Piotr Pacyna | AGH University of Science and Technology (original) (raw)
Papers by Piotr Pacyna
Future telecommunication networks, and in particular networks beyond 3 rd Generation, will be bas... more Future telecommunication networks, and in particular networks beyond 3 rd Generation, will be based on an "all-IP" architecture. Issues such as Quality of Service (QoS), Mobility and Authentication, Authorisation, Accounting and Charging (AAAC), and their respective interoperation, must be handled in such scenarios. This paper describes a generic end-to-end QoS architecture and its relationship with the other networking components. This architecture is being developed inside the IST project Moby Dick.
Artykul omawia prace nad prototypowaniem i integracja podsystemu bezpieczenstwa Systemu IIP na po... more Artykul omawia prace nad prototypowaniem i integracja podsystemu bezpieczenstwa Systemu IIP na poziomie wirtualizacji zasobow sieciowych. Przedstawiono jego zakres funkcjonalny, sposob funkcjonowania w sieci badawczej PL-LAB oraz realizacje scenariusza ochrony danych przesylanych w Rownoleglym Internecie CAN.
Projekt Inzynieria Internetu Przyszlości (IIP) rozwija koncepcje infrastruktury transmisyjnej, st... more Projekt Inzynieria Internetu Przyszlości (IIP) rozwija koncepcje infrastruktury transmisyjnej, stanowiącej jednolity system komunikacyjny (System IIP) do obslugi strumieni danych pochodzących od trzech rodzajow sieci nazywanych Rownoleglymi Internetami. Architektura tego systemu obejmuje cztery poziomy, przy czym poziom 2 odpowiada za tworzenie i utrzymywanie lączy i wezlow wirtualnych. Niniejsze opracowanie przedstawia rozszerzony opis trzech linii obrony stanowiących architekture bezpieczenstwa dla tego systemu na poziomie 2, ktora zostala opracowana w celu przeciwdzialania atakom opartym na wprowadzaniu obcego ruchu sieciowego do Systemu IIP, a takze w celu przeciwdzialania manipulacji bądź falszowaniu ruchu uzytkowego i sygnalizacyjnego Systemu IIP. Przedstawiono wczesne doświadczenia z implementacji mechanizmow obronnych oraz omowiono wyniki testow przeprowadzonych w środowisku PL-LAB.
IEEE Communications Magazine, 2005
The book provides an in-depth study of present state and future of Mobile IP, a concept and proto... more The book provides an in-depth study of present state and future of Mobile IP, a concept and protocol that is a candidate building block of future IP-based mobility-enabled networks. This book is unique in that it provides an analysis of different aspects that need to be accounted for when considering Mobile IP. The reader will learn from the book the functions required to support mobility, and which of these can be achieved with Mobile IP and which have to be provided by other means. The author addresses numerous dependencies between Mobile IP and other protocol architectures that need to be in place, and provides guidance on how to tackle interworking. This is particularly important since individual solutions usually address the single problems for which they are devised. Building a complete system appears both difficult and challenging.
Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne, 2016
Artykul przedstawia koncepcje architektury bezpieczenstwa na poziomie wirtualizacji zasobow Syste... more Artykul przedstawia koncepcje architektury bezpieczenstwa na poziomie wirtualizacji zasobow Systemu IIP. Omawiane są trzy linie mechanizmow obronnych, w tym ochrona integralnosci informacji, wykrywanie anomalii i zasady pracy systemu budowania metryk zaufania wezlow wirtualnych.
STRESZCZENIE Niniejszy artykuł przybliża metody monitorowania i badania sieci Internet, pozwalają... more STRESZCZENIE Niniejszy artykuł przybliża metody monitorowania i badania sieci Internet, pozwalające na uzyskanie informacji o jego strukturze, operatorach i połączeniach. Przedstawiono projekty i metody wykorzystujące dane pomiaro-we z protokołu BGP, które umożliwiają nie tylko poznanie struktury sieci, lecz również obserwację dynamiki za-chodzących w niej zmian. Przydatność metod zilustrowano na przykładzie analizy struktury połączeń sieci ACK CYFRONET AGH z innymi operatorami. W trakcie dyskusji poruszono także najważniejsze problemy dotyczące rozwoju sieci Internet. ABSTRACT Evaluation of Internet Structure Based on Measurement Information from BGP protocol The paper presents methods for investigating topology of the contemporary Internet which jointly allow to learn its structure, discover operators and interconnections. The focus is on methods based on information available in BGP protocol which allows to learn dynamic properties of the Internet. Usability of the methods is pre...
Abstract. The paper describes the objectives of the European ACTS 1 project (AC362 „Broadband Tri... more Abstract. The paper describes the objectives of the European ACTS 1 project (AC362 „Broadband Trial Integration ” BTI). The project consortium consists of partners from Spain (Univ. Politecnica
There is a growing pressure raised by Internet users to extend the basic best-effort IP network a... more There is a growing pressure raised by Internet users to extend the basic best-effort IP network architecture to support QoS. At the same time there is need to increase accessibility of the IP service for residential users. Network designers, vendors of network products and application developers are cooperating in order to evaluate possible migration paths to meet the demand. This paper describes the objectives and preliminary results of the European ACTS Project AC362 „Broadband Trial Integration” (BTI) aiming at the deployment of advanced multimedia services in a hybrid ATM access network.
2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops, 2009
We propose procedures for autoconfiguration of multihop wireless ad-hoc networks based on DHCP pr... more We propose procedures for autoconfiguration of multihop wireless ad-hoc networks based on DHCP protocol. The proposed mechanism provides automatic address and radio parameters setup for nodes with multiple radio interfaces, allowing to fully automatically form and to start a wireless mesh network and to route packets. The autoconfiguration schema was implemented and tested on OpenWRT platform. The demonstration shows how multiple Mikrotik routerboard with three 802.11g interfaces can fully automatically create a multihop wireless network, assign IP addresses, radio channels. It will also include the automatic visualization of network topology by network management software.
2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops, 2009
We propose procedures for autoconfiguration of wireless mesh networks based on DHCP protocol. The... more We propose procedures for autoconfiguration of wireless mesh networks based on DHCP protocol. The proposed mechanism provides automatic address and radio parameters setup for nodes with multiple radio interfaces, allowing us to fully automatically form and to start a wireless mesh network, and to route packets. It supports mesh networks comprised of multiple IP subnets build with multiple networking technologies. Some performance issues of the autoconfiguration procedure are discussed. The autoconfiguration scheme was implemented and tested on OpenWRT platform.
Computer Communications, 2005
Network operators, service providers and customers are players who have different interests and r... more Network operators, service providers and customers are players who have different interests and raise different requirements on the functionality of future mobile communication networks. However, some new capabilities, such as mobility, security, ubiquity and quality are spelled out by all, which means that there exist some fundamental mechanisms which are in fact needed in every network. This paper concentrates on critical elements of the network infrastructure which need to be deployed in 4G networks before services can be offered. In the paper we discuss these elements, and show how they can be combined to satisfy versatile service requirements. Furthermore, the paper shows how to combine these mechanisms of three traditionally quite separate architectures-for Authentication, Authorisation, Accounting and Charging (AAAC), for Mobility (Mobile IP with Fast Handover), and Quality-of-Service (QoS). A technology-independent paging concept is also integrated in this system. The resulting integrated system architecture is general and can be deployed in heterogeneous environments. Our implementation has recently been completed, validated and verified with applications such as data transfer, voice-over-IP, video streaming and real time concurrent gaming. This prototypical implementation incorporates TD-CDMA, 802.11 WLANs and Ethernet, and treats all transmission technologies as physical and data-link layers, while higher-level functions are supported in a uniform way with an all-IPv6-based signalling.
This paper presents the current stage of an IP-based architecture for heterogeneous environments,... more This paper presents the current stage of an IP-based architecture for heterogeneous environments, covering UMTS-like W-CDMA wireless access technology, wireless and wired LANs, that is being developed under the aegis of the IST Moby Dick project. This architecture treats all transmission capabilities as basic physical and data-link layers, and attempts to replace all higher-level tasks by IP-based strategies. The proposed architecture incorporates aspects of mobile-IPv6, fast handover, AAA-control, and Quality of Service. The architecture allows for an optimised control on the radio link layer resources. The Moby dick architecture is currently under refinement for implementation on field trials. The services planned for trials are data transfer and voice-over-IP. 1.
Future telecommunication networks, and in particular networks beyond 3 rd Generation, will be bas... more Future telecommunication networks, and in particular networks beyond 3 rd Generation, will be based on an "all-IP" architecture. Issues such as Quality of Service (QoS), Mobility and Authentication, Authorisation, Accounting and Charging (AAAC), and their respective interoperation, must be handled in such scenarios. This paper describes a generic end-to-end QoS architecture and its relationship with the other networking components. This architecture is being developed inside the IST project Moby Dick.
Artykul omawia prace nad prototypowaniem i integracja podsystemu bezpieczenstwa Systemu IIP na po... more Artykul omawia prace nad prototypowaniem i integracja podsystemu bezpieczenstwa Systemu IIP na poziomie wirtualizacji zasobow sieciowych. Przedstawiono jego zakres funkcjonalny, sposob funkcjonowania w sieci badawczej PL-LAB oraz realizacje scenariusza ochrony danych przesylanych w Rownoleglym Internecie CAN.
Projekt Inzynieria Internetu Przyszlości (IIP) rozwija koncepcje infrastruktury transmisyjnej, st... more Projekt Inzynieria Internetu Przyszlości (IIP) rozwija koncepcje infrastruktury transmisyjnej, stanowiącej jednolity system komunikacyjny (System IIP) do obslugi strumieni danych pochodzących od trzech rodzajow sieci nazywanych Rownoleglymi Internetami. Architektura tego systemu obejmuje cztery poziomy, przy czym poziom 2 odpowiada za tworzenie i utrzymywanie lączy i wezlow wirtualnych. Niniejsze opracowanie przedstawia rozszerzony opis trzech linii obrony stanowiących architekture bezpieczenstwa dla tego systemu na poziomie 2, ktora zostala opracowana w celu przeciwdzialania atakom opartym na wprowadzaniu obcego ruchu sieciowego do Systemu IIP, a takze w celu przeciwdzialania manipulacji bądź falszowaniu ruchu uzytkowego i sygnalizacyjnego Systemu IIP. Przedstawiono wczesne doświadczenia z implementacji mechanizmow obronnych oraz omowiono wyniki testow przeprowadzonych w środowisku PL-LAB.
IEEE Communications Magazine, 2005
The book provides an in-depth study of present state and future of Mobile IP, a concept and proto... more The book provides an in-depth study of present state and future of Mobile IP, a concept and protocol that is a candidate building block of future IP-based mobility-enabled networks. This book is unique in that it provides an analysis of different aspects that need to be accounted for when considering Mobile IP. The reader will learn from the book the functions required to support mobility, and which of these can be achieved with Mobile IP and which have to be provided by other means. The author addresses numerous dependencies between Mobile IP and other protocol architectures that need to be in place, and provides guidance on how to tackle interworking. This is particularly important since individual solutions usually address the single problems for which they are devised. Building a complete system appears both difficult and challenging.
Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne, 2016
Artykul przedstawia koncepcje architektury bezpieczenstwa na poziomie wirtualizacji zasobow Syste... more Artykul przedstawia koncepcje architektury bezpieczenstwa na poziomie wirtualizacji zasobow Systemu IIP. Omawiane są trzy linie mechanizmow obronnych, w tym ochrona integralnosci informacji, wykrywanie anomalii i zasady pracy systemu budowania metryk zaufania wezlow wirtualnych.
STRESZCZENIE Niniejszy artykuł przybliża metody monitorowania i badania sieci Internet, pozwalają... more STRESZCZENIE Niniejszy artykuł przybliża metody monitorowania i badania sieci Internet, pozwalające na uzyskanie informacji o jego strukturze, operatorach i połączeniach. Przedstawiono projekty i metody wykorzystujące dane pomiaro-we z protokołu BGP, które umożliwiają nie tylko poznanie struktury sieci, lecz również obserwację dynamiki za-chodzących w niej zmian. Przydatność metod zilustrowano na przykładzie analizy struktury połączeń sieci ACK CYFRONET AGH z innymi operatorami. W trakcie dyskusji poruszono także najważniejsze problemy dotyczące rozwoju sieci Internet. ABSTRACT Evaluation of Internet Structure Based on Measurement Information from BGP protocol The paper presents methods for investigating topology of the contemporary Internet which jointly allow to learn its structure, discover operators and interconnections. The focus is on methods based on information available in BGP protocol which allows to learn dynamic properties of the Internet. Usability of the methods is pre...
Abstract. The paper describes the objectives of the European ACTS 1 project (AC362 „Broadband Tri... more Abstract. The paper describes the objectives of the European ACTS 1 project (AC362 „Broadband Trial Integration ” BTI). The project consortium consists of partners from Spain (Univ. Politecnica
There is a growing pressure raised by Internet users to extend the basic best-effort IP network a... more There is a growing pressure raised by Internet users to extend the basic best-effort IP network architecture to support QoS. At the same time there is need to increase accessibility of the IP service for residential users. Network designers, vendors of network products and application developers are cooperating in order to evaluate possible migration paths to meet the demand. This paper describes the objectives and preliminary results of the European ACTS Project AC362 „Broadband Trial Integration” (BTI) aiming at the deployment of advanced multimedia services in a hybrid ATM access network.
2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops, 2009
We propose procedures for autoconfiguration of multihop wireless ad-hoc networks based on DHCP pr... more We propose procedures for autoconfiguration of multihop wireless ad-hoc networks based on DHCP protocol. The proposed mechanism provides automatic address and radio parameters setup for nodes with multiple radio interfaces, allowing to fully automatically form and to start a wireless mesh network and to route packets. The autoconfiguration schema was implemented and tested on OpenWRT platform. The demonstration shows how multiple Mikrotik routerboard with three 802.11g interfaces can fully automatically create a multihop wireless network, assign IP addresses, radio channels. It will also include the automatic visualization of network topology by network management software.
2009 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops, 2009
We propose procedures for autoconfiguration of wireless mesh networks based on DHCP protocol. The... more We propose procedures for autoconfiguration of wireless mesh networks based on DHCP protocol. The proposed mechanism provides automatic address and radio parameters setup for nodes with multiple radio interfaces, allowing us to fully automatically form and to start a wireless mesh network, and to route packets. It supports mesh networks comprised of multiple IP subnets build with multiple networking technologies. Some performance issues of the autoconfiguration procedure are discussed. The autoconfiguration scheme was implemented and tested on OpenWRT platform.
Computer Communications, 2005
Network operators, service providers and customers are players who have different interests and r... more Network operators, service providers and customers are players who have different interests and raise different requirements on the functionality of future mobile communication networks. However, some new capabilities, such as mobility, security, ubiquity and quality are spelled out by all, which means that there exist some fundamental mechanisms which are in fact needed in every network. This paper concentrates on critical elements of the network infrastructure which need to be deployed in 4G networks before services can be offered. In the paper we discuss these elements, and show how they can be combined to satisfy versatile service requirements. Furthermore, the paper shows how to combine these mechanisms of three traditionally quite separate architectures-for Authentication, Authorisation, Accounting and Charging (AAAC), for Mobility (Mobile IP with Fast Handover), and Quality-of-Service (QoS). A technology-independent paging concept is also integrated in this system. The resulting integrated system architecture is general and can be deployed in heterogeneous environments. Our implementation has recently been completed, validated and verified with applications such as data transfer, voice-over-IP, video streaming and real time concurrent gaming. This prototypical implementation incorporates TD-CDMA, 802.11 WLANs and Ethernet, and treats all transmission technologies as physical and data-link layers, while higher-level functions are supported in a uniform way with an all-IPv6-based signalling.
This paper presents the current stage of an IP-based architecture for heterogeneous environments,... more This paper presents the current stage of an IP-based architecture for heterogeneous environments, covering UMTS-like W-CDMA wireless access technology, wireless and wired LANs, that is being developed under the aegis of the IST Moby Dick project. This architecture treats all transmission capabilities as basic physical and data-link layers, and attempts to replace all higher-level tasks by IP-based strategies. The proposed architecture incorporates aspects of mobile-IPv6, fast handover, AAA-control, and Quality of Service. The architecture allows for an optimised control on the radio link layer resources. The Moby dick architecture is currently under refinement for implementation on field trials. The services planned for trials are data transfer and voice-over-IP. 1.