Cisco IOS Dial Technologies Command, VC-340

Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

	Command		Purpose

Step 20 Router(config)# access-listaccess-list-number			Creates an access list.
	{permit deny} source source-mask [destination		The keywords and arguments are as follows:
	destination-mask] {eq neq} [[source-object]		The keywords and arguments are as follows:
	[destination-object] [identification] any]		• access-list-number—Specifies the integer that
			• access-list-number—Specifies the integer that
			you choose. The number should be between 300
			and 399, and it uniquely identifies the access list.
			• permit—Permits access when there is an address
			match.
			• deny—Denies access when there is an address
			match.
			• source—Specifies the source address. DECnet
			addresses are written in the form area.node. For
			example, 50.4 is node 4 in area 50. All addresses
			are in decimal.
			• source-mask—Specifies the mask to be applied
			to the address of the source node. All masks are
			in decimal.
			• destination—(Optional) Specifies the DECnet
			address of the destination node in decimal
			format. DECnet addresses are written in the form
			area.node. For example, 50.4 is node 4 in area 50.
			All addresses are in decimal.
			• destination-mask—(Optional) Specifies the
			destination mask. DECnet addresses are written
			in the form area.node. For example, 50.4 is node
			4 in area 50. All masks are in decimal.
			• eq—Specifies that the item matches the packet if
			all the specified parts of the source object,
			destination object, and identification match the
			data in the packet.
			• neq—Specifies that the item matches the packet
			if any of the specified parts do not match the
			corresponding entry in the packet.
			• source-object—(Optional) Contains the
			mandatory keyword src and one of the following
			optional keywords:
			– eq neq lt gt—Specifies equal to, not
			equal to, less than, or greater than. These
			keywords must be followed by the argument
			object-number, a numeric DECnet object
			number.
			– exp—Stands for expression; followed by a
			regular-expression that matches a string. See
			the “Regular Expressions” appendix in the
			Cisco IOS Dial Technologies Command
			Reference for a description of regular
			expressions.

		Cisco IOS Voice, Video, and Fax Configuration Guide
		Cisco IOS Voice, Video, and Fax Configuration Guide

VC-340

VC-289 specifications

Cisco Systems has long been a leader in networking technology, and among its diverse range of products is the VC-289. Designed specifically for enhanced performance in high-demand environments, the VC-289 serves a critical role in supporting the modern networking infrastructure.

One of the standout features of the VC-289 is its scalability. The device is engineered to easily accommodate expanded workloads, ensuring that organizations can grow without the need for frequent upgrades. This scalability is complemented by Cisco's commitment to backward compatibility, allowing businesses to integrate new systems with existing setups seamlessly.

In terms of performance, the VC-289 boasts impressive processing power. With advanced multi-core architecture, it is capable of handling multiple data streams simultaneously, making it ideal for environments that require consistent data flow, such as cloud computing and IoT applications. The device’s high throughput ensures that users experience minimal latency, facilitating quick data transfers even during peak usage times.

Security is another key characteristic of the VC-289. Cisco has integrated robust security protocols that protect against various cyber threats. Through features such as advanced encryption standards and intrusion prevention systems, organizations can ensure that sensitive data remains secure and is not compromised during transmission.

Another notable technology within the VC-289 is its support for software-defined networking (SDN) capabilities. This allows for more flexible network management, enabling IT teams to adapt the network according to evolving business needs. The ability to programmatically control the network also means that businesses can implement changes more rapidly, reducing downtime and improving overall productivity.

The VC-289 is designed with energy efficiency in mind, featuring power-saving modes that help reduce operational costs. This focus on sustainability not only benefits the environment but also appeals to organizations striving to meet corporate social responsibility objectives.

In conclusion, the Cisco Systems VC-289 stands as an exemplary solution for modern networking challenges. With its scalability, performance capabilities, enhanced security features, SDN support, and energy efficiency, it meets the demands of today's fast-paced and ever-evolving technological landscape. Organizations looking to invest in a robust networking solution would do well to consider the VC-289 as a cornerstone of their infrastructure.