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In this section: Table of Contents maxLevel 3

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About Logical Interfaces - Sonus SBC 1000

The 

Spacevars
0 series

supports  supports three system created logical interfaces (known as Ethernet 1 IP,  Ethernet 2 IP, and Ethernet 3 IP) used to hold the IP addresses of the Ethernet ports 1, 2, and 3 respectively (see Sonus SBC 1000 v2 Front Panel). In addition to the system created logical interfaces, the

Spacevars
0 series

also supports user created VLAN logical interfaces. VLAN logical interfaces are created each time a VLAN is added to the system. See About Logical Interfaces - VLAN Interfaces.

Info
The third Ethernet port on the SBC 1000 is available only if running selected SBC 1000 v2 hardware and SBC Release 6.0.0 or later. For hardware details, see Sonus SBC 1000 Hardware Specifications.

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Info
Typical Skype for Business deployment where all three Ethernet ports are used: Ethernet Port 1 to LAN Ethernet Port 2 to WAN network 1 (primary) Ethernet Port 3 to WAN network 2 (backup)

About Logical Interfaces - Sonus SBC 2000

The

Spacevars
0 series2

supports five system created logical interfaces (known as Administrative IP, Ethernet 1 IP, Ethernet 2 IP, Ethernet 3 IP, and Ethernet 4 IP) used to hold the IP addresses of the Admin port and each of the four Ethernet ports (see Sonus SBC 2000 Front Panel). In addition to the system created logical interfaces, the Sonus SBC 2000 also supports user-created VLAN logical interfaces. VLAN logical interfaces are created each time a VLAN is added to the system, and are further described in the About Logical Interfaces - VLAN Interfaces.

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The 

Spacevars
0 series2

system defines a logical interface called the Admin IP (Administrative IP, also known as the Management IP). This logical interface is used to hold the IP address of the Admin Ethernet port (see Sonus SBC 2000 Front Panel) . A secondary IP address may be configured for this logical interface. The primary IP address is a factory-default IP address of 192.168.128.2/24 and it is used for running Initial Setup of the 

Spacevars
0 series2

system.

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When delivered from the factory, Ethernet 1 IP is enabled with DHCP by default, and an IPv4 IP address is acquired via a connected DHCP server. This IP address is used for performing Initial Setup on the

Spacevars
0 series2

. See Running Initial Setup more information. The default IP address for the logical interface named Ethernet 2 IP is 192.168.129.2. After initial configuration, you may configure this logical interface using Settings or Tasks tabs in the WebUI.

About Logical Interfaces - SBC SWe Lite

The

Spacevars
0 series3

supports five system created logical interfaces (known as Administrative IP, Ethernet 1 IP, Ethernet 2 IP, Ethernet 3 IP, and Ethernet 4 IP). In addition to the system created logical interfaces, the Sonus SBC SWe supports user-created VLAN logical sub-interfaces.

Administrative IP

The 

Spacevars
0 series3

system supports a logical interface called the Admin IP (Administrative IP, also known as the Management IP). A Static IP or DHCP is used for running Initial Setup of the 

Spacevars
0 series3

system.

Warning
The Administrative IP port should used for Running Initial Setup, as well as all management related functionality.

Ethernet IP

The 

Spacevars
0 series3

system has four logical interfaces. In most deployments, one of these logical interfaces (typically Ethernet 1 IP) is assigned an IP address used for transporting all the VOIP media packets (e.g., RTP, SRTP) and all protocol packets (e.g., SIP, RTCP, TLS). DNS servers of the customer's network should map the 

Spacevars
0 series3

system hostname to this IP address. The hostname or these IP addresses may be used by UC-enabling systems such as SIP-phones, IP-PBX and Microsoft Lync Servers and for accessing the

Spacevars
0 series3

WebUI.

In the default software, Ethernet 1 IP is enabled and an IPv4 IP address is acquired via a connected DHCP server. This IP address is used for performing Initial Setup on the

Spacevars
0 series3

. See Running Initial Setup for more information. The default IP address for the logical interface named Ethernet 2 IP is 192.168.129.2. After initial configuration, you may configure this logical interface using Settings or Tasks tabs in the WebUI.

About Logical Interfaces - VLAN interfaces

SBC Edge 1000-2000

As described in the Managing VLANs - SBC Edge 1000-2000 section, each time a VLAN is created, a matching Logical Interface is also automatically created. This Logical Interface allows you to configure an IP address and have IP layer access for this VLAN. The configured IP address can be accessed through any Ethernet port that is associated with the given VLAN. VLAN Logical Interfaces behave the same as any other Logical Interface, and can be used for transporting VOIP media packets (e.g. RTP, SRTP), protocol packets (e.g. SIP, RTCP, TLS), and/or dynamic routing.

Note
When a VLAN Logical Interface is first created, it will be disabled by default.

SBC SWe Lite

VLAN sub-interfaces allow the separation of either management traffic between the service provider and the customer, or to keep media traffic from multiple sources separate (that need to exist on the same SWe Lite instance). For example, a service provider could use a VLAN to manage a SWe Lite at a customer premise, while also having a management interface for the customer; the service provider and the customer would be on the same physical network, but have separate logical interfaces.

When a VLAN sub-interface is configured, any IP traffic that uses that sub-interface will be VLAN tagged with the configured value.

VLAN sub-interfaces behave the same as any other Logical Interface, and are used for transporting VOIP media packets (e.g. RTP, SRTP), protocol packets (e.g. SIP, RTCP, TLS), and/or dynamic routing.

Configuration for each VLAN sub-interface is identical to the main interfaces (except the VLAN value is used to specify the interface as a sub-interface).

For configuring VLAN sub-interfaces, refer to Managing VLANs - SBC SWe Lite.

About Logical Interfaces - IPv4 and IPv6 Support

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Logical Interfaces and Redundant Ethernet Pairs

If the logical interface is part of a redundant ethernet pair, several of the options on the secondary logical interface will become read-only. 

Caption
0 Figure 1 Logical Interfaces
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