Hi, Ben Campbell
Thank you for proposing the problems.
Please see inline.
If no objections, I will update the draft accordingly.
If any future problems, please connect me. Thanks.
Best Regards
Zongpeng Du
-----Original Message-----
From: Ben Campbell [mailto:[email protected]]
Sent: Wednesday, January 24, 2018 11:38 AM
To: The IESG <[email protected]>
Cc: [email protected]; Tianran Zhou
<[email protected]>; [email protected]; [email protected]; Tianran
Zhou <[email protected]>; [email protected]
Subject: Ben Campbell's No Objection on draft-ietf-opsawg-capwap-alt-tunnel-11:
(with COMMENT)
Ben Campbell has entered the following ballot position for
draft-ietf-opsawg-capwap-alt-tunnel-11: No Objection
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------
-1, 3rd paragraph after figure 1: We should avoid using lawful intercept as a
justification for protocol mechanisms.
[zongpeng]
Accept. We can delete the unnecessary explanations.
Old:
Figure 1 describes a system with Local Bridging. The AC is in a
centralized location. The data plane is locally bridged by the WTPs
leading to a system with centralized control plane with distributed
data plane. This system has two benefits: 1) reduces the scale
requirement on data traffic handling capability of the AC and 2)
leads to more efficient/optimal routing of data traffic while
maintaining centralized control/management.
New:
Figure 1 describes a system with Local Bridging. The AC is in a
centralized location. The data plane is locally bridged by the WTPs
leading to a system with centralized control plane with distributed
data plane.
Would it be ok ?
[/zongpeng]
-1.3: Serving as an "archival record" seems like an odd use of "experimental".
That sounds more "informational" to me.
[zongpeng]
There have been discussions about it among the authors, chairs, and the ADs.
Finally, the "Experimental" type is decided.
It a hard decision to make whether the document should be "Experimental",
"Informational" or "Historic".
Some personally understanding about it to share:
According to https://tools.ietf.org/html/rfc2026#section-4.2, the Informational
type means:
An "Informational" specification is published for the general
information of the Internet community, and does not represent an
Internet community consensus or recommendation. The Informational
designation is intended to provide for the timely publication of a
very broad range of responsible informational documents from many
sources, subject only to editorial considerations and to verification
that there has been adequate coordination with the standards process
(see section 4.2.3).
Our document is not for a timely publication of new information.
So it is not very proper for us to declare an Informational type.
Also in RFC2026, it is said that
The "Experimental" designation typically denotes a specification that
is part of some research or development effort. Such a specification
is published for the general information of the Internet technical
community and as an archival record of the work, subject only to
editorial considerations and to verification that there has been
adequate coordination with the standards process (see below).
So we consider that the "Experimental" type is more suitable here.
[/zongpeng]
-7: I agree with Kathleen's comments about the security considerations.
[zongpeng]
We have answered the comments from Kathleen, and made some changes to the
section 7. Security Considerations.
[/zongpeng]
Editorial Comments and Nits:
- The abbreviations that were expanded in the abstract should be expanded again
on the body.
[zongpeng]
Old:
Service Providers are deploying very large Wi-Fi deployments (ranging
from hundreds of thousands of Access Points, APs (referred to as WTPs
in CAPWAP terminology) to millions of APs.
New:
Service Providers are deploying very large Wi-Fi network containing
hundreds of thousands of Access Points (APs), which are referred to as
Wireless Transmission Points (WTPs) in Control and Provisioning of
Wireless Access Points (CAPWAP) terminology.
Old:
o 802.3 Tunnel: All data frames are tunneled to the AC in 802.3
format.
New:
o 802.3 Tunnel: All data frames are tunneled to the Access Controller
(AC) in 802.3 format.
Old:
Figure 2 shows a system where the tunnel mode is configured to tunnel
data frames between the WTP and the AC either using 802.3 Tunnel or
802.11 Tunnel configurations. Operators deploy this configuration
when they need to tunnel the user traffic. The tunneling requirement
may be driven by the need to apply policy at the AC or a legal
requirement to support lawful intercept of user traffic. This
requirement could be met in the locally bridged system (Figure 1) if
the access router implemented the required policy.
New:
Figure 2 shows a system where the tunnel mode is configured to tunnel
data frames between the WTP and the AC either using 802.3 Tunnel or
802.11 Tunnel configurations. Operators deploy this configuration
when they need to tunnel the user traffic. The tunneling requirement
may be driven by the need to apply policy at the AC or a legal
requirement to support lawful intercept of user traffic. This
requirement could be met in the locally bridged system (Figure 1) if
the Access Router (AR) implemented the required policy.
[/zongpeng]
-1, paragraph after figure 1: Missing article before the first occurrence of
"CAPWAP".
[zongpeng]
I think the first one of the modifications above can solve the problem. Is it
OK?
[/zongpeng]
-1.3, first sentence: " Service Provider's " should either be " Service
Providers' " or "the Service Provider's
[zongpeng]
Agree. We prefer the " Service Providers' ". Thanks.
[/zongpeng]
-2, 3rd paragraph after figure 5: Missing article before WTP (multiple
occurrences).
[zongpeng]
If we have modified it in the section 1, I think it would be ok to use the WTP
directly here. Can you agree?
[/zongpeng]
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