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<li class="toctree-l2 current"><a class="current reference internal" href="#">Session Traffic</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="#configuration">Configuration</a></li>
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<section id="session-traffic">
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<span id="id1"></span><h1>Session Traffic<a class="headerlink" href="#session-traffic" title="Permalink to this headline"></a></h1>
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<p>The BNG Blaster is able to generate bidirectional unicast
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session traffic for all addresses assigned to a session
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(IPv4, IPv6 and IPv6PD).</p>
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<img alt="Session Traffic" src="../_images/bbl_session_traffic.png" />
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<p>This is a powerful tool to quickly verify that forwarding
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is correctly setup and working.</p>
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<section id="configuration">
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<h2>Configuration<a class="headerlink" href="#configuration" title="Permalink to this headline"></a></h2>
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<p>The following example shows how to enable session-traffic.</p>
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<div class="highlight-json notranslate"><div class="highlight"><pre><span></span><span class="p">{</span><span class="w"></span>
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<span class="w"> </span><span class="nt">"session-traffic"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"></span>
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<span class="w"> </span><span class="nt">"ipv4-pps"</span><span class="p">:</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"></span>
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<span class="w"> </span><span class="nt">"ipv6-pps"</span><span class="p">:</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"></span>
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<span class="w"> </span><span class="nt">"ipv6pd-pps"</span><span class="p">:</span><span class="w"> </span><span class="mi">1</span><span class="w"></span>
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<span class="w"> </span><span class="p">}</span><span class="w"></span>
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<span class="p">}</span><span class="w"></span>
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</pre></div>
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</div>
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<div class="highlight-json notranslate"><div class="highlight"><pre><span></span><span class="p">{</span><span class="w"> </span><span class="nt">"isis"</span><span class="p">:</span><span class="w"> </span><span class="p">{}</span><span class="w"> </span><span class="p">}</span><span class="w"></span>
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</pre></div>
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</div>
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<table class="colwidths-given docutils align-default">
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<colgroup>
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<col style="width: 25%" />
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<col style="width: 50%" />
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<col style="width: 25%" />
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</colgroup>
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<thead>
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<tr class="row-odd"><th class="head"><p>Attribute</p></th>
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<th class="head"><p>Description</p></th>
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<th class="head"><p>Default</p></th>
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</tr>
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</thead>
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<tbody>
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<tr class="row-even"><td><p><cite>instance-id</cite></p></td>
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<td><p>ISIS instance identifier</p></td>
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<td></td>
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</tr>
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<tr class="row-odd"><td><p><cite>level</cite></p></td>
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<td><p>ISIS level</p></td>
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<td><p>3</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>overload</cite></p></td>
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<td><p>ISIS overload</p></td>
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<td><p>false</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>protocol-ipv4</cite></p></td>
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<td><p>Enable/disable IPv4</p></td>
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<td><p>true</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>protocol-ipv6</cite></p></td>
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<td><p>Enable/disable IPv6</p></td>
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<td><p>true</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>level1-auth-key</cite></p></td>
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<td><p>ISIS level 1 authentication key</p></td>
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<td></td>
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</tr>
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<tr class="row-even"><td><p><cite>level1-auth-type</cite></p></td>
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<td><p>ISIS level 1 authentication type (simple or md5)</p></td>
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<td><p>disabled</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>level2-auth-key</cite></p></td>
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<td><p>ISIS level 2 authentication key</p></td>
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<td></td>
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</tr>
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<tr class="row-even"><td><p><cite>level2-auth-type</cite></p></td>
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<td><p>ISIS level 2 authentication type (simple or md5)</p></td>
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<td><p>disabled</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>hello-interval</cite></p></td>
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<td><p>ISIS hello interval in seconds</p></td>
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<td><p>10</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>hello-padding</cite></p></td>
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<td><p>ISIS hello padding</p></td>
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<td><p>false</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>holding-time</cite></p></td>
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<td><p>ISIS holding time in seconds</p></td>
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<td><p>30</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>lsp-lifetime</cite></p></td>
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<td><p>ISIS LSP lifetime in seconds</p></td>
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<td><p>65535</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>lsp-refresh-interval</cite></p></td>
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<td><p>ISIS LSP refresh interval in seconds</p></td>
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<td><p>300</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>lsp-retry-interval</cite></p></td>
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<td><p>ISIS LSP retry interval in seconds</p></td>
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<td><p>5</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>lsp-tx-interval</cite></p></td>
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<td><p>ISIS LSP TX interval in ms (time between LSP send windows)</p></td>
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<td><p>10</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>lsp-tx-window-size</cite></p></td>
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<td><p>ISIS LSP TX window size (LSP send per window)</p></td>
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<td><p>1</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>csnp-interval</cite></p></td>
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<td><p>ISIS CSNP interval in seconds</p></td>
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<td><p>30</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>hostname</cite></p></td>
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<td><p>ISIS hostname</p></td>
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<td><p>bngblaster</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>router-id</cite></p></td>
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<td><p>ISIS router identifier</p></td>
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<td><p>10.10.10.10</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>system-id</cite></p></td>
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<td><p>ISIS system identifier</p></td>
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<td><p>0100.1001.0010</p></td>
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</tr>
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<tr class="row-odd"><td><p><cite>area</cite></p></td>
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<td><p>ISIS area(s)</p></td>
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<td><p>49.0001/24</p></td>
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</tr>
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<tr class="row-even"><td><p><cite>sr-base</cite></p></td>
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<td><p>ISIS SR base</p></td>
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<td></td>
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</tr>
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<tr class="row-odd"><td><p><cite>sr-range</cite></p></td>
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<td><p>ISIS SR range</p></td>
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<td></td>
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</tr>
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<tr class="row-even"><td><p><cite>sr-node-sid</cite></p></td>
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<td><p>ISIS SR node SID</p></td>
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<td></td>
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</tr>
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<tr class="row-odd"><td><p><cite>teardown-time</cite></p></td>
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<td><p>ISIS teardown time in seconds</p></td>
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<td><p>5</p></td>
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</tr>
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</tbody>
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</table>
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<p>This traffic is generated between the session and a network
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interface. In case of multiple network interfaces, the preferred
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network interfaces can be selected using the <code class="docutils literal notranslate"><span class="pre">network-interface</span></code>
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option in the corresponding access configuration.</p>
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</section>
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<section id="verification">
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<h2>Verification<a class="headerlink" href="#verification" title="Permalink to this headline"></a></h2>
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<p>The final report includes detailed information
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for session traffic.</p>
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<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>Session Traffic:
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Config:
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IPv4 PPS: 1
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IPv6 PPS: 1
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IPv6PD PPS: 1
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Verified Traffic Flows: 3000/3000
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Access IPv4: 500
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Access IPv6: 500
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Access IPv6PD: 500
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Network IPv4: 500
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Network IPv6: 500
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Network IPv6PD: 500
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First Sequence Number Received:
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Access IPv4 MIN: 1 ( 1.000s) MAX: 2 ( 2.000s)
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Access IPv6 MIN: 2 ( 2.000s) MAX: 2 ( 2.000s)
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Access IPv6PD MIN: 2 ( 2.000s) MAX: 2 ( 2.000s)
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Network IPv4 MIN: 1 ( 1.000s) MAX: 2 ( 2.000s)
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Network IPv6 MIN: 2 ( 2.000s) MAX: 2 ( 2.000s)
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Network IPv6PD MIN: 2 ( 2.000s) MAX: 2 ( 2.000s)
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</pre></div>
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</div>
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<p>The statistics starting with <code class="docutils literal notranslate"><span class="pre">Access</span> <span class="pre">...</span></code> correspond to traffic
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received on the access interface (network->access) where those
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starting with <code class="docutils literal notranslate"><span class="pre">Network</span> <span class="pre">...</span></code> correspond to traffic received on
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the network interface (access->network).</p>
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<p>The <code class="docutils literal notranslate"><span class="pre">First</span> <span class="pre">Sequence</span> <span class="pre">Number</span> <span class="pre">Received</span></code> is used to measure the forwarding
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convergence. The session traffic starts automatically as soo as the session
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is established using the rate configured. All traffic flows in the BNG Blaster
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start with the 64bit sequence number 1. Assuming the first sequence number
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received for given flow is 5 combined with a rate of 1 PPS would mean that
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it took between 4 and 5 seconds until forwarding is working.</p>
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</section>
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