Provided by: lldpad_0.9.46-3.1_i386 bug


       vdp - Show / manipulate VDP TLV configuration


       lldptool -t -i ethx -V vdp -c enableTx

       lldptool -T -i ethx -V vdp -c enableTx=[yes|no]

       lldptool -t -i ethx -V vdp -c mode

       lldptool        -T        -i        ethx        -V        vdp        -c

       lldptool -t -i ethx -V vdp -c role

       lldptool -T -i ethx -V vdp -c role=[station|bridge]


       The VSI discovery protocol (VDP) is NOT a TLV in  the  LLDP  sense  but
       rather  a  protocol  to  manage  the  association  and deassociation of
       virtual station interfaces (VSIs) between the station and  an  adjacent
       switch.  VDP  uses  ECP  as  transport  for  VDP TLVs. An ECP frame may
       contain multiple VDP TLVs. Each  VDP  TLVs  contains  a  mode,  typeid,
       version, instanceid, mac and vlan for a VSI.


              Enables or disables VDP

       mode   shows or sets modes for VSIs with the following parameters:

              <mode> mode    (0=preassociate,    1=preassociate    with    RR,
                     2=associate, 3=deassociate)

                     manager (database) id

                     VSI type id

                     VSI type id version

                     VSI instance id

                     VDP filter info format

              <mac>  VSI mac address

              <vlan> VSI vlan id

       role   shows or sets the role of the local machine  to  act  as  either
              station (default) or bridge.

Theory of Operation

       The  VDP  protocol  is  used to pre-associate, associate or deassociate
       VSIs to and adjacent switch. Information about the  VSIs  is  formatted
       into  VDP  TLVs which are then handed to ECP for lower-level transport.
       Each ECP frame may contain multiple VDP TLVs.

       Two ways to receive VSI information exist in  llpdad:  via  netlink  or
       with  lldptool.  netlink  is  used  by  libvirt  to communicate VSIs to
       lldpad. lldptool can be used to  associate/deassociate  VSIs  from  the
       command line. This is especially helpful for testing purposes.


       Display if vdp is enabled on eth8
              lldptool -t -i eth8 -V vdp -c enableTx

       Enable vdp on eth8
              lldptool -T -i eth8 -V vdp -c enableTx=yes

       Display the currently configured VSIs for eth8
              lldptool -t -i eth8 -V vdp -c mode

       Associate a VSI on eth8
              lldptool  -T  -i  eth8  -V  vdp -c mode=2,12,1193046,1,fa9b7fff-

       Display the locally configured role for VDP on eth8
              lldptool -t -i eth8 -V vdp -c role

       Set the local role for VDP on eth8
              lldptool -T -i eth8 -V vdp -c role=bridge


       o      IEEE 802.1Qbg (


       Currently the code in lldpad reflects draft 0 of the upcoming standard.
       ECP/VDP TLVs on the wire can be decoded with wireshark > v1.8.


       lldptool-evb(8), lldptool(8), lldpad(8)


       Jens Osterkamp