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! 5: <TITLE>Bundle layer</TITLE>
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! 8:
! 9: <A HREF="mpd.html"><EM>Mpd 5.6 User Manual</EM></A>
! 10: <b>:</b> <A HREF="mpd17.html"><EM>Configuring Mpd</EM></A>
! 11: <b>:</b> <EM>Bundle layer</EM><BR>
! 12: <b>Previous:</b> <A HREF="mpd21.html"><EM>EAP</EM></A><BR>
! 13: <b>Next:</b> <A HREF="mpd23.html"><EM>Encryption (ECP) layer</EM></A>
! 14:
! 15:
! 16: <HR NOSHADE>
! 17: <H2><A NAME="22"></A>4.4. Bundle layer<A NAME="bundle"></A></H2>
! 18:
! 19: <p>This chapter describes commands that configure the bundle layer.
! 20: All of these commands (except <b><code>new</code></b>)
! 21: apply to the currently active bundle, i.e.,
! 22: the bundle shown at the command line prompt.</p>
! 23: <p>
! 24: <dl>
! 25:
! 26: <dt><b><code>set bundle period <em>seconds</em><br>
! 27: set bundle hiwat <em>percent</em><br>
! 28: set bundle lowat <em>percent</em><br>
! 29: set bundle min-con <em>seconds</em><br>
! 30: set bundle min-dis <em>seconds</em><br>
! 31: set bundle links <em>link1</em> [ <em>...</em> ]</code></b><dd><p>These commands are only meaningful when bandwidth management is enabled.
! 32: Mpd will attempt to bring up a new link from the list specified
! 33: or take down an existing link when the utilization goes above
! 34: <code><em>hiwat</em></code> or below <code><em>lowat</em></code> percent,
! 35: respectively. The utilization is sampled every <code><em>period</em></code>
! 36: divided by 6 points, and is averaged over the past <code><em>period</em></code> seconds.</p>
! 37: <p>Mpd will not attempt to disconnect a link unless previous one was
! 38: disconnected at least <code><em>min-dis</em></code> seconds before.
! 39: Similarly, mpd will not open a link unless previous was opened at least
! 40: <code><em>min-con</em></code> seconds before. These two parameters
! 41: help prevent oscillations, but cause slower response time.</p>
! 42:
! 43: <dt><b><code>set bundle fsm-timeout <em>seconds</em></code></b><dd><p>This sets the finite state machine (FSM) retry interval for all
! 44: FSM's on this bundle. This command should only be used in exceptional
! 45: situations, such as doing PPP over high-latency satellite links.
! 46: The default is 2 seconds. </p>
! 47:
! 48: <dt><b><code>set bundle accept <em>option ...</em><br>
! 49: set bundle deny <em>option ...</em><br>
! 50: set bundle enable <em>option ...</em><br>
! 51: set bundle disable <em>option ...</em><br>
! 52: set bundle yes <em>option ...</em><br>
! 53: set bundle no <em>option ...</em></code></b><dd><p>These commands configure various bundle options. Most options
! 54: are <em>bi-directional</em> in that they can be independently
! 55: enabled and disabled in each direction.</p>
! 56:
! 57: <p>The <code><b>enable</b></code> and <code><b>disable</b></code> commands determine
! 58: whether we want the corresponding option.
! 59: The <code><b>accept</b></code> and <code><b>deny</b></code> commands determine
! 60: whether we will allow the peer to request the corresponding option.</p>
! 61:
! 62: <p>The <b><code>yes</code></b> command is the same as
! 63: <code><b>enable</b></code> and <code><b>accept</b></code>.
! 64: The <b><code>no</code></b> command is the same as
! 65: <code><b>disable</b></code> and <code><b>deny</b></code>.</p>
! 66:
! 67: </dl>
! 68: </p>
! 69:
! 70: <p>The options available at the bundle layer are:</p>
! 71: <p>
! 72: <dl>
! 73:
! 74: <dt><b><code>bw-manage</code></b><dd><p>This command enables <em>bandwidth management</em>, in which mpd attempts
! 75: to dynamically adjust the number of connected links depending on the
! 76: traffic load.</p>
! 77: <p>The proper functioning of bandwidth management depends on the correct
! 78: latency and bandwidth information configured for each link; see the
! 79: <code><b>set link latency</b></code> and <code><b>set link bandwidth</b></code>
! 80: commands.</p>
! 81: <p>The default for this option is off -- mpd connects the links ``all or none.''</p>
! 82:
! 83: <dt><b><code>round-robin</code></b><dd><p>When multilink PPP is enabled and there are two or more links
! 84: connected, this option enables round robin packet scheduling
! 85: across the links. That is, instead of breaking each packet
! 86: into fragments and delivering the individual fragments over
! 87: all the links in the bundle, each packet is delivered whole
! 88: over single link. The link is chosen by rotating in round-robin
! 89: fashion over all the links in the bundle.</p>
! 90: <p>This option normally would result in higher latency and
! 91: possible delays due to TCP packets being received out of order;
! 92: however, it may help in certain situations of high packet
! 93: loss or broken peer equipment.</p>
! 94: <p>The default is disable.</p>
! 95:
! 96: <dt><b><code>ipcp</code></b><dd><p>Enable/Disable IPCP negotiation. For details see
! 97: <A HREF="mpd26.html#ipcp">ipcp</A>.</p>
! 98: <p>The default is enable.</p>
! 99:
! 100: <dt><b><code>ipv6cp</code></b><dd><p>Enable/Disable IPV6CP negotiation.</p>
! 101: <p>The default is disable.</p>
! 102:
! 103: <dt><b><code>compression</code></b><dd><p>Enable/Disable CCP (Compression Control Protocol) negotiation. For details see
! 104: <A HREF="mpd24.html#compression">compression</A>.</p>
! 105: <p>The default is disable.</p>
! 106:
! 107: <dt><b><code>encryption</code></b><dd><p>Enable/Disable ECP (Encryption Control Protocol) negotiation. For details see
! 108: <A HREF="mpd23.html#encryption">encryption</A>.</p>
! 109: <p>The default is disable.</p>
! 110:
! 111: <dt><b><code>crypt-reqd</code></b><dd><p>Require encryption.
! 112: When encryption support is compiled into mpd, this option
! 113: causes mpd to drop the link if encryption cannot be succesfully
! 114: negotiated in both directions. This means in effect, ``use encryption
! 115: or don't connect at all.''</p>
! 116: <p>The default is disable.</p>
! 117:
! 118: </dl>
! 119: </p>
! 120: <HR NOSHADE>
! 121: <A HREF="mpd.html"><EM>Mpd 5.6 User Manual</EM></A>
! 122: <b>:</b> <A HREF="mpd17.html"><EM>Configuring Mpd</EM></A>
! 123: <b>:</b> <EM>Bundle layer</EM><BR>
! 124: <b>Previous:</b> <A HREF="mpd21.html"><EM>EAP</EM></A><BR>
! 125: <b>Next:</b> <A HREF="mpd23.html"><EM>Encryption (ECP) layer</EM></A>
! 126:
! 127:
! 128:
! 129: </BODY>
! 130: </HTML>
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