AudioCodes Mediant 4000 SBC User Manual page 606


(Recommended Physical Connectivity) If the Maintenance ports of both devices are
connected directly to each other without intermediation of switches, configure the
mode to 2RX/1TX:

If the two devices are connected through two (or more) isolated LAN switches (i.e.,
packets from one switch cannot traverse the second switch), configure the mode to
2RX/2TX:
Figure 33-2: Redundancy Mode for Two Isolated Switches

For Geographical HA (both units are located far from each other), 2Rx/1Tx port mode
connected to a port aggregation switch is the recommended option:
Note:
•
When two LAN switches are used, the LAN switches must be in the same subnet
(i.e., broadcast domain).
•
To configure Rx/Tx modes of the Ethernet ports, see ''Configuring Ethernet Port
Groups'' on page 125
User's Manual
Figure 33-1: Rx/Tx Mode for Direct Connection
Figure 33-3: Rx/Tx Mode for Geographical HA
606
Mediant 4000 SBC
Document #: LTRT-40203