Huawei AC6605 Manual page 22

AC6605 Access Controller
Dual-Link Backup White Paper
Layer 2 Branched Networking (Tunnel Forwarding)
Figure 1-9 Dual-link backup in Layer 2 branched networking (tunnel forwarding)
Access switch
As shown in Figure 1-9, the ACs are only connected to an aggregation switch. Data packets
from STAs are forwarded through tunnels. AC1 is the active AC, and AC2 is the standby AC.
The configuration notes in this networking are as follows:
The configuration notes are the same as those in Layer 2 chain networking (tunnel
forwarding).
In addition, the BRAS interface connected to the aggregation switch must work at Layer 2 to
ensure Layer 2 communication between the ACs and APs. For the BRAS configuration, see
the configuration guide of the BRAS.
Issue 01 (2012-05-30)
VLAN 3931
Aggregation
switch
IP: 80.0.0.8
VLAN 3010
AP
IP: 19.19.19.X
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BRAS
VLAN 3010: management VLAN
VLAN 3931: service VLAN
Access switch
AP
IP: 19.19.19.X
1 Dual-Link Backup
AC1
IP: 19.19.19.1/24
AC2
IP: 19.19.19.2/24
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