Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
Connection-oriented Networking
|
Requires up-front signaling
• Very little signaling during the connection, possibly none • Connection is usually torn down after the “call” is done |
|
Connectionless Networking
|
Requires packets
• Every packet moves through the network independent of the other ones |
|
Circuit switching
|
Sets up a fixed, exclusive path through the network
• Can be switched (per call) or permanent • Fixed timing (delay), no jitter |
|
Packet Switching
|
Circuits are always shared
• Performance is variable • Variable delay=jitter |
|
Switching
|
Usually refers to a process inside a network
node • Many circuits come in, many go out • The switch creates (on demand) a connection between one input and one output • Used in circuit switching in each node that is on the (pre-determined) path of the data |
|
Routing
|
A packet is received on one interface
• Router stores the packet in its entirety • Router consults a local table to decide where the packet needs to go • Router now sends the packet out on the selected port |
|
Connectionless Routing
|
Routing decisions are made based on an address
contained in the packet itself |
|
Connection Oriented Routing
|
During connection setup, a routing decision is associated
with a short label • Packets carry this label • Forwarding is done based on the label |
|
static routing
|
Forwarding decisions are built into the router by hand
and changed by hand |
|
Dynamic routing
|
Routers communicate with each other and build
decision (routing) tables based on what they learn from the other routers |