On Wed, 29 Nov 2000, Daniel Senie wrote: <SNIP>
All the theory sounds great. Now, you've got a customer using the utility to test a circuit between two boxes, and calls to complain that he's only seeing 1/2 of the expected bandwidth, because Pathchar tells him he's getting X, and we said we provisioned 2X. Perhaps it's just a customer education issue.
At the expense of using all their bandwidth ttcp should provide some reasonable measure of performance under those circumstances.
I think you're making assumptions about how load is shared on parallel links. Often this is done by hashing the IP address or mac address of the packets as a way to ensure there will be no packet reordering issues on the parallel links. You can send traffic until you clog one of the two pipes, but will never cause spill to the other link.
-- -------------------------------------------------------------------------- Joel Jaeggli joelja@darkwing.uoregon.edu Academic User Services consult@gladstone.uoregon.edu PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E -------------------------------------------------------------------------- It is clear that the arm of criticism cannot replace the criticism of arms. Karl Marx -- Introduction to the critique of Hegel's Philosophy of the right, 1843.