Polycom® RMX™ 1800 Administrator’s Guide
16-28 Polycom, Inc.
LAN Redundancy
LAN redundancy enables the redundant LAN port connection to automatically replace the
failed port by using another physical connection and NIC (Network Interface Card). When a
LAN port fails, IP network traffic failure is averted and network or endpoints
disconnections do not occur. When LAN redundancy is enabled, by default, LAN 1 is the
active port and LAN 2 is its backup.

Requirements

LAN redundancy is disabled by default. However, you can change its availability by setting
the LAN_REDUNDANCY system flag.

Media, Signaling and Management Redundancy

On the Polycom RMX 1800, for Media, Signaling and Management Redundancy, you must
set LAN_REDUNDANCY system flag to YES.
To enable LAN redundancy:
1Make sure the LAN_REDUNDANCY system flag is set to YES.
LAN_REDUNDANCY is set as NO by default, and is hidden in the System Flags list.
To make sure LAN_REDUNDANCY is set as YES, do the following:
aOn the RMX menu, click Setup > System Configuration > System Configuration.
The System Flags dialog box opens.
bSelect MULTIPLE_SERVICES and make sure it’s value is NO. If not, click Edit
Flag and change its value to NO.
aSelect LAN_REDUNDANCY and make sure it’s value is YES. If not, click Edit
Flag and change its value to YES.
If you cannot find LAN_REDUNDANCY in System Flags dialog box, click New
Flag to add it, and set its value as YES.
2Click Close to exit the System Flags window.
3When prompted to reset the MCU, click Yes.

Hardware Monitor Indications

When LAN Redundancy is enabled on the Collaboration Server, LAN 1 port is Active. With
LAN redundancy, when LAN LEDs are lit they indicate that a physical connection of the
You cannot enable LAN Redundancy and Multiple Network Services at the same time.
That is, if MULTIPLE_SERVICES is set as YES in the System Flags, you must changes its value
to NO before you can set LAN_REDUNDANCY as YES.