Ospf basics: Unterschied zwischen den Versionen
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Thomas (Diskussion | Beiträge) |
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| (5 dazwischenliegende Versionen von einem anderen Benutzer werden nicht angezeigt) | |||
| Zeile 3: | Zeile 3: | ||
=Structure= | =Structure= | ||
*encapsulates its data directly in IP | *encapsulates its data directly in IP | ||
| − | *protocol number 89 | + | *protocol number 89 |
*multicast addresses 224.0.0.5 | *multicast addresses 224.0.0.5 | ||
*variety authentication methods | *variety authentication methods | ||
| + | |||
=Router relationships= | =Router relationships= | ||
*router identifies with Hello packet | *router identifies with Hello packet | ||
| Zeile 25: | Zeile 26: | ||
*Link State Update | *Link State Update | ||
*Link State Acknowledgment | *Link State Acknowledgment | ||
| + | === OSPF Version 3 === | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | !colspan="32"| OSPF Header Version 3 | ||
| + | |- | ||
| + | !0 | ||
| + | !1 | ||
| + | !2 | ||
| + | !3 | ||
| + | !4 | ||
| + | !5 | ||
| + | !6 | ||
| + | !7 | ||
| + | !8 | ||
| + | !9 | ||
| + | !10 | ||
| + | !11 | ||
| + | !12 | ||
| + | !13 | ||
| + | !14 | ||
| + | !15 | ||
| + | !16 | ||
| + | !17 | ||
| + | !18 | ||
| + | !19 | ||
| + | !20 | ||
| + | !21 | ||
| + | !22 | ||
| + | !23 | ||
| + | !24 | ||
| + | !25 | ||
| + | !26 | ||
| + | !27 | ||
| + | !28 | ||
| + | !29 | ||
| + | !30 | ||
| + | !31 | ||
| + | |- | ||
| + | !colspan="8" style="background:#FFCC99"| Version<br /> | ||
| + | !colspan="8" style="background:#FFFF99"| Type<br /> | ||
| + | !colspan="16" style="background:#FFFF99"| Length<br /> | ||
| + | |- | ||
| + | !colspan="32" style="background:#FFFF99"| Router ID<br /> | ||
| + | |- | ||
| + | !colspan="32" style="background:#FFFF99"| Area ID<br /> | ||
| + | |- | ||
| + | !colspan="16" style="background:#FFFF99"| Checksum<br /> | ||
| + | !colspan="8" style="background:#FFFF99"| Instance ID<br /> | ||
| + | !colspan="8" style="background:#FFCC99"| Reserved<br /> | ||
| + | |- | ||
| + | !colspan="32" style="background:#00EEEE"| Data<br /> | ||
| + | |} | ||
Aktuelle Version vom 15. März 2024, 08:35 Uhr
Overview
- OSPF is an interior gateway protocol
Structure
- encapsulates its data directly in IP
- protocol number 89
- multicast addresses 224.0.0.5
- variety authentication methods
Router relationships
- router identifies with Hello packet
- link state protocol
- neighbor relationships
Adjacency state machine
- down
- attempt
- init
- 2-way
- exstart
- exchange
- loading
- full
Protocol messages
- Hello
- Database Description
- Link State Request
- Link State Update
- Link State Acknowledgment
OSPF Version 3
| OSPF Header Version 3 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Version |
Type |
Length | |||||||||||||||||||||||||||||
| Router ID | |||||||||||||||||||||||||||||||
| Area ID | |||||||||||||||||||||||||||||||
| Checksum |
Instance ID |
Reserved | |||||||||||||||||||||||||||||
| Data | |||||||||||||||||||||||||||||||