Chapter 4: Web Configuration

After pressing Next, you will see the web page listed as the right one. Choose the protocol that you would like to use.

Please refer to Quick Setup for more information if you don’t know how to set the configuration.

Enable QoS:

Check this item to enable IP QoS for a PVC. It can improve performance for selected classes of applications. For more details please refer to

Advanced/Quality of Service section.

If you choose PPPoE (or Bridging), you will see the option for 802.1Q VLAN Tagging.

802.1Q VLAN Tagging:

802.1Q-compliant switch ports can be configured to transmit tagged or untagged frames. A tag field containing VLAN (and/or 802.1p priority) information can be inserted into an Ethernet frame. If a port has an 802.1Q-compliant device attached (such as another switch), these tagged frames can carry VLAN membership information between switches, thus letting a VLAN span multiple switches. However, it is important for network administrators to ensure ports with non-802.1Q- compliant devices attached are configured to transmit untagged frames. Many NICs for PCs and printers are not 802.1Q-compliant. If they receive a tagged frame, they will not understand the VLAN tag and will drop the frame. Also, the maximum legal Ethernet frame size for tagged frames was increased in 802.1Q (and its companion, 802.3ac) from 1,518 to 1,522 bytes.

After checking Enable 802.1Q VLAN Tagging, you will have to enter a VLAN ID, as shown in the figure.

VLAN ID:

The VLAN Identifier is a 12 bit field. It uniquely identifies the VLAN to which the frame belongs to and can have a value between 0 and 4095.

Click Next to continue.

Notice that 802.1Q VLAN Tagging function can only be invoked under PPPoE and Bridging Mode; the system will not provide this option while setting PPPoA or IPoA mode.

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Siemens SLI-5310-I IAD manual Enable QoS, Advanced/Quality of Service section, 802.1Q Vlan Tagging

SLI-5310-I IAD, SLI-5310 specifications

The Siemens SLI-5310 and SLI-5310-I Integrated Access Devices (IAD) are advanced telecommunications solutions designed to facilitate efficient connectivity and high-quality voice services over IP networks. These devices stand at the intersection of traditional telephony and modern IP-based communications, offering a robust solution for businesses requiring integrated voice and data services.

One of the main features of the Siemens SLI-5310 is its ability to support multiple communication protocols, making it versatile for various network environments. This device can handle both TDM (Time Division Multiplexing) and VoIP (Voice over Internet Protocol), allowing organizations to transition smoothly from legacy systems to modern IP solutions. The SLI-5310-I variant extends these capabilities further by offering integrated router functionalities, ensuring reliable data transfer alongside voice services.

The SLI-5310 supports a range of interfaces, including analog and digital ports, enabling connection with various telephone types and devices. This flexibility ensures that businesses can leverage their existing telecommunications infrastructure while upgrading to newer technologies. The device is also equipped with advanced echo cancellation and voice compression technologies, improving voice quality and minimizing latency during calls.

In terms of management and monitoring, the Siemens SLI-5310 series comes with a user-friendly interface, which allows administrators to configure and manage settings seamlessly. Built with advanced security features, these IADs protect against potential threats, ensuring that both voice and data communications remain secure. Encryption protocols and support for VPNs (Virtual Private Networks) further enhance the security framework.

In summary, the Siemens SLI-5310 and SLI-5310-I IADs are versatile communications solutions that combine traditional and modern technologies to deliver high-quality voice and data services. With support for multiple interfaces, advanced voice processing capabilities, and robust security measures, these devices cater to the evolving needs of businesses looking for reliable telecommunications solutions. Their ability to integrate seamlessly into existing networks while offering scalability makes them an ideal choice for enterprises aiming to future-proof their communication systems.