Cisco Cisco ASR 5000
Quality of Service (QoS) Management for SGSN
Quality of Service Management ▀
SGSN Administration Guide, StarOS Release 18 ▄
This value indicates that the service data flow or bearer is not allowed to get resources that were already assigned to
another service data flow or bearer with a lower priority level. This is the default value applicable if this AVP is not
supplied.
another service data flow or bearer with a lower priority level. This is the default value applicable if this AVP is not
supplied.
Pre-emption-Vulnerability AVP
PRE-EMPTION_VULNERABILITY_ENABLED (0)
This value indicates that the resources assigned to the service data flow or bearer which can be pre-empted and allocated
to a service data flow or bearer with a higher priority level. This is the default value applicable if this AVP is not
supplied.
to a service data flow or bearer with a higher priority level. This is the default value applicable if this AVP is not
supplied.
PRE-EMPTION_VULNERABILITY_DISABLED (1)
This value indicates that the resources assigned to the service data flow or bearer which shall not be pre-empted and
allocated to a service data flow or bearer with a higher priority.
allocated to a service data flow or bearer with a higher priority.
Handling of ARP Values in Various Scenarios
Gn + GPRS Subscription
The following CLI command is used to send RAB parameters in RAB Assignment request:
config
apn-profile <profile_name>
ranap allocation-retention-priority-ie subscription-priority priority class { {
background | conversational | interactive | streaming } { not-pre-emptable | priority |
queuing-not-allowed | shall-not-trigger-pre-emptable } + }
background | conversational | interactive | streaming } { not-pre-emptable | priority |
queuing-not-allowed | shall-not-trigger-pre-emptable } + }
exit
S4 + EPC subscription
For EPC subscription with S4 activation, ARP in RAB is filled from the Evolved ARP applied for the PDP context. The
Evolved ARP applied is:
Evolved ARP applied is:
Subscribed Evolved ARP if P-GW does not send any evolved ARP in Create Session Response.
Or
Evolved ARP supplied by the P-GW.
S4+GPRS Subscription
For GPRS subscription with S4 activation, the ARP in RAB is filled from the Evolved ARP applied for the PDP
context. The Evolved ARP applied is:
context. The Evolved ARP applied is:
Evolved ARP derived from the GPRS subscription using CLIs displayed below, when the P-GW does not send
any Evolved ARP in Create Session Response:
config
call-control-profile <profile_name>
qos { gn-gp | ue-ambr } qos gn-gp { arp high-priority priority medium-priority priority |
pre-emption { capability { may-trigger-pre-emption | shall-not-trigger-pre-emption } |
vulnerability { not-pre-emptable | pre-emptable }
pre-emption { capability { may-trigger-pre-emption | shall-not-trigger-pre-emption } |
vulnerability { not-pre-emptable | pre-emptable }