[178236] in North American Network Operators' Group
Re: Interesting BFD discussion on reddit
daemon@ATHENA.MIT.EDU (Sudeep Khuraijam)
Fri Feb 20 17:17:38 2015
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>On (2015-02-17 06:11 +0530), Glen Kent wrote:
>
>> I think the hardware used was Broadcom. They have a few chipsets which
>>do
>> MD5 and (possibly) SHA in hardware for BFD -- which i have been told is
>> pretty much useless when you start scaling.
While I don=B9t fully understand the context of this particular test and th=
e
scaling limitation, there are merchant silicon, NPUs and even CPUs that do
support MD5 and SHA
at transport line rate requirements. BFD requirements are just a fraction
of these capabilities.
The option to negotiate capabilities should be available independent of
scaling/cost/inefficiencies at present time. It is a matter of
implementation/product design choice.
Sudeep Khuraijam
