025- Networking Mnemonics

Mnemonics for Networking

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THE 7 Layers of ISO
Application
Presentation
Session
Transport
Network
Data Link
Physical


All People Seem To Need Data Processing


BGP Route selection process.


Weight (Highest is better)
LOCAL_PREF (Highest is better)
Originated Locally
AS_PATH (shortest)
ORIGIN Type (IGP is lower than EGP and EGP is lower than Incomplete)
MED (lowest is better)
Paths (External > Internal)
RID (Router ID - lowest is better)


We Love Oranges AS Oranges Mean Pure Refreshment


Syslog Message types


Emergency (0)
Alert (1)
Critical (2)
Error (3)
Warning (4)
Notifications (5)
Information (6)
Debug (7)


"Emergency Alert & Critical Error Warning Notifies Information Bug"




DHCP process


Discover
Offer
Request
Acknowledge


DORA

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