On Mon, Nov 23, 2020 at 4:09 PM Andrew Lunn <and...@lunn.ch> wrote: > > > > > https://www.flexibilis.com/downloads/xrs/SpeedChip_XRS7000_3000_User_Manual.pdf > > Section 6.1.4 > > The forwarding decision is presented in Figure 19. Note that also > frames coming into a disabled port are received to the buffer memory, > but because their forwarding decision is not to forward them to any > port, they are dropped. This behavior however can be changed, and > frames can be forwarded from disabled ports to other ports by using > Inbound Policy (see Chapter 6.1.5). > > Sounds promising. And Section 6.1.5:
Indeed, I missed this. > > Inbound Policy checks the source and the destination MAC addresses of > all the received frames. The user can configure through the register > interface what kind of a treatment should frames with certain source > or destination MAC addresses get. Many protocols use protocol specific > multicast MAC addresses and the destination MAC address can therefore > be used for forwarding those frames to CPU port and not to other > ports. > > Looking at table 36, i think you can add a match for the BPDU > destination MAC address, and have i forwarded to the CPU port. I'll give it a try. > > Looks like you can add 15 such filters. So you might want to think > about how you want to use these, what other special packets do you > want to allow through? Okay. > > Andrew Thanks!
