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Cisco SCE 2000 and SCE 1000 Software Configuration Guide
OL-7827-12
Chapter 12 Value Added Services (VAS) Traffic Forwarding
VAS over 10G
Figure 12-10
VAS over 10G Topology: Failover
•
The VAS link does not revert automatically. It will be switched again only if required due to a VAS
server group failure on this link.
•
The system always checks only one set of the VAS servers; those on the active VAS link.
Note
There is a user-configurable parameter that controls the link-switch rate if there has not been a successful
health check on the current VAS link. The default value of this parameter is less than the failure detection
time. It is recommended to configure a larger value.
Once there is a successful health check on the VAS link, the link switches immediately upon failure (see
How to Configure the Minimum Time between Link Switches, page 12-42
).
157212
VAS server 1
SCE
7600 B
N
EC2
S
N
S
EC1
EC2
EC1
3
SUBs
4
Net
SUBs
10G
10G
10G
10G
Active VAS link
SCE ports 1 & 2
Backup VAS link
SCE ports 3 & 4
Net
1
2
VAS server 1
LINK RX
Cisco SCE 20
00
Series
4xGBE
TX
RX
MM
TX
LINK RX TX
RX
MM
TX
LINK RX TX
RX
MM
TX
LINK RX TX
RX
MM
TX
GBE-1
SUB
LINE
NET
PWR B STAT
US
PWR A
BYPASS
10/100/
1000
LINK/
ACTIVE
10/100/
1000
LINK/
ACTIVE
GBE-2
SUB LINE/CA
SCADE NET
AUX
CONSOLE
MNG 2
MNG 1
525
505
525
100
101
100
101
505