performance−related issues. The most common problems with NIC issues deal with speed and duplex configuration. Table 1 summarizes all possible settings of speed and duplex for FastEthernet NICs and switch ports.

Note: This section is only applicable for 10/100/1000 Mbps (1000BASE−T) NICs, and not 1000BASE−X NICs.

Table 1￿Autonegotiation Valid Configuration

Configuration

 

 

 

 

NIC

Configuration

 

Resulting

 

(Speed/Duplex)

Resulting NIC

 

Switch

Catalyst

Comments

 

 

 

(Speed/Duplex)

Speed/Duplex

Speed/Duplex

Assuming

 

 

 

 

 

 

maximum

AUTO

 

1000 Mbps,

1000 Mbps,

capability of

AUTO

Catalyst switch,

 

Full−duplex

Full−duplex

 

 

and NIC is

 

 

 

 

 

 

 

 

1000 Mbps,

 

 

 

 

full−duplex.

 

 

 

 

 

 

 

 

 

Link is

 

 

 

 

established, but

 

 

 

 

the switch does

 

 

 

 

not see any

 

 

 

 

autonegotiation

 

 

 

 

information

 

 

 

 

from NIC.

1000 Mbps,

 

 

 

Since Catalyst

 

 

 

switches

Full−duplex

 

1000 Mbps,

1000 Mbps,

AUTO

support only

 

Full−duplex

Full−duplex

 

 

full−duplex

 

 

 

 

 

 

 

 

operation with

 

 

 

 

1000 Mbps,

 

 

 

 

they default to

 

 

 

 

full−duplex,

 

 

 

 

and this

 

 

 

 

happens only

 

 

 

 

when operating

 

 

 

 

at 1000 Mbps.

 

 

 

 

 

 

 

 

 

Assuming

 

 

 

 

maximum

AUTO

1000 Mbps,

1000 Mbps,

1000 Mbps,

capability of

 

Full−duplex

Full−duplex

Full−duplex

NIC is 1000

 

 

 

 

Mbps,

 

 

 

 

full−duplex.

 

 

 

 

 

1000 Mbps,

 

 

 

 

Full−duplex

1000 Mbps,

1000 Mbps,

1000 Mbps,

Correct Manual

 

 

 

 

 

100 Mbps,

Full−duplex

Full−duplex

Full−duplex

Configuration

 

 

 

Neither side

Full−duplex

1000 Mbps,

No Link

No Link

establishes link,

 

Full−duplex

due to speed

 

 

 

 

 

 

 

mismatch

 

 

 

 

 

 

AUTO

 

 

 

 

 

 

 

 

Page 3
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Cisco Systems 17053 appendix Autonegotiation Valid Configuration

17053 specifications

Cisco Systems 17053 is a robust and versatile networking solution designed to meet the demands of modern data centers and enterprise environments. This device is part of Cisco's comprehensive portfolio of networking products, offering high performance, reliability, and scalability to help organizations enhance their connectivity and operational efficiency.

One of the main features of the Cisco 17053 is its support for advanced routing protocols, including OSPF, BGP, and EIGRP. These protocols enable seamless communication and data exchange across complex networks, ensuring that information is transmitted swiftly and effectively. This is particularly important for organizations that rely on real-time data and applications, such as financial services or online retail.

In addition to its routing capabilities, the Cisco 17053 boasts powerful security features. It provides robust firewall protection, VPN support, and advanced threat detection and mitigation mechanisms. These security measures help protect sensitive data from unauthorized access and cyber threats, ensuring that organizations can operate safely in today's increasingly interconnected world.

Moreover, the Cisco 17053 is equipped with advanced Quality of Service (QoS) functionalities. This feature allows network administrators to prioritize critical applications and ensure consistent performance even during times of high traffic. By managing bandwidth effectively, organizations can reduce latency and improve user experiences across various applications.

Scalability is another key characteristic of the Cisco 17053. The device can easily integrate into existing networks and expand as organizational needs grow. This modularity allows businesses to adapt their infrastructure without the need for a complete overhaul, saving time and resources.

Additionally, the Cisco 17053 supports various access technologies, including Ethernet and fiber connections, which provide flexibility in deployment. The device is designed to accommodate different network topologies, making it suitable for both small businesses and large enterprises.

Lastly, Cisco offers comprehensive support and services for the 17053, including training resources, technical support, and regular software updates. This dedication to customer service ensures that organizations can maximize their investment and stay ahead in an ever-evolving technological landscape.

In conclusion, the Cisco Systems 17053 is a feature-rich networking solution that combines advanced routing protocols, robust security measures, and exceptional scalability. With its ability to enhance network performance and offer comprehensive support, it stands out as a reliable choice for organizations looking to optimize their networking capabilities.