Computer Networks Lecture 9: Transport Layer and Network Protocols

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Which component determines the route taken by packets from the source to the destination in a network?

Data plan

Control plane

Routing (correct)

Forwarding

In the context of router architecture, which component operates in the nanosecond timeframe?

Switching fabric

Forwarding data plane (hardware) (correct)

Routing control plane (software)

Remote controller

What is the primary function of the control plane in a router architecture?

Bit-level reception

Operate in millisecond timeframe

Determine route taken by packets

Interact with local control plane control agents (correct)

What represents the router's high-level view of generic architecture?

Routing processor Signup and view all the answers

Which approach involves individual routing algorithm components interacting in each and every router in the control plane?

Per-router control plane Signup and view all the answers

What is the specific function of the network layer protocols in every host and router?

Examine header fields in all IP datagrams Signup and view all the answers

Which component determines how a datagram arriving on a router input port is forwarded to the output port?

Control plane Signup and view all the answers

Which part of the router architecture operates at a high speed and is responsible for moving packets from the input to appropriate output?

Forwarding data plane (hardware) Signup and view all the answers

In router architecture, what is responsible for determining how datagrams are routed among routers along the end-to-end path from source host to destination host?

Network layer protocols Signup and view all the answers

What function does the input port memory serve in the context of Ethernet decentralized switching?

Destination-based forwarding Signup and view all the answers

In the context of Ethernet decentralized switching, which process involves using header field values to look up the output port using a forwarding table in the input port memory?

Generalized forwarding Signup and view all the answers

What does 'longest prefix matching' refer to in the context of looking for a forwarding table entry for a given destination address?

The process of matching the longest address prefix that matches the destination address Signup and view all the answers

What is the purpose of the switching fabric in Ethernet decentralized switching?

Transferring packets from input buffer to appropriate output buffer Signup and view all the answers

In Ethernet decentralized switching, what determines the rate at which packets can be transferred from inputs to outputs?

Switching rate Signup and view all the answers

Which process in Ethernet decentralized switching involves transferring packets from the input buffer to the appropriate output buffer?

Switching fabric transfer Signup and view all the answers

What is the purpose of using header field values to look up the output port using a forwarding table in the input port memory?

Implementing generalized forwarding Signup and view all the answers

What is meant by 'decentralized switching' in the context of Ethernet?

'Switch and forward' approach where decisions are made independently at each switch Signup and view all the answers

'Longest prefix matching' is used for what purpose when looking for a forwarding table entry for a given destination address?

Matching the longest address prefix that matches the destination address Signup and view all the answers

Computer Networks Lecture 9: Transport Layer and Network Protocols

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Questions and Answers

Which component determines the route taken by packets from the source to the destination in a network?

In the context of router architecture, which component operates in the nanosecond timeframe?

What is the primary function of the control plane in a router architecture?

What represents the router's high-level view of generic architecture?

Which approach involves individual routing algorithm components interacting in each and every router in the control plane?

What is the specific function of the network layer protocols in every host and router?

Which component determines how a datagram arriving on a router input port is forwarded to the output port?

Which part of the router architecture operates at a high speed and is responsible for moving packets from the input to appropriate output?

In router architecture, what is responsible for determining how datagrams are routed among routers along the end-to-end path from source host to destination host?

What function does the input port memory serve in the context of Ethernet decentralized switching?

In the context of Ethernet decentralized switching, which process involves using header field values to look up the output port using a forwarding table in the input port memory?

What does 'longest prefix matching' refer to in the context of looking for a forwarding table entry for a given destination address?

What is the purpose of the switching fabric in Ethernet decentralized switching?

In Ethernet decentralized switching, what determines the rate at which packets can be transferred from inputs to outputs?

Which process in Ethernet decentralized switching involves transferring packets from the input buffer to the appropriate output buffer?

What is the purpose of using header field values to look up the output port using a forwarding table in the input port memory?

What is meant by 'decentralized switching' in the context of Ethernet?

'Longest prefix matching' is used for what purpose when looking for a forwarding table entry for a given destination address?

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