Session Border Controllers
39
Mediant 4000B SBC
Hardware Installation Manual
5. Cabling the Device
5.1.1
Deployment of a Standalone Device
The Ethernet ports on the SBC CPU module can operate in pairs, called
Ethernet Groups
,
to provide Ethernet port 1+1 redundancy. In each pair, one port serves as the active
Ethernet port while the other as standby. When the active port fails, the device switches to
the standby Ethernet port.
By default, the ports are assigned to pairs, as shown in the figure below. However, you can
change the port assignment, including the option to assign only one port to an Ethernet
Group (i.e., no 1+1 redundancy scheme). For more information, refer to the
User's Manual
.
Figure 5-2: Default Ethernet Groups
Notes:
•
Two different MAC addresses are assigned to the Ethernet ports: one to ports
GE 1-4
(upper ports) and another to ports
GE 5-8
(lower ports). See above figure.
•
When implementing 1+1 Ethernet port redundancy, please adhere to the following
guidelines:
√
Each port in the Ethernet Group (port pair) must be connected to a different switch
(but in the same subnet).
√
Ports with the same MAC address (e.g., GE 1-4 ports) must each be connected to
a different Layer-2 switch (as the ports share the same MAC address).
Summary of Contents for Mediant 4000B SBC
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