Changes between Version 17 and Version 18 of GpoLab/MyplcReferenceImplementation

Timestamp:

04/26/11 17:37:06 (13 years ago)

Author:

chaos@bbn.com

Comment:

--

GpoLab/MyplcReferenceImplementation

@@ -458 +458 @@
 
 === Variables ===
+
 || '''Variable''' || '''GPO Values''' || '''Description''' || '''Important Notes''' ||
 || <period> || 30 || The base value of the frequency at which node manager runs (in seconds) ||  ||
@@ -487 +488 @@
 }
 }}}
+
+== Install Static ARP Tables for Experimental Topology ==
+
+=== Description ===
+
+OpenFlow-based experimental topologies (see [wiki:OpenFlow/CampusTopology] for example topologies) often need hardcoded ARP entries on participating hosts.  If your MyPLC PlanetLab hosts participate in such a topology, you may need to add static ARP entries.
+
+=== Variables ===
+
+|| '''Variable''' || '''GPO Values''' || '''Description''' || '''Important Notes''' ||
+|| `<script>` || `/root/install_geni_core_arp_entries.sh` || The script which is used to install the ARP entries ||  ||
+|| `<arp_file>` || `/root/geni-core-arp.txt` || Config file containing hostnames, MAC addresses, and IPs of hosts || ||
+|| `<arp_url>` || `http://www.gpolab.bbn.com/arp/geni-core-arp.txt` || Source URL containing the most recent version of `<arp_file>` || ||
+
+=== Reference ===
+
+To configure static ARP installation on your system, and to ensure ARP entries are installed after each system boot, follow these steps.
+
+On each PlanetLab node in your MyPLC installation:
+
+ 1. Get the ARP installation shell script (e-mail `gpo-infra@geni.net` if you do not have this script), install it as `<script>`, and make sure it is executable:
+{{{
+sudo chown root <script>
+sudo chmod a+x <script>
+}}}
+
+ 2. Download the most recent version of the ARP entries config file into `/root`, where `<script>` expects it to be:
+{{{
+sudo wget -O <arp_file> <arp_url>
+}}}
+
+ 3. Run the script right away to seed the ARP entries.  This is just:
+{{{
+sudo <script>
+}}}
+ and you can verify that ARP entries have been added by looking at the arp table, which should now contain many entries:
+{{{
+arp -a
+}}}
+
+ 4. Configure the local system startup script to add ARP entries every time the system boots.  GPO infra has an `/etc/rc.local` script which can be used to configure ARP entries after nodemanager successfully runs for the first time (and brings up secondary interfaces configured by PLC).  Install this script as `/etc/rc.d/rc.local`, and ensure it is executable:
+{{{
+sudo chown root /etc/rc.d/rc.local
+sudo chmod a+x /etc/rc.d/rc.local
+}}}