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CS 672 1 Summer 2003 Quiz 3 Q1) Briefly describe IP control plane is composed of following protocols (list 2 to 3)? IP control plane provides information.

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Presentation on theme: "CS 672 1 Summer 2003 Quiz 3 Q1) Briefly describe IP control plane is composed of following protocols (list 2 to 3)? IP control plane provides information."— Presentation transcript:

1 CS Summer 2003 Quiz 3 Q1) Briefly describe IP control plane is composed of following protocols (list 2 to 3)? IP control plane provides information used for building RIB/FIB (True or False)? Q2) Briefly describe What is the main function of IP forwarding plane? What is the outcome of forwarding decision? Q3) Briefly describe Route cache hit ratio depends upon (list 2 to 3)? A lower hit ratio means cache entries need to be invalidated more frequently (True or False)? Q4) Briefly describe How does a FIB differ from a route cache (list 3 items)?

2 CS Summer 2003 Quiz 3 Q5) Briefly describe What is a forwarding equivalence class (FEC) ? Q6) Briefly describe List two common label stack operations performed by an LSR? In Downstream Unsolicited (DU) mode, the upstream LSR asks for a FEC to Label binding (True or False)? Q7) Briefly describe An hop-by-hop routed LSP traverses a path taken by destination-based (IGP) routing (True or False)? An explicitly routed LSP traverses a path that can be different that IGP path (True or False)? Q8) Briefly describe: What is the penultimate hop popping? What is the main benefit (use) of penultimate hop popping?

3 CS Summer 2003 Quiz 3 Q9) Briefly describe How is label carried on a label-controlled (LC) ATM interface ? How is label carried on an Ethernet interface? Q10) Briefly describe ATM-LSRs use global (system wide) label space (True or false)? Frame-mode LSRs use per interface label space (True or false)?


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