Last Call Review of draft-ietf-l2vpn-pbb-evpn-09
review-ietf-l2vpn-pbb-evpn-09-secdir-lc-meadows-2015-01-22-00

I have reviewed this document as part of the security directorate's

ongoing effort to review all IETF documents being processed by the

IESG.  These comments were written primarily for the benefit of the

security area directors.  Document editors and WG chairs should treat

these comments just like any other last call comments.

This draft describes a method for integrating Ethernet Provider Backbone Bridge
(PBB) with Ethernet VPN (EVPN) to

improve the delivery of MAC addresses, in particular with respect to
scalability.

I don’t see any security concerns with this draft, but I do have some comments
on the Security Considerations section.

It is very short, and all it says that the security considerations in the EVPN
draft apply directly to this draft. I assume that

it is also the case that this draft introduces no new security considerations.
 If so, you should say so, and you should

also say why.  Also, I was wondering if the mechanisms introduced in this
draft, by introducing a greater degree of organization

in the delivery of MAC addresses, makes it easier to detect duplicated MACs,
which were mentioned as a security risk in the

Security Considerations of the EVPN draft.  If this is the case, it would be a
good thing to mention here.

I’d consider the draft somewhere between ready with nits and ready with issues.
 I don’t see any real security issues

here, just a Security Considerations section that needs to be expanded a
little, but this seems to be a little more than what the

secdir guidelines would call a nit.

Cathy Meadows



Catherine Meadows

Naval Research Laboratory

Code 5543

4555 Overlook Ave., S.W.

Washington DC, 20375

phone: 202-767-3490

fax: 202-404-7942

email:

catherine.meadows at nrl.navy.mil