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Chapter 16-Network Services
Polycom, Inc. 16-37
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 cables are connected to both LAN 1 and LAN 2
ports, the RMX automatically selects which port is active and which is redundant.
Configuration Requirements
LAN Redundancy is disabled by default and is enabled by changing the
LAN_REDUNDANCY system flag to YES and connecting the appropriate LAN cables to
the LAN ports on the Collaboration Server as follows:
RealPresence Collaboration Server (RMX) 1500
• Connect the additional LAN cable to LAN 1 port on the RTM IP.
RealPresence Collaboration Server (RMX) 2000
• Connect the additional LAN cable to LAN 1 port on the RTM LAN.
• In the Setup> System Configuration > System Flags dialog box, add the flag
RMX2000_RTM_LAN and set it to YES to activate the installed RTM LAN card.
•A system reset is required when adding the RMX2000_RTM_LAN flag.
RealPresence Collaboration Server (RMX) 4000
• Connect the additional LAN cable to LAN 1 port on the RTM LAN.
•On the RealPresence Collaboration Server (RMX) 2000/RealPresence Collaboration Server
(RMX) 4000, LAN Redundancy can be enabled simultaneously with Multiple Networks.
To enable the Multiple Networks option, set the MULTIPLE_SERVICES flag to YES
• If required, reset the Collaboration Server.
On all systems:
• LAN Redundancy can be disabled by setting the LAN_REDUNDANCY System Flag to
NO.
•If the LAN_REDUNDANCY System Flag value set to NO, the LAN 2 port must be
connected to the IP network.
Media Redundancy
On the RealPresence Collaboration Server (RMX) 1500 LAN 1 and LAN 2 are the redundant
media ports:
• LAN 2 port is used for standard communications
On a RealPresence Collaboration Server (RMX) 2000, an RTM LAN card is required.
For more information see the RealPresence Collaboration Server (RMX) 2000 Hardware Guide,
"Installing or Replacing the RTM LAN” on page 1-37.
On the RMX 1500/2000/4000, full media redundancy is supported if only one IP Network Service is
defined per media card.