The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] re: native MPLS switch
Sorry, I forgot to mention a couple more items, but I see from private email that it should be made explicit. In addition to simplification by removing ATM and FR transport, we also need not have SONET/SDH in the forwarding stack. Nor do we necessarily need to have any particular flavor of IP, since both IPv4 and IPv6 are projected as clients/requestors of MPLS service. Depending on the location of the MPLS switch, the routing information in the control plane may come from BGP, IS-IS or OSPF. It doesn't matter. The addresses could even be phone numbers. And management manipulations such as ping (ICMP control messages) would be separated from issues in the forwarding machine. So we divorce from BISDN (no ATM, no SONET), and even from IP. The quesiton is, What would a native MPLS forwrding switch have to do in this division of labor? -- TT -------- Original Message -------- Subject: native MPLS switch Resent-Date: Tue, 22 Jan 2002 20:32:51 -0500 Resent-From: mpls-ops@mplsrc.com Date: Tue, 22 Jan 2002 19:30:38 -0500 From: Tom Scott <telecomtom@dacor.net> Organization: Vedatel To: mpls-ops@mplsrc.com http://search.ietf.org/internet-drafts/draft-osu-ipo-mpls-issues-02.txt Regarding the above URL and a message I posted last week, does anyone have a list or outline of the functions, or even better an architecture, of an MPLS forwarding device ("native MPLS switch") that does not depend on ATM, FR or any other L2 transport technology. See figure 1 of the draft (the right hand column, "2 layers"). Even if no equipment manufacturers and network operators are currently deploying native MPLS switches or whatever they might be called, the question still remains as to the design of a switch that borrows routing control information from, say, IS-IS and BGP routers, and is optimized for forwarding variable-length MPLS packets/frames, and a projected comparison with the price and performance of IP/POS routers and ATM cell switches. -- TT ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml |
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