{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

CH5 - CH5 SNMPv1 Network Management Communication and...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
CH5: SNMPv1 Network Management: Communication and Functional Models Introduction : - Communication Model 1. Transfer syntax with bi-directional messages 2. Transfer structure (PDU) There are three components to this: Function in application layer Layer management between layers Layer operation within the layer pg. 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
CH5: SNMPv1 Network Management: Communication and Functional Models SNMP Communication Model SNMP Communication model define specifications in four aspects: 1- Architecture 2- Administrative Model  define data access policy, 3- SNMP protocol 4- SNMP MIB 1- SNMP Architecture Five messages, three from manager and two from agent SNMP Messages Get-Request Get-Next-Request Set-Request Get-Response Trap Generic trap 1. Cold Start 2. Warm Start 3. Link Down 4. Link Up 5. Authentication failure 6. EGP Neighbor Loss 7. Enterprise Specific Specific trap 1. for special measurements such as statistics Time stamp 1. Time since last initialization 2- Administrative Model pg. 2
Image of page 2
CH5: SNMPv1 Network Management: Communication and Functional Models Based on community profile and policy SNMP Entities: SNMP application entities 1. Reside in management stations and network elements 2. Manager and agent SNMP protocol entities 1. Communication processes (PDU handlers) 2. Peer processes that support application entities SNMP Community Community is a relationship between an Agent and Managers. Security in SNMPv1 is community-based Authentication scheme in manager and agent Agent sends “ Authentication Failure Trap ” to Manager. When authentication failed. Community: Pairing of two application entities Community name: String of octets  Used to validate the SNMP messages Two applications in the same community communicate with each other Application could have multiple community names Communication is not secured in SNMPv1 - no encryption pg. 3
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
CH5: SNMPv1 Network Management: Communication and Functional Models Community Profile MIB view An agent is programmed to view only a subset of managed objects of a network element Access mode
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern