MPLS
... 1. Traffic Engineering refers to the ability to control where traffic flows in a network, with the goal of reducing congestion and getting the most use out of the available facilities. a way of managing traffic and link utilization in a routed network. ...
... 1. Traffic Engineering refers to the ability to control where traffic flows in a network, with the goal of reducing congestion and getting the most use out of the available facilities. a way of managing traffic and link utilization in a routed network. ...
File
... •In this method, station that wants to transmit data continuously sense the Channel to check whether the channel is idle or busy. •If the channel is busy , the station waits until it becomes idle. •When the station detects an idle channel, it immediately transmits the frame with probability 1. Hence ...
... •In this method, station that wants to transmit data continuously sense the Channel to check whether the channel is idle or busy. •If the channel is busy , the station waits until it becomes idle. •When the station detects an idle channel, it immediately transmits the frame with probability 1. Hence ...
Chapter 4: outline
... Checksum must be recomputed and stored again at each router as TTL and some options fields may change. Router discard datagrams for which an error is detected. Checksum calculation: 1) Divide header into 16-bit sections – checksum field itself is set to 0 2) Sum all sections using 1s comp ...
... Checksum must be recomputed and stored again at each router as TTL and some options fields may change. Router discard datagrams for which an error is detected. Checksum calculation: 1) Divide header into 16-bit sections – checksum field itself is set to 0 2) Sum all sections using 1s comp ...
Transport Layer and Security Protocols for Ad Hoc Wireless Networks
... TCP Over Ad Hoc Wireless Network Ad Hoc TCP (ATCP) • uses a network layer feedback mechanism to make the TCP sender aware of the status of the network path • Based on the feedback information received from the intermediate nodes, the TCP sender changes its state to the persist state, congestion c ...
... TCP Over Ad Hoc Wireless Network Ad Hoc TCP (ATCP) • uses a network layer feedback mechanism to make the TCP sender aware of the status of the network path • Based on the feedback information received from the intermediate nodes, the TCP sender changes its state to the persist state, congestion c ...
IP: Adressing, ARP, and Routing
... When all machines receive the ARP request broadcast, they can store the address mapping in their cache. Do they? ARP is used when an IP to physical address mapping changes to notify hosts on the network of the change ARP messages are encapsulated in MAC frames. A special value in the type field of t ...
... When all machines receive the ARP request broadcast, they can store the address mapping in their cache. Do they? ARP is used when an IP to physical address mapping changes to notify hosts on the network of the change ARP messages are encapsulated in MAC frames. A special value in the type field of t ...
Communications
... – Assumes that communications are contention-free and do not interfere with each other. – A consequence is that a node may communicate with an unlimited number of nodes without any degradation in performance. – Would require a clique interconnection network to fully support. – May simplify proofs th ...
... – Assumes that communications are contention-free and do not interfere with each other. – A consequence is that a node may communicate with an unlimited number of nodes without any degradation in performance. – Would require a clique interconnection network to fully support. – May simplify proofs th ...
Network Layer
... Chapter 4 roadmap 4.1 Introduction and Network Service Models 4.2 Routing Principles 4.3 The Internet (IP) Protocol 4.4 Routing in the Internet 4.5 IPv6 4.6 Mobility (Section 6.5/6.6 in textbook) ...
... Chapter 4 roadmap 4.1 Introduction and Network Service Models 4.2 Routing Principles 4.3 The Internet (IP) Protocol 4.4 Routing in the Internet 4.5 IPv6 4.6 Mobility (Section 6.5/6.6 in textbook) ...
Inter and intra AS, RIP - Cornell Computer Science
... ❒ Many have nothing to do with link-state vs distance ...
... ❒ Many have nothing to do with link-state vs distance ...
Network Topology
... o Moderate Reliability o Moderate performance A shared link is used between different stations. Hence it is very cost effective. One can easily add any new node or delete any node without affecting other nodes; this makes this topology easily expandable. Because of the shared medium, it is necessary ...
... o Moderate Reliability o Moderate performance A shared link is used between different stations. Hence it is very cost effective. One can easily add any new node or delete any node without affecting other nodes; this makes this topology easily expandable. Because of the shared medium, it is necessary ...
SONET Overview Randy Eisenach FNTS System
... FW4100 ES supporting current T1 TDM backhaul LTE requirements for Ethernet backhaul transport • Install Ethernet cards ...
... FW4100 ES supporting current T1 TDM backhaul LTE requirements for Ethernet backhaul transport • Install Ethernet cards ...
3.1 Introduction to ARP
... 3.4 ARP Related Issues • ARP requests contain the device's IP/physical address pair, so the destination host and other hosts on the physical network can note them in their tables. • ARP cache to reduce ARP broadcast (high cost because all hosts need to process). Entries in the cache can be updated. ...
... 3.4 ARP Related Issues • ARP requests contain the device's IP/physical address pair, so the destination host and other hosts on the physical network can note them in their tables. • ARP cache to reduce ARP broadcast (high cost because all hosts need to process). Entries in the cache can be updated. ...
Error Probability Bounds for Balanced Binary Relay Trees
... consumption can be reduced by setting up a directed tree, rooted at the fusion center. In this tree structure, measurements are summarized by leaf sensor nodes and sent to their parent nodes, each of which fuses all the messages it receives with its own measurement (if any) and then forwards the new ...
... consumption can be reduced by setting up a directed tree, rooted at the fusion center. In this tree structure, measurements are summarized by leaf sensor nodes and sent to their parent nodes, each of which fuses all the messages it receives with its own measurement (if any) and then forwards the new ...
Slide 1
... Network topology defines the structure of the network. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. The other part is the logical topology,which defines how the media is accessed by the hosts for sending data. ...
... Network topology defines the structure of the network. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. The other part is the logical topology,which defines how the media is accessed by the hosts for sending data. ...
present - CSE, IIT Bombay
... User is talking with a friend on gtalk and it disconnects User is browsing web but the browsing speed is very slow ...
... User is talking with a friend on gtalk and it disconnects User is browsing web but the browsing speed is very slow ...
Routing I (1.7 MB, PPT)
... • Internet (TCP/IP) – Routing tables often large – Can be updated frequently ...
... • Internet (TCP/IP) – Routing tables often large – Can be updated frequently ...
Multi-Protocol Label Switch (MPLS)
... packets are assigned a "label" by a "label edge router (LER)". Packets are forwarded along a "label switch path (LSP)" where each "label switch router (LSR)" makes forwarding decisions based solely on the contents of the label. At each hop, the LSR strips off the existing label and applies a new lab ...
... packets are assigned a "label" by a "label edge router (LER)". Packets are forwarded along a "label switch path (LSP)" where each "label switch router (LSR)" makes forwarding decisions based solely on the contents of the label. At each hop, the LSR strips off the existing label and applies a new lab ...
paper
... In the MAC frame control header of the transmitted frame, a reserved bit can indicate whether the current packet is coded. With coding, redundant packets can be added to compensate for potential losses. As discussed in (Shi et al., 2011), a reasonable level of redundancy can be computed heuristicall ...
... In the MAC frame control header of the transmitted frame, a reserved bit can indicate whether the current packet is coded. With coding, redundant packets can be added to compensate for potential losses. As discussed in (Shi et al., 2011), a reasonable level of redundancy can be computed heuristicall ...
Network layer
... address format: a.b.c.d/x, where x is # bits in network portion of address network part ...
... address format: a.b.c.d/x, where x is # bits in network portion of address network part ...
CS514: Intermediate Course in Operating Systems
... The router’s IP forwarding process looks at the destination IP address, determines what the next hop is, and hands the packet to the appropriate link layer with the appropriate next hop link address. ...
... The router’s IP forwarding process looks at the destination IP address, determines what the next hop is, and hands the packet to the appropriate link layer with the appropriate next hop link address. ...
SCRIBE: A large-scale and decentralised application-level multicast infrastructure
... the root of the multicast tree created for the group. To create a group, a Scribe node asks Pastry to route a CREATE message using the groupId as the key (e.g. route(CREATE,groupId)). Pastry delivers this message to the node with the nodeId numerically closest to groupId. The Scribe deliver method a ...
... the root of the multicast tree created for the group. To create a group, a Scribe node asks Pastry to route a CREATE message using the groupId as the key (e.g. route(CREATE,groupId)). Pastry delivers this message to the node with the nodeId numerically closest to groupId. The Scribe deliver method a ...
CPS221 Lecture: The Network Layer last revised 10/9/2014
... A. One of the major responsibilities of the network layer is end-to-end routing of packets. (This contrasts with the link layer, which is only responsible for getting a packet to a neighbor to which it is physically connected.) This is, of course governed by the IP of the destination system. B. Ther ...
... A. One of the major responsibilities of the network layer is end-to-end routing of packets. (This contrasts with the link layer, which is only responsible for getting a packet to a neighbor to which it is physically connected.) This is, of course governed by the IP of the destination system. B. Ther ...
IPV6 - Workshops
... Process Router Solicitations (RS): Routers listen for solicitation messages and when one is received, immediately send the RA to requestor. ...
... Process Router Solicitations (RS): Routers listen for solicitation messages and when one is received, immediately send the RA to requestor. ...
CCNA Fast Track - K C Communications
... Therefore the largest Ethernet frame size should be 1518 bytes and the minimum frame size should be 64 bytes in order to stay within the Ethernet specification and be able to detect a collision. The frame size was extended to 1522 bytes by a IEEE 802.3 committee workgroup (802.3ac) to support VLAN t ...
... Therefore the largest Ethernet frame size should be 1518 bytes and the minimum frame size should be 64 bytes in order to stay within the Ethernet specification and be able to detect a collision. The frame size was extended to 1522 bytes by a IEEE 802.3 committee workgroup (802.3ac) to support VLAN t ...