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IP Addresses and Fully Qualified Domain Names (FQDNs)

This page documents the setup of the IP addresses for the all the machines connected to the medusa switch. The physics department network (refered to as the external network) is the class C subnet 129.89.57.0. The medusa subnet (refered to as the internal network) are the two class C subnets 129.89.200.0 and 129.89.201.0.

The lower internal subnet is used only for machines connected to the medusa switch (the first 240 slave nodes).

The upper internal subnet is used for the remainder of the slave nodes and the machines that are connected to both the internal and external subnets.

The FQDN of a slave is medusa-slaveXXX.medusa.phys.uwm.edu where XXX is a number from 001 to 303. The slaves can also be refered to as slaveXXX.medusa.phys.uwm.edu or sXXX.medusa.phys.uwm.edu. This means that refering to them as slaveXXX or sXXX will also work.

Similarly the FQDN of a master is medusa-masterXXX.medusa.phys.uwm.edu where XXX is a number from 001 to 003. The masters can also be refered to as masterXXX.medusa.phys.uwm.edu or mXXX.medusa.phys.uwm.edu. This means that refering to them as masterXXX or mXXX will also work.

Internal IP Internal FQDN Alias External IP External FQDN Description
129.89.200.1         reserved for I&MT use
...         ...
129.89.200.10         reserved for I&MT use
129.89.200.11 medusa-slave001.medusa.phys.uwm.edu s001.medusa.phys.uwm.edu     Slave Node 1
... ... ...     ...
129.89.200.250 medusa-slave240.medusa.phys.uwm.edu s240.medusa.phys.uwm.edu     Slave Node 240
129.89.200.251         reserved for I&MT use
...         ...
129.89.200.254         reserved for I&MT use
129.89.201.1         reserved for I&MT use
...         ...
129.89.201.10         reserved for I&MT use
129.89.201.11 medusa-slave241.medusa.phys.uwm.edu s241.medusa.phys.uwm.edu     Slave Node 241
... ... ...     ...
129.89.201.73 medusa-slave303.medusa.phys.uwm.edu s303.medusa.phys.uwm.edu     Slave Node 303
129.89.201.74         Reserved for Additional Slave Nodes
...         ...
129.89.201.230         Reserved for Additional Slave Nodes
129.89.201.231 medusa-master001.medusa.phys.uwm.edu m001.medusa.phys.uwm.edu 129.89.57.103 medusa.phys.uwm.edu Master Node 1
129.89.201.232 medusa-master002.medusa.phys.uwm.edu m002.medusa.phys.uwm.edu 129.89.57.104 hydra.phys.uwm.edu Master Node 2
129.89.201.233 medusa-master003.medusa.phys.uwm.edu m003.medusa.phys.uwm.edu 129.89.57.117 contra.phys.uwm.edu Master Node 3 (Test Master)
129.89.201.233         Spare (reserved for additional master nodes)
...         ...
129.89.201.238         Spare (reserved for additional master nodes)
129.89.201.239 eventmon.medusa.phys.uwm.edu   129.89.57.49 eventmon.phys.uwm.edu LDAS mpiAPI, eventmonAPI
129.89.201.240 frame.medusa.phys.uwm.edu   129.89.57.47 frame.phys.uwm.edu LDAS frameAPI
129.89.201.241 uwmlsc.medusa.phys.uwm.edu   129.89.57.101 uwmlsc.phys.uwm.edu File Server
129.89.201.242 dataserver.medusa.phys.uwm.edu   129.89.57.102 dataserver.phys.uwm.edu Data Server
129.89.201.243 ladon.medusa.phys.uwm.edu   129.89.57.113 ladon.phys.uwm.edu Condor Box
129.89.201.244 storage1.medusa.phys.uwm.edu   129.89.57.22 storage1.phys.uwm.edu File Server
129.89.201.245 dataserver02.medusa.phys.uwm.edu   129.89.57.154 dataserver02.phys.uwm.edu Data Server
129.89.201.246 dmt.medusa.phys.uwm.edu   129.89.57.39 dmt.phys.uwm.edu DMT Server
129.89.201.247 watchtower.medusa.phys.uwm.edu   129.89.57.50 watchtower.phys.uwm.edu ganglia monitor
...         ...
129.89.201.248         Spare
129.89.201.249 medusa-switch1.medusa.phys.uwm.edu       Internal FastIron Switch
129.89.201.250         Spare (reserved for switch)
129.89.201.251         reserved for I&MT use
...         ...
129.89.201.254         reserved for I&MT use


$Id: ip_addresses.html,v 1.14 2004/02/19 07:10:48 jspauli Exp $

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