Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

Table 1-3

Supported Networking Protocols on the Cisco Unified IP Phone (continued)

 

 

 

Networking Protocol

Purpose

Usage Notes

 

 

 

 

IEEE 802.1X

 

The IEEE 802.1X standard defines a

The Cisco Unified IP Phone implements the IEEE

 

 

client-server-based access control and

802.1X standard by providing support for the

 

 

authentication protocol that restricts

following authentication methods: EAP-FAST and

 

 

unauthorized clients from connecting to a

EAP-TLS.

 

 

LAN through publicly accessible ports.

When 802.1X authentication is enabled on the

 

 

 

 

 

Until the client is authenticated, 802.1X

phone, you should disable the voice VLAN. Refer to

 

 

access control allows only Extensible

the “Supporting 802.1X Authentication on Cisco

 

 

Authentication Protocol over LAN

Unified IP Phones” section on page 1-17for

 

 

(EAPOL) traffic through the port to which

additional information.

 

 

the client is connected. After

 

 

 

 

authentication is successful, normal traffic

 

 

 

 

can pass through the port.

 

 

 

 

 

Internet Protocol (IP)

IP is a messaging protocol that addresses

To communicate using IP, network devices must

 

 

and sends packets across the network.

have an assigned IP address, subnet, and gateway.

 

 

 

IP addresses, subnets, and gateways identifications

 

 

 

are automatically assigned if you are using the

 

 

 

Cisco Unified IP Phone with Dynamic Host

 

 

 

Configuration Protocol (DHCP). If you are not

 

 

 

using DHCP, you must manually assign these

 

 

 

properties to each phone locally.

 

 

 

Link Layer Discovery

LLDP is a standardized network discovery

The Cisco Unified IP Phone supports LLDP on the

Protocol (LLDP)

protocol (similar to CDP) that is supported

switch and PC port.

(Cisco Unified IP Phone

on some Cisco and third-party devices.

 

 

 

 

 

6911 only)

 

 

 

 

 

 

 

Link Layer Discovery

LLDP-MED is an extension of the LLDP

The Cisco Unified IP Phone supports LLDP-MED

Protocol-Media Endpoint

standard developed for voice products.

on the SW port to communicate information such as:

Devices (LLDP-MED)

 

Voice VLAN configuration

 

 

 

 

 

 

Device discovery

 

 

 

Power management

 

 

 

Inventory management

 

 

 

For more information about LLDP-MED support,

 

 

 

see the LLDP-MED and Cisco Discovery Protocol

 

 

 

white paper:

 

 

 

http://www.cisco.com/en/US/technologies/tk652/tk

 

 

 

701/technologies_white_paper0900aecd804cd46d.

 

 

 

html

 

 

 

Real-Time Transport

RTP is a standard protocol for transporting

Cisco Unified IP Phones use the RTP protocol to

Protocol (RTP)

 

real-time data, such as interactive voice

send and receive real-time voice traffic from other

 

 

and video, over data networks.

phones and gateways.

 

 

 

Real-Time Control

RTCP works in conjunction with RTP to

RTCP is disabled by default, but you can enable it

Protocol (RTCP)

provide QoS data (such as jitter, latency,

on a per phone basis by using Cisco Unified

 

 

and round trip delay) on RTP streams.

Communications Manager.

 

 

 

 

 

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

 

OL-23874-01

1-7

 

 

 

Page 19
Image 19
Cisco Systems 6901 manual Supporting 802.1X Authentication on Cisco, Unified IP Phones section on page 1-17for, Html

6901 specifications

Cisco Systems 6901 is a versatile, compact, and powerful router designed to meet the networking needs of small to medium-sized businesses, as well as enterprise branch offices. This model is part of Cisco's ISR (Integrated Services Router) portfolio, which is known for its capability to integrate multiple services into a single platform, ensuring high efficiency and cost-effectiveness.

One of the main features of the Cisco 6901 is its ability to support advanced routing protocols, including RIP, EIGRP, OSPF, and BGP. This versatility allows for seamless integration into various network architectures, facilitating efficient communication and data transfer across multiple locations. The device is also built to handle high-bandwidth applications, making it an ideal choice for businesses that rely on robust network performance.

In terms of connectivity, Cisco 6901 offers multiple Ethernet ports, supporting both 10/100/1000 Mbps speeds. This ensures that users can connect a variety of devices, ranging from office computers to network printers, all while maintaining optimal network performance. Additionally, the router supports both LAN and WAN interfaces, providing flexibility in deployment options.

Security is a crucial aspect of networking, and the Cisco 6901 does not disappoint in this regard. It comes equipped with advanced security features, including firewall capabilities, intrusion prevention, and VPN support. These features ensure that sensitive business data is protected from unauthorized access, while also providing secure remote access for employees.

Another essential characteristic of the Cisco 6901 is its support for various multimedia applications. The router comes with Quality of Service (QoS) features that prioritize voice, video, and data traffic, ensuring high-quality performance for applications such as VoIP and video conferencing. This is particularly valuable in today's business landscape, where effective communication is critical for success.

The Cisco 6901 is also designed for ease of management and configuration. It features a user-friendly interface that simplifies the setup process, along with comprehensive monitoring tools that enable administrators to keep an eye on network performance and address any issues proactively.

In summary, the Cisco Systems 6901 is a powerful, feature-rich router that combines advanced routing capabilities with robust security measures and multimedia support. Its flexibility, ease of management, and comprehensive service integration make it an excellent choice for businesses seeking to enhance their networking infrastructure. With the Cisco 6901, organizations can achieve efficient communication, secure data exchange, and high-performance network operations, positioning themselves well for future growth.