[f-nsp] MAC Address Leakage

[Rolf Hanßen]

Hi,

we also that problem on FESX some years ago (nice if you try to connect to
an internet exchange via such a switch).
try "no vlan-dynamic-discovery"

Don't wonder, CLI (at least on FESX) does not suggest that command but it
works.

best regards
Rolf

> Hello list,
>
> I do have a simple question. I hope I find some pointers from some of you.
>
> The problem lies on our FESX and FI4802 switches. The FESX is running
> L2  code (SXS05100c.bin) and the FI4802 is runing L2/L3 code
> (BL308001t.bin). The setup is as simple as follows:
>
> - FESX has VLANs 111 and 222 tagged to port 5
> - FI4802 has VLANs 111 and 222 tagged to port 5 + ve interface for VLAN
> 222.
> - Port 5 on both switches are interconnected.
>
> In this setup, I should expect the MAC address of the FI4802 ONLY in
> VLAN 222 because that is where the VE interface is configured, however,
> I always see the MAC address in BOTH VLAN 111 and 222. I have disabled
> the following:
>
> - STP globally (which should restrict any BPDU packets)
> - CDP/FDP on port 5 on both switches which should also restrict any
> CDP/FDP messages which could result in MAC address discovery.
>
> However, all workarounds that I have done are not successful. Is there
> anyone experiences the same problem? If so, what would be the trick to
> restrict the MAC address discovery in the unintended VLAN?
>
> Look forward to your response.
>
> --
> Dana
>
>
>
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