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Trace 3.9b. Browsing the system subtree (ASN.1 and Hexadecimal decode)

  Sniffer Network Analyzer data 10-Nov at 10:42:04 file ASAN_SYS.ENC Pg 1
  ------------------------------ Frame 110 ------------------------------
  SNMP: 1.1 SEQUENCE [of], Length=235
  SNMP: 2.1 INTEGER, Length=1, Value = “0”
  SNMP: 2.2 OCTET STRING, Length=7, Value =  “boulder”
  SNMP: 2.3 Context-Specific Constructed [2], Length=220
  SNMP: 3.1 INTEGER, Length=1, Value = “0”
  SNMP: 3.2 INTEGER, Length=1, Value = “0”
  SNMP: 3.3 INTEGER, Length=1, Value = “0”
  SNMP: 3.4 SEQUENCE [of], Length=208
  SNMP: 4.1 SEQUENCE [of], Length=16
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value =  “{1.3.6.1.2.1.1.3.0}”
  SNMP: 5.2 Application Primitive [3], Length=4, Data = “<0FB68C92>”
  SNMP: 4.2 SEQUENCE [of], Length=74
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value = “{1.3.6.1.2.1.1.1.0}”
  SNMP: 5.2 OCTET STRING, Length=62, Value = “Portable I80386 C Gateway
                      XXX.XXX.XXXX.XXX ...”
  SNMP: 4.3 SEQUENCE [of], Length=21
  SNMP: 5.1 OBJECT IDENTIFIER,  Length=8,Value=”{1.3.6.1.2.1.1.2.0}”
  SNMP: 5.2 OBJECT IDENTIFIER, Length=9,Value=”{1.3.6.1.4.1.1.1.1.41}”
  SNMP: 4.4 SEQUENCE [of], Length=16
  SNMP: 5.1 OBJECT IDENTIFIER,  Length=8,Value=”{1.3.6.1.2.1.1.3.0}”
  SNMP: 5.2 Application Primitive [3], Length=4, Data = “<0FB68C92>”
  SNMP: 4.5 SEQUENCE [of], Length=12
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value=”{1.3.6.1.2.1.1.4.0}”
  SNMP: 5.2 OCTET STRING, Length=0, Value = “”
  SNMP: 4.6 SEQUENCE [of], Length=28
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value=”{1.3.6.1.2.1.1.5.0}”
  SNMP: 5.2 OCTET STRING, Length=16, Value=”XXX.XXX.XXXX.XXX”
  SNMP: 4.7 SEQUENCE [of], Length=12
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value=”{1.3.6.1.2.1.1.6.0}”
  SNMP: 5.2 OCTET STRING, Length=0, Value = “”
  SNMP: 4.8 SEQUENCE [of], Length=13
  SNMP: 5.1 OBJECT IDENTIFIER, Length=8, Value = “{1.3.6.1.2.1.1.7.0}”
  SNMP: 5.2 INTEGER, Length=1, Value = “72”
  SNMP:
  ADDR HEX                                          ASCII
  0000 08 00 20 09 00 C8 AA 00 04 00 44 86 08 00 45 00 .. .......D...E.
  0010 01 0A 81 20 00 00 3B 11 73 77 84 A3 01 01 84 A3 ... ..;.sw......
  0020 80 04 00 A1 0D 20 00 F6 C6 62 30 81 EB 02 01 00 ..... ...b0.....
  0030 04 07 XX XX XX XX XX XX XX A2 81 DC 02 01 00 02 ..XXXXXXX .......
  0040 01 00 02 01 00 30 81 D0 30 10 06 08 2B 06 01 02 .....0..0...+...
  0050 01 01 03 00 43 04 0F B6 8C 92 30 4A 06 08 2B 06 ....C.....0J..+.
  0060 01 02 01 01 01 00 04 3E 50 6F 72 74 61 62 6C 65 .......>Portable
  0070 20 49 38 30 33 38 36 20 43 20 47 61 74 65 77 61 I80386 C Gatewa
  0080 79 20 XX XX XX XX XX XX XX XX XX XX XX XX XX XX y XXX.XXX.XXXX.X
  0090 XX XX 20 53 2F 4E 20 33 33 33 20 56 31 32 2E 30 XX S/N 333 V12.0
  00A0 20 20 5B 20 20 5D 30 15 06 08 2B 06 01 02 01 01 [ ]0...+.....
  00B0 02 00 06 09 2B 06 01 04 01 01 01 01 29 30 10 06 ....+.......)0..
  00C0 08 2B 06 01 02 01 01 03 00 43 04 0F B6 8C 92 30 .+.......C.....0
  00D0 0C 06 08 2B 06 01 02 01 01 04 00 04 00 30 1C 06 ...+.........0..
  00E0 08 2B 06 01 02 01 01 05 00 04 10 XX XX XX XX XX .+.........XXX.X
  00F0 XX XX XX XX XX XX XX XX XX XX XX 30 0C 06 08 2B XX.XXXX.XXX0...+
  0100 06 01 02 01 01 06 00 04 00 30 0D 06 08 2B 06 01 .........0...+..
  0110 02 01 01 07 00 02 01 48                         .......H

We have now tackled two of the three technical subjects in our tour of the Internet network management framework: the SMI and the MIBs. The next chapter studies SNMP, which provides the communication mechanism for network management functions.

3.10 References

[3-1] McCloghrie, K., and M.T. Rose. “Management Information Base for Network Management of TCP/IP-based Internets.” RFC 1156, May 1990.
[3-2] McCloghrie, K., and M.T. Rose. “Management Information Base for Network Management of TCP/IP-based Internets: MIB-II.” RFC 1213, March 1991.
[3-3] Rose, M., and K. McCloghrie. “Concise MIB Definitions.” RFC 1212, March 1991.
[3-4] Perkins, Dave, and Evan McGinnis. Understanding SNMP MIBs. New York, NY: Prentice-Hall PTR, 1997.
[3-5] VandenBerg, Chris. “MIB II Extends SNMP Interoperability.” Data Communications (October 1990): 119–124.
[3-6] LaBarre, L. “OSI Internet Management: Management Information Base.” RFC 1214, April 1991.
[3-7] Reynolds, J., and J. Postel. “Assigned Numbers.” RFC 1700, October 1994.
[3-8] Baker, F., and J. Watt, editors. “Definitions of Managed Objects for the DS1 and E1 Interface Types.” RFC 1406, January 1993.
[3-9] Cox, T., and Tesink, K., editors. “Definitions of Managed Objects for the DS3/E3 Interface Type.” RFC 1407, January 1993.
[3-10] Brown, T., and K. Tesink, editors. “Definitions of Managed Objects for the SONET/SDH Interface Type.” RFC 1595, March 1994.
[3-11] Brown, C., et al. “Management Information Base for Frame Relay DTEs.” RFC 1315, April 1992.
[3-12] Brown, T., editor. “Definitions of Managed Objects for Frame Relay Service.” RFC 1604, March 1994.
[3-13] Cox, T., and K. Tesink, editors. “Definitions of Managed Objects for SMDS Interfaces Using SMIv2.” RFC 1694, August 1994.
[3-14] Ahmed, M., and K. Tesink, editors. “Definitions of Managed Objects for ATM Management Version 8.0 using SMIv2.” RFC 1695, August 1994.
[3-15] Waldbusser, S. “Remote Network Monitoring Management Information Base.” RFC 1757, February 1995.
[3-16] Burdick, Matthew J. “Continuous Monitoring of Remote Networks: The RMON MIB,” Hewlett-Packard Journal (April 1993): 82-89.
[3-17] de Bruyn, Mark. “RMON MIB Tutorial.” 3TECH, the 3Com Technical Journal (April 1994): 22-25.
[3-18] Tolly, Kevin, and David Newman. “A for RMON.” Data Communications (December 1994): 52-68.
[3-19] Boardman, Bruce, and Peter Morrissey. “Probing the Depths of RMON (Amen for Extensions).” Network Computing (February 1, 1995).
[3-20] Thomas, Richard. “Interoperable RMON? Plug and Pray.” Data Communications (May 1995): 79-88.
[3-21] Steinke, Steve. “A Diamond in the Rough.” LAN Magazine (October 1995): 81-86.
[3-22] Rosenbach, Bibi, and Jeremy Soref. “RMON—The Enterprise Management Standard.” Data Communications (March 21, 1996): 69-72.
[3-23] Boardman, Bruce. “RMON—Unfinished Business. Get the Picture?” Network Computing (May 16, 1996): 66-83.
[3-24] Waldbusser, S. “Token Ring Extensions to the Remote Network Monitoring MIB.” RFC 1513, September 1993.
[3-25] Tolly, Kevin. “RMON: A Ray of Hope for Token Ring Managers.” Data Communications (October 1995): 72-80.
[3-26] Waldbusser, S. “Remote Network Monitoring Management Information Base Version 2 using SMIv2.” RFC 2021, January 1997.
[3-27] Stallings, William. “RMON2—The Next Generation of Remote Network Monitoring.” ConneXions, the Interoperability Report (May 1996): 34-40.


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