Zte ZXR10 5250-28TC, Product Description

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ZXR10 5250 Product Description
3.2.9 LLDP
LLDP (Link Layer Discovery Protocol) is a kind of neighbor discovery protocol. With LLDP,
network device notifies its information to other devices and establish neighbor
relationship with different devices. ZXR10 5250 supports multiple LLDP TLV attributes. It
can correctly notify its port and system information to its neighbors.
At the same time ZXR10 5250 supports LLDP MED (LLDP for Media Endpoint Devices).
The switch uses this protocol to configure the terminal device that connected to it.
3.2.10 UDLD
UDLD is a L2 network protocol used to detect the single-pass on physical link between
the devices. Sometimes only receiving is normal or only transmitting is normal on the
physical link between two devices. At this time, the link status may be normal but the
packet transmission is abnormal. Detecting the abnormality, UDLD can send alarm or
close the port, which is decided based on the configuration.
3.2.11 Voice vlan
Voice VLAN provides high forwarding priority for voice data packet. When voice device
access is detected, no matter what the default priority for the voice data flow is, ZXR10
5250 transfers the legal voice data to the specified voice VLAN and distributes a high
priority to it, so as to guarantee the voice packet is forwarded with priority.
3.2.12 802.1x authentication
DOT1X (IEEE 802.1x) is the port-based network access control protocol. It optimizes
authentication means and authentication architecture and resolves the issues caused by
conventional PPPoE and Web/Portal authentication, so it is more suitable for broadband
Ethernet.
IEEE 802.1x protocol architecture consists of three major parts: Supplicant System,
Authenticator System and Authentication Server System.
1 Supplicant system is a user terminal system which is usually installed with a
supplicant software. The user starts the software to initiate the authentication in
IEEE802.1x protocol. In order to support the port-based access control,
supplicant system needs to support EAPOL (Extensible Authentication Protocol
Over LAN).
2 Authenticator system is usually the network equipment supporting IEEE802.1x
protocol, such as switch. The equipment corresponds to the ports of different
users (They may be physical ports, or MAC address, VLAN and IP of user
equipment). Two logic ports are available: controlled port and uncontrolled port.