CE-100T-8 Ethernet Features, 16-2 | Cisco Systems specification

Chapter 16 CE-100T-8 Ethernet Operation

CE-100T-8 Ethernet Features

The CE-100T-8 card supports ITU-T G.707 and Telcordia GR-253 based standards for SONET. It offers

acarrier-class level of features and reliability. This includes errorless (0-msec impact on traffic) reprovisioning. When circuit or port provisioning takes place, this operation does not affect the performance of other ports and circuit configurations that are already established on the card.

Software upgrades are errorless. However when the CE-100T-8 firmware is upgraded, the upgrade has an effect on traffic similar to the effect of a hard reset on the CE-100T-8. A software upgrade or a firmware upgrade does not affect the existing provisioning of the ports and circuits on the CE-100T-8 card.

Span upgrades are hitless. Protection and maintenance switches are also hitless.

The CE-100T-8 offers full TL1-based provisioning capability. Refer to the Cisco ONS SONET TL1 Command Guide for CE-100T-8 TL1 provisioning commands.

CE-100T-8 Ethernet Features

The CE-100T-8 card has eight front-end Ethernet ports which use standard RJ-45 connectors for 10BASE-T Ethernet/100BASE-TX Ethernet media. Ethernet Ports 1 through 8 each map to a POS port with a corresponding number. The console port on the CE-100T-8 card is not functional.

The CE-100T-8 cards forward valid Ethernet frames unmodified over the SONET network. Information in the headers is not affected by the encapsulation and transport. For example, included IEEE 802.1Q information will travel through the process unaffected.

The ONS 15454 CE-100T-8 and the ONS 15310 CE-100T-8 support maximum Ethernet frame sizes of 1600 bytes including the CRC. The MTU size is not configureable and is set at a 1500 byte maximum (standard Ethernet MTU). Baby giant frames in which the standard Ethernet frame is augmented by

802.1Q tags or MPLS tags are also supported. Full Jumbo frames (9000 byte maximum) are not supported.

The CE-100T-8 cards discard certain types of erroneous Ethernet frames rather than transport them over SONET. Erroneous Ethernet frames include corrupted frames with cyclic redundancy check (CRC) errors and undersized frames that do not conform to the minimum 64-byte length Ethernet standard.

Note Many Ethernet attributes are also available through the network element default feature. For more information on NE defaults, refer to the "Network Element Defaults" appendix in the Cisco ONS 15454 Reference Manual.

Autonegotiation, Flow Control, and Frame Buffering

On the CE-100T-8, Ethernet link autonegotiation is on by default. The user can also set the link speed, duplex, and flow control manually under the card-level Provisioning tab of CTC.

The CE-100T-8 supports IEEE 802.3x flow control and frame buffering to reduce data traffic congestion. Flow control is on by default.

To prevent over-subscription, buffer memory is available for each port. When the buffer memory on the Ethernet port nears capacity, the CE-100T-8 uses IEEE 802.3x flow control to transmit a pause frame to the attached Ethernet device. Flow control and autonegotiation frames are local to the Fast Ethernet interfaces and the attached Ethernet devices. These frames do not continue through the POS ports.

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

16-2	June 2005

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.