From Teknologisk videncenter
3 VLANs
3.1 Introducing VLANs
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3.1.2 Types of VLANs
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- Signaling traffic
- Voice traffic
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3.1.3 Switch Port Membership Modes
VLAN Membership Policy Server
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3.1.4 Controlling Broadcast Domains with VLANs
Broadcast domain with no VLAN segmentation
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Controlling broadcast domains with VLANs and Routers Fortæl lidt om hvordan en pakke bliver sendt på tværs af vlans. Med ARP og det hele.
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Controlling broadcast domains with L3 Switches
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3.2 VLAN Trunking
3.2.1 VLAN Trunks
Definition of a trunk: A trunk is a point-to-point link between two network devices that carries more than one VLAN.
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3 bits of user priority - Used by the 802.1p standard, which specifies how to provide expedited transmission of Layer 2 frames.
1 bit of Canonical Format Identifier (CFI) - Enables Token Ring frames to be carried across Ethernet links easily.
12 bits of VLAN ID (VID) - VLAN identification numbers; supports up to 4096 VLAN IDs.
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3.2.3 Trunking Modes
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- On Sender DTP frames og bliver i trunk mode
- Dynamic Auto Sender DTP frames, men foreslår ikke trunking
- Dynamic desirable Sender DTP frames, og vil gerne trunke
- Off Sender ikke DTP frames, bruges mod ikke-Cisco udstyr
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3.3.1 Configura VLANs and Trunks Overview
Configura VLANs and Trunks Overview
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