Switching
... • AAL 3/4 uses up too many bits of payload - Really just want to know when end of frame is. . . - Idea: Why not just co-opt one bit in 5-byte ATM header? ...
... • AAL 3/4 uses up too many bits of payload - Really just want to know when end of frame is. . . - Idea: Why not just co-opt one bit in 5-byte ATM header? ...
Module 4 - IIS Windows Server
... How do Switches and Bridges Filter Frames • Bridges are capable of filtering frames based on any Layer 2 fields • Bridge can be programmed to reject/not forward All frames sourced from a particular network Based on upper network layer protocols ...
... How do Switches and Bridges Filter Frames • Bridges are capable of filtering frames based on any Layer 2 fields • Bridge can be programmed to reject/not forward All frames sourced from a particular network Based on upper network layer protocols ...
ISDN - efreidoc.fr
... campus, the access layer generally incorporates switched LAN devices with ports that provide connectivity to workstations and servers. ...
... campus, the access layer generally incorporates switched LAN devices with ports that provide connectivity to workstations and servers. ...
ch13
... the bus, an NIU has to wait for the token to be passed around, even if no other NIU is attempting to access the bus. Thus, CSMA/CD is preferable under light loads. 13.17 (BL3) This is a research exercise, with a number of possible solutions. One viable solution is to use the Internet as a wide area ...
... the bus, an NIU has to wait for the token to be passed around, even if no other NIU is attempting to access the bus. Thus, CSMA/CD is preferable under light loads. 13.17 (BL3) This is a research exercise, with a number of possible solutions. One viable solution is to use the Internet as a wide area ...
Traffic Monitoring using sFlow
... Packet sampling has been used to monitor network traffic for over ten years (see Figure 1). HewlettPackard first demonstrated network-wide monitoring using packet sampling of the University of Geneva and CERN networks at Telecom ‘91. This was followed up with the introduction of networking products ...
... Packet sampling has been used to monitor network traffic for over ten years (see Figure 1). HewlettPackard first demonstrated network-wide monitoring using packet sampling of the University of Geneva and CERN networks at Telecom ‘91. This was followed up with the introduction of networking products ...
PPT - web.iiit.ac.in
... • Link layer devices – Stores and forwards Ethernet frames – Examines frame header and selectively forwards frame based on MAC dest address – When frame is to be forwarded on segment, uses CSMA/CD to access segment • Transparent – Hosts are unaware of presence of switches • Plug-and-play, self-learn ...
... • Link layer devices – Stores and forwards Ethernet frames – Examines frame header and selectively forwards frame based on MAC dest address – When frame is to be forwarded on segment, uses CSMA/CD to access segment • Transparent – Hosts are unaware of presence of switches • Plug-and-play, self-learn ...
TCP/IP architecture
... packet is not for itself) and determines the next hop based on destination IP address (i.e., routing) , this next hop router will be in another network (e.g. N2) 4. Network entity passes the IP packet down to the data link entity for N2 5. Data link entity for N2 encapsulates the IP packet in a fram ...
... packet is not for itself) and determines the next hop based on destination IP address (i.e., routing) , this next hop router will be in another network (e.g. N2) 4. Network entity passes the IP packet down to the data link entity for N2 5. Data link entity for N2 encapsulates the IP packet in a fram ...
Network Emulation - School of Computer Science
... • accuracy of protocol implementation • Live Testing – + very accurate model of the network – + no conversion of simulated applications needed – - low level of control (more difficult to create reproducible results) – - difficult to introduce new protocol behaviour other than end-to-end – - often ju ...
... • accuracy of protocol implementation • Live Testing – + very accurate model of the network – + no conversion of simulated applications needed – - low level of control (more difficult to create reproducible results) – - difficult to introduce new protocol behaviour other than end-to-end – - often ju ...
systems administrator - Laguna Beach Unified School District
... more than 40 pounds with assistance. Dexterity of hand and fingers to operate a computer keyboard. Vision: Must possess vision (which may be corrected) to read small print and computer screens. Speech and Hearing: Must possess hearing (which may be corrected) to use a telephone and to hear dis ...
... more than 40 pounds with assistance. Dexterity of hand and fingers to operate a computer keyboard. Vision: Must possess vision (which may be corrected) to read small print and computer screens. Speech and Hearing: Must possess hearing (which may be corrected) to use a telephone and to hear dis ...
Sweex Broadband Router + 4 ports 10/100 switch
... Supports DHCP Server/Client - Ideal for fast installation, user-friendly configuration (support for DHCP server/client support) 4 ports 10/100 Switch - Create a network and share the Internet with several users. Dial on Demand - the router automatically logs-in to the ISP when you start the browser. ...
... Supports DHCP Server/Client - Ideal for fast installation, user-friendly configuration (support for DHCP server/client support) 4 ports 10/100 Switch - Create a network and share the Internet with several users. Dial on Demand - the router automatically logs-in to the ISP when you start the browser. ...
ppt
... Few long lived flows Flow – set of data packets from source to destination Large percentage of packet traffic Improving forwarding performance by using virtual circuits for these flows ...
... Few long lived flows Flow – set of data packets from source to destination Large percentage of packet traffic Improving forwarding performance by using virtual circuits for these flows ...
(IS-IS) draft-li-isis-degradation-isolation-problem-00
... – the network error can not be isolated automatically – The error ratio of IP packets increases ...
... – the network error can not be isolated automatically – The error ratio of IP packets increases ...
Modem
... • data arrives on one port and is sent to all other ports • each hub can be connected to many network segments • boosts the network signal prior to retransmitting • not as intelligent as a switch ...
... • data arrives on one port and is sent to all other ports • each hub can be connected to many network segments • boosts the network signal prior to retransmitting • not as intelligent as a switch ...
Network Devices
... As an active hubs regenerate signals, it increases the distance that can be spanned by the LAN (up to 100 meters per segment). Hubs can also be connected locally to a maximum of two other hubs, thereby increasing the number of devices that can be attached to the LAN. Active hubs are usually used aga ...
... As an active hubs regenerate signals, it increases the distance that can be spanned by the LAN (up to 100 meters per segment). Hubs can also be connected locally to a maximum of two other hubs, thereby increasing the number of devices that can be attached to the LAN. Active hubs are usually used aga ...
IP Packet Switching COS 461: Computer Networks Spring 2008 (MW 1:30‐2:50 in COS 105) Mike Freedman
... IP Header: Checksum on the Header • Checksum (16 bits) – Sum of all 16‐bit words in the IP packet header – If any bits of the header are corrupted in transit – … the checksum won’t match at receiving host – Receiving host discards corrupted packets • Sending host will retransmit the pac ...
... IP Header: Checksum on the Header • Checksum (16 bits) – Sum of all 16‐bit words in the IP packet header – If any bits of the header are corrupted in transit – … the checksum won’t match at receiving host – Receiving host discards corrupted packets • Sending host will retransmit the pac ...
Chapter 07 slides
... Reliability is assured through the additional fields contained within the TCP header that offer flow control, acknowledgments of successful receipt of packets after error checking, retransmission of packets as required, and proper sequencing of packets ...
... Reliability is assured through the additional fields contained within the TCP header that offer flow control, acknowledgments of successful receipt of packets after error checking, retransmission of packets as required, and proper sequencing of packets ...
Lecture 18: Internet Protocol
... structure. (Half of the class B networks have less than 50 machines, nobody wants class C networks). – Allocating the remaining Class C network address space without enforcing the logical structure -- otherwise the ...
... structure. (Half of the class B networks have less than 50 machines, nobody wants class C networks). – Allocating the remaining Class C network address space without enforcing the logical structure -- otherwise the ...
AR G3 Series Enterprise Routers
... 5、The AR2200&3200 support redundant power supply units and fans. If one power supply unit or fan is faulty, the AR2200&3200 will still be able to operate. ...
... 5、The AR2200&3200 support redundant power supply units and fans. If one power supply unit or fan is faulty, the AR2200&3200 will still be able to operate. ...
Connecting a Computer/ Smartphone/Tablet to the Wireless Network
... how to get connected Your guide to preparing your computer for Internet access in the Residence Halls. ...
... how to get connected Your guide to preparing your computer for Internet access in the Residence Halls. ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.