Network Interfaces
- Created by: alfiec2002
- Created on: 19-01-24 09:32
View mindmap
- Network Interfaces
- Network Interface Cards
- The transceiver component responsible for physically connecting the node to the transmission medium is implemented in a network interface card/controller
- Each Ethernet network interface port has a unique hardware address known as the Media Access Control (MAC) address. This may also be referred to as the. A MAC address is also referred to as a local or physical address.
- MAC Format
- A MAC/EUI is a 48 but identifier. Theo format of the numbers differ depending on the system architecture
- Often displayed as 6 groups of 2 hexidecimal digits with colon or hyphen separators or no separators at all
- Frame Length and maximum transmission unit
- A standard ethernet frame has a max length of 1518 bytes
- - 6 byte destination and source MAC address fields
- 4 Byte error checking field
- 2 Byte EtherType field
- Packet Sniffers and Taps
- Protocol Analyser: Allows Inspection of traffic received by a host or passing over a network line
- A software sniffer installed on a host will simply interrogate the frames received by the network adapter by installing a special driver
- SPAN (Switched Port Analyser)
- This means the sensor is attached to specifically configured port
- Passive Test Access Point
- A box with ports for incoming and outgoing network cabling and an inductor that physically copies the signal
- Active TAP
- Powered device that performs signal regeneration which may be necessary in some situations
- Network Interface Cards
Comments
No comments have yet been made