Chapter 16 CE-100T-8 Ethernet Operation

CE-100T-8 Ethernet Features

Table 16-2 CoS Priority Queue Mappings

CoS Setting in CTC

CoS Values Sent to Priority Queue

 

 

7 (default)

none

 

 

6

7

 

 

5

6, 7

 

 

4

5, 6, 7

 

 

3

4, 5, 6, 7

 

 

2

3, 4, 5, 6, 7

 

 

1

2, 3, 4, 5, 6, 7

 

 

0

1, 2, 3, 4, 5, 6, 7

 

 

Ethernet frames without VLAN tagging use ToS-based priority queueing if both ToS and CoS priority queueing is active on the card. The CE-100T-8 card’s ToS setting must be lower than 255 (default) and the CoS setting lower than 7 (default) for CoS and ToS priority queueing to be active. A ToS setting of 255 (default) disables ToS priority queueing, so in this case the CoS setting would be used.

Ethernet frames with VLAN tagging use CoS-based priority queueing if both ToS and CoS are active on the card. The ToS setting is ignored. CoS based priority queueing is disabled if the CoS setting is the 7 (default), so in this case the ToS setting would be used.

If the CE-100T-8 card’s ToS setting is 255 (default) and the CoS setting is 7 (default), priority queueing is not active on the card, and data gets sent to the default normal traffic queue. Also if data is not tagged with a ToS value or a CoS value before it enters the CE-100T-8 card, it gets sent to the default normal traffic queue.

Note Priority queuing has no effect when flow control is enabled (default) on the CE-100T-8. Under flow control a 6 kilobyte single-priority first in first out (FIFO) buffer fills, then a PAUSE frame is sent. This results in the packet ordering priority becoming the responsibility of the external device, which is buffering as a result of receiving the PAUSE flow-control frames.

Note Priority queuing has no effect when the CE-100T-8 is provisioned with STS-3C circuits. The STS-3c circuit has more data capacity than Fast Ethernet, so CE-100T-8 buffering is not needed. Priority queuing only takes effect when buffering occurs.

RMON and SNMP Support

The CE-100T-8 card features remote monitoring (RMON) that allows network operators to monitor the health of the network with a network management system (NMS). The CE-100T-8 uses the ONG RMON. The ONG RMON contains the statistics, history, alarms, and events MIB groups from the standard RMON MIB, as well as Simple Network Management Protocol (SNMP). A user can access RMON

threshold provisioning through TL1 or CTC. For RMON threshold provisioning with CTC, see the Cisco ONS 15310-CL Procedure Guide and the Cisco ONS 15310-CL Troubleshooting Guide. For TL1 information, see the Cisco ONS SONET TL1 Command Guide.

Cisco ONS 15310-CL Ethernet Card Software Feature and Configuration Guide, R5.0

 

June 2005

16-5

 

 

 

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Cisco Systems CE-100T-8 specifications Rmon and Snmp Support, 16-5
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CE-100T-8 specifications

The Cisco Systems CE-100T-8 is a powerful edge device designed primarily for service provider and enterprise applications. This compact yet robust appliance combines high performance with advanced features for various networking needs, making it a suitable choice for modern networks.

One of the standout characteristics of the CE-100T-8 is its scalability. The device can handle multiple high-throughput applications simultaneously, providing a flexible solution for both small and large networks. With its support for various interfaces, including Ethernet and fiber, it can seamlessly integrate into existing infrastructures, backing the transition towards more advanced networking technologies.

The CE-100T-8 comes with eight Gigabit Ethernet ports, providing ample connectivity options for devices and services. This feature is vital for businesses that require consistent and speedy communication across their networks. The device also incorporates advanced routing capabilities through Cisco's IOS software, offering traditional and advanced routing protocols. This ensures that data is efficiently directed across the network, which is crucial for optimizing performance and reducing latency.

Security is an essential consideration for any networking device, and the CE-100T-8 does not disappoint. It offers built-in security features such as firewall capabilities, intrusion detection, and prevention systems, ensuring that the network remains protected against threats and vulnerabilities. Additionally, the device supports secure connections via Virtual Private Networks (VPNs), further enhancing the security measures available to users.

The CE-100T-8 also supports advanced Quality of Service (QoS) protocols, allowing businesses to prioritize critical traffic and ensure that essential services receive the necessary bandwidth. This can significantly improve the performance of applications such as VoIP and real-time video streaming, making it easier for organizations to adopt digital communication tools.

Moreover, Cisco has integrated management and monitoring features into the CE-100T-8, allowing IT administrators to oversee and manage their networks effectively. This includes features such as Cisco Prime, which provides a robust interface for centralized management, making it easier to configure, monitor, and troubleshoot the device.

In conclusion, the Cisco Systems CE-100T-8 is a versatile and capable network edge device that combines advanced features, robust security, and scalability. Its high-performance capabilities, coupled with Cisco's reputation for reliability and innovation, make it an ideal choice for enterprises looking to enhance their networking infrastructure.
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