Ospf basics: Unterschied zwischen den Versionen
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!colspan="8" style="background:#FFCC99"| Version<br />(Version) | !colspan="8" style="background:#FFCC99"| Version<br />(Version) | ||
!colspan="8" style="background:#FFFF99"| Type<br />(Typ) | !colspan="8" style="background:#FFFF99"| Type<br />(Typ) | ||
| − | !colspan="16" style="background:#FFFF99"| Length<br /> | + | !colspan="16" style="background:#FFFF99"| Length<br /> |
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| − | !colspan="32" style="background:#FFFF99"| Router ID<br />( | + | !colspan="32" style="background:#FFFF99"| Router ID<br />( |
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!colspan="32" style="background:#FFFF99"| Area ID<br />(Bereichsbezeichner) | !colspan="32" style="background:#FFFF99"| Area ID<br />(Bereichsbezeichner) | ||
Version vom 14. Dezember 2017, 20:09 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 (Version) |
Type (Typ) |
Length | |||||||||||||||||||||||||||||
| Router ID ( | |||||||||||||||||||||||||||||||
| Area ID (Bereichsbezeichner) | |||||||||||||||||||||||||||||||
| Checksum (Prüfsumme) |
Instance ID (Instanzbezeichner) |
Reserved (reserviert) | |||||||||||||||||||||||||||||
| Data (Daten) | |||||||||||||||||||||||||||||||
- Die Version 3 des OSPF ist für IPv6 vorgesehen und in RFC 5340 definiert.
- Die Instance ID (Instanzbezeichner) beträgt 8 Bit.
- Reserved (reserviert) beträgt 8 Bit