Chapter 2 Installing and Configuring Cisco HSI Software

Installing the Cisco HSI

Installing Multiple Cisco HSIs in a Redundant PGW 2200 Configuration

This section describes how to install and configure two Cisco HSI for use with a redundant Cisco PGW 2200 configuration (See Figure 2-1).

Figure 2-1 Dual Cisco HSI with a Redundant PGW 2200 Configuration

Cisco PGW

Cisco PGW

Cisco HSI-A

Cisco HSI-B

2200-A

2200-B

194.182.147.226

 

194.182.147.227

 

 

194.182.147.228

 

 

 

 

 

 

194.182.147.242

194.182.147.243

194.182.147.244

 

 

 

 

 

 

 

 

 

 

 

69729

Caution To ensure the successful installation of two Cisco HSIs, after Step 22 of the “Installing Cisco HSI” section on page 2-5, provision the software for the active host first before proceeding to Step 1 below. See “Configuring the Cisco HSI” section on page 2-12for configuration information.

Only one active provisioning session is permitted, and provisioning is permitted only on the active Cisco HSI.

Exit the provisioning session on the active host and continue to Step 1 below. If software is not provisioned after it is installed on the active host, the stand-by host is not synchronized with the active host. As a result, a forced switchover might fail.

To install two Cisco HSIs for a redundant PGW 2200 configuration (a configuration with two Cisco PGW 2200 hosts), complete the following steps:

Step 1 Continuing from Step 22 of the “Installing Cisco HSI” section on page 2-5, exit server 1. Step 2 Log in to server 2 as root and go to the # prompt.

Step 3 Insert the Cisco HSI CD-ROM in the CD-ROM drive.

Step 4 Follow the installation instructions found in Step 3 through Step 22 of the “Installing Cisco HSI” section on page 2-5.

Installation of the dual Cisco HSI for a redundant PGW 2200 configuration is now complete. (See the example configuration script in the following section.)

 

Cisco H.323 Signaling Interface User Guide

2-10

OL-4806-01 Rev. A14

Page 35 Page 37
Page 36
Image 36
Cisco Systems H.323 manual Cisco HSI-A
Page 35 Page 37

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.
Top Page Image Contents