Frame Relay and MPLS
... Similar to spoke and hub but some branch site will also have circuits to each other If two or more branch sites need to communicate to each other often a frame relay circuit is added directly between them ...
... Similar to spoke and hub but some branch site will also have circuits to each other If two or more branch sites need to communicate to each other often a frame relay circuit is added directly between them ...
PPT
... To update the controller of network events and changes to the switch state. sent without the controller soliciting them from a switch To tell controller a packet arrival, switch state change, or error Msg. types: Packet-in ,Flow-Removed , Port-status, Error ...
... To update the controller of network events and changes to the switch state. sent without the controller soliciting them from a switch To tell controller a packet arrival, switch state change, or error Msg. types: Packet-in ,Flow-Removed , Port-status, Error ...
Abstract obvious solutions, avoiding parallel processing of packets of
... trends indicate that network link speed approximately doubles every nine months [3, 4]. Thus, the network link speeds increase at a faster rate than the computing speed. The Internet itself is growing in size, resulting in the increase of routing tables sizes in backbone routers [5]. Consequently, t ...
... trends indicate that network link speed approximately doubles every nine months [3, 4]. Thus, the network link speeds increase at a faster rate than the computing speed. The Internet itself is growing in size, resulting in the increase of routing tables sizes in backbone routers [5]. Consequently, t ...
PPT
... Maximal Matching • A maximal matching is one in which each edge is added one at a time, and is not later removed from the matching. • i.e. no augmenting paths allowed (they remove edges added earlier). • No input and output are left unnecessarily idle. ...
... Maximal Matching • A maximal matching is one in which each edge is added one at a time, and is not later removed from the matching. • i.e. no augmenting paths allowed (they remove edges added earlier). • No input and output are left unnecessarily idle. ...
4121 Access Point 802.11b Ethernet-Speed Price-Performance Wireless Networking
... strategically placed throughout the enterprise are the wireless connectivity point to an Ethernet network, or the hub of a standalone wireless network. Operating in the 2.4 GHz band at speeds up to a fast 11 Mbps, Spectrum24 High Rate wireless connectivity mobilizes today’s fast-paced workforce with ...
... strategically placed throughout the enterprise are the wireless connectivity point to an Ethernet network, or the hub of a standalone wireless network. Operating in the 2.4 GHz band at speeds up to a fast 11 Mbps, Spectrum24 High Rate wireless connectivity mobilizes today’s fast-paced workforce with ...
CSC383 Lecture notes Ch 1 2 3
... An Important Observation If you examine the code for the echo client, you will find that it does not immediately read another line from the keyboard after reading data from the connection. This is because recv only returns as much data as it has actually read. The reason for this is that the unde ...
... An Important Observation If you examine the code for the echo client, you will find that it does not immediately read another line from the keyboard after reading data from the connection. This is because recv only returns as much data as it has actually read. The reason for this is that the unde ...
CHAPTER 3 Architectures for Distributed Systems
... • Processes interact by reading and modifying data in some shared source (passive or active) – Traditional database (passive): responds to requests ...
... • Processes interact by reading and modifying data in some shared source (passive or active) – Traditional database (passive): responds to requests ...
Security Signaling During Handovers
... • Handover techniques that assume concurrent radio usage cannot be used • Even for dual-radio devices it might make sense to reduce the security-related signaling, as it decreases the time that both radios need to be active and thus can increase battery life • In addition, handovers between networks ...
... • Handover techniques that assume concurrent radio usage cannot be used • Even for dual-radio devices it might make sense to reduce the security-related signaling, as it decreases the time that both radios need to be active and thus can increase battery life • In addition, handovers between networks ...
Anderson
... If an AS receives a new path, start using it right away Forward the path to neighbors, with a minimum intermessage interval • essential to prevent exponential message blowup Path eventually propagates in this fashion to all AS’s ...
... If an AS receives a new path, start using it right away Forward the path to neighbors, with a minimum intermessage interval • essential to prevent exponential message blowup Path eventually propagates in this fashion to all AS’s ...
Voice over Mobile IP
... (4) umass proxy sends INVITE to eurecom registrar. (5) eurecom registrar forwards INVITE to 197.87.54.21, which is running keith’s SIP client. (6-8) SIP response sent back (9) media sent directly between clients. Note: also a SIP ack message, which is not shown. ...
... (4) umass proxy sends INVITE to eurecom registrar. (5) eurecom registrar forwards INVITE to 197.87.54.21, which is running keith’s SIP client. (6-8) SIP response sent back (9) media sent directly between clients. Note: also a SIP ack message, which is not shown. ...
Chapter 3: Internetworking
... Datagram network has no connection establishment phase and each switch processes each packet independently Each arriving packet competes with all other packets for buffer space If there are no buffers, the incoming packet must be dropped ...
... Datagram network has no connection establishment phase and each switch processes each packet independently Each arriving packet competes with all other packets for buffer space If there are no buffers, the incoming packet must be dropped ...
Document
... Enhancement #2: Two Hops Forward • Same as previous rule, but remove the incoming link used to reach the node in question • Can cause more roundabout paths ...
... Enhancement #2: Two Hops Forward • Same as previous rule, but remove the incoming link used to reach the node in question • Can cause more roundabout paths ...
Snímek 1 - UNINETT Openwiki
... – L2 ping could be very useful – We have to use information obtained from other layers (L1,L3) – Unfortunately, there is no possibility to check connectivity on a VLAN – One option is to obtain some information from MIB, but it’s not sufficient • SPT/MSPT information • VLAN on interfaces ...
... – L2 ping could be very useful – We have to use information obtained from other layers (L1,L3) – Unfortunately, there is no possibility to check connectivity on a VLAN – One option is to obtain some information from MIB, but it’s not sufficient • SPT/MSPT information • VLAN on interfaces ...
Document
... •Supports theoretical data rates of upto 307 kbps, with generally experienced rates of 144 kbps • The newly introduced Q-PCH of CDMA 2000 enables the mobile to be informed about when it needs to monitor F-CCCH and the Paging Channel, thus improving on the battery life • Introduction of Radio Configu ...
... •Supports theoretical data rates of upto 307 kbps, with generally experienced rates of 144 kbps • The newly introduced Q-PCH of CDMA 2000 enables the mobile to be informed about when it needs to monitor F-CCCH and the Paging Channel, thus improving on the battery life • Introduction of Radio Configu ...
Wide Area Networks
... Erbium Doped Fibre Amplifiers (EDFA) few m's of Erbium doped fibre & pump laser wide bandwidth (100nm), relatively flat gain 1550 'C' band, 1585 'L' band, also 'S' band Raman amplification counter-propagating pump laser Improve S/N on long-haul links Amplification introduces noise Nee ...
... Erbium Doped Fibre Amplifiers (EDFA) few m's of Erbium doped fibre & pump laser wide bandwidth (100nm), relatively flat gain 1550 'C' band, 1585 'L' band, also 'S' band Raman amplification counter-propagating pump laser Improve S/N on long-haul links Amplification introduces noise Nee ...
Lecture 1
... • Start delimiter has last 2 bits as 11 • Length of data field does not include any padding to get minimum size – In Ethernet II, is the Type field, value > 1500 • represents which memory buffer on dst it stored in = protocol of data field (IP = hex 0800) ...
... • Start delimiter has last 2 bits as 11 • Length of data field does not include any padding to get minimum size – In Ethernet II, is the Type field, value > 1500 • represents which memory buffer on dst it stored in = protocol of data field (IP = hex 0800) ...
Local area networks
... Thus, each time they receive a packet, they strip off the “layer 2” header (such as Ethernet), and then create a new “layer 2” header for the next hop to the next router (or destination). Routers often incorporate firewall functions. An example of a router’s operation is shown on the next slide. ...
... Thus, each time they receive a packet, they strip off the “layer 2” header (such as Ethernet), and then create a new “layer 2” header for the next hop to the next router (or destination). Routers often incorporate firewall functions. An example of a router’s operation is shown on the next slide. ...
Optical Wireless Communication using Digital Pulse
... Copper based (limited bandwidth)- Phone and data combine Availability, quality and data rate depend on proximity to service provider’s C.O. ...
... Copper based (limited bandwidth)- Phone and data combine Availability, quality and data rate depend on proximity to service provider’s C.O. ...