RAD Data comm Vmux-2100 Voice Trunking Gateway operation manual TDMoIP, 100 to 1461 bytes

Vmux-2100Installation and Operation Manual Chapter 4 Management from a Terminal

Function:

TDMoIP

Max Bytes In Multiplexed Frame (size of a multiplexed TDMoIP frame in bytes):

100 to 1461 bytes

Destination IP (IP address of the destination group)

Destination Bundle (number of destination bundle of the group with IP specified in the previous step)

Packetizing Interval (msec) (time interval allotted for the TDMoIP frame aggregation):

10 to 90 msec

Connectivity parameters – keep-alive messages configuration (see Figure 4-34):

Connectivity Parameters

1.Connectivity-packet rate (sec) [1 - 60]... (60)

2.Connectivity timeout cycles [1 - 5] ... (3)

@ - Db Update; # - Db Undo ESC-prev.menu; !-main menu; &-exit

Figure 4-34. Connectivity Parameters Menu

Vmux-2100 constantly monitors status of all connected bundles by sending the 64-byte keep-alive messages to remote device. Connectivity is confirmed by receiving a reply from the remote unit. This process is similar to pinging remote IP hosts. If reply is not received, usually due to the main link failure, Vmux-2100 disconnects the bundle and generates the BUNDLE IS OOS alarm. When the BUNDLE IS OOS alarm is generated, Vmux-2100 notifies appropriate PBX by sending “all 1s” string (CCS signaling) or OOS message (CAS signaling) on all timeslots of the disconnected bundle. This notification allows the attached PBX to stop transmitting over a faulty E1 and switch to a backup link.

You can specify the following connectivity parameters:

Connectivity packet rate (frequency of sending the keep-alive packets, from one packet per 1 second to one packet per 60 seconds)

Connectivity timeout cycles (number of attempts within which Vmux-2100 expects to receive at least one reply from the remote device).

For example, if you set the connectivity packet rate to 60 seconds and connectivity timeout to 3, Vmux-2100 disconnects a bundle from which it did not receive at least one reply within 180 seconds.

Configuring Main Link and Voice E1/T1 Ports 4-27