Multiple Sce Platforms, Multiple Vas Servers - Cisco SCE2020-4XGBE-SM Configuration Manual

VAS Traffic Forwarding Topologies

Multiple SCE Platforms, Multiple VAS Servers

In this topology, multiple SCE platforms are connected to multiple VAS servers. Note that at least one
VAS server receives traffic from more than one SCE platform; if the VAS servers are each in an exclusive
relationship to a particular SCE platform, it would simply be several single SCE platform/multiple VAS
server topologies grouped together.
In Figure
platform forwards to VAS servers 2 and 3. A unique VLAN tag must designate each
SCE-platform-to-VAS-server path. This topology is illustrated with two SCE platforms, but a maximum
of 512 SCE platforms is supported (limited by the VLAN tag size).
The two Ethernet switches route the traffic to the VAS servers. The routing is VLAN based. The Ethernet
switch should be configured to trunk mode with learning disabled.
The data flow is the same as that for the previous topology.
Note that SCE platform redundancy on the cascade ports is not supported in this topology.
Figure 12-5
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
12-14
12-5, the top SCE platform forwards traffic to VAS servers 1 and 2, while the bottom SCE
Multiple SCE Platforms, Multiple VAS Servers
1 (S)
4 (N)
VLAN 505
VLAN 506
Ethernet
switch
VLAN 306
VLAN 307
4 (N)
1 (S)
Chapter 12
2 (N)
3 (S)
S N
VAS server 1
S N
VAS server 2
S N
VAS server 3
3 (S)
2 (N)
Value Added Services (VAS) Traffic Forwarding
VLAN 505
VLAN 506
Ethernet
switch
VLAN 306
VLAN 307
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