RTS DV-3400 Información técnica descargar pdf (Pagina 384)

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Configuring for Network Management Applications

LLDP (Link-Layer Discovery Protocol)

You can override the default operation by configuring the port to advertise

any IP address that is manually configured on the switch, even if the port does

not belong to the VLAN configured with the selected IP address (page 15-43).

(Note that LLDP cannot be configured through the CLI to advertise an

addresses acquired through DHCP or Bootp. However, as mentioned above,

in the default LLDP configuration, if the lowest-order IP address on the VLAN

with the lowest VID for a given port is a DHCP or Bootp address, then the

switch includes this address in its LLDP advertisements unless another

address is configured for advertisements on that port.) Also, although LLDP

allows configuring multiple remote management addresses on a port, only the

lowest-order address configured on the port will be included in outbound

advertisements. Attempting to use the CLI to configure LLDP with an IP

address that is either not configured on a VLAN, or has been acquired by DHCP

or Bootp results in the following error message.

xxx.xxx.xxx.xxx: This IP address is not configured or is

a DHCP address.

Spanning-Tree Blocking. Spanning tree does not prevent LLDP packet

transmission or receipt on STP-blocked links.

802.1x Blocking. Ports blocked by 802.1x operation do not allow

transmission or receipt of LLDP packets.

Data Management on the 3400cl/6400cl Switches. For information on

how these switches manage LLDP data read from other devices, refer to “LLDP

Data Management on the Series 3400cl and 6400cl Switches” on page 15-32.

LLDP Data Management on the Series 3400cl and 6400cl

Switches

This section applies only to the Series 3400cl and 6400cl switches.

LLDP (Link-Layer Discovery Protocol) operation on the 3400cl and 6400cl

switches includes transmitting LLDP packets to neighbor devices and reading

LLDP packets received from neighbor devices.) This section describes points

to note regarding LLDP data received by a 3400cl or 6400cl switch from other

devices.

LLDP Neighbor Data

With LLDP enabled on a switch port, the port can read LLDP advertisements,

and stores the data from the advertisements in its neighbor database. If the

switch receives LLDP advertisements on the same port from the same

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