Troubleshooting and Diagnostics

WiMAX Debug Commands

The following are the WiMAX exec debug commands:

•clear interface wimax interface name statistics

•debug wimax pm {all demux deque error event trace warning}

Checking Signal Strength

If the Received Signal Strength Indication (RSSI) level is very low (for example, if it is less than -110 dBm), follow these steps:

Step 1 Check the antenna connection. Make sure the TNC connector is correctly threaded and tightened.

Step 2 If you are using a remote antenna, move the antenna cradle and check if the RSSI has improved.

Step 3 Contact your wireless service provider to verify that there is service availability in your area.

Retrieving the Electronic Serial Number

If your network provider requests the 11-digit decimal equivalent of your Electronic Serial Number (ESN), you must retrieve your ESN, then convert it to decimal notation. See also, Converting Hexadecimal ESN to Decimal Notation, page 25.

The ESN number is located directly on the modem label in hexadecimal notation. It can also be retrieved using the Cisco IOS CLI using the show sprom module module number slot_number command.

The sample output below shows the ESN number:

Router (config-if)# show sprom module 5 1 DISPLAY linecard sprom contents of module 5: lc-sprom linecard block header is invalid cur_blk_hdr->block_length = 0067 cur_blk_hdr->block_signature = 6003

WARNING: sprom contents are invalid for module 5 instance 1

 

 

 

WARNING: please

power down the module and program the sprom contents

 

 

 

Common block:

 

 

 

 

 

Block Signature

: 0xabab

 

 

 

Block Version

: 3

 

 

 

 

Block Length

: 160

 

 

 

 

Block Checksum

: 0x1494

 

 

 

EEPROM Size

: 65535

 

 

 

 

Block Count

: 2

 

 

 

 

FRU Major Type

: 0x6002

 

 

 

FRU Minor Type

: 0x0

 

 

 

OEM String

: Cisco Systems, Inc.

 

 

 

Product Number

: CALABRIA

 

 

 

Serial Number

: JAF1542AFJQ

 

 

 

Part Number

: 73-13545-01

 

 

 

 

Part Revision

: 18

 

 

 

 

Mfg Deviation

: 0

 

 

 

 

H/W Version

: 0.0

 

 

 

 

Mfg Bits

: 0

 

 

 

 

Engineer Use

: 0

 

 

 

 

Cisco Connected Grid Modules for CGR 1000 Series—WiMAX Installation and Configuration Guide

 

 

 

 

 

 

 

 

 

 

24

 

 

OL-26236-03

 

 

 

 

 

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Cisco Systems CGR1120K9 manual WiMAX Debug Commands, Checking Signal Strength, Retrieving the Electronic Serial Number
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CGR1120K9 specifications

Cisco Systems CGR1120K9 is a robust networking device designed specifically for the Internet of Things (IoT) and industrial applications. As a part of the Cisco Connected Grid Router series, the CGR1120K9 delivers reliable connectivity and supports various networking functionalities to enhance operational efficiency in challenging environments.

One of the prominent features of the CGR1120K9 is its rugged design, built to withstand harsh conditions typical in industrial settings. With an operating temperature range of -40 to +85 degrees Celsius, it is ideal for use in outdoor and remote locations, making it suitable for utilities, transportation, and critical infrastructure industries. Its compact form factor allows for flexible installation options, which is crucial in space-constrained environments.

The CGR1120K9 comes equipped with a range of interfaces, including Ethernet ports and serial interfaces, providing versatility in integrating with different devices and systems. It supports both wired and wireless connections, enabling seamless communication across the IoT landscape. Additionally, the router features a dedicated management interface for simplified configuration and monitoring, ensuring that network administrators can efficiently manage their deployments.

In terms of performance, the CGR1120K9 features advanced routing and security capabilities, including support for IPv6, virtual private networks (VPNs), and firewall functionalities. This ensures secure data transmission over the network while maintaining high-performance levels essential for real-time applications. The device is powered by Cisco's IOS XE software, which offers enhanced operational capabilities through advanced features such as software-defined networking (SDN) and automation.

Another key characteristic of the CGR1120K9 is its scalability. Organizations can easily expand their networks as their needs evolve, ensuring an investment that grows with them. The router is designed to work cost-effectively in both small and large-scale deployments, making it a flexible choice for various business environments.

The CGR1120K9 also supports a range of protocols and standards, ensuring compatibility with existing infrastructure and devices. This is crucial for organizations seeking to modernize their networks while leveraging existing investments in hardware and software.

In conclusion, the Cisco Systems CGR1120K9 stands out as a high-performance, rugged router tailored for the demands of IoT and industrial applications. With its robust features, advanced technologies, and characteristics, it empowers organizations to enhance connectivity and streamline operations in even the most challenging environments.
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