According to dictionary.com, the word “mnemonics” a device such as a pattern of letters, ideas, or associations that assists in remembering something.
In the world of networking, for us to easily remember how technology works is by using mnemonics. Here are popular handy mnemonics that can help us.
- Syslog Message Types
”Every Alley Cat Eats Watery Noodles In Doors”
| Emergency (0) | Every |
| Alert (1) | Awesome |
| Critical (2) | Cisco |
| Error (3) | Engineer |
| Warning (4) | Will |
| Notifications (5) | Need |
| Information (6) | Ice-cream |
| Debug (7) | Daily |
2. DHCP Process
”DORA”
| Discover | D |
| Offer | O |
| Request | R |
| Acknowledge | A |
3. EIGRP K Values
”Big Latencies Don’t Really Matter”
| Bandwidth | Big |
| Load | Latencies |
| Delay | Don’t |
| Reliability | Really |
| MTU | Matter |
4. OSPF LSA Types
”Right Now Some Argue As Good Network Engineers Look Always Aside”
| Router LSA (Type 1) | Right |
| Network LSA (Type 2) | Now |
| Summary LSA (Type 3) | Some |
| ASBR Summary LSA (Type 4) | Argue |
| ASBR External LSA (Type 5) | As |
| Group Membership LSA (Type 6) | Good |
| NSSA LSA (Type 7) | Network |
| External Attributes (Type 8) | Engineers |
| Link Scope Opaque (Type 9) | Look |
| Area Scope Opaque (Type 10) | Always |
| AS Scope Opaque (Type 11) | Aside |
”Routing Networks Is Indeed A Great New Learning Experience”
| Router | Routing |
| Network | Networks |
| Inter-area Prefix | Is |
| Inter-area router | Indeed |
| AS external | A |
| Group membership LSA | Great |
| Type-7 NSSA | New |
| Link LSA | Learning |
| Intra-area Prefix | Initiative |
6. The OSI Model
From Application to Physical:
”All People Seem to Need Data Processing”
| Application | All |
| Presentation | People |
| Session | Seem |
| Transport | To |
| Network | Need |
| Data Link | Data |
| Physical | Processing |
From Physical to Application:
”Please Do Not Throw Sausage Pizza Away”
| Physical | Please |
| Data Link | Do |
| Network | Not |
| Transport | Throw |
| Session | Sausage |
| Presentation | Pizza |
| Application | Away |
7. BGP Best Path Algorithm
”We Love Oranges As Oranges Mean Pure Refreshment”
| Weight (Highest is better) | We |
| LOCAL_PREF (Highest is better) | Love |
| Originated Locally | Oranges |
| AS_PATH (shortest) | As |
| ORIGIN Type (IGP is lower than EGP and EGP is lower than Incomplete) | Oranges |
| MED (Lowest is better) | Mean |
| Paths (External > Internal) | Pure |
| RID (Router ID – Lowest is better) | Refreshment |
8. Bridge Selection Process in Switches
”Recent Protests Stopped Police”
| Root – Lowest Root Bridge ID (BID) | Recent |
| Path – Lowest Path cost to Root Bridge | Protests |
| Sender – Lowest Sender BID | Stopped |
| Port – Lowest Port ID | Police |
9. Protocol Independent Multicast PIM – SM v2 Message Types:
”High Roads Reaching Jungle Blocked All Cars”
| Hello | High |
| Register | Roads |
| Register-Stop | Reaching |
| Join/Prune | Jungle |
| Bootstrap | Blocked |
| Assert | All |
| Candidate RP Advertisement | Cars |
10. Protocol Data Unit (PDU)
”Some People Fear Birthdays”
| Segments (Transport) | Some |
| Packets (Network) | People |
| Frames (Data) | Fear |
| Bits (Physical) | Birthdays |
Be First to Comment