lldptool-evb man page on SuSE

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lldptool(8)			     Linux			   lldptool(8)

NAME
       evb - Show / manipulate EVB TLV configuration

SYNOPSIS
       lldptool -t -i ethx -V evbCfg -c enableTx

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

       lldptool -t -i ethx -V evbCfg -c fmode

       lldptool -T -i ethx -V evbCfg -c fmode=[bridge|reflectiverelay]

       lldptool -t -i ethx -V evbCfg -c capabilities

       lldptool -T -i ethx -V evbCfg -c capabilities=[rte|ecp|vdp|none]

       lldptool -t -i ethx -V evbCfg -c rte

       lldptool -T -i ethx -V evbCfg -c rte=[<rte>]

       lldptool -t -i ethx -V evbCfg -c vsis

       lldptool -T -i ethx -V evbCfg -c vsis=[<number of vsis>]

DESCRIPTION
       The  EVB TLV is a TLV to announce the station and bridge's edge virtual
       bridging (evb) capabilities and request the bridge forwarding mode.  If
       both  sides  have  agree	 on edge control protocol (ECP), VSI discovery
       protocol (VDP) capabilities, both sides can exchange VDP TLV using  ECP
       frames.	 The  vsis  parameter  will set the maximum number of VSIs and
       show the number of currently configured VSIs.

ARGUMENTS
       enableTx
	      Enables the EVB TLV to be transmitted

       fmode  shows or sets the forwarding mode between	 bridge	 (default)  or
	      reflectiverelay (RR).

       capabilities
	      shows  or	 sets the local capabilities that are announced to the
	      adjacent switch in the TLV. This parameter will accept any  com‐
	      bination	of  rte, vdp or ecp, separated by ",". Use the keyword
	      "none" if you do not want to set any capabilities.

       rte    shows or set the local run time exponent (RTE). The RTE will  be
	      used as the base for the timing of the ECP and VDP protocols.

       vsis   shows  or	 sets  the number of virtual station interfaces (VSIs)
	      that are announced to the	 adjacent  switch  in  the  TLV.  This
	      parameter expects a number between 0 and 65535.

Theory of Operation
       The  EVB	 TLV  is  used	to  announce and exchange supported parameters
       between the station and an adjacent switch.

       If "reflectiverelay" is set as forwarding mode, the switch  will	 allow
       "reflection"  of	 frames coming from different sources at the same port
       back to	the  port.  This  will	allow  communication  between  virtual
       machines on the same host via the switch.

       The capabilities parameter is used to set RTE, ECP and VDP support. VDP
       TLVs in ECP frames can only be exchanged if both sides agree on ECP and
       VDP  as capabilities. RTE will be used as the base timing parameter for
       ECP and VDP.

EXAMPLE & USAGE
       Display locally configured values for eth8
	      lldptool -t -i eth8 -V evbCfg

       Display remotely configured values for eth8
	      lldptool -n -t -i eth8 -V evbCfg

       Display wether evb tlv is configured for tx on eth8
	      lldptool -t -i eth8 -V evbCfg -c enableTx

       Display the currently requested forwarding mode for eth8
	      lldptool -t -i eth8 -V evbCfg -c fmode

       Set the forwarding mode to reflective relay
	      lldptool -T -i eth8 -V evbCfg -c fmode=reflectiverelay

       Display the currently configured capabilities
	      lldptool -t -i ethx -V evbCfg -c capabilities

       Set the locally possible capabilities to RTE, ECP and VDP
	      lldptool -T -i ethx -V evbCfg -c capabilities=rte,ecp,vdp

       Resets the locally possible capabilities to "none"
	      lldptool -T -i ethx -V evbCfg -c capabilities=none

       Display the locally configured value for RTE
	      lldptool -t -i ethx -V evbCfg -c rte

       Set the value for RTE
	      lldptool -T -i ethx -V evbCfg -c rte=[<rte>]

       Display the configured maximum number of VSIs
	      lldptool -t -i ethx -V evbCfg -c vsis

       Set the maximum number of VSIs
	      lldptool -T -i ethx -V evbCfg -c vsis=[<number of vsis>]

SOURCE
       o      IEEE 802.1Qbg (http://www.ieee802.org/1/pages/802.1bg.html)

NOTES
       Currently the code in lldpad reflects draft 0 of the upcoming standard.
       EVB TLVs on the wire can be decoded with wireshark > v1.6.

SEE ALSO
       lldptool-vdp(8), lldptool(8), lldpad(8)

AUTHOR
       Jens Osterkamp

open-lldp			 February 2010			   lldptool(8)
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