DELL N3000 User Manual

Switch Feature Overview

The IEEE 802.1AB defined standard, Link Layer Discovery Protocol (LLDP), 

allows the switch to advertise major capabilities and physical descriptions. 

This information can help you identify system topology and detect bad 

configurations on the LAN.
For information about configuring LLDP, settings see "Discovering Network 

The Link Layer Discovery Protocol for Media Endpoint Devices (LLDP-

MED) provides an extension to the LLDP standard for network configuration 

and policy, device location, Power over Ethernet management, and inventory 

management.
For information about configuring LLDP-MED, settings see "Discovering 

The Connectivity Fault Management (CFM) feature, also known as Dot1ag, 

supports Service Level Operations, Administration, and Management 

(OAM). CFM is the OAM Protocol provision for end-to-end service layer 

instance in carrier networks. The CFM feature provides mechanisms to help 

you perform connectivity checks, fault detection, fault verification and 

isolation, and fault notification per service in a network domain. 
For information about configuring IEEE 802.1ag settings, see "Configuring 

The Priority-based Flow Control feature allows the switch to pause or inhibit 

transmission of individual priorities within a single physical link. By 

configuring PFC to pause a congested priority (priorities) independently, 

protocols that are highly loss sensitive can share the same link with traffic that 

This feature is available on the N4000 series switches only.

This feature is available on the N4000 switches only.