Tip To save the gateway configuration, save it to NVRAM. Refer to the “Saving Configuration Changes” section on page 57.

Clocking Configuration Examples

In the following example, a BITS clock is set at priority 1:

Gateway(config)# dial-tdm-clock priority 1 external

Gateway(config)# exit

Gateway#

In the following example, a trunk clock from an 8 PRI CT1 DFC is set at priority 2 and uses slot 4 and ds1 port (controller) 6:

Gateway(config)# dial-tdm-clock priority 2 4/6

Gateway(config)# exit

In the following example, a trunk clock from a CT3 DFC is set at priority 2 and uses slot 1, ds3 port 0, and ds1 port 19:

Gateway(config)# dial-tdm-clock priority 2 1/0:19

Gateway(config)# exit

In the following example, free-running clock is set at priority 3:

Gateway(config)# dial-tdm-clock priority 3 free

Gateway(config)# exit

Verify

You can verify the system primary and backup clocks, the status of all trunk DFC controller clocks, and information about and the history of the last 20 TDM clock changes and the events that caused them.

•Verify your default system clocks and clock history by using the show tdm clocks command (this example is for T1/E1):

Gateway# show tdm clocks

Primary Clock:

--------------

TDM Bus Master Clock Generator State = HOLDOVER

Backup clocks

for primary:

 

 

Source

Slot

 

Port DS3-Port Priority

Status

State

-------------------------------------------------------------

Trunk cards controllers clock health information

 

------------------------------------------------

 

Slot

Type

7

6 5 4 3 2 1 0

 

 

1

T1

B

B B B B B B B

 

 

CLOCK CHANGE HISTORY

 

 

--------------------------

 

 

CLOCK

 

 

Event

 

Time

-----

 

 

-----

 

----

1/1

Loss Of Signal (LOS)

00:00:22 UTC Tue Nov 30 1999

1/2

Loss Of Signal (LOS)

00:00:22 UTC Tue Nov 30 1999

1/3

Alarm

Indication Signal (AIS)

00:00:22 UTC Tue Nov 30 1999

1/4

Alarm

Indication Signal (AIS)

00:00:22 UTC Tue Nov 30 1999

1/5

Alarm

Indication Signal (AIS)

00:00:22 UTC Tue Nov 30 1999

1/6

Alarm

Indication Signal (AIS)

00:00:22 UTC Tue Nov 30 1999

1/7

Alarm

Indication Signal (AIS)

00:00:22 UTC Tue Nov 30 1999

Gateway#

55

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Cisco Systems Cisco AS5350 Gatewayconfig# dial-tdm-clock priority 1 external, Gatewayconfig# dial-tdm-clock priority 2 4/6
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Cisco AS5400, Cisco AS5350 specifications

Cisco Systems is a global leader in networking and telecommunications technology, and its AS5350 and AS5400 models are prominent offerings in their product line. These devices cater primarily to service providers and large enterprises looking for advanced VoIP, data, and multimedia capabilities.

The Cisco AS5350 is a versatile voice gateway that supports a wide range of protocols including VoIP and PSTN (Public Switched Telephone Network). Designed for scalability, it can handle numerous simultaneous calls, making it an ideal solution for businesses that require robust communication systems. Some of its main features include built-in support for various signaling protocols such as SIP (Session Initiation Protocol) and H.323, which allow seamless integration with existing networks. Additionally, the AS5350 is equipped with high-density digital signal processors (DSPs) that enable efficient call processing and transcoding, ensuring high-quality voice transmission.

On the other hand, the Cisco AS5400 takes this functionality a step further by offering enhanced capabilities suited for more demanding environments. It supports both voice and data services, allowing service providers to deliver a comprehensive solution that includes voice calls, multimedia applications, and broadband services. The AS5400 features a modular design, allowing users to adapt the device to specific needs by adding or removing modules as required. This modularity enhances flexibility and future-proofs the system against evolving technology demands.

Both the AS5350 and AS5400 incorporate advanced security features to protect sensitive communications and data. Features such as encryption, secure signaling, and network access controls are essential for enterprises looking to safeguard their operations in an increasingly vulnerable digital landscape. These gateways also support Quality of Service (QoS) protocols, ensuring that voice traffic is prioritized over other types of data, thereby maintaining call clarity even in times of high data demand.

In conclusion, the Cisco AS5350 and AS5400 are compelling solutions that showcase Cisco's commitment to delivering reliable and high-performance telecommunications devices. By offering state-of-the-art technology, robust features, and a modular approach to scalability, businesses and service providers can ensure they remain competitive in the ever-evolving telecommunications landscape. Whether it is for voice, data, or multimedia applications, these gateways deliver the performance and flexibility needed to meet current and future challenges.
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