I have a doubt regarding the use of ECN with WRED.
R1 ----- R2
if we have 2 routers R1 & R2 connected on a FR-link.
we have confgured a policy-map on R1 with a class-map for FTP traffic. this class also configured with WRED(ECN enabled).
bandwidth percent 1
FTP server is placed behind R2 router. if there is congestion on the link and there is packet drop on class-map FTP, will R1 send the congestion notification to R2?
I mean to ask that ECN bit is used to convey the ocngestion notification to remote router?
Thanks for replying in advance