COMPUTER NETWORKS

Chapter 5
Network Layer:
Control Plane
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Computer Network
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Top-Down Approac
Thanks and enjoy! JFK/KWR 8th edition
All material copyright 1996-2020
Jim Kurose, Keith Ross
J.F Kurose and K.W. Ross, All Rights Reserved Pearson, 2020

,Network layer control plane: our goals
understand principles  instantiation, implemen
behind network control in the Internet:
plane: • OSPF, BGP
• traditional routing algorithms • OpenFlow, ODL and ONO
• SDN controllers controllers
• network management, • Internet Control Message
configuration Protocol: ICMP
• SNMP, YANG/NETCONF

, Network layer: “control plane” roadmap
 introduction
 routing protocols
 link state
 distance vector
 intra-ISP routing: OSPF
 routing among ISPs: BGP
 network managemen
 SDN control plane configuration
 Internet Control Message • SNMP
Protocol • NETCONF/YANG

, Network-layer functions
 forwarding: move packets from router’s
input to appropriate router output
data plane
 routing: determine route taken by
packets from source to destination
control plane

Two approaches to structuring network control plane:
 per-router control (traditional)
 logically centralized control (software defined networking)