There's a setting other_config:forward-bpdu in the OVS Bridge table that
determines whether OVS forwards BPDUs by default. The documentation
says:
other_config : forward-bpdu: optional string, either true or false
Option to allow forwarding of BPDU frames when NORMAL action is
invoked. Frames with reserved Ethernet addresses (e.g. STP
BPDU) will be forwarded when this option is enabled and the
switch is not providing that functionality. If STP is enabled
on the port, STP BPDUs will never be forwarded. If the Open
vSwitch bridge is used to connect different Ethernet networks,
and if Open vSwitch node does not run STP, then this option
should be enabled. Default is disabled, set to true to enable.
The following destination MAC addresss will not be forwarded
when this option is enabled.
01:80:c2:00:00:00
IEEE 802.1D Spanning Tree Protocol (STP).
01:80:c2:00:00:01
IEEE Pause frame.
01:80:c2:00:00:0x
Other reserved protocols.
00:e0:2b:00:00:00
Extreme Discovery Protocol (EDP).
00:e0:2b:00:00:04 and 00:e0:2b:00:00:06
Ethernet Automatic Protection Switching (EAPS).
01:00:0c:cc:cc:cc
Cisco Discovery Protocol (CDP), VLAN Trunking Protocol
(VTP), Dynamic Trunking Protocol (DTP), Port Aggregation
Protocol (PAgP), and others.
01:00:0c:cc:cc:cd
Cisco Shared Spanning Tree Protocol PVSTP+.
01:00:0c:cd:cd:cd
Cisco STP Uplink Fast.
01:00:0c:00:00:00
Cisco Inter Switch Link.
01:00:0c:cc:cc:cx
Cisco CFM.
On Thu, Feb 14, 2013 at 11:05:00PM +0000, Rob Sherwood wrote:
> FYI, if this is OVS, there is some mode (that I never quite did figure
> out) where it internally drops LLDPs. This somewhat makes sense
> because LLDPs are supposed to be link local and a switch is not
> supposed to forward them. I solved my problem by moving to a more
> modern version of OVS. Not sure if this is of help to you, but at
> least it's a data point.
>
> - Rob
> .
>
> On Tue, Feb 12, 2013 at 2:26 PM, Peter Fales
> <peter.fa...@alcatel-lucent.com> wrote:
> > On Mon, Feb 11, 2013 at 09:59:39PM -0800, Murphy McCauley wrote:
> >> Are your interfaces in promiscuous mode?
> >
> > Yes, that's the wireshark default, and I see all the other traffic I
> > expect to see (including LLDP packets that use the Nicira multicast
> > address). Only the packets using the LLDP multicast address are
> > "invisible."
> >
> >
> > --
> > Peter Fales
> > Alcatel-Lucent
> > Member of Technical Staff
> > 1960 Lucent Lane
> > Room: 9H-505
> > Naperville, IL 60566-7033
> > Email: peter.fa...@alcatel-lucent.com
> > Phone: 630 979 8031
> > _______________________________________________
> > openflow-discuss mailing list
> > openflow-discuss@lists.stanford.edu
> > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
> _______________________________________________
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