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13 Cards in this Set
- Front
- Back
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BGP is a distance vector or link state protocol?
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path vector?
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BGP creates and maintains connections between peers, using ___ port ___
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TCP 179
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The connection is maintained by ....
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periodic keepalives.
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Any change in the network
results in a _____ |
triggered update.
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It is possible to manipulate the traffic flow by using _________
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attributes
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Four different message types are used in BGP:
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■ Open messages —Used to establish connections with peers.
■ Keepalives —Sent periodically between peers to maintain connections and verify paths ■ Update messages —Contain paths to destination networks and the path attributes ■ Notification—Used to inform the receiving router of errors that cause the connection to be closed. |
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BGP will propagate
1) the prefix and the prefix mask together 2) only prefix 3) only prefix mask |
1) the prefix and the prefix mask together
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What is the hop-by-hop paradigm?
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This paradigm is the capability to influence which router will be the next-hop router, potentially dictating it at every router and thus influencing the entire path of the traffic, hop by hop.
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Traffic can be directed on either the ____________ or both the
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source address
source and destination addresses |
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Policy-based routing does not affect the destination of the packet. It affects the path used to get to the destination.
True / False |
True!
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Policy-based routing does not allow traffic sent into another autonomous system to take a different path from the one that would have been chosen by that autonomous system.
True / False |
True
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It is possible to influence how traffic will be routed within that autonomous system.
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False
It is possible to influence only how traffic will get to a neighboring autonomous system, not how it will be routed within that autonomous system. |
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The Four Categories of Attributes are:
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Well-known (mandatory / discretionary)
Optional (Transitive / Non-transitive) |
