Cabling Multiple Subnets

The 2020 IMG can be configured in a number of different ways. This topic illustrates the following cabling options:

The following illustration provides a high-level overview of how to cable and configure the system:

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For more information, refer to IP Address topic.

Configuring and Cabling One Subnet

To configure using one subnet, all information including Signaling, Data, and OAMP functions are sent over one subnet. The table below lists the configuration settings.

With different IP addresses for Control, Signaling, and Data:

With same IP addresses for Control and Signaling:

The following illustration shows the cabling for combining the Signaling, RTP Data, and OAMP functionality on one subnet:

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Configuring and Cabling Two Subnets

To configure using two subnets, combine the signaling and data on one subnet and the control on a separate subnet. The following table lists the configuration settings. Some of the settings are from the IP Address object:

The following illustration shows the cabling for combining the Signaling (SIP/H.323) and RTP Data on one subnet, and the OAMP functionality on a separate subnet:

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Configuring and Cabling Three Subnets (Signaling and Media Separate)

To configure using three subnets, control, data, and signaling are each on their respective subnets. The signaling and data ports must be connected to separate physical devices. The following table lists the configuration settings. Some of the settings are from the IP Address object:

The following illustration shows the cabling for combining the Signaling (SIP/H.323) on one subnet, RTP Data on a second subnet, and the OAMP functionality on a third subnet:

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Configuring and Cabling Three Subnets (Two SIP Networks with Signaling and Media Combined)

To configure using three subnets, the control is on one subnet, both SIP signaling and RTP Data are on a second subnet, and both SIP Signaling and RTP Data are on a third subnet. This configuration can only be applied when SIP signaling is being configured.

The following illustration shows the cabling for combining the both SIP Signaling and RTP data on one subnet, both SIP Signaling and RTP Data on a second subnet, and the OAMP functionality on a third subnet:

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