RFC2544 Testing Equipment

James Bensley jwbensley at gmail.com
Fri Jun 2 08:50:10 UTC 2017


On 30 May 2017 at 16:41, James Harrison <james at talkunafraid.co.uk> wrote:
> On 30/05/17 16:22, Nick Olsen wrote:
>>  Looking to test up to 1Gb/s at various packet sizes, Measure Packet loss,
>> Jitter..etc. Primarily Copper, But if it had some form of optical port, I
>> wouldn't complain. Outputting a report that we can provide to the customer
>> would be useful, But isn't mandatory. Doesn't need anything fancy, Like
>> MPLS awareness, VLAN ID's..etc.

...
> if
> you have a VPLS setup then probably you'd go from a 1U box next to your
> VPLS box through the VPLS pipe through to the endpoint.

If you are using VPLS then you need to send 1Gbs of broadcast traffic
and see how that cripples your network and send 1Gbps of BPDUs and ARP
requests/responses etc. to see how that ruins everything, as your
customer will loop it at some point. Also to check how your PEs work
and if storm-control or similar is working.

We had an issue with a VPLS instance where different model edge PEs
had their core facing interfaces built in different ways; some had a
physical interface configured facing the core, some a sub-interface,
some an SVI/BVI/BDI etc, it turned out that device X won't tunnel PPP
packets over VPLS/pseudowires when the core facing interface is an
SVI, model Y will but not when using EVCs etc.

People usually test TCP/UDP over IPv4 which doesn't tell you much
about what your equipment/service can or can't do and how it will
fail.

Cheers,
James.


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