bidirectional force-asymmetric-bidirectional
no rab-asymmetry-indicator symmetric-bidirectional force-asymmetric-bidirectional
default rab-asymmetry-indicator
default | no
Disables the override and sets the indicator based on the symmetry of the bitrates as described for the Default
Functionality below.
Functionality below.
Usage
This command defines an override that uses “Asymmetric-Bidirecitonal” as the RAB Asymmetry Indicator
when uplink/downlink bitrates are equal (default functionality item #1). This overrides the default
functionality (see below) for the RAB indicator in the RAB Assignment Request.
As a result of using this override command, two sets of bitrates, one for downlink and one for uplink, will be
included in RAB Assignment Requests for establish or modify per 3GPP TS 25.413.
Default Functionality: The SGSN sets the value of the RAB Asymmetry Indicator based on symmetry of
negotiated maximum bitrates in the following manner:
when uplink/downlink bitrates are equal (default functionality item #1). This overrides the default
functionality (see below) for the RAB indicator in the RAB Assignment Request.
As a result of using this override command, two sets of bitrates, one for downlink and one for uplink, will be
included in RAB Assignment Requests for establish or modify per 3GPP TS 25.413.
Default Functionality: The SGSN sets the value of the RAB Asymmetry Indicator based on symmetry of
negotiated maximum bitrates in the following manner:
If the uplink and downlink bitrates are equal, then it is set to “Symmetric-Bidirectional”.
If uplink bitrate is set to 0 kbps, then it is set to “Asymmetric-Unidirectional-Downlink”.
If downlink bitrate is set to 0 kbps, then it is set to “Asymmetric-Unidirectional-Uplink”.
If the uplink and downlink bitrates are non-zero and different, then it is set to “Asymmetric-
Bidirectional”.
Example
Override the use of the “Symmetric-Bidirectional” RAB Asymmetry Indicator for equal up/downlink bitrates
with the following command:
with the following command: