https://wiki.fogproject.org/wiki/api.php?action=feedcontributions&feedformat=atom&user=CamFOG Project - User contributions [en]2026-04-30T06:56:51ZUser contributionsMediaWiki 1.30.0https://wiki.fogproject.org/wiki/index.php?title=Multicast&diff=3485Multicast2011-07-05T14:47:41Z<p>Cam: added a link</p>
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<div><pre><br />
To test Multicasting<br />
<br />
Environment:<br />
FOG server<br />
two or more identical PC<br />
Ethernet hub or FastEthernet switch in same VLAN.<br />
<br />
to view Multicat status on server use tty2 or /opt/fog/log/muliticat.log<br />
<br />
overall image time will be slower then unicast on same hardware and same image because unicast is gunzip(unzip) at client level, multicast in gunzip at server level. <br />
<br />
If error persistent in test environment post log in forum.<br />
</pre><br />
<br />
More Info on Multicasting <br />
[[Multicasting]]</div>Camhttps://wiki.fogproject.org/wiki/index.php?title=HPMulticast&diff=3444HPMulticast2011-06-22T10:21:04Z<p>Cam: collected more data on what happens if IGMP is disabled, causes packet loss to anything that is plugged into the switch during multicast</p>
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<div>==HP Procure Multicast Configuration==<br />
<br />
=== Overview ===<br />
<br />
====Components Used====<br />
#Fog server running version 0.30<br />
#HP ProCurve 5406zl (core layer 3 router)<br />
#HP ProCurve 4108 (building layer 2 Switch)<br />
#HP ProCurve 2520 (layer 2 Switch on my desk)<br />
#2 PCs<br />
<br />
====Setup====<br />
#3 Subnets (and VLANs) one for servers and two for students/staff<br />
#FOG server on vlan 1 with IP address 192.168.19.77 - connected to the 5406zl<br />
#2 PCs on vlan 4 with IP address lease from DHCP (192.168.18.x) NOT from FOG server - connected to the 2520<br />
<br />
====Procuve Router Commands - Layer 3====<br />
commands here are modified extracts of http://cdn.procurve.com/training/Manuals/3500-5400-6200-6600-8200-MRG-Mar10-K_14_52.pdf page 3-20<br />
<br />
connect via telnet to Router (5406zl)<br />
ProCurve# config<br />
ProCurve(config)# ip routing<br />
ProCurve(config)# ip multicast-routing<br />
ProCurve(config)# router pim<br />
ProCurve(config)# vlan 1 //the 19 subnet<br />
ProCurve(vlan-1)# ip igmp<br />
ProCurve(vlan-1)# ip pim-dense ip-addr 192.168.19.21 //This is the switches IP in VLAN 1, you may only need this if the switch is multihomed in that subnet<br />
ProCurve(vlan-1-pim-dense)# vlan 4<br />
ProCurve(vlan-4)# ip igmp<br />
ProCurve(vlan-4)# ip pim-dense <br />
ProCurve(vlan-4-pim-dense)# vlan 5<br />
ProCurve(vlan-5)# ip igmp<br />
ProCurve(vlan-5)# ip pim-dense<br />
ProCurve(vlan-5-pim-dense)# write mem<br />
ProCurve(vlan-5-pim-dense)# exit<br />
ProCurve(vlan-5)# exit<br />
<br />
switch may need to be rebooted if router PIM was not already enabled<br />
consult manual for exact details on your switch<br />
===Procurve Switch Commands - Layer 2===<br />
<br />
Commands for the layer 2 switches to enable IGMP routing<br />
While applying these settings to sub-switches is not required, not enabling IMGP on the switch<br />
may create excessive traffic to ALL nodes of the switch during a multicast session.<br />
<br />
By enabling IGMP allows the switch to send multicast packets to only the computers who have joined the session.<br />
<br />
ProCurve# config<br />
ProCurve(config)# ip routing<br />
ProCurve(config)# ip multicast-routing<br />
ProCurve(config)# vlan 1 <br />
ProCurve(vlan-1)# ip igmp<br />
ProCurve(vlan-1)# vlan 4 <br />
ProCurve(vlan-4)# ip igmp<br />
ProCurve(vlan-4)# vlan 5 <br />
ProCurve(vlan-5)# ip igmp<br />
ProCurve(vlan-5)# write mem<br />
ProCurve(vlan-5)# exit</div>Cam