Cisco Cisco ASR 5000
Quality of Service (QoS) Management for SGSN
Quality of Service Management ▀
SGSN Administration Guide, StarOS Release 18 ▄
1. QCI table
APN AMBR: The APN-AMBR limits the aggregate bit rate that can be provided across all Non- GBR PDP
contexts of the same APN (for example, excess traffic may get discarded by a rate shaping function). Each of
those Non-GBR PDP contexts can potentially utilize the entire APN AMBR (for example, when the other Non-
GBR PDP contexts do not carry any traffic). The GBR PDP contexts are outside the scope of APN AMBR.
The PGW enforces the APN AMBR in downlink. Enforcement of APN AMBR in uplink may be done in the
UE and additionally in the PGW.
those Non-GBR PDP contexts can potentially utilize the entire APN AMBR (for example, when the other Non-
GBR PDP contexts do not carry any traffic). The GBR PDP contexts are outside the scope of APN AMBR.
The PGW enforces the APN AMBR in downlink. Enforcement of APN AMBR in uplink may be done in the
UE and additionally in the PGW.
UE AMBR: The UE AMBR limits the aggregate bit rate that can be provided across all Non-GBR PDP contexts
of a UE (for example, excess traffic may get discarded by a rate shaping function). Each of the Non-GBR PDP
contexts can potentially use the entire UE AMBR (for example, when the other Non-GBR PDP contexts do not
contexts can potentially use the entire UE AMBR (for example, when the other Non-GBR PDP contexts do not