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VAS over 10G
Figure 12-7
10G
505->525, 506->526...
VLAN 100 is stripped
10G
Access port
Trunk port
VAS flows enter the SCE platform without a VLAN tag, and are then transmitted from the SCE platform
with the VLAN tag of the VAS server. They must return from the VAS server to the SCE platform with
this tag, which is then stripped off.
In the solution using the 7600/6500, VLAN tags are also used to identify the external link. Note that this
is not the same VLAN tag used for the VAS servers. This VLAN tag must be defined as native in the
trunk ports towards the SCE platforms, so that the external traffic arrives at the SCE platform without a
VLAN tag.
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
12-34
Data Flow in VAS over 10G Topology
VAS server 1
N
525
SUBs
100
VLAN translation:
off (Native VLAN)
SUBs
100
525
N
VAS server 1
Chapter 12
VAS server 2
S
N
S
505
526
506
7600 A
EC1
EC2
SCE-A
1
2
SCE
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
ACTIVE
LINK/
10/100/
LINK RX
TX
1000
LINK RX
TX
LINK RX
RX
MM
TX
TX
RX
MM
TX
RX
MM
TX
RX
MM
SUB
GBE-1
TX
LINE
NET
GBE-2
SUB LINE/CASCA
DE NET
3
4
SCE-B
1
2
SCE
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
ACTIVE
LINK/
10/100/
LINK RX
TX
1000
LINK RX
TX
LINK RX
RX
MM
TX
TX
RX
MM
TX
RX
MM
TX
RX
MM
SUB
GBE-1
TX
LINE
NET
GBE-2
SUB LINE/CASCA
DE NET
3
4
No VLAN trans
EC1
EC2
7600 B
505
526
506
S
N
S
VAS server 2
Value Added Services (VAS) Traffic Forwarding
Net
101
10G
VAS traffic keep
the VLAN ID, non
VAS traffic get the
native VLAN - 101
Net
10G
101
OL-7827-12
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