Flashcards
SCC 203 - BGP
Cards in this deck (6)
- 1How do we prevent SYN-Flood attacks?SYN-Cookies
hash src IP, src Port and secret and send as initial sequence number
If attacker, no response but data has been stored - 2What is an autonomous system?Number of networks under common control
- 3What is eBGP and iBGP?eBGP - obtain subnet reachability information from neighbouring ASes
iBGP - propagate reachability information to all AS-internal routers - 4What are the BGP basics?BGP Session - two BGP routers exchange BGP messages over semi-permanent TCP connections
- 5How does BGP route selection work?Selects routes based on
1. Local preference value attribute: policy decision
2. Shortest AS-PATH
3. Closest NEXT-HOP router; hot potato routing - 6What is hot potato routing?Choose local gateway that has least intra-domain cost
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- Description
- Flashcards on SCC 203 - BGP, created by Mac Howarth on 08/05/2017.
- Created by
- Mac Howarth · May 2017
- Updated
- May 8, 2017
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