How Vas Traffic Forwarding Works - Cisco SCE 8000 10GBE Software Configuration Manual

Chapter 14 Value-Added Services (VAS) Traffic Forwarding

How VAS Traffic Forwarding Works

Subscribers are provisioned to the VAS services as part of the normal provisioning process of new
subscribers to SCA BB.
When VAS traffic forwarding is enabled
application classifies each flow as either a VAS flow or as a standard flow (non-VAS flow).
Flows that are classified to a VAS service get the usual SCA BB service in addition to being forwarded
to the VAS servers for additional service. Traffic is processed first by the SCA BB application and then
forwarded to the VAS servers.
Traffic is routed to the VAS servers using VLAN tags to identify the traffic flows.
Figure 14-1
Subscribers
VAS traffic forwarding guidelines:
•
•
•
•
In VAS mode, the Cisco SCE performance envelope might be up to 50 percent lower than in the normal
Note
operation mode. The exact performance envelope is specific to the traffic mix in the customer network
and should be sized in advance.
OL-30621-02
Typical VAS Traffic Forwarding Installation
A single Cisco SCE 8000 platform can support up to 64 VAS servers.
A maximum of 64 Cisco SCE 8000 platforms can be connected.
A maximum of eight VAS server groups is supported.
The same VAS server may be used by more than one Cisco SCE platform.
(Figure 14-1), in addition to all its basic functions, the SCA BB
VAS Servers
PWR A
PWR B STATUS
MNG 1 BYPASS Cisco SCE
MNG 2 CONSOLE 2000
LINK/ 10/100/ AUX LINK RX TX 4xGB E Series
ACTIVE 1000 LINK/ ACTIVE 10/100/ LINK RX
1000 TX LINK RX
TX LINK RX
RX MM TX TX
RX MM
TX RX MM
TX RX
GBE-1 MM TX
SUB LINE
NET GBE-2
SUB LINE/CASCA
DE NET
SCE
Cisco SCE 8000 10GBE Software Configuration Guide
How VAS Traffic Forwarding Works
Network
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