Hi, I'm currently looking into how to best integrate 10G lambda lines into a network. The two obvious ways are via "native" SDH/SONET or via 10 GE WAN PHY, but the latter isn't available on any router platform so far. What I like with 10GE is that its possible to run a ring segment via L2-switches on each end and connect to them via multiple L3-devices. So you can basically run a 10G line with a redundant pair of routers on each line concurrently and without any static bandwith partitioning. Am I missing something? Sine none of the long distance providers I talked with so far can provide 10 GE LAN PHY as client side interface, I'm currently looking for L2-switches that can perform this conversion between LAN and WAN PHY, but I only found the Nortel Passport and the Force10 E-Series, both AFAIK quite pricy product lines. Last informations I got about WAN PHY XENPAKs was that most switch manufacturers can only provide them sometime in Q1/2005 (but I read the same in an article on this list about Q1/2004 :] ). Are there other products I missed? Are there XENPAKs already available which work with main stream switch manufacturers although they don't sell them themselves so far? Grateful for any pointers or experiences... tschuess Stefan -- Stefan Mink, Schlund+Partner AG (AS 8560) Primary key fingerprint: 389E 5DC9 751F A6EB B974 DC3F 7A1B CF62 F0D4 D2BA