SNMP Upgrade Procedure for NV Transmitters IS09019C Issue 1.0...26 November 2010 Nautel Limited 10089 Peggy's Cove Road, Hackett's Cove, NS, Canada B3Z 3J4 T.877 6 nautel (628835) or +1.902.823.2233 F.+1.902.823.3183 info@nautel.com U.S. customers please contact: Nautel Inc. 201 Target Industrial Circle, Bangor ME 04401 T.877 6 nautel (628835) or +1.207.947.8200 F.+1.207.947.3693 info@nautel.com e-mail: support@nautel.com www.nautel.com Copyright 2010 NAUTEL. All rights reserved.
IS09019C SNMP Upgrade Procedure for NV Transmitters INFORMATION SHEET 1 INTRODUCTION The NV series FM transmitters are microprocessor controlled units. Periodically, enhancements or improvements to the operating system are identified and made available. This requires a software update. 1.1 Equipment Affected This procedure applies to NV series FM transmitters. 1.2 Responsibility for Implementation of Procedure This procedure should be carried out by qualified station maintenance personnel who are familiar with the NV series FM transmitters. 1.3 Scheduling Implement this procedure at the convenience of station maintenance personnel. The transmitter can remain on-air during this procedure. 1.4 Manpower Requirements This modification will require 30 minutes to complete. 1.5 Special Tools/Test Equipment The following test equipment is required: laptop (i.e., local computer for direct connection) or network computer with Windows and Internet Explorer Web browser CAT5 Ethernet cable USB keyboard software file: NV_MIB_date_version.zip, which contains the following files: snmp_agent.zip (for the transmitter) NAUTEL_MIB.txt (for the remote monitoring computer) NAUTEL_NV_MIB.txt (for the remote monitoring computer) 2 PRELIMINARY CHECKS (a) SNMP monitoring should only be installed on NV transmitters with transmitter software release 2.6 or higher (within the 2.x series). Contact Nautel if you are unsure of the present transmitter software status. SNMP Update Procedure for NV Transmitters Page 1 IS09019C Issue 1.0
NOTE For transmitters containing compact flash cards programmed at Nautel with Software Release 2.8.x or higher, the upgrades outlined in paragraphs 3 and 4 are not required. See paragraph 5 for useful MIB browser information. For transmitters containing compact flash cards originally loaded with image file (.iso files) versions less than 2.8.x, but field upgraded using version 2.6, 2.7 or 2.8.x zip files (.tgz), perform the instructions in paragraphs 3 and 4. (b) Nautel does not recommend distributing the files using email as this may corrupt the SNMP agent file. 3 TRANSFERRING UPGRADE FILE The following steps assume either a laptop will be used to connect directly to the transmitter OR the transmitter and network computer are currently connected to the same network. 3.1 Unzipping Software File to PC (a) Unzip the provided file NV_MIB_date_version.zip to the computer being used to upload files to the transmitter. (b) When the file has been unzipped, the following files should be present on the computer: snmp_agent.zip (do not unzip this file) NAUTEL_MIB.txt NAUTEL_NV_MIB.txt 3.2 Transmitter IP Configuration (a) From the transmitter AUI, go to Menu/ Software Configuration / Network Setup. (b) Record your current network settings (IP address, Subnet Mask, Default Gateway). (c) If the transmitter and network computer are connected to the same network, proceed to step (o). If connecting directly from a laptop to the transmitter, select Static IP and set as follows on the AUI: IP Address: 10.10.10.2 Subnet Mask: 255.255.255.0 Default Gateway: 10.10.10.255 Press Apply then Reboot Now. (d) Set the transmitter for Remote control. (e) The following steps assume the laptop operating system is Windows XP. Adapt as required for computers with different operating systems. (f) On the laptop, go to Start Menu / Control Panel / Network Connections / Local Area Network. (g) In the Local Area Network Status, open the General tab and choose Properties. Scroll down and highlight Internet Protocol (TCP/IP). Choose Properties. Page 2 Issue 1.0 SNMP Upgrade Procedure for NV Transmitters IS09019C
(h) In the Internet Protocol (TCP/IP) Properties window, select Use the following IP address. (i) Enter the following settings: IP Address: 10.10.10.3 Subnet Mask: 255.255.255.0 Default Gateway: 10.10.10.255 (j) In the Internet Protocol (TCP/IP) Properties window, select OK. (k) In the Local Area Connection Properties window, select OK. (l) In the Local Area Connection Status window, select Close. (m) Close the Network Connections window. (n) Connect the laptop network interface card to the transmitter LAN port (A1J21 on the control/interface PWB) using a CAT5 Ethernet cable. (o) Open Internet Explorer. If using a network computer enter the IP address recorded in step 3.2 (b). If using a laptop, enter 10.10.10.2. The transmitter login screen should appear. (p) At the transmitter login screen enter: User: Nautel or **** Password: none (default) or **** **** denotes an alternate user assigned password and user name of an account that has Super User or Read/Write permission level. (q) Navigate through the AUI to Menu / Software Configuration / Upgrade Software and press Browse. Locate software update file snmp_agent.zip. Press Upload to load the file into the transmitter boot image list. (r) Close the web browser application. 4 UNZIP THE SNMP AGENT FILES (a) Set the transmitter to either RF Off or RF On state. (b) Set the transmitter for Local control. Perform the following steps locally (in front of the transmitter AUI). (c) Connect a USB keyboard to any of the four ports of the single-board computer (SBC) located on the rear of the transmitter s front door. (d) Press and hold the Alt key and press the F2 key. A mostly blank screen will appear on the AUI. (e) Press and hold the Alt key and press the R key. A menu will appear. SNMP Update Procedure for NV Transmitters Page 3 IS09019C Issue 1.0
(f) Press the down arrow key to highlight Terminals. Press the right arrow key. A sub menu will appear. (g) Highlight xterm and press the Enter key. A terminal window will appear displaying a Linux command prompt. (h) Verify the snmp directory exists by typing the following and pressing the Enter key: cd /readwrite/snmp No message will appear if the directory exists. An error message will appear if the directory does not exist. (i) If the snmp directory does not exist, create it by typing the following and pressing the Enter key: mkdir /readwrite/snmp Then type the following and press the Enter key: cd /readwrite/snmp (j) Type the following command and press the Enter key to move the snmp_agent.zip file to the proper directory. mv /readwrite/firmware/snmp_agent.zip snmp_agent.zip (k) Type the following command and press the Enter key to terminate the SNMP agent. killall snmpd -9 (l) Type the following command and press the Enter key to unzip the files for the SNMP patch. unzip snmp_agent.zip Type ls snmp_agent.zip and press the Enter key to confirm that the files exist. If not, download the zip file again. (m) The user may be prompted to replace a file. Press the A key and the Enter key to replace all files. The files will be listed as they decompress. (n) Type the following command and press the Enter key to view the startup script. view /readwrite/startup A list of text lines will appear. (o) Press the A key to enter INSERT mode, which allows editing of the text lines. (p) Use the arrow keys to navigate to line 45, which reads /readwrite/scripts/start_screensaver.sh & (NOTE: some text editors show the cursor s line position at the bottom, right of the screen). Page 4 Issue 1.0 SNMP Upgrade Procedure for NV Transmitters IS09019C
(q) At the end of line 45, press Enter to create a blank line. Type the following, noting the use of single spaces between certain character segments: xterm -hold -e cd /readwrite/snmp/share/snmp &&./start_snmp_agent.sh & (r) Press Esc to leave INSERT mode. (s) Type :w! and press Enter. A text message similar to startup xxxxx written will display. (t) Type :q and press Enter to return to the original prompt from step (n). (u) Press and hold the Alt key and press the F1 key. The AUI will be displayed again. (v) This completes the software upgrade in the transmitter. Restore the former network settings on the transmitter and laptop as required [see step 3.2 (b)]. (w) From the transmitter AUI, go to Menu/ Software Configuration / Network Setup, and set the network settings (IP address, Subnet Mask, Default Gateway) recorded in step 3.2 (b). (x) From the transmitter AUI, go to Menu / Software Configuration / Maintenance and press Reboot AUI. 5 MONITORING STATION SOFTWARE FILES Perform the following steps on a remote monitoring computer with network connectivity to the transmitter. The computer must have its own third party SNMP client application previously installed. The following steps are general. Exact details for testing the SNMP agent depend on the SNMP client application being used. NOTE To access SNMP through a firewall, ports 161 and 162 on the customer network/firewall/isp must be left open and set to UDP mode to allow UDP traffic. (a) Launch the SNMP client application. (b) Load the NAUTEL-MIB.txt file. (c) For NV transmitters load the NAUTEL-NV-MIB.txt file. (d) Set Agent Port to 161. (e) Set SNMP version to 1. (f) Set Read Community to public. (g) Set Write Community to private. (h) Set User to root. (i) Set Password to 123456. (j) Point the SNMP client application to the transmitter s IP address. SNMP Upgrade Procedure for NV Transmitters Page 5 IS09019C Issue 1.0
(k) Issue an SNMP WALK command to retrieve all available information from the transmitter. (l) Issue an SNMP GET command to retrieve data for a single item. (m) Remote users will have basic transmitter control including RF on/off, power control and exciter selection. They will also be able to monitor alarms, status information and analog voltages representing power supply and RF power levels. NOTE Transmitters containing 2.8.x, compact flash cards or 2.8.x.tgz files have local/remote isolation. Transmitters using lower versions.tgz files, however, allow remote control via SNMP commands while the transmitter is in local mode. Nautel strongly recommends you upgrade your transmitter s software to the newest possible version. (n) The procedure is complete. Page 6 Issue 1.0 SNMP Upgrade Procedure for NV Transmitters IS09019C