SD-WAN Flashcards by Nugget Box

Q

In SD-WAN configuration, what is the implicit rule?

A

Created by default
Always present at the bottom of the rule list
If no user-defined routes are matched, the implicit rule is used
By default, load balanced the traffic across all available members

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Q

In an SD-WAN environment, what are underlays?

A

Physical links provided by ISP
Restricted routing
No added security
Cable, DSL, fiber, MPLS, 4G, LTE

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Q

In an SD-WAN environment, what are overlays?

A

Virtual links built on top of underlay links
Flexible routing
Enhanced security
IPsec, GRE, IP-in-IP

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Q

What does performance SLAs monitor for each member?

A

State (alive/dead)
Packet loss
Latency
Jitter

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Q

When load balancing is activated in SD-WAN configuration, how is the traffic load balanced?

A

Round-robin algorithm by default
Can set other algorithms through CLI commands

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Q

How do SD-WAN rules behave?

A

Like policy routes

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Q

Why might a SD-WAN rule be skipped?

A

Best route to destination isn’t an SD-WAN member
None of the members have a valid route to the destination

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Q

How can you view the policy route table?

A

In CLI
diagnose firewall proute list

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Q

Which routes apply first? SD-WAN or regular policy routes?

A

Regular policy routes

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