CCITT | International Standards body - now ITU-T |
CUG | Closed user group |
DTE | Customers terminal equipment |
DCE | Network end of link |
DNIC | Data Network Identification Code |
GFI | General Format Identifier |
HEADER | Part of Packet which contains control information |
ISO | International Standards Organization |
LCGN | Logical Channel Group Number |
LCN | Logical Channel Number |
NSAP | Network Service Access Point |
NUA | Network user address |
OSI | Open Systems Interconnection |
PACKET | Data sequence containing control info and in some cases user data |
PSE | Packet Switching Exchange |
Public Network | BT Data Network |
PVC | Permanent virtual circuit |
RPOA | Recognized Private Operating Agency |
SVC | Switched Virtual Circuit |
UKa | Equipment Suppliers for Public Network |
X25 | CCITT packet terminal interface recommendation |
X28 | CCITT start-stop terminal interface recommendation |
X75 | CCITT packet internetwork interface recommendation |
INDEX
Adaptive Routing in ARPANET
Adaptive routing strategies
Addressing
CALL ACCEPTED PACKET
CALL CONNECTED PACKET
Call reconnect on trunk failure
Call request delay
CALL REQUEST PACKET
Call Statistics
Call user data
CCITT
Centralised Adaptive Routing
CLEAR CONFIRMATION PACKET
CLEAR INDICATION PACKET
CLEAR PACKET
CLEAR REQUEST PACKET
CUG
DATA PACKET
DATA packet transfer delay
Data transfer - DATA Packet
RR, RNR, REJ
DCE
Disjoint Deterministic Routes
DNIC
DTE
Extended Formats
Facilities
FACILITIES VIA International Public Network
Flooding technique
Floyd's Algorithm
GFI
HEADER
Hierarchical Adaptive Routing
INCOMING CALL PACKET
INTERRUPT CONFIRMATION PACKET
INTERRUPT PACKET
ISO
LCGN
LCN
Logical Channel Group Number
Logical Channel Numbers and Logical Channel Group
Logical Channel Numbers - LCN
Logical Channels
Minimum delay Algorithms
More-data bit
Multiline
Non-ext format to non-ext format
NSAP
NUA
OSI
PACKET
Packet Level initialisation
Packet size negotiation
Procedures
PSE
Public Network
PVC
QOS parameters
Quality of service parameters
Quality-of-service (QOS) parameters
Random Routing
Redirection
REJ PACKET
Reliability in deterministic routing
RESET CONFIRMATION PACKET
RESET INDICATION PACKET
RESET REQUEST PACKET
RESTART CONFIRMATION PACKET
RESTART INDICATION PACKET
RESTART REQUEST PACKET
Reverse Charge
RNR PACKET
Routing algorithms
RPOA
RR PACKET
State table
SVC
UKa
Throughput of X25 links
Throughput
Timers
Transit Delay
Virtual call network
Window size negotiation
X200 - The network layer
X25
X28
X75
TABLE OF CONTENTS
1.3 - Relationship between packet layer and Link layer
1.4 - Link level failure
2 - Procedures
2.5 - Slide NET 32 - Example sending a data packet
3. 1 - Slide INTRO3 - map of Public Network
3.2 - Services provided by network layer
- - Net 9
- Packet types
4 - Packet headers
4.1 GFI
Call Packet
5.1 CALL REQUEST PACKET
5.1 INCOMING CALL PACKET
5.1 CALL ACCEPTED PACKET
5.1 CALL CONNECTED PACKET
5.2 - slide DATA PACKET
5.2 DATA PACKET
5.3 - slide rr packet
5.3.1 - RR PACKET
5.4 slide rnr packet
5.4.1 RNR PACKET
5.5.1 slide REJ
5.5 REJ PACKET
5.6 slide RESET
5.6 RESET REQUEST PACKET
5.6 RESET INDICATION PACKET
5.6 RESET CONFIRMATION PACKET
5.7 - slide interrupt
5.7 INTERRUPT PACKET
5.7 INTERRUPT CONFIRMATION PACKET
5.8 slide clear
5.8 CLEAR REQUEST PACKET
5.8 CLEAR INDICATION PACKET
5.8 CLEAR CONFIRMATION PACKET
5.9 slide NET 33 - restart
5.9 RESTART REQUEST PACKET
5.9 RESTART INDICATION PACKET
5.9 RESTART CONFIRMATION PACKET
5.9.1 Packet Level initialization
6 - Slide Net 17 ................ Addressing
6 - Addressing
6.2 Network-Layer Addressing
6.1 Slide Net 11 ....... Multiplexing and routing
7 - Logical Channels
7.2 Net 12 .... Multiplexing and routing - logical channels
8 - Virtual call network
8.2 Slide NET 25 ........ LCGN
8.3 Logical Channel Numbers - LCN
8.4 Logical Channel Group Number - LCGN
9 - Logical Channel Nos and Logical Channel Group numbers
10 - Routing algorithms
10.1 Floyd's Algorithm
10.3 Minimum delay Algorithms
10.4 Reliability in deterministic routing
10.5 flooding technique
10.6 Disjoint Deterministic Routes
10.7 Adaptive routing strategies
10.8 Centralized Adaptive Routing
10.9 Random Routing
10.10 Adaptive Routing in ARPANET
10.11 Hierarchical Adaptive Routing
10.12 slide net5 - making a call
10.13 - Call packet - Addresses
10.14 Net 13 ................ Successful call set-up
10.15 Net 14 ................ Unsuccessful call attempt
10.16 Slide NET 26 - subscr time and call setup time facil
11 - Facilities
11.1 slide NET 15 - facilities
11.2 Reverse Charge
11.3 Reverse charge
11.4 - Extended Formats
11.6 Packet size negotiation
11.7 Window size negotiation
11.9 - non-ext format to non-ext format
11.10 non-ext format to ext format
11.11 ext format to non-ext format
11.12 ext format to ext format
11.13 Fast select
11.14 - Slide NET 27 - Closed user group
11.15 - Closed user group
11.16 Slide NET 28 - Call redirection
11.17 Redirection
11.18 Slide NET 29 - Multiline
11.19 Multiline
11.20 Call Statistics
11.21 FACILITIES VIA International Public Network
12 - Quality-of-service (QOS) parameters
12.1 Throughput
12.2 Transit Delay
13 - Call user data
14 - Slide NET 30 - clear causes
14.1 - CLEAR PACKET
15 Slide NET 24 - More-data bit
15 - Data transfer - DATA Packet, RR, RNR, REJ
16 - SLIDE NET 16 Throughput of X25 links
17 Public Network quality of service parameters
17.1 Call request delay
17.2 DATA packet transfer delay
17.3 Established Call Clear
17.4 Spontaneous Resets
18 State table
19 - Timers
20 - Call reconnect on trunk failure
21 - Pract 1 - Decoding packet headers using Halcyon Tester
22 - X200 - The network layer
22.1 FUNCTIONS OF THE NETWORK LAYER
22.2 THE NETWORK LAYER-INTERNAL ARCHITECTURE
22.3 - Connectionless - MODE DATA TRANSFER
22.4 - NETWORK LAYER STANDARDS
22.5 Services provided to the Transport Layer
22.6 Queue model concepts
23 - 1984 per-call facility fields
24 Typical Faults
25 - Questions on network layer