Command Reference

show controller cable-modem des

To display information about the Data Encryption Standard (DES) engine registers, use the show controller cable-modem des Privileged EXEC command.

show controller cable-modem des

Syntax Description

This command has no key words or arguments.

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 NA.

Sample Display

DES engine registers are displayed in the following example:

uBR904# show controller cable-modem 0 des downstream des:

ds_des_key_table: key 0: even 0, odd 0 key 1: even 0, odd 0 key 2: even 0, odd 0 key 3: even 0, odd 0

ds_des_cbc_iv_table:

iv0: even 0, odd 0

iv1: even 0, odd 0

iv2: even 0, odd 0

iv3: even 0, odd 0

ds_des_sid_table:

sid_1=0x0000, sid_2=0x0000, sid_3=0x0000, sid_4=0x0000 ds_des_sid_enable=0x80, ds_des_ctrl=0x2E ds_des_sv=0x0F00

ds_unencrypted_length=0x0C upstream des:

us_des_key_table: key 0: even 0, odd 0 key 1: even 0, odd 0 key 2: even 0, odd 0 key 3: even 0, odd 0

us_des_cbc_iv_table:

iv0: even 0, odd 0

iv1: even 0, odd 0

iv2: even 0, odd 0

iv3: even 0, odd 0

pb_req_bytes_to_minislots=0x10

us_des_ctrl=0x00, us_des_sid_1= 0x1234 ds_unencrypted_length=0x0C

20Release 11.3(4)NA

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Cisco Systems manual Show controller cable-modem des, UBR904# show controller cable-modem 0 des downstream des

UBR904 specifications

The Cisco UBR904 is a versatile broadband access device designed to deliver high-speed internet and data services in various deployment scenarios, particularly suitable for cable operators and service providers. This device allows operators to provide broadband services over a wide area, utilizing advanced technologies to ensure reliability and performance.

One of the key features of the UBR904 is its capability to support multiple channels for upstream and downstream communication, allowing for greater bandwidth and improved network performance. With its integrated DOCSIS (Data Over Cable Service Interface Specification) compliance, the UBR904 enables operators to leverage existing coaxial cable infrastructures to deliver data services efficiently. This makes it an ideal choice for operators looking to expand their service offerings without the need for extensive infrastructure changes.

Equipped with a powerful processor and ample memory, the UBR904 is designed for high throughput and low latency, supporting IP data services, voice services, and video on demand. It utilizes advanced modulation techniques and error correction algorithms that enhance data transmission efficiency and reliability. This results in a robust platform capable of meeting the demands of high-density areas while accommodating future growth.

The UBR904 also features flexible management capabilities. It includes support for SNMP (Simple Network Management Protocol), enabling operators to monitor and manage network performance effectively. The device can be easily configured through a graphical user interface or command-line interface, providing system administrators with the tools needed for straightforward deployment and maintenance.

In addition to its core functionalities, the UBR904 integrates security features to protect network traffic and ensure user data integrity. This includes capabilities for secure tunneling and access control lists, which enhance the security of the broadband connection.

Furthermore, the Cisco UBR904 is designed with scalability in mind. Operators can easily scale their networks by adding additional modules or interfaces as demand grows. This ensures that the UBR904 can meet the evolving needs of service providers without necessitating a complete hardware overhaul.

In summary, the Cisco UBR904 is a robust, feature-rich broadband access device that combines high performance, advanced technologies, and scalability, making it an excellent choice for operators looking to deliver high-speed internet and data services across diverse environments. Its ease of use and extensive management features further enhance its appeal, positioning it as a key player in the broadband access market.