Changes between Version 4 and Version 5 of FeddMulti


Ignore:
Timestamp:
Sep 9, 2011 5:06:03 PM (8 years ago)
Author:
faber
Comment:

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  • FeddMulti

    v4 v5  
    1919[[Image(composition.png)]]
    2020 
    21 These fragments can either be described in [FeddAbout#ExperimentDescriptions the extended ns-2] language or in simple xml containing a [http://fedd.deterlab.net/wiki/FeddPluginArchitecture#TopologyDescriptionLanguage topdl] description.
     21These fragments can either be described in [FeddAbout#ExperimentDescriptions the extended ns-2] language or in simple xml containing a [http://fedd.deterlab.net/wiki/FeddPluginArchitecture#TopologyDescriptionLanguage topdl] description.  The three-connection node is encoded in ns-2 as:
     22
     23{{{
     24# simple DETER topology
     25# COMPOSITION: bot0:optional:Node:Single,Node
     26# COMPOSITION: bot0:optional:Node:Single,Node
     27# COMPOSITION: bot0:optional:Node:Single,Node
     28
     29set ns [new Simulator]
     30source tb_compat.tcl
     31
     32
     33set bot0 [$ns node]
     34tb-set-node-testbed $bot0 "deter"
     35
     36$ns rtproto Static
     37$ns run
     38
     39
     40}}}
     41
     42The comments containing the {{{COMPOSITION}}} keyword contain the constraints.  The first colon-separated field gives the node name to which the constraint applies, the second whether the field is optional or required, the third the type of connector, and the last a comma-separated list of acceptable types to connect.  Optional constraints need not be satisfied, though our satisfier tries to satsify as many as possible.
     43
     44The same component in XML is:
     45
     46{{{
     47<component>
     48 <constraints>
     49  <constraint>
     50   <name>bot0</name>
     51   <required>False</required>
     52   <provides>Node</provides>
     53   <accepts>Single</accepts>
     54   <accepts>Node</accepts>
     55  </constraint>
     56  <constraint>
     57   <name>bot0</name>
     58   <required>False</required>
     59   <provides>Node</provides>
     60   <accepts>Single</accepts>
     61   <accepts>Node</accepts>
     62  </constraint>
     63  <constraint>
     64   <name>bot0</name>
     65   <required>False</required>
     66   <provides>Node</provides>
     67   <accepts>Single</accepts>
     68   <accepts>Node</accepts>
     69  </constraint>
     70 </constraints>
     71 <experiment>
     72  <version>1.0</version>
     73  <elements>
     74   <computer>
     75    <name>bot0</name>
     76    <attribute>
     77     <attribute>type</attribute>
     78     <value>pc</value>
     79    </attribute>
     80    <attribute>
     81     <attribute>testbed</attribute>
     82     <value>deter</value>
     83    </attribute>
     84    <attribute>
     85     <attribute>failureaction</attribute>
     86     <value>fatal</value>
     87    </attribute>
     88   </computer>
     89  </elements>
     90 </experiment>
     91</component>
     92}}}