Hi all,
I'm testing and analyzing the captured packet in ethereal.
but i can't know about LOOP traffic.
I connect two routers each other with fast-ethernet.
R1 ------------------------------------- R2
fa0/1 fa0/1
then R1 and R2 send the LOOP traffic each other per 60 secs.
R1's fast ethernet MAC : 00:1a:6c:fe:49:80
R2's fast ethernet MAC : 00:1a:6c:70:7a:66
when R1 and R2 connect each other and any configuration is not applyed in that interface,
R1 sends LOOP frame into the media as the below
source_MAC : 00:1a:6c:fe:49:80
destination_MAC : 00:1a:6c:fe:49:80
finally, source_MAC and destination_MAC is the same.
what is this frame??
is it keepalive frame?
why R1 sends LOOP frame that has use the same MAC(source and destination MAC)
if R1 sends the above LOOP frame,
I think R2 will ignore it because desination MAC is not R2's MAC.
is the reason that R1 sends LOOP frame just to test media state?
i attache the captured cap file.
you can find this issue in odd packet number(1,3,5....)
