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Archived from groups: comp.dcom.lans.ethernet (More info?)
Hello everybody,
this may sound like a strange thing but it does make sense in my case:
Context:
I want 2 machines to receive the same ethernet packages (for redundancy
reasons). The communication is unidirectional and uses UDP on top.
Currently this works by having 2 nodes with the same HW-/Ethernet-address
and IP-address on one hub(!)
Question:
How can I do the same thing with a switch?
Originally I thought this wasn't possible, then I found out about port
mirroring which kinda-works (but won't scale). Later on, somebody
told me that this (having the same HW-address on 2 switch-ports) is
supposed to work out of the box with ANY switch. Can anybody help me on
this last statement? Of course I tried that and it wouldn't work, it just
sent data the the port that last received the answer to an ARP.
Any hints?
Thanks a lot!
-Rainer
Hello everybody,
this may sound like a strange thing but it does make sense in my case:
Context:
I want 2 machines to receive the same ethernet packages (for redundancy
reasons). The communication is unidirectional and uses UDP on top.
Currently this works by having 2 nodes with the same HW-/Ethernet-address
and IP-address on one hub(!)
Question:
How can I do the same thing with a switch?
Originally I thought this wasn't possible, then I found out about port
mirroring which kinda-works (but won't scale). Later on, somebody
told me that this (having the same HW-address on 2 switch-ports) is
supposed to work out of the box with ANY switch. Can anybody help me on
this last statement? Of course I tried that and it wouldn't work, it just
sent data the the port that last received the answer to an ARP.
Any hints?
Thanks a lot!
-Rainer