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layout: coursepage
title: CMU 15-441/641, Fall 2021 --- Home
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<!-- COURSE OVERVIEW: NOT TEMPLATED -->
<div class="panel panel-default">
  <div class="panel-heading">
    <h3 class="panel-title">Overview</h3>
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  <div class="panel-body">
        <p>
        15-441/641 is an introductory course in computer networks. The emphasis
        will be on the basic performance and engineering tradeoffs in the
        design and implementation of computer networks. To make the issues
        more concrete, the class includes several multi-week projects
        requiring significant design and implementation.
        </p>

        <p>
        The goal is for students to learn not only what computer networks are
        and how they work today, but also why they are designed the way they
        are and how they are likely to evolve in the future. We will draw
        examples primarily from the Internet. Topics to be covered include:
        congestion/flow/error control, routing, addressing, naming,
        multi-casting, switching, internetworking, and network
        security. Evaluation is based on homework assignments, the projects,
        one midterm exam, and one final exam.
        </p>

  </div></div>


<div class="panel panel-default"> <div class="panel-heading"> <h3
  class="panel-title">Prerequisites</h3> </div> <div
  class="panel-body">
<p> "Introduction to Computer Systems" is a
  prerequisite for the course.  It is offered under the following
  course numbers: 15-213, 18-213, and 15-513.  Graduate students must
  get a B to satisfy the prerequisite.  Students who have taken the
  prerequisite course at CMU get priority when we move students from
  the waiting list.  </p>
<p> Once students who meet the prerequisites
  have been cleared, we will consider students with a strong systems
  background. These decisions will be made in the first or second week
  of the semester.  Do not send mail to the instructors about this
  (e.g., explaining your background) - it will not help your case.
  </p>
</div> </div>

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    <h3 class="panel-title">Course Staff</h3>
  </div>
  <div class="panel-body">
      <h4>Instructors</h4>
      <table class="table">
      <tr><th>Name</th><th>Email</th><th>Office</th><th>Office Hours</th></tr>

      <tr>
        <td><a href="http://www.cs.cmu.edu/~prs">Prof Peter Steenkiste</a></td>
        <td><span class="email">prs AT cs DOT cmu DOT edu</span></td>
        <td>GHC 9111</td>
        <td>Mondays, 11am-12pm & Wednesdays, 1-2pm</td>
      </tr>

      <tr>
        <td><a href="http://www.ccanel.com/">Christopher Canel</a></td>
        <td><span class="email">ccanel@cmu.edu</span></td>
        <td>GHC 9009</td>
        <td>Fridays, 3-4pm</td>
      </tr>
      </table>


      <h4>Teaching Assistants</h4>
      <table class="table">
      <tr><th>Name</th><th>Email</th><th>Office</th><th>Office Hours</th></tr>

      <tr>
        <td><a href="http://cs.cmu.edu/~shuoshuc">Shawn Chen</a></td>
        <td><span class="email">shuoshuc [shift-2] cs.cmu.edu</span></td>
        <td>GHC 7113</td>
        <td>Tuesdays, 10-11am @ GHC 7101 & Thursdays, 1:20-1:50pm @ GHC 7501</td>
      </tr>

      <tr>
        <td><a href="https://oliverli.dev/">Oliver Li</a></td>
        <td><span class="email">oliverli@cmu.edu</span></td>
        <td>GHC 9126</td>
        <td>Wednesdays, 3-5pm</td>
      </tr>
          
      <tr>
        <td>Nathan Walker</td>
        <td><span class="email">njwalker@andrew.cmu.edu</span></td>
        <td>GHC 5th Floor Commons, Table 2</td>
        <td>Mondays, 4:30-5:30pm</td>
      </tr>

      <tr>
        <td><a href="https://www.linkedin.com/in/tianeartzhu/">Art Zhu</a></td>
        <td><span class="email">tianez@andrew.cmu.edu</span></td>
        <td>GHC 5th Floor Commons, Table 1</td>
        <td>Tuesdays, 7-8pm</td>
      </tr>
      </table>


      <h4>Course Administrator</h4>
      <table class="table">
      <tr><th>Name</th><th>Email</th><th>Office</th></tr>

      <tr>
        <td>Mrs. Tracy Farbacher</td>
        <td><span class="email">tt1b@andrew.cmu.edu</span></td>
        <td></td>
      </tr>
      </table>
  </div>
</div>

<div class="panel panel-default">
  <div class="panel-heading">
    <h3 class="panel-title">Resources</h3>
  </div>
  <div class="panel-body">
        <ul>
        <li><b><a href="https://piazza.com/class/kq8ahgin2v126f">Piazza</a></b>: <br />
        If you have a question about a project handout or a technical
        issue, there is an excellent chance that other students have
        the same question.  Please read the posts on Piazza to see if there
        has been traffic, and consider posting your questions there.</li>
                
        <li><b><a href="https://www.gradescope.com/courses/276605">Gradescope</a></b>: <br />
        Submit all homeworks and projects, as well as associated regrade requests, through Gradescope.</li>

        <li><b>Staff mailing list:</b> <span class="email">staff-441 at cs dot cmu dot edu</span><br />
        If you have a question that you believe is particular to your circumstances
        and should not be posted in a public forum, then send mail to the staff list,
        which reaches the instructors and TAs.  If your question involves a
        confidential personal or academic-conduct issue, then you should probably
        contact one of the instructors in person or send mail to both.</li>
        </ul>
  </div>
</div>