I am the assigned Gen-ART reviewer for this draft. For background on
Gen-ART, please see the FAQ at
<http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.
Please resolve these comments along with any other Last Call comments
you may receive.
Document: draft-ietf-lisp-multicast-08
Reviewer: Kathleen Moriarty
Review Date: 3 October 2011
IETF LC End Date: 28 September 2011
IESG Telechat date: (if known)
Summary: The document is ready with nits. I am sorry about the late review!
Major issues:
Minor issues:
Nits/editorial comments:
The last paragraph of section 3 introduces the use of the term 'oif-list'
within a definition for 'Unicast Encapsulated PIM Join/Prune Message'. I think
it would be helpful to define this term.
Section 4, consider breaking the first sentence of #6 into two sentences:
"When a packet is originated by the multicast host in the source
site, it will flow to one or more ITRs which will prepend a LISP
header by copying the group address to the outer destination
address field and insert its own locator address in the outer
source address field."
Section 5, 2nd paragraph: Recommend changing from:
"In a LISP site, packets
are originated from hosts using their allocated EIDs, those addresses
are used to identify the host as well as where in the site's topology
the host resides but not how and where it is attached to the
Internet."
To: "In a LISP site, packets originate from hosts using their allocated EIDs.
EID addresses
are used to identify the host as well as where in the site's topology
the host resides, but not how and where it is attached to the
Internet."
Section 7, IGMP section, second sentence, add a comma:
To: "One being that they are link-
local and not used over site boundaries and second, they advertise
group addresses that don't need translation."
Section 7: PIM-SSN - consider breaking this into a couple of sentences to make
it easier to read.
"In this case, there is a small
modification to the operation of the PIM protocol (but not to any
message format) to support taking a Join/Prune message originated
inside of a LISP site with embedded addresses from the EID
namespace and converting them to addresses from the RLOC namespace
when the Join/Prune message crosses a site boundary."
Section 7: PIM-Bidir Section - consider breaking the following into a couple of
sentences:
"When using
Bidir-PIM for inter-domain multicast routing, it is recommended to
use staticly configured RPs so core routers think the Bidir group
is associated with an ITR's RLOC as the RP address and site
routers think the Bidir group is associated with the site resident
RP with an EID address."
Section 9.2: This section is the first place where 'you' is used. The writing
style changes, you may want to rewrite and make it consistent with the rest of
the document. There is a 'you' in 9.3 as well and 'we' is used in section 11.
Section 12: Should the 'must' in the first paragraph be in caps?
"Mtrace functionality must be consistent with unicast traceroute
functionality where all hops from multicast receiver to multicast
source are visible."
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