We have the following wan setup... Site 1 - asr1006 with ds3 link to ISP Layer 3 VPN from ISP Site 2 - 3945 isr with ds3 link to isp
Users experience problems with streaming video between sites. For testing I connected a laptop directly to each site router and ran jperf between the two. In the jperf output I see lots of out of order packets. I think that must be causing the video problems. However, I can not recreate the out of order packets using IP SLA on the routers.
How might I test for out of order packets on the routers? Thank you.
For out of order packets you'd need burst of traffic with very little spacing in between.
Something like ~10-20 ping echo requests with 0 timeout.
You won't see the reply in the CLI, because timeout is 0, but you could capture that with embedded packet capture.
That isn't really a good test though, because you've already seen that there is reordering with your test from the laptop. So the next step would be to go hop by hop and see where reordering is happening (i.e. per packet load sharing, combined with latency difference on two circuits). There is no per-packet load sharing, right?
Are you looking for a continuous test for the future, or are you looking to fix the problem?
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