On Thu, Mar 22, 2001 at 01:47:44PM -0800, Steve Cerruti wrote:
> Do I correctly understand your response as a way to measure loss of the actual
> netflow packets themselves?
> I am interested in knowing if there is a way to determine network packet loss
> using netflow packets. In other words, how does a router represent the loss
> and possible subsequent retransmission of a packet. Does it expire the current
> flow and start a new flow?
No, as flow's are defined as traffic from a source ip address / port
number til a destination ip address / port number.
> Are the resent packets added to the total of the affected flow or ignored?
Added, the router has no way of telling if it's a retransmission.
> Are there any separate counters in netflow of lost packets?
No, how should the router be able to tell if a packet is going to be
lost, or if a packet the router didn't recieve was ever sent.
-- Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456 Work: Network manager @ AS3292 (Tele Danmark DataNetworks) Private: FreeBSD committer @ AS2109 (A much smaller network ;-)
One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone to bind them. -- cflowd mailing list email@example.com
This archive was generated by hypermail 2b29 : Thu Mar 22 2001 - 23:34:24 PST