Cisco Cisco ASR 5000
Traffic Shaping
Traffic Shaping is a rate limiting method similar to the Traffic Policing, but provides a buffer facility for
packets exceeded the configured limit. Once the packet exceeds the data-rate, the packet queued inside the
buffer to be delivered at a later time.
packets exceeded the configured limit. Once the packet exceeds the data-rate, the packet queued inside the
buffer to be delivered at a later time.
The bandwidth enforcement can be done in the downlink and the uplink direction independently. If there is
no more buffer space available for subscriber data system can be configured to either drop the packets or kept
for the next scheduled traffic session.
no more buffer space available for subscriber data system can be configured to either drop the packets or kept
for the next scheduled traffic session.
For more information on traffic policing and shaping, refer to the Traffic Policing and Shaping chapter
in this guide.
in this guide.
Important
Call/Session Procedure Flows
This section provides information on the function of the HSGW in an eHRPD network and presents call
procedure flows for different stages of session setup.
procedure flows for different stages of session setup.
The following topics and procedure flows are included:
•
Initial Attach with IPv6/IPv4 Access, on page 27
•
PMIPv6 Lifetime Extension without Handover, on page 29
•
PDN Connection Release Initiated by UE, on page 30
•
PDN Connection Release Initiated by HSGW, on page 31
•
PDN Connection Release Initiated by P-GW, on page 32
HSGW Administration Guide, StarOS Release 19
26
HRPD Serving Gateway Overview
Call/Session Procedure Flows