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authorBernhard Thaler <bernhard.thaler@wvnet.at>2015-05-04 22:47:13 +0200
committerDavid S. Miller <davem@davemloft.net>2015-05-05 19:20:28 -0400
commit784b58a327ad16967ab64bbfa558df81980d31e9 (patch)
treed60e73f6cdc35d14985964306fcfc809d3450278 /net/ethernet/eth.c
parentcd8ae85299d54155702a56811b2e035e63064d3d (diff)
bridge: change BR_GROUPFWD_RESTRICTED to allow forwarding of LLDP frames
BR_GROUPFWD_RESTRICTED bitmask restricts users from setting values to /sys/class/net/brX/bridge/group_fwd_mask that allow forwarding of some IEEE 802.1D Table 7-10 Reserved addresses: (MAC Control) 802.3 01-80-C2-00-00-01 (Link Aggregation) 802.3 01-80-C2-00-00-02 802.1AB LLDP 01-80-C2-00-00-0E Change BR_GROUPFWD_RESTRICTED to allow to forward LLDP frames and document group_fwd_mask. e.g. echo 16384 > /sys/class/net/brX/bridge/group_fwd_mask allows to forward LLDP frames. This may be needed for bridge setups used for network troubleshooting or any other scenario where forwarding of LLDP frames is desired (e.g. bridge connecting a virtual machine to real switch transmitting LLDP frames that virtual machine needs to receive). Tested on a simple bridge setup with two interfaces and host transmitting LLDP frames on one side of this bridge (used lldpd). Setting group_fwd_mask as described above lets LLDP frames traverse bridge. Signed-off-by: Bernhard Thaler <bernhard.thaler@wvnet.at> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethernet/eth.c')
0 files changed, 0 insertions, 0 deletions

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