Posts Tagged ‘interface’
July 25th, 2008 | 
Author: Planning & Cabling Networks
Media Required to Make a LAN Connection:
LANs use gateways to connect o other networks.
They use hubs or switches to connect end devices.
Each port on a router connects to a different network.
Routers break up broadcast domains and collision domains.
Routers can have both LAN and WAN interfaces.
Intranetwork Devices:
Hub
Receives signals, regenerates and sends them over all ports.
Creates a logical bus (i.e. multi-access media, everybody is on the same wire). [topologies].
Shared bandwidth approach – reduced performance (only one device can talk at a time).
A single collision domain.
Less expensive than switches.
Bitmndframes cisco study guides
DTP Dynamic Trunking Protocol
Trunk negotiation is managed by the Dynamic Trunking Protocol (DTP), which is a Cisco proprietary Point-to-Point Protocol.
These various modes are configured using the switchport mode interface command
Switch trunk interfaces support different trunking modes.
- Access
- Dynamic desirable (default mode on Catalyst 2950 and 3550)
- Dynamic auto
- Trunk
- Non-negotiate
- dotq-tunnel (Not an option on the Catalyst 2950.)