Punto 1 avanzado. Falta configuración, si alguien puede aportar se agradece porque...

diff --git a/Informe.lyx b/Informe.lyx
index a33a2107b018cf4f302a10604eb2c87053a98dea..a9c5c2cfe20496f5041a00a4f9f88de9c25e3894 100644 (file)
--- a/Informe.lyx
+++ b/Informe.lyx
@@ -3,11 +3,12 @@
 \textclass article
 \language spanish
 \inputencoding auto
 \textclass article
 \language spanish
 \inputencoding auto

-\fontscheme default
+\fontscheme palatino

 \graphics default
 \paperfontsize default
 \graphics default
 \paperfontsize default

-\papersize Default
-\paperpackage a4
+\spacing single 
+\papersize a4paper
+\paperpackage widemarginsa4

 \use_geometry 0
 \use_amsmath 0
 \use_natbib 0
 \use_geometry 0
 \use_amsmath 0
 \use_natbib 0


@@ -21,7 +22,7 @@
 \quotes_times 2
 \papercolumns 1
 \papersides 1
 \quotes_times 2
 \papercolumns 1
 \papersides 1

-\paperpagestyle default
+\paperpagestyle fancy

 
 \layout Title
 
 
 \layout Title
 


@@ -38,6 +39,123 @@ Markiewicz, Ricardo
 \layout Section
 
 Protocolo PPP
 \layout Section
 
 Protocolo PPP

+\layout Subsection
+
+Introducción
+\layout Standard
+
+El protocolo PPP es muy utilizado para establecer una comunicación entre
+ 2 redes (routers), ya sea entre LANs o entre una LAN y WAN u otras redes
+ más grandes.
+ Incluso es útil para comunicar un sólo host a una red distante (donde no
+ sería viable tender un cable o utilizar un medio inalámbrico).
+ Al poder ser montado sobre líneas telefónicas conmutadas, este protocolo
+ fue (y es) muy utilizado para proveer acceso a internet.
+\layout Subsection
+
+Protocolo
+\layout Standard
+
+
+\begin_inset Float figure
+wide false
+collapsed true
+
+\layout Caption
+
+
+\begin_inset LatexCommand \label{cap:Diagrama-de-estados-ppp}
+
+\end_inset 
+
+Diagrama de estados de una conexión PPP
+\layout Standard
+
+
+\begin_inset Graphics
+       filename ppp.eps
+       scale 65
+
+\end_inset 
+
+
+\end_inset 
+
+Lo primero que debe hacer el protocolo es establecer una conexión física
+ entre las dos puntas de la comunicación, para esto debe discar el número
+ si se utiliza sobre una línea telefónica conmutada, para establecer el
+ canal.
+ Una vez establecido el canal, empieza a actuar el LCP (Link Control Protocol)
+ que negocia, enviando frames PPP, los parámetros de la conexión.
+ Una vez acordados estos parámetros, puede realizarse una etapa de autenticación
+, para verificar la identidad de las puntas y así permitir o no que la comunicac
+ión se establezca.
+ Finalmente, si todo resultó bien, se envía una serie de paquetes NCP (Network
+ Control Protocol) para configurar la capa de red (como la dirección IP,
+ si se quisiera utilizar el protocolo TCP/IP en dicha capa).
+\layout Standard
+
+En este momento las dos puntas de la conexión están comunicadas y pueden
+ realizar todas sus tareas como si estuvieran conectadas en una LAN.
+\layout Standard
+
+Un vez finalizado, se procede prácticamente de forma inversa a como se estableci
+ó la conexión para liberarla.
+ Primero se libera la IP a través del procotocolo NCP, luego se libera el
+ enlace cerrando la conexión de la capa LCP y finalmente se cierra la conexión
+ física (se corta el módem), si fuera necesario.
+\layout Standard
+
+Se puede ver un diagrama de estados de este proceso en la figura 
+\begin_inset LatexCommand \vref{cap:Diagrama-de-estados-ppp}
+
+\end_inset 
+
+.
+\layout Subsection
+
+Configuración
+\layout Standard
+
+Entre las cosas que se pueden configurar (negociando a través del protocolo
+ LCP) está el tamaño de la cabecera del frame (ya que los campos 
+\emph on 
+address
+\emph default 
+ y 
+\emph on 
+control
+\emph default 
+ generalmente son fijos y pueden evitarse, el campo 
+\emph on 
+protocol
+\emph default 
+ puede ser de 1 o 2 bytes y el 
+\emph on 
+checksum
+\emph default 
+ de 2 o 4) y el máximo tamaño del 
+\emph on 
+payload
+\emph default 
+ del frame.
+ Estos parámetros se establecen con valores por omisión para poder ser negociado
+s luego con el protocolo LCP.
+\layout Standard
+
+El protocolo NCP es muy específico sobre qué protocolo de red se quiera
+ negociar, por lo que es muy difícil hablar en términos generales de él.
+ Para el caso más común, donde se negocia para TCP/IP, lo más importante
+ es la asignación de la IP.
+\layout Subsection
+
+Configuración de los routes sobre línea dedicada
+\layout Subsubsection
+
+Con modems
+\layout Subsubsection
+
+Sin modems (null modems)

 \layout Section
 
 Tablas de ruteo
 \layout Section
 
 Tablas de ruteo

diff --git a/ppp.dia b/ppp.dia
new file mode 100644 (file)
index 0000000..7393425
--- /dev/null
+++ b/ppp.dia
@@ -0,0 +1,808 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
+  <dia:diagramdata>
+    <dia:attribute name="background">
+      <dia:color val="#ffffff"/>
+    </dia:attribute>
+    <dia:attribute name="pagebreak">
+      <dia:color val="#000099"/>
+    </dia:attribute>
+    <dia:attribute name="paper">
+      <dia:composite type="paper">
+        <dia:attribute name="name">
+          <dia:string>#Letter#</dia:string>
+        </dia:attribute>
+        <dia:attribute name="tmargin">
+          <dia:real val="2.5399999618530273"/>
+        </dia:attribute>
+        <dia:attribute name="bmargin">
+          <dia:real val="2.5399999618530273"/>
+        </dia:attribute>
+        <dia:attribute name="lmargin">
+          <dia:real val="2.5399999618530273"/>
+        </dia:attribute>
+        <dia:attribute name="rmargin">
+          <dia:real val="2.5399999618530273"/>
+        </dia:attribute>
+        <dia:attribute name="is_portrait">
+          <dia:boolean val="false"/>
+        </dia:attribute>
+        <dia:attribute name="scaling">
+          <dia:real val="0.57150000333786011"/>
+        </dia:attribute>
+        <dia:attribute name="fitto">
+          <dia:boolean val="true"/>
+        </dia:attribute>
+        <dia:attribute name="fitwidth">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:attribute name="fitheight">
+          <dia:int val="1"/>
+        </dia:attribute>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="grid">
+      <dia:composite type="grid">
+        <dia:attribute name="width_x">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="width_y">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_x">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_y">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:composite type="color"/>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="color">
+      <dia:color val="#d8e5e5"/>
+    </dia:attribute>
+    <dia:attribute name="guides">
+      <dia:composite type="guides">
+        <dia:attribute name="hguides"/>
+        <dia:attribute name="vguides"/>
+      </dia:composite>
+    </dia:attribute>
+  </dia:diagramdata>
+  <dia:layer name="Fondo" visible="true">
+    <dia:object type="UML - State" version="0" id="O0">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-4,8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-4,8;1.55,9.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-4,8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5.5499999999999998"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Desconectado#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-1.225,9.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="UML - State" version="0" id="O1">
+      <dia:attribute name="obj_pos">
+        <dia:point val="10,3"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="10,3;14.65,4.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="10,3"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.6500000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Establecido#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="12.325,4.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="UML - State" version="0" id="O2">
+      <dia:attribute name="obj_pos">
+        <dia:point val="24,3"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="24,3;28.25,4.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="24,3"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.25"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Autenticar#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="26.125,4.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="UML - State" version="0" id="O3">
+      <dia:attribute name="obj_pos">
+        <dia:point val="32,8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="32,8;36,9.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="32,8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#En red#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="34,9.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="UML - State" version="0" id="O4">
+      <dia:attribute name="obj_pos">
+        <dia:point val="18,14"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="18,14;22.85,15.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="18,14"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.8499999999999996"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Comunicado#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="20.425,15.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="UML - State" version="0" id="O5">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,14"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="4,14;8.2,15.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="4,14"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.2000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.8"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Terminado#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="6.1,15.1"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
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+    <dia:object type="UML - Association" version="0" id="O6">
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+        <dia:point val="-1.225,8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-1.275,3.1;10.05,10.4"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="-1.225,8"/>
+        <dia:point val="-1.225,3.9"/>
+        <dia:point val="10,3.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Atiende#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O0" connection="1"/>
+        <dia:connection handle="1" to="O1" connection="3"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O7">
+      <dia:attribute name="obj_pos">
+        <dia:point val="14.65,3.9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="14.65,3.15;24.0707,5.5"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="14.65,3.9"/>
+        <dia:point val="14.65,3.9"/>
+        <dia:point val="24,3.9"/>
+        <dia:point val="24,3.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Parámetros aceptados#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="4"/>
+        <dia:connection handle="1" to="O2" connection="3"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O8">
+      <dia:attribute name="obj_pos">
+        <dia:point val="28.25,3.9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="28.2,3.15;34.8,9.6"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="28.25,3.9"/>
+        <dia:point val="34,3.9"/>
+        <dia:point val="34,8"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Identificado#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="4"/>
+        <dia:connection handle="1" to="O3" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O9">
+      <dia:attribute name="obj_pos">
+        <dia:point val="34,9.8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="22.8,9.75;34.35,16.5"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="34,9.8"/>
+        <dia:point val="34,14.9"/>
+        <dia:point val="22.85,14.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Configuración NCP#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O3" connection="6"/>
+        <dia:connection handle="1" to="O4" connection="4"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O10">
+      <dia:attribute name="obj_pos">
+        <dia:point val="18,14.9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="7.4,13.7;24.6,16.5"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="18,14.9"/>
+        <dia:point val="18,14.9"/>
+        <dia:point val="8.2,14.9"/>
+        <dia:point val="8.2,14.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>#Fin de comunicación#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O4" connection="3"/>
+        <dia:connection handle="1" to="O5" connection="4"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O11">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,14.9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-2.025,9.75;4.05,16.5"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="4,14.9"/>
+        <dia:point val="-1.225,14.9"/>
+        <dia:point val="-1.225,9.8"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Corta#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O5" connection="3"/>
+        <dia:connection handle="1" to="O0" connection="6"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O12">
+      <dia:attribute name="obj_pos">
+        <dia:point val="26.125,4.8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="5.3,4.75;26.475,15.6"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="26.125,4.8"/>
+        <dia:point val="26.125,11"/>
+        <dia:point val="6.1,11"/>
+        <dia:point val="6.1,14"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#No identificado#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="6"/>
+        <dia:connection handle="1" to="O5" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O13">
+      <dia:attribute name="obj_pos">
+        <dia:point val="12.325,4.8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="1.5,4.75;12.675,10.5"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="12.325,4.8"/>
+        <dia:point val="12.325,8.9"/>
+        <dia:point val="1.55,8.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Parámetros no aceptados#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="6"/>
+        <dia:connection handle="1" to="O0" connection="4"/>
+      </dia:connections>
+    </dia:object>
+  </dia:layer>
+</dia:diagram>