TTL is a data plane OAM mechanism, unrelated to routing. When packets are forwarded, forwarding doesn't know about domain boundaries. If TTL is needed at all, it needs to be continuous. On May 24, 2011 4:01 AM, <heinerhum...@aol.com> wrote: > I have a newbie question concerning inter-domain multipath: > > What happens with the TTL counter when packets are received/sent by some > EBGP router at some ISP-to-ISP border? Is it re-initialized or not/never ? > > Heiner
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