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Terms in this set (282)
What are 2 reasons computer 1. Diversity of network equipment
networks are complex and
difficult to manage that led to the 2. Proprietary technology required for
development of SDN? equipment
,Why would equipment diversity Different software must be used for different
cause complexity when protocols (7)
managing a network?
Why do proprietary technologies Some equipment (router, switch, etc.) run on
cause complexity when closed/proprietary software
managing networks?
Configuration interfaces vary as a result.
This causes issues for managing devices
centrally. (7)
What is the simple idea of SDN Separate tasks into control plane and data
that helps make networks more plane. (7)
manageable?
,What are the 3 phases of history 1. Active networks
of SDN?
2. control plane and data plane separation
3. OpenFlow API and network operating
systems (7)
What led to the growth of active 1. the tediousness of standardizing new
networks, and what is their goal? protocols
2. goal is to open up network control with an
API that exposes resources and supports
customization of functionalities for subsets
of packets passing through network nodes
(7)
, Why do active networks conflict They require customization at network nodes
with idea of E2E? (not simplicity at network core)
(7)
What were the two types of 1. Capsule model
programming models in active - carries in band data packets
networking? How are thy - most used in relation to active networking
different? - code distribution ACROSS networks
- data plane
2. Programmable router/switch model
- out of band mechanisms
- decision-making a job for the NETWORK
OPERATOR
- Difference is where the code to execute at
the nodes was carried (7)