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EoSDH is the term used for transporting ethernet frames over a SDH transmission network.If you can remember SDH, one way this can be achieved is using Virtual Concatanation. Here, n x VC12s are concatanated to get the required speed. ex: if n=5, the...
In general speaking MPLS is layer 2.5. But actually there is no layer 2.5 in the OSI or TCP/IP stack. If you analyse the frame and packet header formats, you will find that MPLS is actually layer2.
I think it's not the no. of switches, but rather the no. of VLANs for instance. A ring running RSTP operating full 4k VLANs will probably take 600ms to converge if the root fails, according to some cisco guys. But this seems to be pretty high for me,...
