20 messages in org.freebsd.freebsd-stableRe: Ethernet MTUs > 1500?| From | Sent On | Attachments |
|---|---|---|
| David Gilbert | Jul 3, 2000 8:22 pm | |
| Joerg Micheel | Jul 3, 2000 8:38 pm | |
| David Gilbert | Jul 3, 2000 8:43 pm | |
| Louis A. Mamakos | Jul 3, 2000 8:52 pm | |
| David Gilbert | Jul 3, 2000 9:37 pm | |
| Louis A. Mamakos | Jul 3, 2000 10:08 pm | |
| Tim Priebe | Jul 4, 2000 3:50 am | |
| Kevin Oberman | Jul 4, 2000 4:24 pm | |
| David Gilbert | Jul 4, 2000 6:46 pm | |
| Tim Priebe | Jul 5, 2000 5:46 am | |
| David Gilbert | Jul 5, 2000 6:20 am | |
| Luigi Rizzo | Jul 5, 2000 8:16 am | |
| Tim Priebe | Jul 5, 2000 9:56 am | |
| Luigi Rizzo | Jul 5, 2000 11:39 pm | |
| Tim Priebe | Jul 6, 2000 5:34 am | |
| David Gilbert | Jul 6, 2000 5:47 am | |
| Tim Priebe | Jul 6, 2000 8:04 am | |
| Luigi Rizzo | Jul 6, 2000 8:28 am | |
| Luigi Rizzo | Jul 6, 2000 8:37 am | |
| Tim Priebe | Jul 6, 2000 9:38 am |
| Subject: | Re: Ethernet MTUs > 1500? | |
|---|---|---|
| From: | Luigi Rizzo (lui...@info.iet.unipi.it) | |
| Date: | Jul 5, 2000 11:39:53 pm | |
| List: | org.freebsd.freebsd-stable | |
just curious, what do we do when we have multiple encapsulation ? (i.e. is this allowed ?)
...
I am not sure what you mean. If you mean "VLAN encapsulation", then it is a misunderstanding. The standard Ethernet frame is not encapsulated.
ok think of the following: I have a st machine which goes through a VLAN bridge out to a trunk interface, which in turn goes into a VLAN bridge which does trunkinking again ... basically you might end up with frames being encapsulated multiple times (and decapsulated on the reverse path). Now i wonder if this is allowed by the vlan spec and also how does a vlan bridge behaves when it sees a vlan-tagged frame on a non-trunk port. I do know how my FreeBSD-based vlan bridge behaves -- it does multiple encaps, but then if a packet becomes too large it is silently dropped by the interface.
cheers luigi -----------------------------------+------------------------------------- Luigi RIZZO, lui...@iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) Mobile +39-347-0373137 -----------------------------------+-------------------------------------
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