Mnemonics for Networking
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
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