Access Point Name Selection - Cisco ASR 5000 Administration Manual

▀ Feature Description
GPRS QoS Class Identifier Value
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For the downlink path, DSCP markings can be configured to control the DSCP markings for downlink packets. IP
header of the packet is updated with the value in TOS field. Note that there is no tunnel at access side in R-eWAG,
hence TOS field in subscriber IP packet is marked with DSCP value directly.
For uplink traffic—traffic from R-eWAG to GGSN through GTP tunnel—DSCP markings can be configured. In this
case, only outer IP header is used to routing the packet over Gn' interface. Hence, TOS field of only outer IP header is
changed, that is subscriber packet is not marked with DSCP value at R-eWAG.
DSCP marking can be configured with a "pass through" option, which when configured uses the marking received on
the ingress to mark packets on egress.

Access Point Name Selection

eWAG selects Access Point Name (APN) in the following manner:
 If the "Called-Station-ID" AVP is populated in the Accounting-Start Request received and the corresponding
APN is configured at R-eWAG, this APN is selected and call is accepted.
 If the "Called-Station-ID" AVP is populated in the Accounting-Start Request received and the corresponding
APN is not configured at R-eWAG, the call is dropped.
 If "Called-Station-ID" AVP is not populated in the Accounting-Start Request received, it is checked if the
default APN name is configured in the profile in service configuration. If that default APN is configured in R-
eWAG, the call is accepted.
 If the "Called-Station-ID" AVP is not populated in the Accounting-Start request received, it is checked if the
default APN name is configured in the profile in service configuration. If that default APN is not configured,
the call is dropped.
Important:
in R-eWAG.
▄ Cisco ASR 5000 Enhanced Wireless Access Gateway Administration Guide
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UMTS QoS Parameters
Traffic Class
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Conversational
Streaming
Streaming
Interactive
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Interactive
Interactive
Background
Note that in all cases only the NI part (as in the APN definition) needs to be specified as APN name
RADIUS-based Enhanced Wireless Access Gateway Overview
THP Signalling Indication
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3 No
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Source Statistics Descriptor
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