gnet_stats_start_copy_compat(9) [centos man page]

GNET_STATS_START_COP(9) 					 Linux Networking					   GNET_STATS_START_COP(9)

NAME

       gnet_stats_start_copy_compat - start dumping procedure in compatibility mode

SYNOPSIS

       int gnet_stats_start_copy_compat(struct sk_buff * skb, int type, int tc_stats_type, int xstats_type, spinlock_t * lock,
					struct gnet_dump * d);

ARGUMENTS

       skb
	   socket buffer to put statistics TLVs into

       type
	   TLV type for top level statistic TLV

       tc_stats_type
	   TLV type for backward compatibility struct tc_stats TLV

       xstats_type
	   TLV type for backward compatibility xstats TLV

       lock
	   statistics lock

       d
	   dumping handle

DESCRIPTION

       Initializes the dumping handle, grabs the statistic lock and appends an empty TLV header to the socket buffer for use a container for all
       other statistic TLVS.

       The dumping handle is marked to be in backward compatibility mode telling all gnet_stats_copy_XXX functions to fill a local copy of struct
       tc_stats.

       Returns 0 on success or -1 if the room in the socket buffer was not sufficient.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   GNET_STATS_START_COP(9)

lldptool(8)							       Linux							       lldptool(8)

NAME

       PFC - Show / manipulate PFC TLV configuration

SYNOPSIS

       lldptool -t -i ethx -V PFC [ -c [ enableTx | willing | enabled | delay ] ]

       lldptool -T -i ethx -V PFC <CONFIG_ARG=value ...>

	   CONFIG_ARG:=

	    enableTx=<yes|no>

	    willing=<yes|no|0|1>

	    enabled=<none|[0..7],[0..7],...>

	    delay=<integer value>

DESCRIPTION

       The PFC TLV is used to display and set current PFC TLV attributes.

ARGUMENTS

       enableTx
	      Enable the PFC TLV to be transmitted in the LLDP PDU for the specified interface.

       willing
	      Display  or set the willing attribute. If set to yes and a peer TLV is received then the peer PFC attributes will be used. If set to
	      no then locally configured attributes are used.

       enabled
	      Display or set the priorities with PFC enabled. The set attribute takes a comma separated list  of  priorities  to  enable,  or  the
	      string none to disable all priorities.

       delay  Display or set the delay attribute used to configure PFC thresholds in hardware buffers. If PFC is enabled and frames continue to be
	      dropped due to full hardware buffers then increasing this value may help.

Theory of Operations
       The PFC TLV uses the Symmetric attribute passing state machine defined in IEEE 802.1Qaz.  This means the attributes used will depend on the
       willing bit. If the willing bit is set to 1 and a peer TLV is received then the peers attributes will be used. If the willing bit is set to
       0 the local attributes will be used. When both the peer and local configuration are willing  a  tie  breaking  scheme  is  used.  For  more
       detailed coverage see the specification.

EXAMPLE &; USAGE
       Enable PFC for priorities 1, 2, and 4 on eth2
	      lldptool -T -i eth2 -V PFC enabled=1,2,4

       Disable PFC for all priorities on eth2
	      lldptool -T -i eth2 -V PFC enabled=none

       Display configuration of PFC enabled priorities for eth2
	      lldptool -t -i eth2 -V PFC -c enabled

       Display last transmitted PFC TLV on eth2
	      lldptool -t -i eth2 -V PFC

SOURCE

       o      IEEE 802.1Qaz (http://www.ieee802.org/1/pages/dcbridges.html)

NOTES

SEE ALSO

       lldptool(8), lldpad(8)

AUTHOR

       John Fastabend

open-lldp							    August 2012 						       lldptool(8)