•Correct model for ECN
setting for multicast packet?
•IP Level (ECN
bis)
–ECN is set (typically)
by RED (c..f AF work by Dina Papagiannaki at
UCL/Sprint..)
–Equivalent for
Multicast is to set ECN at router at ingress to congested
link, then:
–randomly select which branch to forward the packet with ECN (i.e. clear for all other branches)