Ccie certification cost Link layer discovery protocol ( LLDP)explanation
With the development of network technology, there are more and more types of devices accessing the network, and the configuration is more and more complicated. Devices from different device vendors also tend to add their own unique features, which leads to many different features in a network. Ccie certification cost.Devices from different vendors, in order to facilitate the management of such networks, need to enable devices from different vendors to discover and interact with each other's systems and configuration information in the network.
LLDP (Link Layer Discovery Protocol) is generated in this context, which provides a standard link layer discovery method. The information about the main device, the management address, the device identifier, and the interface identifier of the local device can be organized into different TLV (Type/Length/Value) and encapsulated in the LLDPDU (Link Layer Discovery Protocol Data Unit) to be directly connected to the neighbors. Ccie certification cost.After receiving the information, the neighbor saves it in the form of a standard MIB (Management Information Base) for the network management system to query and judge the communication status of the link.
These MIB information can be used to discover the physical topology of the device and manage configuration information. It should be noted that LLDP is only designed for information advertisement.Ccie certification cost. It is used to advertise information of one device and obtain information of other devices to get related MIB information. Ccie certification cost.It is not a configuration and control protocol. It can't configure the remote device through the protocol. It only provides information about the network topology and management configuration. These information can be used for management, configuration purposes, but how to use it depend on the users.Ccie certification cost.
In May 2005, this agreement has been recognized as the IEEE802.1AB-2005 standard. It replaces vendor-private protocols such as Cisco's Cisco Discovery Protocol, Extreme Networks' EDP (Extreme Discovery Protocol), Enterasys Networks' CDP (Cabletron Discovery Protocol), and Nortel Networks' NDP ( Nortel Discovery Protocol).
Simply put, LLDP is a proximity discovery protocol. It defines a standard way for Ethernet network devices, such as switches, routers, and WLAN access points, to advertise their presence to other nodes in the network and to store discovery information for neighboring devices. For example, detailed information such as device configuration and device identification can be announced with this protocol.Ccie certification cost.
Publisher:IE LAB
publish Website: http://ielab.network
WhatsApp: +8617782638871
Skype:live:ielab.anna
With the development of network technology, there are more and more types of devices accessing the network, and the configuration is more and more complicated. Devices from different device vendors also tend to add their own unique features, which leads to many different features in a network. Ccie certification cost.Devices from different vendors, in order to facilitate the management of such networks, need to enable devices from different vendors to discover and interact with each other's systems and configuration information in the network.
LLDP (Link Layer Discovery Protocol) is generated in this context, which provides a standard link layer discovery method. The information about the main device, the management address, the device identifier, and the interface identifier of the local device can be organized into different TLV (Type/Length/Value) and encapsulated in the LLDPDU (Link Layer Discovery Protocol Data Unit) to be directly connected to the neighbors. Ccie certification cost.After receiving the information, the neighbor saves it in the form of a standard MIB (Management Information Base) for the network management system to query and judge the communication status of the link.
These MIB information can be used to discover the physical topology of the device and manage configuration information. It should be noted that LLDP is only designed for information advertisement.Ccie certification cost. It is used to advertise information of one device and obtain information of other devices to get related MIB information. Ccie certification cost.It is not a configuration and control protocol. It can't configure the remote device through the protocol. It only provides information about the network topology and management configuration. These information can be used for management, configuration purposes, but how to use it depend on the users.Ccie certification cost.
In May 2005, this agreement has been recognized as the IEEE802.1AB-2005 standard. It replaces vendor-private protocols such as Cisco's Cisco Discovery Protocol, Extreme Networks' EDP (Extreme Discovery Protocol), Enterasys Networks' CDP (Cabletron Discovery Protocol), and Nortel Networks' NDP ( Nortel Discovery Protocol).
Simply put, LLDP is a proximity discovery protocol. It defines a standard way for Ethernet network devices, such as switches, routers, and WLAN access points, to advertise their presence to other nodes in the network and to store discovery information for neighboring devices. For example, detailed information such as device configuration and device identification can be announced with this protocol.Ccie certification cost.
Publisher:IE LAB
publish Website: http://ielab.network
WhatsApp: +8617782638871
Skype:live:ielab.anna
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