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NETGEAR M4500 Series Switches CLI Command Reference Manual 453
5.15.29. lldp dcbx port-role
This command is used to configure configure the port role to manual, auto-upstream, auto-downstream and
configuration source. In order to reduce configuration flapping, ports that obtain configuration information from
a configuration source port will maintain that configuration for 2x the LLDP timeout, even if the configuration
source port becomes operationally disabled.
Format lldp dcbx port-role <auto-down | auto-up | configuration-source | manual>
Default Manual
Mode Interface Config
5.15.30. no lldp dcbx port-role
Use the no lldp dcbx port-role to reset this function to default.
Format no lldp dcbx port-role
Term
Definition
auto-down
Configure interface as auto-down stream. Advertises a configuration but is not
willing to accept one from the link partner. However, the port will accept a
configuration propagated internally by the configuration source. An auto-
downstream port that receives an internally propagated configuration overwrites
its local configuration with the new parameter values. These ports have the
willing bit set to disabled. Selection of a port based upon compatibility of the
received configuration is suppressed. These ports should be connected to a
trusted FCF.
auto-up
Configure interface as auto-up stream. Advertises a configuration, but is also
willing to accept a configuration from the link-partner and propagate it internally
to the auto-downstream ports as well as receive configuration propagated
internally by other auto-upstream ports. A port that receives an internally
propagated configuration overwrites its local configuration with the new
parameter values. The first auto-upstream that is capable of receiving a peer
configuration is elected as the configuration source. These ports have the willing
bit enabled. These ports should be connected to FCFs.
configuration-source
Configure interface as configuration source. In this role, the port has been
manually selected to be the configuration source. Configuration received over
this port is propagated to the other auto-configuration ports. Selection of a port
based upon compatibility of the received configuration is suppressed. These
ports should be connected to a trusted FCF. These ports have the willing bit
enabled. Note that coexistence of configuration sources is not allowed.
manual
Configure interface as manual port. Ports operating in the Manual role do not
have their configuration affected by peer devices or by internal propagation of
configuration. These ports will advertise their configuration to their peer if DCBX
is enabled on that port. The willing bit is set to disabled on manual role ports.