Hi,

Thanks for the draft.

I am the assigned OPSDIR reviewer to conduct a last call review of this draft.

General comments:

The draft lists how existing OAM protocols/tools can be used in DetNet with IP data plane. However, I don't think it's clearly stated in either the abstract or the introduction section, so it's not clear to me what information the draft is trying to deliver. OAM principles as stated in the abstract? or how existing solutions may work in DetNet?

There are some editorial nits in the draft, and some of them made the draft hard to read. I'd suggest an editorial pass and then I can do another round of review.

Detail comments with line number from idnits:

80	 usually performed on-demand. These tasks achieved by a combination
s/usually performed/are usually performed
s/achieved/are achieved

In Section 2.1, there should be a ":" after each term/abbreviation. 

145	 packets. For example, that can be achieved with a 3-tuple
146	 (destination and source IP addresses in combination with DSCP value)
147	 used to identify the IP DetNet flow. In such a scenario, an IP OAM
148	 session between the same pair of IP nodes would share the network
149	 treatment with the monitored IP DetNet flow regardless of whether
150	 ICMP, BFD, or STAMP protocol is used.

Q: Do you mean as long as two protocols, for example ICMP and BFD, have the same DSCP value, the network treatment will be the same?

158	 protocol like, for example, UDP, a DetNet node must able to associate
s/must able to/must be able to

168	 protocol is one of the assigned by IANA, then the UDP source port can
s/the assigned/those assigned

167	 DetNet flow. When the UDP destination port number used by the OAM
168	 protocol is one of the assigned by IANA, then the UDP source port can
169	 be used to achieve co-routedness of OAM, and the monitored IP DetNet
170	 flow in the multipath environments, e.g., Link Aggregation Group or
171	 Equal Cost Multipath. 
Q: It's not clear how using the same UDP source port the OAM packets will be guaranteed to follow the same path as the monitored IP flow. Please clarify.

266	 and MPLS data planes analyzed in Section 6.2 of

268	 [I-D.ietf-detnet-mpls-oam]. Also, requirements and recommendations
nits: broken line.

268	 [I-D.ietf-detnet-mpls-oam]. Also, requirements and recommendations
269	 for OAM interworking between a DetNet domain with MPLS data plane and
270	 OAM of a TSN equally apply to a DetNet domain with an IP data plane.
I'd suggest rewriting this sentence. I can't understand what it's trying to say.


Thanks,
Yingzhen