Re: [bmwg] Several inconsistencies in current draft-ietf-bmwg-ngfw-performance Wed, 07 April 2021 15:21 UTC

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Date: Wed, 7 Apr 2021 11:21:34 -0400
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Subject: Re: [bmwg] Several inconsistencies in current draft-ietf-bmwg-ngfw-performance
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Thanks for your feedback Petr. It is appreciated. We will look at these and
let you know if we have any questions.




From: bmwg <> On Behalf Of Redkin Petr
Sent: Wednesday, April 7, 2021 7:01 AM
Subject: [bmwg] Several inconsistencies in current




Please, pay attention at several inconsistencies in current netsecopen draft
(saw in 6-7 versions).


a.	in part of the document SNI is mandatory

The client endpoint SHOULD send TLS Extension Server Name Indication (SNI)
information when opening a security tunnel

b.	in part of the document SNI is optional

For TLS the client MAY use Server Name Indication (SNI).

If using SNI, the server will then perform an SNI name check with the
proposed FQDN compared to the domain embedded in the certificate.

2.	New connections in sustain phase

a.	From this sentence engineer may assume, that no new connections are
established in sustain phase because all clients & connections (it is
different concepts) must be established at a ramp up

Sustain phase starts when all required clients (connections) are active and
operating at their desired load condition.

b.	But it is not, otherwise we cannot measure CPS metric in sustain
phase, for example in traffic mix test

Optional KPIs: TCP Connections Per Second and TLS Handshake Rate

3.	Client source port

a.	In part of the document source port is variable in range and varies
per client connection

The source port range SHOULD be in the range of 1024 - 65535. 

The behavior of the client is to sweep through the given server IP space,
sequentially generating a recognizable service by the DUT.  Thus, a
balanced, mesh between client endpoints and server endpoints will be
generated in a client port server port combination.

b.	But it is not clear from this sentence

Each client endpoint performs the same actions as other endpoints, with the
difference being the source IP of the client endpoint and the target server
IP pool.



Best Regards, 

Petr Redkin


Performance research expert, 

JSC "InfoTeCS"