monitoring trouble shooting and network optimization

... to joint optimization problems that are often dicult to handle It istherefore important to have a thorough understanding of the properties ofinterference, and the structure of the optimization ... Trang 382.4 Standard Interference Functions and Power Control 253) Let IJ be dened as in (2.24) Then J is a standard interference functionif and only if IJ fullls A1, A2, A3, and for all p ... 235 Trang 14Introduction A fundamental problem in the analysis and optimization of multi-user nication networks is that of modeling and optimizing performance tradeos.Tradeos occur when users...

Ngày tải lên: 29/05/2014, 16:52

... s r.o Troubleshooting guide Compact Controller for Stand-by and Parallel Operating Gen-sets Software version IG-6.2, IS-3.4, August 2005 Trang 2Table of Contents Table of Contents 2 Troubles ... The IG and/or IS and /or InteliMains are reset continuously The software in controllers and/or InteliMains is not compatible In standard software branch the compatible versions are IG 5.6 and later, ... compatible versions are IG 5.6 and later, IS 2.7 and later IM5.1 and later For other sw branch, please contact your distributor Trang 10Troubleshooting Guide, ©ComAp – August 2005 - 10 What is...

Ngày tải lên: 06/06/2014, 10:53

... Trang 1NETWORK STORAGE SYSTEM SIMULATION AND PERFORMANCE OPTIMIZATION WANG CHAOYANG NATIONAL UNIVERSITY OF SINGAPORE 2005 Trang 2NETWORK STORAGE SYSTEM SIMULATION AND PERFORMANCE OPTIMIZATION ... Arbitration Process and Fairness Access Algorithm 25 3.3.3 Command Delay by Fairness Access Algorithm 27 29 3.4 Command-First Algorithm 3.4.1 Command-First FIFO 30 3.4.2 Command-First Arbitration ... model the I/O processing activities, namely Hosts, FC-SW network, Disk Array Controller and Cache, FC-AL Network, Disk Controller and Cache and HDA Center, as shown in Figure 2.3 adopted from the...

Ngày tải lên: 26/11/2015, 22:57

... chains storage data deduplication andredundancy elimination functions using SDN and achieves both storage space andnetwork bandwidth savings with low processing time and memory overhead Mobilededuplication ... file-based protocols such as NetworkFile System (NFS), Common Internet File System (CIFS), and Andrew File System(AFS) NAS is used in enterprise and home networks In home networks, NAS is mainlyused ... points on a network, and network-wide RE (or in-networkdeduplication), where deduplication runs on network routers In terms of deduplication time, deduplication is divided into inline and offlinededuplication...

Ngày tải lên: 04/03/2019, 13:42

... ƯU VÔ TUYẾN CHO CÁC MẠNG DI ĐỘNG THẾ HỆ MỚI ĐỀ TÀI: Reduce Drive Test Costs and Increase Effectiveness of 3G Network Optimization Hà Nội, tháng 05/2012 Giảng viên hướng dẫn TS Nguyễn Hải Đăng ... provision các cell lân cận - Các neighbor bỏ sót 2 Phát hiện việc chuyển giao qua lại (Ping Pong Handover) 3 Trễ lan truyền 4 Các quan hệ chuyển giao 5 Phân tích Ec/No 6 Phân bố và sử dụng RAB 7 ... khoảng cách truy cập (Access Distance) chỉ ra rằng có thể cách li nhanh chóng các trường hợp over- shooting mà những trường hợp này khó khăn để hình dung khi sử dụng phương pháp dựa trên Drive Test...

Ngày tải lên: 01/06/2022, 10:08

... focus on the process-to-OS and host-to-network interfaces There would be one detection engine for monitoring networkpackets, and a single detection engine per process for monitoring system calls ... on computer Trang 14systems and networks In order to provide the preventive ability, we intercept,monitor and possibly alter the interactions at the system call and network-packetinterfaces In ... control file and df for its associated data file The 3-digitnumber after cfA and dfA part of the file names will increment after every printcommand Thus, after a thousand print commands, the same...

Ngày tải lên: 19/10/2022, 01:48

... program and has been tested using previously published results and a large-scale realistic network optimization problem in Miami, Florida Trang 3Formulation of A TRN Optimization ProblemA TRN optimization ... transit route network solution space; (2) representation of transit route and network constraints; and (3) solution search schemes The methodology has been implemented as a computer program and has ... reality, transit demand may depend on transit sup-ply, thus TRN optimization ideally should be carried out in an iterative manner in a cycle of demand estimation and route network design A transit...

Ngày tải lên: 27/10/2022, 17:15

... Trang 1HANDS-ON ETHICAL HACKING AND NETWORK DEFENSELesson 10 Hacking Web Servers Trang 2 Collection Information  Describe ... Standard database access method developed by the SQL Access Group  ODBC interface allows an application to access  Data stored in a database management system  Any system that understands and ... representation of data types  A library of ODBC functions  Standard methods of connecting to and logging on to a DBMS 24 Trang 25OBJECT LINKING AND EMBEDDING DATABASE (OLE DB)  OLE DB is a set of interfaces...

Ngày tải lên: 17/09/2012, 10:44

... the operation and performance of turbines, and can cause dangerous hydropneumatic effects, such as noise and vibrations 1.4 Draft tube and tailrace Another challenge is to understand the hydrodynamic ... contracting and gives rise to new flow separation and thus to energy losses The formed vortices, which detach and disintegrate towards downstream, cause valve and pipe vibrations and give rise ... hydrodynamic flow configuration and the design of special hydraulic structures and devices, such as control discharge structures and valves to control the flow behavior and regulate the pressure are...

Ngày tải lên: 05/09/2013, 14:58

... of the hot and cold reservoirs are ωh and ωc, respectively, and the creation and annihilation operators of thermal phonons for hot and cold reservoirs are ˆbh + , ˆbh − , ˆbc + and ˆbc − , ... processes 1→2 and 3→4, there are no thermal coupling between working medium and heat reservoirs It is assumed that the required times of the processes 3→4 and 1→2 are τa and τb, respectively, and the ... spin-1/2 system, Qˆα+ and Qˆα are chosen to be the spin creation and annihilation operators: ˆ ˆ ˆ S+=S +iS and Sˆ−=Sˆx−iSˆy Substituting ˆS+ and ˆS− into equation (6) and using ⎡⎣S Sˆ ˆx,...

Ngày tải lên: 05/09/2013, 15:28

... RRC and NAS messages contain key information to perform network optimization and troubleshooting which results in the fact that when ciphering is active, traditional protocol analyzer and network ... core network is adopted from GSM and consists of two user traffic-dependent domains and several commonly used entities Traffic-dependent domains correspond to the GSM or GPRS core networks and handle: ... and identification, and handling different services Thus the HLR contains GSM, GPRS, and UMTS subscriber information Two domains handle their traffic types at the same time for both the GSM and...

Ngày tải lên: 27/10/2014, 01:04

... research e interests include wideband CDMA systems, OFDM, channel coding, channel estimation, and MIMO systems Armando Soares graduated in telecommunication and computer science engineering at ... rate (BLER) and BER performance, taking into account channel estimation, interleaving, and decoding The system level simulator is needed to model a system with a large number of mobiles and base ... simulator where several estimates for coverage and throughput purposes can be made by populating the scenario topology uniformly and giving users a random mobility The estimates are made for every...

Ngày tải lên: 22/06/2014, 22:20

... and keep network costs to a minimum in order to make 3G services economical while still providing for network upgrades on demand Since the actual demand for 3G services is still unknown and network ... the RNC and ATM concentration in the network that results in savings in bandwidth and network costs Figure 1: TDM-based access network ECI Telecom Ltd Proprietary 11 DEPLOYING A 3G ACCESS NETWORK ... expenditure on leased bandwidth and radio frequencies, must be kept to a minimum, yet allowing these networks to provide for fast growth and cost-effective bandwidth increase 3G access networks are based...

Ngày tải lên: 19/04/2014, 19:07

... layer and the scheduling discipline on flow level This allows for accurate and time-efficient simulations of large UMTS networks System Description We consider a UMTS network where HSDPA and DCH ... statistical bandwidth sharing,” Computer Networks, vol 45, no 3, pp 319–332, 2004 [4] S Lu, V Bharghavan, and R Srikant, “Fair scheduling in wireless packet networks,” IEEE/ACM Transactions on Networking, ... shown in Figure Sharing Code and Power Resources between HSDPA and DCH A key issue of the radio resource management in HSDPA enhanced UMTS networks is the sharing of code and power resources between...

Ngày tải lên: 21/06/2014, 22:20

... Mode (ATM) backbone networks [50-55] With the convergence of mobile and fixed networks (backbone networks being shared by both mobile network and fixed network operators), the bandwidth provisioning ... (IMT-2000) [5] family of 3G standards UMTS covers standards for the wireless transmission and protocols, the core network architecture, services and systems aspects and mobile terminals UMTS supports ... most of the VoIP standards and QoS service models 12 Chapter 2: 2.4 Next-Generation UMTS Networks UMTS NETWORK The UMTS network forms the transport backbone for all voice and data traffic, regardless...

Ngày tải lên: 08/11/2015, 16:30

... TCP adapt bandwidth based on losses o Decouple the order of transmission and drop l RED (Random Early Discard) techniques – choose a packet randomly and drop it o Allows to share bandwidth l ... sources adhere to bandwidth requirements; Marking and Policing need to be done at the edges: Queue Management Principles for QOS Guarantees (more) o Alternative to Marking and Policing: allocate ... reserve resources to support the traffic l contract between the source and the network l – source: traffic description – network: QoS guarantee if the traffic conformsto the description – if the...

Ngày tải lên: 06/04/2013, 11:05

... phones, and controls handovers from BTS to BTS The BSC provides all the control functions and physical links between CHAPTER SHORT TECHNICAL OVERVIEW OF WIRELESS NETWORKS the MSC and BTS and BTS handles ... of Coding Schemes and the number of time slots, GPRS standards have stated 29 handset classes Two of the handset classes are typically implemented, class and class 10 A class handset can only use ... There are also three handset classes for devices Class A handsets are able to send or receive data and voice at the same time Class B handsets are able to send or receive data and voice but not at...

Ngày tải lên: 18/10/2013, 12:15

... Congestion and Error Control in Multicast Overlay Networks 4.1 Overlay Networks 4.2 QoS Routing in Overlay Networks 4.3 Multicast Overlay Networks ... extending their network infrastructures and resources to handle emerging applications and a growing number of users However, in order to enhance the performance of an operational network, traffic ... of overlay networks have emerged in the Internet The idea of overlay networks is not new Internet itself began as a data network overlaid on the public switched telephone network and even today,...

Ngày tải lên: 26/10/2013, 17:15

... Firewall commands used to implement the DHCP server feature are described in the dhcpd command page and the debug command page in the Cisco PIX Firewall Command Reference Refer to these command pages ... route static command Note The clear ip command can be also used to release and renew the DHCP lease, but this clears the configuration of every PIX Firewall interface Monitoring and Debugging the ... Firewall vpdn command The vpdn command is used to enable remote access protocols, such as L2TP, PPTP, and PPPoE To use the vpdn command, you first define a VPDN group and then create individual users...

Ngày tải lên: 27/10/2013, 07:15

... IPv6-enabled network devices via a variety of network management products to include DNS, DHCPv6, device management, and monitoring; and also network management, troubleshooting, and reporting ... 3750-acc-1 and 3750-acc-2 have been configured with the “dual-ipv4 -and- ipv6” SDM template using the sdm prefer dual-ipv4 -and- ipv6 default command For more information about the sdm prefer command and ... random-detect min-threshold wrr-queue random-detect min-threshold wrr-queue random-detect min-threshold wrr-queue random-detect max-threshold wrr-queue random-detect max-threshold wrr-queue random-detect...

Ngày tải lên: 21/12/2013, 06:16