Hello, This is my throughput graph: asked 19 Jun '11, 09:18  ord |
Could anyone tell me what I can conclude about the 2 parallel lines in this graph? Thanks in advance.
2 Answers:
I see more that 2 parallel lines, but I assume you mean the two most "thick" ones. They tell you that most of he time, you have an average throughput of ~11.25 or ~11.75 MByte/s. So this looks like a healthy and fully utilized 100Mbit/s network. You can zoom in on the graph to get more detail... answered 19 Jun '11, 14:32  SYN-bit ♦♦ edited 20 Jun '11, 11:39  Guy Harris ♦♦ |
Hello, Can I ask you another question about the throughput graph? Following is my another graph: Capacity of the link is 100Mbps; however, you can see the throughput can reach around 1Gbps at some time. Is there any inconsistency? BR, answered 20 Jun '11, 08:19 ord I can imagine this being caused by in-accurate timestamping. When your capturing device is busy, it might queue a couple of packets and when it gets to timestamp them, they might get (almost) the same timestamps. Have a detailed look at the packets at the spike to see whether this is the case... (20 Jun '11, 20:36) SYN-bit ♦♦ |
Hmmm... thinking about this for a second time, I can't tell from the graph that the network is healthy, I can only tell from it that Wireshark sees near 100Mbit/s bandwidth.
(which can easily be the case when a Gbit/s link gets spanned to a 100Mbit/s span port)
Hi SYNbit,
Thanks a lot. Actually, this is the case we've done with 2 PCs transmitting data to each other over a direct 100Mbps link. I've already zoomed in the graph and seen that in fact, there's nothing parallel but many dots together :)
BR,