Chapter 2 Installing and Configuring Cisco HSI Software

Removing the Cisco HSI

•The system should be restarted to enable the re-initialization of the SNMP processes. The craftsperson needs to change the user to root and issue the following UNIX command:

shutdown -i 6 -g 0 -y

Note To revert to a previous version of the software, manually modify the currentPM and currentGW links in the/opt/GoldWing parent directory to point to the previous version.

The uninstall.sh script uses the PKINST file in the version directory to determine which package name to remove.

Caution When upgrading the Cisco HSI, you must install the security package CSC0h013 before you remove (uninstall) the preceding version of the HSI software. If you do not, the CSC0h013 security package will not operate. This step is not required if you are performing a fresh installation of the Cisco HSI.

Removing the Cisco HSI

To remove the Cisco HSI, complete the following steps:

Step 1 Log in as root.

Step 2 Enter the following command to stop the Cisco HSI:

# /etc/init.d/CiscoGW stop

Step 3 Enter the following commands:

#cd /opt/GoldWing

#ls -l

The following is an example of the screen that displays:

 

drwxr-xr-x

7

cisco

sysadmin

512

Jan

9

18:31 4.1

 

lrwxrwxrwx

1

cisco

sysadmin

19

Jan

9

18:31 currentGW -> /opt/GoldWing/4.1

 

lrwxrwxrwx

1

cisco

sysadmin

19

Jan

9

18:31 currentPM -> /opt/GoldWing/4.1

 

-rwxrwxr-x

1

root

other

3053

Jan

9

18:31 uninstall.sh

Step 4

Enter the uninstall command and specify the version of the software that you want to uninstall, for

 

example:

 

 

 

 

 

 

 

#./uninstall.sh 4.1

The following text displays:

Warning: This script will remove the package OTTgw000

Do you wish to proceed? [n] [y,n,?,q]

Step 5

Type y and press Enter. The following text displays:

 

Deleting generated files

in /opt/GoldWing/4.1

 

The following package is

currently installed:

 

OTTgw000

GoldWing

H323 Adjunct Processor V0.1.6

 

(sparc) 4.1

 

 

Do you want to remove this package?

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

2-13

 

 

 

 

 

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Image 39
Cisco Systems H.323 manual Removing the Cisco HSI, # cd /opt/GoldWing # ls -l, # ./uninstall.sh
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H.323 specifications

Cisco Systems H.323 is a set of standards designed for transmitting audio, video, and data over packet-switched networks. It is a critical technology that enables real-time communication and has become integral to the world of VoIP (Voice over Internet Protocol) and video conferencing applications. Originally developed by the ITU-T, H.323 has been widely adopted and implemented by Cisco Systems, allowing organizations to leverage reliable and scalable communication solutions.

One of the standout features of H.323 is its ability to support interoperability among varying equipment and platforms. This means that devices from different manufacturers can communicate seamlessly, which is vital in a diverse technical environment. H.323 does this by defining protocols that handle signaling, media transport, and control, ensuring that various systems can work together effectively.

Key technologies utilized within H.323 include H.225 and H.245 signaling protocols. H.225 is responsible for call setup and management, establishing communication between endpoints. In contrast, H.245 manages the negotiation of media channels, allowing devices to configure themselves based on the capabilities of each other. This adaptability is crucial for dynamic network conditions typical in VoIP applications.

Another defining characteristic of H.323 is its support for multiple types of multimedia communication, including point-to-point and multipoint calls. This flexibility supports everything from simple audio calls to complex videoconferencing setups, where many participants can share video and audio streams concurrently. Cisco enhances this capability through its hardware and software offerings, optimizing performance for conference calls.

H.323 also features robust error resilience mechanisms. This ensures that real-time data, which is typically sensitive to delays and losses, can be transmitted with minimal disruption. Moreover, it facilitates quality of service (QoS) implementation, allowing organizations to prioritize voice and video traffic over less critical data services, thereby improving the overall user experience.

In conclusion, Cisco Systems H.323 stands out as a comprehensive solution for real-time communication over packet-based networks. Its main features, including interoperability, multimedia support, and enhanced error resilience, position it as a relevant technology in both corporate and personal communication settings. As organizations continue to adopt cloud and hybrid communication models, H.323 remains a reliable backbone for ensuring connectivity and collaboration across diverse platforms.
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