Link-State Packets
Figure A-4. Level-1 link-state packets (PDU Type 18).
Example A-7 Analyzer Capture: Level-1 LSP
ADDR HEX ASCII 0000: 01 80 c2 00 00 14 00 d0 58 f7 89 41 00 67 fe fe .....DXA.gww 0010: 03 83 1b 01 00 12 01 00 00 00 64 04 af 00 00 00 .
........d.-... 0020: 00 00 01 00 00 00 00 18 3b e6 cf 0b 01 04 03 49 ........;....I 0030: 00 01 81 01 cc 89 03 52 54 31 84 04 0b 01 01 01 ...
.............. 0050: a8 01 00 00 00 00 00 20 0b 01 01 01 16 0b 00 00 "...... ........ 0060: 00 00 00 01 01 00 00 0a 00 03 0a 00 80 80 80 00 ............. 0070: 00 00 00 00 01 .....
Example A-8 Decode of Example A-7 (Level-1 LSP Part 1)
DLC: ----- DLC Header ----- DLC: DLC: Frame 318 arrived at 18:50:53.1251; frame size is 117 (0075 hex) bytes. DLC: Destination = Multicast 0180C2000014 DLC: Source = Station 00D058F78941 DLC: 802.3 length = 103 DLC: LLC: ----- LLC Header ----- LLC: LLC: DSAP Address = FE, DSAP IG Bit = 00 (Individual Address) LLC: SSAP Address = FE, SSAP CR Bit = 00 (Command) LLC: Unnumbered frame: UI
Example A-9 Decode of Example A-7 (Level-1 LSP Part 2)
IS-IS: -----ISO Network Layer Header ----- IS-IS: IS-IS: Protocol ID = 83 (Intermediate System Routing Exchange Protocol) IS-IS: Header length = 27 IS-IS: Version / Protocol ID Extension = 1 IS-IS: ID Length = 0, Indicates 6 Octets IS-IS: PDU type = 18 (Link State, Level 1) IS-IS: Version = 1 IS-IS: Reserved = 0 IS-IS: Maximum Area Addesses = 0 IS-IS: Frame length is 100 byte(s) IS-IS: Remaining life is 1199 second(s) IS-IS: Link State Frame ID: IS-IS: Source ID = 000000000001 IS-IS: Pseudo-node = 00 (Not a pseudo-node) IS-IS: Link frame no. = 0 IS-IS: Frame Sequence = 6203 IS-IS: Checksum = E6CF IS-IS: Attributes = 0B IS-IS: 0... .... = Partition repair not supported IS-IS: .0.. .... = Not attached using error metric IS-IS: ..0. .... = Not attached using expense metric IS-IS: ...0 .... = Not attached using delay metric IS-IS: .... 1... = Attached using default metric IS-IS: .... .0.. = No LSP Database Overload IS-IS: .... ..11 = Level 2 intermediate system
Example A-10 Decode of Example A-7 (Level-1 LSP Part 3)
IS-IS: ----- ISO Network Layer Variable Fields ----- IS-IS: IS-IS: Variable field: IS-IS: Field Code = 1 (Manual Area Addresses) IS-IS: Field length = 4 IS-IS: Manual Area Address: IS-IS: Length = 3 IS-IS: Format = 49 (Local Binary) IS-IS: Address = 490001 IS-IS: Variable field: IS-IS: Field Code = 129 (Protocols Supported) IS-IS: Field length = 1 IS-IS: NLPID's for protocols within this IS: IS-IS: NLPID = CC (Internet IP) IS-IS: Variable field: IS-IS: Field Code = 137 (Dynamic Hostname) IS-IS: Field length = 3 IS-IS: Variable field: IS-IS: Field Code = 132 (IP Interface Address) IS-IS: Field length = 4 IS-IS: IP Interface Address: IS-IS: IP Address = [11.1.1.1]
Example A-11 Decode of Example A-7 (Level-1 LSP Part 3 Continued)
IS-IS: ----- ISO Network Layer Variable Fields ----- IS-IS: Variable field: IS-IS: Field Code = 135 (Extended IP Reachability) IS-IS: Field length = 26 IS-IS: Variable field: IS-IS: Field Code = 22 (Extended IS Reachability) IS-IS: Field length = 11 IS-IS: Variable field: IS-IS: Field Code = 3 (Neighboring End Systems) IS-IS: Field length = 10 IS-IS: Default metric = 0 IS-IS: Delay metric = Not supported IS-IS: Expense metric = Not supported IS-IS: Error metric = Not supported IS-IS: Neighbor ID = 000000000001
Figure A-5. Level-2 link-state packets (PDU Type 20)
Example A-12 Analyzer Capture: Level-2 LSP
ADDR HEX ASCII 0000: 01 80 c2 00 00 15 00 d0 58 f7 89 41 05 dc fe fe ....DX
Example A-13 Decode of Example A-12 (Level-2 LSP Part 1)
IS-IS: ----- ISO Network Layer Header ----- IS-IS: IS-IS: Protocol ID = 83 (Intermediate System Routing Exchange Protocol) IS-IS: Header length = 27 IS-IS: Version / Protocol ID Extension = 1 IS-IS: ID Length = 0, Indicates 6 Octets IS-IS: PDU type = 20 (Link State, Level 2) IS-IS: Version = 1 IS-IS: Reserved = 0 IS-IS: Maximum Area Addesses = 0 IS-IS: Frame length is 131 byte(s) IS-IS: Remaining life is 1199 second(s) IS-IS: Link State Frame ID: IS-IS: Source ID = 000000000001 IS-IS: Pseudo-node = 00 (Not a pseudo-node) IS-IS: Link frame no. = 0 IS-IS: Frame Sequence = 6188 IS-IS: Checksum = E72A IS-IS: Attributes = 03 IS-IS: 0... .... = Partition repair not supported IS-IS: .0.. .... = Not attached using error metric IS-IS: ..0. .... = Not attached using expense metric IS-IS: ...0 .... = Not attached using delay metric IS-IS: .... 0... = Not attached using default metric IS-IS: .... .0.. = No LSP Database Overload IS-IS: .... ..11 = Level 2 intermediate system
Example A-14 Decode of Example A-12 (Level-2 LSP Part 2)
IS-IS: ----- ISO Network Layer Variable Fields ----- IS-IS: Variable field: IS-IS: Field Code = 1 (Partition Area Addresses) IS-IS: Field length = 4 IS-IS: Partition Area Address: IS-IS: Length = 3 IS-IS: Format = 49 (Local Binary) IS-IS: Address = 490001 IS-IS: Variable field: IS-IS: Field Code = 129 (Protocols Supported) IS-IS: Field length = 1 IS-IS: NLPID'sfor protocols within this IS: IS-IS: NLPID = CC (Internet IP) IS-IS: Variable field: IS-IS: Field Code = 137 (Dynamic Hostname) IS-IS: Field length = 3 IS-IS: Variable field: IS-IS: Field Code = 132 (IP Interface Address) IS-IS: Field length = 4 IS-IS: IP Interface Address: IS-IS: IP Address = [11.1.1.1] IS-IS: Variable field: IS-IS: Field Code = 22 (Extended IS Reachability) IS-IS: Field length = 22 IS-IS: Variable field: IS-IS: Field Code = 135 (Extended IP Reachability) IS-IS: Field length = 58
IS-IS Network Design Solutions (Networking Technology)
ISBN: 1578702208
EAN: 2147483647
EAN: 2147483647
Year: 2005
Pages: 144
Pages: 144
Authors: Abe Martey
- Chapter I e-Search: A Conceptual Framework of Online Consumer Behavior
- Chapter VII Objective and Perceived Complexity and Their Impacts on Internet Communication
- Chapter VIII Personalization Systems and Their Deployment as Web Site Interface Design Decisions
- Chapter X Converting Browsers to Buyers: Key Considerations in Designing Business-to-Consumer Web Sites
- Chapter XII Web Design and E-Commerce