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Cisco SCE 8000 10GBE Software Configuration Guide
OL-30621-02
Chapter 14 Value-Added Services (VAS) Traffic Forwarding
VAS Status and VAS Health Check
The health check procedure does not require a special interface with the VAS server; the health check
traffic goes through the same network channels as any other VAS traffic. However, there are two
assumptions the VAS servers should fulfill:
•
The VAS server should not drop traffic unless it is specifically configured to do so. Therefore, if the
connectivity between the VAS server and the Cisco SCE platform is operative, the health check
packets should reach the Cisco SCE platform safely.
Alternatively, it should be possible to configure the VAS server to pass traffic on specific ports (the
health check ports).
•
In case of a failure, the VAS server should drop and not bypass, the traffic (cut the link), so that the
Cisco SCE platform is able to identify the failure.
VAS Server States
When determining whether a VAS server is active, the system considers the following two parameters:
•
User-configured Admin mode—Enabled or disabled
•
VAS server state as reported by the health check