wide area network wan settings

BACnet Wide Area Network Security Threat Assessment ppt

BACnet Wide Area Network Security Threat Assessment ppt

Ngày tải lên : 14/03/2014, 22:20
... Untrusted network IP LAN/ WAN SR/BBMD Trusted BCS network segment SD SD BACnet Wide Area Network ... can be implemented to increase network security. There are two primary types of IDS: network based and host-based. The network based system acts similarly to a network level firewall. It cannot ... information about the network con- figuration. Authentication, especially of exter- nal BACnet users. Network Layer Attacks I-Am-Router- To -Network The I-Am-Router-To -Network message can...
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Tổng quan về mạng WAN (Wide Area Netwwork) - Phần mềm Cool Chat

Tổng quan về mạng WAN (Wide Area Netwwork) - Phần mềm Cool Chat

Ngày tải lên : 27/04/2013, 22:04
... tố hết sức quan trọng. Giải pháp mạng WAN ( Wide Area Network - Mạng diện rộng ) được áp dụng. Chúng có nhiệm vụ kết hợp tất cả các mạng LAN (Local Area Network ) ở xa lại thành một mạng duy ... tốc độ cao và có độ tin cậy. Tất cả các máy trên mạng đều có những địa chỉ duy nhất khác nhau, WAN là các lớp mạng hợp lại và không có sự trùng lặp về địa chỉ và những địa chỉ đó chính là IP ... Hàng Công Thương Việt Nam đã có những giải pháp hữu hiệu trong công nghệ truyền dữ liệu trong WAN như : Đường Leased Line, Mạng X.25, CD, E1, đường cáp quang(Optical fiber) Đầu tư các trang...
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Describe wireless wide area networks (WWANs) and how they are used

Describe wireless wide area networks (WWANs) and how they are used

Ngày tải lên : 13/09/2012, 10:52
... 1xRTT ã Operates on two 1.25 MHz -wide frequency channels ã Supports 144 Kbps packet data transmission 2 Objectives ã Describe wireless wide area networks (WWANs) and how they are used ã Describe ... 16 2.5 Generation Cellular Telephony (continued) ã 2.5G network technologies General Packet Radio Service (GPRS) ã For TDMA or GSM 2G networks ã Uses eight time slots in a 200 KHz spectrum and ... Kbps for a slowly moving user – 2 Mbps for a stationary user ã 3G network technologies CDMA2000 1xEVDO ã For 2.5G CDMA2000 1xRTT networks 25 Binary Runtime Environment for Wireless (BREW) ã BREW...
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LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

Ngày tải lên : 25/04/2013, 11:58
... cấu hình native VLAN thì phải cấu hình ở giao diện vật lý. CHƯƠNG II LÝ THUYẾT VỀ MẠNG WAN (WIDE AREA NETWORK) I. KHÁI NIỆM : Là mạng được thiết lập để liên kết các máy tính của hai hay nhiều ... vị trí rất xa nhau, ví dụ như những quốc gia khác nhau, thì khi đó ta có mạng diện rộng WAN (Wide Area Network) Trang NGUYỄN ĐÌNH CÔNG – 36CLTH 2929 V./. CÁC CÔNG NGHỆ MẠNG LAN : 5.1. CÔNG NGHỆ ... WAN khác là nó có cơ chế kiểm tra lỗi tích hợp sẵn. Chọn X.25 nếu bạn phải sử dụng đường dây tương tự hay chất lượng đường dây không cao. X.25 là chuẩn của ITU-T cho truyền thông qua mạng WAN...
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Tài liệu cisco migration_Enterprise Branch Wide Area Application docx

Tài liệu cisco migration_Enterprise Branch Wide Area Application docx

Ngày tải lên : 10/12/2013, 16:15
... unoptimized. Branch WAN HA WAN high availability refers to availability of WAN connectivity between the branch and campus WAN edge. It includes redundancy and seamless failover WAN links if a primary ... encapsulation WAN optimization NME-WAE-302 NME-WAE-502 Network module WAAS network modules cannot be configured as a WAAS CM. Supported on the 2800 and 3800 ISR routers. Network management NM-NAM Network ... 2 Enterprise Branch Wide Area Application Services Design Guide (Version 1.1) OL-12945-01 Contents WAN Services—Generic Considerations 18 WAN Services—Branch 1 21 WAN Services—Branch 2 21 High...
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Tài liệu Enterprise Data Center Wide Area Application Services (WAAS) Design Guide pptx

Tài liệu Enterprise Data Center Wide Area Application Services (WAAS) Design Guide pptx

Ngày tải lên : 10/12/2013, 16:16
... End Network 12 Core Layer 13 Aggregation Layer 13 Access Layer 13 Back-End Network 14 SAN Core Layer 14 SAN Edge Layer 15 WAN Edge Component 15 19 Enterprise Data Center Wide Area ... entering the router 220572 WAN WAE WAE Out LAN-edge In LAN-edge Out WAN- edge Out WAN- edge In WAE In 34 Enterprise Data Center Wide Area Application Services (WAAS) Design Guide OL-12934-01 Design ... supports the storage area network (SAN) fabric and connectivity between servers and other storage devices, such as storage arrays and tape drives. Front End Network The front-end network contains...
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Tài liệu Wide Area Networks doc

Tài liệu Wide Area Networks doc

Ngày tải lên : 11/12/2013, 14:15
... FTP Packets are: Marked (colored) at ingress at network edge IP Precedence / Differentiated Services Code Point (DSCP) set Policed and shaped at the network edge Potentially discarded by Weighted ... Priority) WFQ Interface 3 33 3 2 2 4 3 2 1 1 VV 4 44 4 PQ WAN Circuit Exhaustive Queuing WFQ DLCI 3 33 3 2 L PQ - voice WFQ - Data 4 44 4 PQ WAN Circuit WFQ - Data WFQ - Data Interface High Low LMI 1 ... Systems Network Architecture (SNA)Delay sensitive. Encapsulated in TCP. ã OtherDelay insensitive, drop insensitive. Market Data is seen as the most important application. The customer does not want...
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Tài liệu Chapter11 Wide Area Networking Protocols pptx

Tài liệu Chapter11 Wide Area Networking Protocols pptx

Ngày tải lên : 21/12/2013, 05:18
... Chapter11 Wide Area Networking Protocols Introduction to Wide Area Networks WAN 是覆盖地理范围相对较为广阔的数据通信网络,它一般是利用公共载体(比如电信公司) 提供的设备进行传输 .WAN 技术运行在 OSI 的最下 3 层 广域网 (Wide Area Network, WAN) 的一些术语 ... 4.CO:连接用户到服务商交换环境网络的点,有时候 CO 也叫做 point of presence(POP) 5.toll network: Internet service provider(ISP)拥有,各种网络设备资源集合的网络 WAN Connection Types WAN 连接的一些类型,如下图: 如图: 1 为租用线路,有时候也叫专线或点对点连接.预先布置好的通信路径,该路径从客户端通过电 信公司的网络连接到远程网络.因为这样的通信线路通常是通过从电信公司租用而来,所以就 ... Mode,ATM):国际电信联盟电信标准委员会(ITU-T)制 定的信元(cell)中继续标准.ATM 使用固定长度的 53 字节长的信元方式进行传输,ATM 网络的 面向连接的 Cabling the Wide Area Network Cisco 的串行连接支持几乎所有类型的 WAN 服务.HDLC,PPP 和帧中继使用相同的物理层定 义的接口,但是和 ISDN 的不一样.我们先来回顾下 router 的接口类型: 1.局域网接口...
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Tài liệu Ethernet Access for Next Generation Metro and Wide Area Networks pptx

Tài liệu Ethernet Access for Next Generation Metro and Wide Area Networks pptx

Ngày tải lên : 21/12/2013, 06:15
... and Wide Area Networks OL-14760-01 Design Considerations ã Use of EIGRP stub areas eliminates queries to spoke routers. ã OSPF must periodically synchronize router databases within an area, ... Edge Provider Edge Customer Edge (CE) User Network Interface (UNI) Customer Premise Equipment (CPE) 34 Ethernet Access for Next Generation Metro and Wide Area Networks OL-14760-01 Scalability Considerations Table ... Access for Next Generation Metro and Wide Area Networks OL-14760-01 Design Requirements Figure 13 Commingled Dual-Tier Model This topology can be used for any WAN type (MPLS, Internet, SONET/SDH,...
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Tài liệu Deploying Cisco Wide Area Application Services potx

Tài liệu Deploying Cisco Wide Area Application Services potx

Ngày tải lên : 21/02/2014, 19:20
... due to network oversubscription. Network latency, another performance “problem child,” is the amount of time taken for data to traverse a network in between two communicating devices. Network ... with Firewall Switch Router/Switch Processor Multilayer Switch Firewall Services Module Wide- Area Application Engine Application Control Engine 16 Deploying Cisco Wide Area Application Services course, this number might increase ... exchanged between nodes on the network, so any latency found in the network also impacts the rate at which these control messages can be exchanged. 12 Deploying Cisco Wide Area Application Services and...
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Chapter 13 :Local Area Network Technology potx

Chapter 13 :Local Area Network Technology potx

Ngày tải lên : 06/03/2014, 09:21
... LANs ❚ Mobility ❚ Flexibility ❚ Hard to wire areas ❚ Reduced cost of wireless systems ❚ Improved performance of wireless systems William Stallings Data and Computer Communications Chapter 13 Local Area Network Technology ... transmitter ❙ Must satisfy these for all combinations of sending and receiving station on bus ❙ Usual to divide network into small segments ❙ Link segments with amplifies or repeaters Star Ring Architecture ❚ Feed ... Wireless LAN Applications ❚ LAN Extension ❚ Cross building interconnection ❚ Nomadic access ❚ Ad hoc networks ...
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CAN Controller Area Network docx

CAN Controller Area Network docx

Ngày tải lên : 18/03/2014, 06:20
... nodes )(2 drvcmpbusprop tttt     10/14/2012 28 10/14/2012 30 10/14/2012 1 CAN Controller Area Network 10/14/2012 33 Given: ã CPU oscillator frequency = 32 MHz ã Bit rate = 800 Kbps ã Prescaler= ... transmission of a message, a maximum of five consecutive bits may have the same polarity. ã The bit-stuff area in a CAN bus frame includes the SOF, Arbitration field, Control field, Data field and CRC...
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