5. Case 1: Software Installation, Configuration and Operation

Fig 2-1) Case 1 WiMAX Base Station Configuration

Fig 3-1) Case 1 Detailed WiMAX Base Station Configuration

Fig 4-1) Case 1 WiMAX Software Configuration

5.1 WiMAX OID and IP Address Assignment

Campus	OID	IP Range
WINLAB	44:51:DB:00:00:XX	10.3.0.XX
NECLabs	44:51:DB:00:01:XX	10.3.1.XX
BBN	44:51:DB:00:02:XX	10.3.2.XX
Stanford	44:51:DB:00:03:XX	10.3.3.XX
Poly	44:51:DB:00:04:XX	10.3.4.XX
UMass	44:51:DB:00:05:XX	10.3.5.XX
Columbia	44:51:DB:00:06:XX	10.3.6.XX
UColorado	44:51:DB:00:07:XX	10.3.7.XX
UWisconsin	44:51:DB:00:08:XX	10.3.8.XX
UCLA	44:51:DB:00:09:XX	10.3.9.XX

Each campus can have up to 127 basestations (each BS needs two addresses) and/or multiple ASN gateways. The basestations are assigned OIDs and IPs starting from 1 and counting up while ASN gateway machines are assigned IP addresses that are assigned starting from 254 and counting down. For example, first basestation in WINLAB gets IP address on primary controller of 10.3.0.1 and the IP address for the networking card of 10.3.0.2 while the gateway machine gets 10.3.0.254

Issue: Should all use BBN OID, since it is the only one offically regsitered? Also, that all MSs would use same OID?

5.2 Key Configuration Parameters

These are the key parameters, that are gathered and then held in the yaml configuration file

# NOTE: use only 'spaces' to indent !
# ('tab' indents are not supported by the ruby yaml parser used to read this file)
#
# This is the Config file for the WiMAXRF GridService
#
---
wimaxrf:

  asngw:
   if: eth1
   ip: 192.168.1.50
   port: 2231
   id: ASNGW000
   tecnh: 3
   dsc: IP-Config-Mgmt

  click:
    def_gw: 10.41.0.1
    net_mask: 255.255.0.0
    def_ip: 10.41.0.254

  bs:
   ip: 192.168.1.10
   mask: 255.255.255.0
   bsid: 00:00:04:00:00:01
   frequency: 2590000                           

5.3 Base Station Server Installation

5.3.1 Expected OS: Ubuntu 9.04

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 9.04
Release:        9.04
Codename:       jaunty

5.3.2 Setup Ethernet Interfaces

It is expected that there be 3 wired Ethernet interfaces named: eth0, eth1, eth2. You may need to edit /etc/udev/rules.d/70-persistent-net.rules to make the names

reflect the correct physical ports. The /etc/network/interfaces file should look similar to this:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# This interface connect to the Base Station

auto eth1
iface eth1 inet static
address 192.168.1.50
network 192.168.1.0
netmask 255.255.255.0
broadcast 192.168.1.255

#This is the gateway interface, it should get a routeable address from DHCP

auto eth2
iface eth2 inet dhcp

#Reserved for future USE

auto eth0
iface eth0 inet static
address 10.41.0.3
network 10.41.0.0
netmask 255.255.0.0
broadcast 10.41.255.255

5.3.3 Install Required Packages

1. Configure apt/sources to include mytestbed.net and orbit-lab.org. Edit the /etc/apt/sources.list and add the following lines:

   deb http://pkg.mytestbed.net/ubuntu karmic/
   deb http://packages.orbit-lab.org/ubuntu jaunty main
   

2. Update information based on the changed sources.list.

    sudo apt-get update
   

3. Now install the ASN-GW software

   sudo apt-get install asn-gw0.9.0 click1.6.0 
   

4. Install SAM.rb from repository into home directory

This will install 333MB or so worth of packages. You will need to confirm some of the packages from our repository.

Create Debian Package
Create Package Site

5.4 Setup NEC BTS

Please note: Do not restart BTS until all changes are complete. If you do happen to restart, you will have to use the serial interface to connect to the BTS.

5.4.1: Step 1 Configuring the IP

We'll need to adjust the ip's of both interfaces. They're managed via two independent files which exists on two different machines/ip combos.

1. The "DSP" machine:
   1. Copy the attached networkenv.orbit​ file locally (to your console) and edit it's addresses to reflect your organisations Address Structure. If this is the first BTS in your organization your address should be of the form 10.3.X.1, where X is the numerical ID given to your group. You'll only need to edit the #MACO segment of information. You will also need to set the NAMESERVER flag to something reasonable like googles public DNS (8.8.8.8), or a specfic DNS in your network. Note that we're using class B addresses.

      #MAC0
      export INTERFACE_0=eth0
      export IPADDR_0=10.3.Y.1
      export NETMASK_0=255.255.0.0
      export BROADCAST_0=10.3.255.255
      export GATEWAY_0=10.3.YX.1
      export NAMESERVER_0=8.8.8.8
      

   2. Copy the file to /flash/networkenv on the DSP machine (via SCP). The default IP of the DSP machine is 192.168.1.10.

      scp networkenv.orbit root@192.168.1.10:/flash/networkenv
      

2. The "Network" Machine
   1. Telnet to the N/W card at 192.168.1.42/24. User root as the username, you will not be asked for a password.
   2. Edit the /etc/network/interfaces eth1 entry to organisations Address Structure. It should be of the form 10.3.Y.2, for the first BTS. The entry should look similar to:

      auto eth1
      iface eth1 inet static
      address 10.3.Y.2
      network 10.3.0.0
      netmask 255.255.0.0
      broadcast 10.3.255.255
      gateway 10.3.Y.1
      

3. Finally you'll need to configure your own interface to be in the same subnet as the BS Ip's. For the first BS it should be of the form 10.3.X.254.

5.4.2 Step 2 Configure the BTS software

1. ssh to the new IP of the DSP machine.

ssh !root@10.3.Y.1

1. Use wiset commands below to correct configuration on the BTS:
   1. Enter these Verbatim

      wiset authgw_id 0x41534E47
      wiset authgw_port 0x08B7
      wiset asngw_id 0x41534E4757303030
      wiset asngw_dp_port  0x08B7
      wiset asngw_ep_port 0x08B7
      wiset bs_rx_port 0x08B7
      wiset frequency  2551500    or ??
      wiset bs_tx_power 40
      wiset bw_mode 0
      wiset dlul_ratio 2
      wiset ttg 296
      wiset rtg 168
      wiset framesync_mode 2
      wiset antenna_gain 0
      

   2. These commands require you to change the IP paramter specfied in hex. The IP should that of the console's eth1 interface (which speaks to the BTS).

      wiset authgw_ip 0x0A030047
      wiset asngw_dp_ip 0x0A030047
      wiset asngw_ep_ip 0x0A030047
      

   3. You will find your bsid (OID) on this page. Note remove the colons, and set the last two digits to reflect the IP of the DSP machine (e.g. the first one should be 01).

      wiset bsid 0x4451DB0000XX
      

After this process, the BS will require a reboot.

This ​site converts dot quad to hex.

5.5 Manual Configuration of SAMrb

Note these instructions need to be followed if you are using just the SAMrb instead of the full omf-wimaxrf-aggmgr-5.2 webservice.

Once you untar and enter in the SAMrb directory you can edit the file SimpleAuthManager.rb.

In this file please change the following to reflect your network settings:

1. The $ips hash table should be updated to include your client mac to IP mapping.
2. The $def_gw = "10.41.0.1" and $net_mask = "255.255.0.0" settings should be used to reflect the CSN side settings.

5.6 Configuration of ASN-GW Controller

Configuration of software both for the ASN-GW and the WiMAX BTS is done through a single yaml configuration file on the ASN.

To enable the features we will need to copy the wimaxrf.yaml from /etc/omf-aggmgr-5.2/available to /etc/omf-aggmgr-5.2/enabled/.

Edit this file change settings (if needed)

# NOTE: use only 'spaces' to indent !
# ('tab' indents are not supported by the ruby yaml parser used to read this file)
#
# This is the Config file for the WiMAXRF GridService
#
---
wimaxrf:

  asngw:
   if: eth1
   ip: 192.168.1.50
   port: 2231
   id: ASNGW000
   tecnh: 3
   dsc: IP-Config-Mgmt

  click:
    def_gw: 10.41.0.1
    net_mask: 255.255.0.0
    def_ip: 10.41.0.254

  bs:
   ip: 192.168.1.10
   mask: 255.255.255.0
   bsid: 44:51:DB:00:00:XX
   frequency: 2590000                           

Making changes in this file should propagate changes to the ASN software and the BTS (IDU) software.

These are the files which are located in the /etc directory on the asn-gw machine.

In this section we will describe the changes required to the default configuration files for accommodating custom settings and IPs.

asnctrl

The points that need to be changed in the asnctrl.conf file are:

R6_BSID[0] = 44:51:DB:00:00:XX      // BSID allocated as per GENI
R6_BSAddress[0] = [10.3.Y.61]:2231  //IP address of the IDU
TunnelEndpoint = [10.3.Y.71]:0      //IP of the ASN - GW

asnctrl_ASNGW000

R4_BSID[0][0]=44:51:DB:00:00:XX

asnctrl_common

No changes are required in this file.

asnctrl_gre

This is an output file which shows the mapping of the client MAC address to the uplink and downlink GRE tunnel. This file does not need any configuration.

asnctrl_service_class

This file contains the mapping of the mac address to the service class. Sample entries are as shown below:

00:18:41:85:5e:a3       IP-Config-Mgmt
00:12:cf:b2:ad:9a       IP-Config-Mgmt
00:12:cf:b2:a4:e8       IP-Config-Mgmt
00:12:cf:b2:9c:73       IP-Config-Mgmt
00:1b:8b:54:02:9a       IP-Config-Mgmt
00:1b:8b:54:02:84       IP-Config-Mgmt
00:1d:e1:0a:5e:87       IP-Config-Mgmt

clasify-ctrl

This file is located here: /usr/share/asngw/classify-ctrl.sh IP addresses need to be updated here based on the settings used:

: ${DEV_R3:="eth0"}
: ${DEV_R6R4:="eth1"}
: ${MSADDR:="10.42.0.0/16"}
: ${R3_NETWORK:="10.41.0.0/16"}
: ${R3_ADDR:="10.41.0.3"}   
: ${R6R4_NETWORK:="192.168.1.0/24"}
: ${R6R4_ADDR:="192.168.1.50"}  

trapctrl

No changes are required in this file.

epctrl

R3LocalDevice = eth0
R4LocalDevice = eth1
R6LocalDevice = eth1

5.7 Configuration of CLICK

Configuration of the CLICK router is done by SAM.rb.

Here is an example configuration when no MSs are registered:

(sample)

Here is an example configuration when one MS is registered:

(sample)

5.8 Operations and Testing

5.8.1 Login to Base Station Server

Login through the console on the Base Station Server (ASN-GW) and test the following.

1. The BTS should be reachable from the ASN-GW with the default IP setting:
   • ping the BTS interface; it was assigned the fixed IP 192.168.1.10.
   • measure the round trip times

2. Power cycle the BTS through the use of stop and start scripts.
   • Perform a hard reset if required (if updated parameter values are not reflected).
   • There should also be a green light on the IDU after a software power cycle of the IDU.
   • The software power cycle can be preformed by the following commands:

     /etc/init.d/asn-gw stop
     /etc/init.d/asn-gw start
     

3. Ping the outside interface and see if the DMZ gateway is reachable from the ASN-GW

After successful completion we know that the ASN is able to send traffic both downlink to the IDU and outbound towards the internet.

5.8.2 Login to BTS

1. To login:

(sample)

2. Power cycle the BTS through the use of stop and start scripts.
   • Perform a hard reset if required (if updated parameter values are not reflected).
   • There should also be a green light on the IDU after a software power cycle of the IDU.
   • The software power cycle can be preformed by the following commands:

     /etc/init.d/asn-gw stop
     /etc/init.d/asn-gw start
     

5.8.3 ASN GW Operation

To control the WiMAX base station, run the stop and start scripts as follows:

Start script:

/etc/init.d/snmpd start
/etc/rc.d/init.d/trapctrl start
sleep 1
/etc/rc.d/init.d/asnctrl start
sleep 1
/etc/rc.d/init.d/epctrl start
#sleep 1

Stop script:

/etc/rc.d/init.d/epctrl stop
/etc/rc.d/init.d/asnctrl stop
/etc/rc.d/init.d/trapctrl stop
/etc/init.d/snmpd stop
pkill -9 asnctrl
pkill -9 epctrl

A few simple checks to make sure things are working:

1. There should be 3 running processes:

   root      3128     1  0 19:10 ?        00:00:00 trapctrl
   root      3137     1  0 19:10 ?        00:00:02 asnctrl
   root      3227     1  0 19:10 ?        00:00:02 epctrl
   

1. Some log files should start filling up in /var/log:
   1. asnctrl.log
   2. epctrl.log

5.8.4 RF Transmission

1. Scan on the client and check if the basestation's signal is seen using the procedure described below. If we are able to connect step 2 can be ignored. Else try step 2.

Configure driver at the client to ensure all required parameters are configured correctly.

• Change the /etc/asnctrl_service_class.conf to include client and service class information.
• Possibly include SSID to match with the BTS
• Check center frequency to match with the BTS
• Enable (locks) if any
• Disable wifi if operating on a dual mode card (since quite a few times they work in a mutually exclusive mode)
• Enable a static IP setting at the client to allow for baseline IP connectivity

2. If possible sweep the spectrum through an analyzer to determine proper transmission at the center frequency.
   • Vary transmit power at the BTS using wiset calls on the BTS or through the web interface and then measure the corresponding changes on the analyzer.

5.8.5 SAM Monitoring

5.8.6 CLICK Modular Router Monitoring

5.8.9 Mobile Station Registration

5.8.10 Traffic Monitoring

Install wireshark on ethernet interfaces.