Briefly explain why many ISPs (and large ISP clients) use an improved technology called Multiprotocol Label Switching (MPLS) as a replacement for Frame Relay and ATM switching.
What will be an ideal response?
Today, TCP/IP, the predominant data technology, has a number of issues that neither Frame Relay nor ATM addresses. For example, ATM uses a very small frame, only 53 bytes, which adds quite a bit of overhead to 1500-byte Ethernet frames. To address this and other issues, many ISPs (and large ISP clients) use an improved technology called Multiprotocol Label Switching (MPLS) as a replacement for Frame Relay and ATM switching.
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Fill in the blank(s) with the appropriate word(s).