On Fri, Sep 25, 2009 at 01:33:09PM -0300, Ruter Guike wrote: > Hi List. > > Is Cisco able to include Ethernet "preamble" and "FCS" within the mpls > packet, on EoMPLS? Is it configurable? > > AFAIK, these fields are removed, by default, before encapsulating... >
RFC4448 (Encapsulation Methods for Transport of Ethernet over MPLS Networks) specifies that preamble and FCS is not transported. There is RFC4720 (Pseudowire Emulation Edge-to-Edge (PWE3) Frame Check Sequence Retention) but to my knowledge it is not implemented in IOS yet. What would be the benefit of transporting the Ethernet preamble? hth Reinhold _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
