Chapter 4 Managing the Cisco HSI

Measurements

Table 4-3 H.245 Counter Group

Counter Name

Measurement

Type

Comments

 

 

 

 

 

MASTER_SLAVE_ATT_TOT

H.245

Master Slave

Integer

Incremented whenever either side of the

 

Determination Attempts

 

call initiates the master slave

 

 

 

 

determination procedure (using either

 

 

 

 

H.245 tunneling or a separate H.245

 

 

 

 

signaling path).

 

 

 

 

 

MASTER_SLAVE_SUCC_TOT

H.245

Master Slave

Integer

Incremented whenever a master slave

 

Determination Successes

 

determination procedure is completed.

 

 

 

 

 

TERM_CAP_XCHG_ATT_TOT

H.245

Terminal Capability

Integer

Incremented whenever either side of the

 

Exchange Attempts

 

call initiates the capability exchange

 

 

 

 

procedure (using either H.245 tunneling

 

 

 

 

or a separate H.245 signaling path).

 

 

 

 

 

TERM_CAP_XCHG_SUCC_TOT

H.245

Terminal Capability

Integer

Incremented whenever a capability

 

Exchange Successes

 

exchange procedure is completed.

 

 

 

 

 

OPEN_CH_ATT_TOT

H.245

Open Logical

Integer

Incremented whenever either side of the

 

Channel Attempts

 

call initiates the open logical channel

 

 

 

 

procedure (using either H.245 tunneling

 

 

 

 

or a separate H.245 signaling path).

 

 

 

 

 

OPEN_CH_SUCC_TOT

H.245

Open Logical

Integer

Incremented whenever an open logical

 

Channel Successes

 

channel procedure is completed.

 

 

 

 

 

CLOSE_CH_ATT_TOT

H.245

Close Logical

Integer

Incremented whenever either side of the

 

Channel Attempts

 

call initiates the close logical channel

 

 

 

 

procedure (using either H.245 tunneling

 

 

 

 

or a separate H.245 signaling path).

 

 

 

 

 

CLOSE_CH_SUCC_TOT

H.245

Close Logical

Integer

Incremented whenever a close logical

 

Channel Successes

 

channel procedure is completed.

 

 

 

 

 

AVG_ROUND_TRIP_DELAY

H.245

Round Trip Delay

Average (ms)

The average time in milliseconds (ms) for

 

Determination

 

round trip delay measured as a result of

 

 

 

 

successful round trip delay determination

 

 

 

 

procedures.

 

 

 

 

 

EMPTY_CAP_SET_TOT

H245

 

Integer

Incremented each time an empty cap set

 

 

 

 

request is received from the remote peer.

 

 

 

 

Collection intervals are provisionable

 

 

 

 

(default is 12 hours).

 

 

 

 

 

H323_T38_FAX_ATT_TOT

H245

 

Integer

Incremented for each T.38 Fax Call

 

 

 

 

request from the remote peer. Collection

 

 

 

 

intervals are provisionable (default is 12

 

 

 

 

hours)

 

 

 

 

 

H323_T38_FAX_SUCC_TOT

H245

 

Integer

Incremented for each T.38 Fax Call

 

 

 

 

request from the remote peer that is

 

 

 

 

successfully reconfigured for T.38 fax

 

 

 

 

working. Collection intervals are

 

 

 

 

provisionable (default is 12 hours).

 

 

 

 

 

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

4-5

 

 

 

 

 

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Cisco Systems H.323 manual Masterslaveatttot, Masterslavesucctot, Termcapxchgatttot, Termcapxchgsucctot, Openchatttot
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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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