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[lacp] Set "aggregatable" flag in response LACPDU 

Some switches do not allow an individual link (as defined in IEEE Std
802.3ad-2000 section 43.3.5) to work alone in a link aggregation group
as described in section 43.3.6.  This is verified on Dell's
PowerConnect M6220, based on the Broadcom Strata XGS-IV chipset.

Set the LACP_STATE_AGGREGATABLE flag in the actor.state field to
announce link aggregation in the response LACPDU, which will have the
switch enable the link aggregation group and allow frames to pass.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/20/merge
Sven Ulland 2014-07-21 15:41:25 +02:00 committed by Michael Brown
parent 5888c887a4
commit de65a240b9
1 changed files with 2 additions and 1 deletions
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3
src/net/eth_slow.c
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@ -167,7 +167,8 @@ static int eth_slow_lacp_rx ( struct io_buffer *iobuf,
lacp->actor.key = htons ( 1 ); lacp->actor.key = htons ( 1 );
lacp->actor.port_priority = htons ( LACP_PORT_PRIORITY_MAX ); lacp->actor.port_priority = htons ( LACP_PORT_PRIORITY_MAX );
lacp->actor.port = htons ( 1 ); lacp->actor.port = htons ( 1 );
lacp->actor.state = ( LACP_STATE_IN_SYNC | lacp->actor.state = ( LACP_STATE_AGGREGATABLE |
LACP_STATE_IN_SYNC |
LACP_STATE_COLLECTING | LACP_STATE_COLLECTING |
LACP_STATE_DISTRIBUTING | LACP_STATE_DISTRIBUTING |
( lacp->partner.state & LACP_STATE_FAST ) ); ( lacp->partner.state & LACP_STATE_FAST ) );