OPN01-6: Enabling Security Countermeasure and Service Restoration in Passive Optical Networks

Abstract

In this paper, we introduce a novel passive and wavelength selective remote node specifically designed to enable security countermeasure in PONs. The central office could physically isolate problem makers from the network without disrupting regular links by issuing a wavelength specific control signal to this device. With its wavelength selective nature, the countermeasure-enabled passive device is also a natural candidate to a WDM-PON remote node. To demonstrate its feasibility, a discrete version of the device is implemented. In addition to enable countermeasure capability, a new kind of PON restoration technique that employs a hybrid optical-wireless network is proposed. Finally, cost and performance considerations are discussed in an 8-channel planer lightwave circuit example.Keywords-Passive optical network, security, survivability, planar lightwave circuit, hybrid optical and wireless network.

TDM-PON Security Issues: Upstream Encryption is Needed

“…Since the network is passive, it is quite hard to discover the problematic ONU and disable it or its connection port. Some mechanisms have been proposed to effectively identify the attacker and/or disconnect it from the network [3,4].…”

Photonic devices for next-generation broadband fiber access networks

“…In instances such as a malicious attack or even only a malfunction ONU, countermeasure is the only mean that can protect the operation of other normal ONUs. An effective countermeasure system based on a passive and remotely configurable device was proposed in [3] (Fig.4). The proof-of-concept system is realized using a specialty fiber that is concatenated with carbon-coated TeO 2 segments that are susceptible to high laser power.…”

Estudo de topologias para redes WDM-PON

“…A transmissão contínua do laser pode ter como razão um defeito no dispositivo ou até mesmo uma alteração intencional deste dispositivo. Devido à natureza passiva da rede, a identificação da ONU problemática é difícil e alguns mecanismos têm sido propostos para identificação ou desconexão destas ONUs [31]- [32].…”