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VAS over 10G
Configuring VAS over 10G: General Guidelines
When configuring VAS over 10G, the following changes must be made to the configuration process:
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Note
The VLAN tags and configuration of the two sets of VAS servers must be identical.
Note
Additional VAS traffic forwarding configuration and monitoring options are available from the SCA BB
Console. See Managing VAS Traffic Forwarding Settings in the Cisco Service Control Application for
Broadband User Guide.
Configuring the 7600/6500 for VAS over 10G
This section explains some important points to keep in mind when configuring the 7600/6500 as part of
the VAS over 10G solution. For complete information on how to configure the 7600/6500, please refer
to the appropriate Cisco documentation.
Please refer to the following guidelines when configuring the 7600/6500 as part of the VAS over 10G
solution:
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Cisco SCE 2000 and SCE 1000 Software Configuration Guide
12-40
Configuration of the VAS traffic link is different (see Configuring the VAS Traffic Link (VAS over
10G))
You must configure a range of IP addresses as the source IP addresses for the health check (see
to Configure the Health Check IP Address, page
The health check must be specifically enabled to be compatible with the 10G topology (see
Enable Health Check Compatibility for VAS over 10G (MGSCP), page
The 7600/6500 device traffic distribution is based on the EtherChannel dispatching function.
Specifically it is required that:
External traffic coming from the subscriber side of the 7600/6500 device must be hashed by the
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EtherChannel according to the source IP
External traffic coming from the network side must be hashed according to the destination IP.
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This requirement insures that the same SCE platform handles all the traffic of a subscriber. Since
the hashing metric is configurable per line card, the external 10G link subscriber and network ports
must be on different line cards. The VAS servers should be connected to the 7600/6500 following
this convention as well:
Connect the VAS server subscriber leg to the same line card as the network 10G port, or to a
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line card that is configured with per destination IP dispatching function.
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Connect the VAS server network leg to the same line card as the subscriber 10G port, or to a
line card that is configured with per source IP dispatching function.
In order for the native VLAN configuration to be effective, disable the "vlan dot1q tag native"
configuration on the 7600/6500.
Introduce the VLAN tags of the VAS servers and the external subscriber and Network ports by
running the "vlan XXX" configuration command on the 7600/6500 device.
The spanning tree should be disabled for both native VLANS.
Chapter 12
Value Added Services (VAS) Traffic Forwarding
12-43).
12-45).
How
How to
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