I am the assigned Gen-ART reviewer for this draft. For background on
Gen-ART, please see the FAQ at
Please resolve these comments along with any other Last Call comments you
Reviewer: Roni Even
Review Date: 2011-9-7
IETF LC End Date: 2011-9-27
IESG Telechat date:
Summary: This draft is not ready for publication as an informational RFC.
The IANA considerations section says:
"the values already allocated are in Table 1 of Section 4. The allocation
policy for new entries up to and including value 127 is "Standards Action".
The allocation policy for values 128 through 251 is "First Come First
Served". The values from 252 through 255 are for "Experimental Use"."
Yet this is document is intended for Informational status which contradict
the standard action. This is also true for the second registry defined.
Is this document really an Informational one?
1. In section 1.2.2 "Since "traditional" Layer 2 VPNs (i.e., real
Frame Relay circuits connecting sites) are indistinguishable from
tunnel-based VPNs from the customer's point-of-view, migrating from one to
the other raises few issues." What are the few issues?
2. In section 4 "L2VPN TLVs can be added to extend the information
carried in the NLRI, using the format shown in Figure 2". How is the TLV
carried in the NLRI, in which field, section 4.1 only talk about the
structure of the TLV.
3. Section 4.2 refers to section 4 but I am not sure where this
mechanism in section 4 is.
1. Section 3.1 is called network topology but the whole text is an
example of a network topology. Maybe the title should be "Example of a
2. Section 5 starts with "As defined so far in the document .." But
the using IP only is already discussed in previous sections.
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