LLDP

LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet., defined in the IEEE Institute of Electrical and Electronics Engineers. 802.1AB standard, is a Layer 2 protocol that allows network devices to advertise their identity and capabilities on a LAN Local Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server.. ArubaOS supports a simple one-way neighbor discovery protocol with periodic transmissions of LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. PDUs, allowing managed devices to advertise identity information and capabilities to other nodes on the network and store the information discovered about the neighbors.

LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. supported devices use attributes known as TLVs to receive and send information such as configuration information, device capabilities, and device identity to their neighbors. These TLVs contain type, length, and value descriptions, use the destination MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. address 01:80:c2:00:00:0e, and are constrained to a local link. SNMP Simple Network Management Protocol. SNMP is a TCP/IP standard protocol for managing devices on IP networks. Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, and more. It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention.  support is available for LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MIBs Management Information Base. A hierarchical database used by SNMP to manage the devices being monitored..

The following sections describe:

Supported TLVs

ArubaOS supports the following basic management TLVs, all of which are enabled by default:

MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. Phy configuration TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

Management address TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

Maximum frame size TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

Port-description TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

Port VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. ID TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

System capabilities TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

System description TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

System name TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. name TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed.

LLDP-MED

LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices. is an extension to LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. that supports interoperability between VoIP Voice over IP. VoIP allows transmission of voice and multimedia content over an IP network. devices and other networking clients. LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices. network policy discovery lets end-points and network devices advertise their VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. IDs (for example, voice VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN.), priority levels, and DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. values. ArubaOS supports a maximum of eight LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. -MED Network Policy profiles.

Creating an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MED network policy profile does not apply the configuration to any AP or AP interface or interface group. To apply the LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices. network policy profile, you must associate it to an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile, then apply that LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile to an AP wired port profile.

You can use the command, ap lldp med-network-policy-profile to define an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MED network policy profile that defines DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. values and L2 priority levels for a voice or video application.

 

When you use the default LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. configuration, the LLDP RX and LLDP TX parameters are disabled. You must explicitly enable them for LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. to work.

Restrictions and Limitations

Inventory-management and Location TLVs are not currently supported.

Aggregation-management and Power-management TLVs are not supported.

CDP Cisco Discovery Protocol. CDP is a proprietary Data Link Layer protocol developed by Cisco Systems. CDP runs on Cisco devices and enables networking applications to learn about the neighboring devices directly connected to the network. proprietary is not supported.

The maximum number of neighbors that can be learned on the managed device (including all the per port neighbors) is 250.

Configuring LLDP

Configure LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. using the following commands on a specific managed device interface. For detailed information on the LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. commands, refer to the interface fastethernet | gigabitethernet , show lldp and show ap lldp command in the ArubaOS CLI Reference Guide.

(host) [mynode] (config) #interface gigabitethernet <slot>/<module>/<port>

(host) [mynode] (config-if) #lldp

fast-transmit-counter <1-8>

fast-transmit-interval <1-3600>

med

receive

transmit

transmit-hold <1-100>

transmit-interval <1-3600>

 

If you use the default LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. configuration, the transmit and Receive parameters are disabled. You must explicitly enable them for LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. to work.

Configuring LLDP-MED

When you create an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MED network policy profile, you must associate it to an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile, then apply that LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile to an AP wired port profile.

The following commands create a LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MED network policy profile for streaming video applications and marks streaming video as high-priority traffic.

(host) [mynode] (config) #ap lldp med-network-policy-profile vid-stream

(host) [mynode] (AP LLDP-MED Network Policy Profile "vid-stream") #dscp 48

(host) [mynode] (AP LLDP-MED Network Policy Profile "vid-stream") #l2-priority 6

(host) [mynode] (AP LLDP-MED Network Policy Profile "vid-stream") #tagged

(host) [mynode] (AP LLDP-MED Network Policy Profile "vid-stream") #vlan 10

Next, the LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. MED network policy profile is assigned to an LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile, and the LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. profile is associated with an AP wired-port profile.

(host) [mynode] (config) #ap lldp profile video1

(host) [mynode] (AP LLDP Profile "video1") #lldp-med-network-policy-profile vid-stream

(host) [mynode] (config) #ap wired-port-profile corp2

(host) [mynode] (AP wired port profile "corp2") #lldp-profile video1

Monitoring LLDP Data and Configuration

The following show commands display aggregate and per-interface information about LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. configurations and neighborhood data.

Table 1: LLDP Show Commands

Command

Description

show lldp interface gigabitethernet

<slot>/<module>/<port>

Displays LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. information for all interfaces, or include the optional gigabitethernet <slot>/<module>/<port> parameters to display LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. information for a specific interface.

show lldp neighbor gigabitethernet

<slot>/<module>/<port> [details]

This command displays information about LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. peers, including the name of the neighbor, MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. address and the capabilities of the peer to operate as a router, bridge, access point, phone or other network device. Include the optional gigabitethernet <slot>/<module>/<port> parameters to display detailed information about LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. neighbors for a specific interface, or include the details parameter to display additional details about the device type, and LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices., if applicable.

show lldp statistics gigabitethernet

<slot>/<module>/<port>

Displays information about LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. TLVs sent and received on all interfaces, or include the optional gigabitethernet <slot>/<module>/<port> parameters to display LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. TLV Type-length-value or Tag-Length-Value. TLV is an encoding format. It refers to the type of data being processed, the length of the value, and the value for the type of data being processed. statistics for a specific interface.

show ap lldp

med-network-policy-profile

Displays a list of LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices. Network Policy profiles, or display the current configuration settings of an individual profile.

show ap lldp counters

Shows LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. counters for a specific AP, or all APs sending or receiving LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. PDUs.

show ap lldp [<profile>]

Displays a list of LLDP-MED LLDP–Media Endpoint Discovery. LLDP-MED facilitates information sharing between endpoints and network infrastructure devices. Network Policy profiles, or display the current configuration settings of an individual profile.