Mnemonics for Networking

Mnemonics is derived from a Greek word “mnemonikós”, which means Mind, this learning technique is used for information intention.  Mnemonics allows us to easily transform unrelated information into a form which is easily understood by our brain than its original form. In simple words, it helps us to remember unrelated information easily.

Here is a technique to remember a list of unrelated items in order using Mnemonics:

1)  7 layers of OSI model:

Please Do Not Tell Sales People Anything

Physical – Datalink – Network – Transport – Session – Presentation – Application

2) 7 layers of OSI model in reverse order:

All People Seem To Need Data Processing

Application – Presentation – Session – Transport-Network- Datalink – Physical

3)DORA – DHCP process of Discover, Offer, Request, Acknowledge

4)Big Dogs Really Like Me – the order of K values in EIGRP: bandwidth, delay, reliability, load, MTU

5)Remembering the list of Cisco IOS log severity levels.

Every Alley Cat Eats Watery Noodles In Doors

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

6)To remember BGP Best Path Algorithm

We Love Oranges AS Oranges Mean Pure Refreshment.

Weight (Highest is Better)
LOCAL_PREF (Highest is Better)
Originated Locally
AS_PATH (Shortest Wins)
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)

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