Ha Configuration; Initial Ha Configuration; Network Topology Types And Rx/Tx Ethernet Port Group Settings - AudioCodes Mediant 800B User Manual

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User's Manual

HA Configuration

This section describes HA configuration.

By default, HA is disabled on the device. When a device is loaded with valid HA

configuration and it is the first device to be loaded, it becomes the active device. The

second device that is loaded with HA configuration becomes the redundant (standby)

41.1.1 Network Topology Types and Rx/Tx Ethernet Port Group

The initial configuration of HA depends on how you want to deploy your HA system in the

network. The Maintenance interface, used for the HA link between Active and Redundant

units, should be configured on a dedicated Ethernet Device and Ethernet Group (port),

separate from the other IP network interfaces. The separation of the Maintenance interface

from other interfaces must also be done externally to the units, either by physical

separation (i.e., different physical networks) or by logical separation (using VLANs). When

using VLANs, make sure that you use a different Ethernet Device for each IP network

interface (see 'Configuring Underlying Ethernet Devices' on page 132 and 'Configuring IP

Network Interfaces' on page 135).

interfaces, logical separation of traffic may not occur.

The Maintenance interface can employ Ethernet port redundancy (recommended), by

using two ports. This is enabled by configuring the Ethernet Group associated with the

Maintenance interface with two ports.

The required receive (Rx) and transmit (TX) mode for the port pair in the Ethernet Group

used by the Maintenance interface is as follows (not applicable to Mediant VE):

(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 you assign the same Underlying Ethernet Device to all the IP network

Figure 41-1: Rx/Tx Mode for Direct Connection

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41. HA Configuration