Enable IEEE 802.1 Organizationally-Specific TLVs

This section describes how to configure IEEE 802.1 organizationally-specific TLVs for transmission when the transmission status is set to disabled by default.

• Port VLAN ID

• Port and protocol VLAN ID

• VLAN name

1. On both switches, configure VLAN name as VLAN 1.

   SEFOS# configure terminal
   SEFOS(config)# vlan 1
   SEFOS(config-vlan)# ports extreme-ethernet 0/1 name vlan1
   SEFOS(config-vlan)# end

2. On both switches, enable IEEE 802.1 organizationally-specific TLVs.

   SEFOS# configure terminal
   SEFOS(config)# interface extreme-ethernet 0/1
   SEFOS(config-if)# lldp tlv-select dot1tlv port-vlan-id protocol-vlan-id all vlan-name all
   SEFOS(config)# end

3. At switch 1, review the local system information.

   SEFOS# show lldp local extreme-ethernet 0/1
   Port Id SubType            : Interface Alias
   Port Id                : Slot0/1
   Port Description            : Ethernet Interface
   Enabled Tx Tlvs            : Port Vlan
   ...

   When the switch comes up, no protocol group is initially mapped to VLAN, so no entry is present in the VLAN module for the PPVID. A port and protocol VLAN entry is created in LLDP with the protocol VLAN ID value of 0, and the entry is transmitted after you enable PPVID TLV transmission.

4. Review information about the learned neighbors on a particular interface.

   SEFOS# show lldp neighbors extreme-ethernet 0/1 detail
   ...
   Extended 802.1 TLV Info
   -Port VLAN Id                : 1
   -Port & Protocol VLAN Id
   Protocol Vlan Id            Support        Status
   ----------------            -------        ------
   0                    Supported        Enabled
   -Vlan Name
   Vlan Id                Vlan Name
   -------                ---------
   1                    vlan1
   ------------------------------------------------------------
   Total Entries Displayed        : 1