Haidar Chamas

Evolution to a Converged Layer 1, 2 in a Global-Scale, Native Ethernet Over WDM-Based Optical Networking Architecture

There is an emerging wide interest to transition from legacy WAN transport technologies to Ethernet-based technology. The current round of carrier Ethernet standards will successfully equip service providers (SPs) with the required tools to provide carrier-grade scalability and to provision and engineer connection-oriented point-to-point (P2P) packet trunks across a native Ethernet infrastructure. Building on these standards, this paper demonstrates how to support and implement full traffic engineering in a global-scale, two-tiered native Ethernet-over-WDM optical networking architecture. To achieve these objectives, several networking innovations are presented and developed including: 1) a GMPLS-based unified control plane that offers a tighter integration between layer-1 (optical transport layer) and layer-2 (Ethernet layer), 2) a fully distributed integrated routing and signaling framework for dynamically provisioning Ethernet switched paths (ESPs) at any bandwidth granularity including both full wavelength and finer granularity (sub-lambda) ESPs in an integrated Ethernet-optical networking environment, and 3) a novel notion of an integrated link-state advertisements strategy that is consistent with a fully integrated routing and signaling protocol

Verizon experience with NG Ethernet services: evolution to a converged layer 1, 2 network

This article presents Verizons experience with deploying metro Ethernet services and some of our laboratory activities related to the convergence of layer 2/1 networks. Such convergence leverages the existing SONET and optical transport network infrastructure, and integrates layer 1 and layer 2 transport, control, and management planes within the network. Integrated service provisioning is featured, including service logic and policy that controls the admission, path selection, and transport bandwidth adjustment requirements of provisioning an Ethernet virtual connection within the metro Ethernet network.

A novel admission control scheme for Ethernet services

The paper proposes a novel scheme, admission control for Ethernet services (ACES), a centralized system that works with the Ethernet provisioning server and is used in conjunction with the multiple spanning trees protocol to control Ethernet virtual connection admission into the service provider network and to determine the most efficient path selection through the network.

A novel admission control system for bandwidth on demand Ethernet services over optical transport networks

A novel scheme used in conjunction with the multiple spanning trees protocol to control an Ethernet virtual connection admission into a service provider optical network with the most efficient path selection through the Ethernet layer-2 network.

Carrier Ethernet: A Reality Check

This paper provides a current assessment of Carrier Ethernet from a service provider perspective. It highlights the drivers and key attributes of Carrier Ethernet and discusses some remaining gaps and challenges.

On The Implementation of Traffic-Engineering in an "All-Ethernet Global Multi-Service Infrastructure"

This paper presents a signaling framework for supporting and implementing traffic engineering in an all Ethernet global multi-service infrastructure.

OPN08-05: Real-Time Provisioning of Diverse Granularity EVCs in an "All-Ethernet Global MultiService Infrastructure"

This paper devises and examines via computer simulation an innovative fully distributed global information- based integrated signaling framework for dynamically provisioning EVCs at any bandwidth granularity including both full wavelength and finer granularity (sub-lambda) EVCs at the optical layer.