Cisco Cisco Packet Data Gateway (PDG)
MVG Changes in Release 17
▀ MVG Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
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High Congestion
Extreme Congestion
Link Monitoring Average Throughput
Link Monitoring Average RTT
CSCua96416 - Video : URL stripping
Applicable Products: GGSN, HA, IPSG, P-GW, SAE-GW
Feature Changes
URL Stripping Feature Support
The URL Stripping feature allows the ASR5000 to strip a specific URL argument from the URL, based on ECS
configuration. The
configuration. The
stripurl token name2
value val2
command can be configured in the ACS Charging Action
Configuration mode to specify the URL token to be stripped. For example, for the following URL:
http://www.videoserver.com?Name1=val1&Name2=val2&Name3=val3 if the above CLI is used, this will strip
parameter
http://www.videoserver.com?Name1=val1&Name2=val2&Name3=val3 if the above CLI is used, this will strip
parameter
name2
and its optional value
val2
from the above URL and give the following new URL:
http://www.videoserver.com?Name1=val1&Name3=val3. The
stripurl token
command is case-sensitive. Hence if
the token name does not match, then charging action will not be applied.
Limitations of URL Stripping:
URL stripping has a limitation in case of partial packets. In cases where the HTTP Request header is split into
multiple packets, the token will not be stripped from URL while forwarding the request to the origin server.
This is because ECS does not buffer the HTTP packets for rule matching and added buffering will have
performance impact.
This is because ECS does not buffer the HTTP packets for rule matching and added buffering will have
performance impact.
URL stripping must have higher priority than Request-Readdressing in the rulebase. Otherwise even if the URL
contains the token, Request-Readdressing will happen before token is stripped.
URL Stripping cannot be used with Response-Readdressing feature. Once the URL is stripped and sent to the
new destination, the response may contain Video. Hence if Response-Readdressing is enabled, it will be re-
addressed back to the CAE Server, causing loop condition.
addressed back to the CAE Server, causing loop condition.
Command Changes
stripurl
This is a new command to configure the token and value to be stripped from the HTTP URL.
configure
active-charging service service_name
charging-action charging_action_name
stripurl token token_name [ value token_value ]
no stripurl