Changes between Version 68 and Version 69 of GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup

Timestamp:

05/15/16 16:44:07 (8 years ago)

Author:

lnevers@bbn.com

Comment:

--

GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup

@@ -91 +91 @@
 == b. Manually Configure OSPF for XORP ==
 
-In this tutorial we configure each VM as a virtual router running the `OSPF` routing protocol.  Examples of `XORP` configurations can be found at [http://www.xorp.org/getting_started.html#configuring XORPExamples]. For each VM running as a software router, the `OSPF` configuration file will be named `ospfd.conf` and stored in `/etc/xorp/`. 
-
-We first configure `OSPF` on `router-1`. The sample configuration file for `router-1` can be downloaded from [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r1-ospf.conf here], where you may find the interface information in the sample file may be different from `router-1`'s interfaces. 
-It's highly recommended that make sure you double check whether you have the interface information correct in the `ospfd.conf` on `router-1` before you start `xorp`.   
-
-To do that create the `/etc/xorp` directory:
+In this tutorial we configure each VM as a virtual router running the `OSPF` routing protocol.  Examples of `XORP` configurations can be found at [http://www.xorp.org/getting_started.html#configuring XORPExamples]. For each VM running as a software router, the `OSPF` configuration file will be named `ospfd.conf` and is stored in `/etc/xorp/`. 
+
+First, configure `OSPF` on `router-1`. A sample configuration file  can be downloaded for [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r1-ospf.conf router-1]. Create the `/etc/xorp` directory:
 {{{
 sudo mkdir /etc/xorp
 }}}
 
-Then create and edit the file using your favorite editor:
+Then create the `router-1` file ospf configuration file, which you may cut-n-paste or secure copy to its destination:
 {{{
 sudo vi /etc/xorp/ospfd.conf
 }}}  
 
-
-There are several key information we observed by manually creating the `OSPF` configuration file for `router-1`. 
-
- * Interface Information
+You may find the interface information in the sample files may be different from the routers interfaces.  It's highly recommended that you check whether you have the interface information properly mapped in the `ospfd.conf` on each router before you start `xorp`.   
+
+There are several key configuration itemsin the `OSPF` configuration file for `router-1`. 
+
+__Interface Information:__
 {{{
 interface eth1 {
@@ -128 +126 @@
 }}} 
 
- * `OSPF` Metrics
+__OSPF Metrics:__
 {{{
 protocols {
@@ -153 +151 @@
 }}}
 
-
-To simplify the configuration process, we assume the `interface-cost` is 10 and the `hello-interval` for every virtual interface. So the main information we need from each node is the virtual interface's `address` and its `prefix-length`, as well as the router's `router-id` that is required for the `protocol` section in the configuration file. 
-
-Similarly, create `ospfd.conf` under `/etc/xorp/` for the other three virtual routers. Sample `ospfd.conf` files for [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r2-ospf.conf `router-2`],  [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r3-ospf.conf `router-3`], and  [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r4-ospf.conf `router-4`]). 
+To simplify the configuration process, we assume the `interface-cost` and the `hello-interval` are both set to 10 seconds for every virtual interface. The main information needed from each node is the virtual interface's `address` and its `prefix-length`, as well as the router's `router-id` that is required for the `protocol` section in the configuration file. 
+
+Similarly, repeat the configuration steps about for each of the other three virtual routers. Sample `ospfd.conf` files for [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r2-ospf.conf `router-2`],  [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r3-ospf.conf `router-3`], and  [http://groups.geni.net/geni/raw-attachment/wiki/GENIExperimenter/Tutorials/SystematicExprCaseStudy/SmallTopo/DesignSetup/r4-ospf.conf `router-4`]). 
 
 
@@ -163 +160 @@
 === i. Start `XORP` Process ===
 
-First, we need to add `xorp` to the group. Login to `router-1` and run the following command:
+First, we need to add the `xorp` user group. Login to `router-1` and run the following command:
 
 {{{
@@ -173 +170 @@
 {{{
 xuanliu@router-1:~$ cd /usr/local/xorp/sbin/
-xuanliu@router-1:/usr/local/xorp/sbin$
 xuanliu@router-1:/usr/local/xorp/sbin$ sudo ./xorp_rtrmgr -b /etc/xorp/ospfd.conf -l /tmp/xorp_rtrmgr_log -d
 }}}
@@ -196 +192 @@
 }}}
 
-=== ii. Verify the Routing ===
+=== ii. Verify Routing ===
 
 Login to `router-1` and view the `OSPF` routing table:
@@ -304 +300 @@
 <table id="Table_01" border="0" cellpadding="5" cellspacing="0">
         <tr>
-                <td>
-                        <img src="http://trac.gpolab.bbn.com/gcf/raw-attachment/wiki/Graphics/stock_notes.png" width="40" height="40" alt="Note">
-               </td>
+        <td>
+        <img src="http://trac.gpolab.bbn.com/gcf/raw-attachment/wiki/Graphics/stock_notes.png" width="40" height="40" alt="Note">
+        </td>
 <td>
 Please go to <a href="http://groups.geni.net/geni/wiki/HowTo/WriteInstallScript"> HOWTOWriteInstallScript</a> for details on how to write an install script.