Software Authentication Manager Commands on Cisco IOS XR Software

sam verify

 

 

 

If the message digest matches the message digest generated by the sam verify command, the software

 

 

 

component is valid.

 

 

 

 

 

Note

You should calculate the hash code on the contents of the flash memory code at the destination

 

 

 

networking device using a different set of files from the one loaded on the flash memory card. It is

 

 

 

possible for an unauthorized person to use the same software version to produce the desired (matching)

 

 

 

hash code and thereby disguise that someone has tampered with the new software.

 

 

 

 

 

 

 

 

 

 

Examples

The following example shows how to use MD5 to generate a message digest on the entire file system on

 

 

 

the flash memory card in slot 0 and then use that message digest as input to perform the digest

 

 

 

comparison. The example shows a third sam verify command, issued with a mismatched message digest,

 

 

 

to show the Software Authentication Manager (SAM) response to a mismatch.

 

 

 

RP/0/RP0/CPU0:router# sam verify disk0: MD5

 

 

 

Total file count in disk0: = 813

 

 

 

082183cb6e65a44fd7ca95fe8e93def6

 

 

 

RP/0/RP0/CPU0:router# sam verify disk0: MD5 082183cb6e65a44fd7ca95fe8e93def6

 

 

 

Total file count in disk0: = 813

 

 

 

Same digest values

 

 

 

RP/0/RP0/CPU0:router# sam verify disk0: MD5 3216c9282d97ee7a40b78a4e401158bd

 

 

 

Total file count in disk0: = 813

 

 

 

Different digest values

 

 

 

The following example shows how to use MD5 to generate a message digest and then uses that message

 

 

 

digest as input to perform the digest comparison:

 

 

 

RP/0/RP0/CPU0:router# sam verify disk0: /crl_revoked.bin MD5

 

 

 

38243ffbbe6cdb7a12fa9fa6452956ac

 

 

 

RP/0/RP0/CPU0:router# sam verify disk0: /crl_revoked.bin MD5

 

 

 

38243ffbbe6cdb7a12fa9fa6452956ac

 

 

 

Same digest values

Cisco IOS XR System Security Command Reference

SR-215

Page 9
Image 9
Cisco Systems SR-207 manual Component is valid, Digest as input to perform the digest comparison, SR-215

SR-207 specifications

Cisco Systems SR-207 is a highly versatile and robust switch designed to meet the demands of modern networking environments. It serves as a critical component in various industries, including enterprise, education, and healthcare, by providing reliable connectivity and exceptional performance.

One of the standout features of the SR-207 is its support for advanced Layer 2 and Layer 3 capabilities. This dual functionality enables organizations to manage both simple data forwarding and more complex routing tasks. Customers benefit from functionalities like VLAN support, Spanning Tree Protocol, and advanced IP routing features that enhance network performance and reliability.

The SR-207 also integrates Cisco's proprietary technologies, including Cisco DNA and Cisco Assurance. With Cisco DNA, users can leverage automation, analytics, and security features that optimize network performance. Cisco Assurance provides predictive insights and automated troubleshooting, allowing organizations to maintain optimal network health and reduce downtime significantly.

Another key characteristic of the SR-207 is its robust security framework. The switch includes features like TrustSec and MACsec, which provide end-to-end encryption and micro-segmentation. These security measures are critical for organizations handling sensitive data, ensuring compliance with industry standards while protecting against potential threats.

In terms of performance, the SR-207 supports high bandwidth and low latency, making it ideal for demanding applications such as high-definition video conferencing and collaborative tools. The switch is equipped with a variety of ports, including Gigabit Ethernet and SFP+ options, enabling seamless integration into existing infrastructure while offering future scalability.

Additionally, the SR-207 is built for energy efficiency, minimizing power consumption without sacrificing performance. Its design incorporates features like power over Ethernet (PoE), enabling it to power connected devices directly through the network cable, reducing the need for additional power sources.

In summary, Cisco Systems SR-207 is a comprehensive switching solution that combines advanced features, robust security, and high performance. With support for modern networking demands and a focus on scalability and energy efficiency, it stands out as a reliable choice for organizations looking to enhance their network infrastructure. Whether used in a small office or a large enterprise setting, the SR-207 provides the tools necessary to build and maintain a robust networking environment.