ppt
... • In part explains the easy management • Some of the LAN protocols (e.g. ARP) rely on broadcast • Networking would be harder without ARP ...
... • In part explains the easy management • Some of the LAN protocols (e.g. ARP) rely on broadcast • Networking would be harder without ARP ...
Chapter 11 Interior Routing Protocols
... hosts plus routers connected to any included network • Backbone – contiguous collection of networks not contained in any area, their attached routers and routers belonging to multiple areas ...
... hosts plus routers connected to any included network • Backbone – contiguous collection of networks not contained in any area, their attached routers and routers belonging to multiple areas ...
Distance Vector Routing Protocols
... • A routing loop can create the following conditions: – Link bandwidth will be used for traffic looping back and forth between the routers in a loop. – A router's CPU will be strained due to looping packets. – A router's CPU will be burdened with useless packet forwarding that will negatively impact ...
... • A routing loop can create the following conditions: – Link bandwidth will be used for traffic looping back and forth between the routers in a loop. – A router's CPU will be strained due to looping packets. – A router's CPU will be burdened with useless packet forwarding that will negatively impact ...
ICMP (Internet Control Message Protocol)
... Header length -> not necessary since IPv6 header is fixed length Header checksum -> reduce processing time at each hop ID, Flag, Segmentation, Protocol, Options, Padding -> moved to “extended header” ...
... Header length -> not necessary since IPv6 header is fixed length Header checksum -> reduce processing time at each hop ID, Flag, Segmentation, Protocol, Options, Padding -> moved to “extended header” ...
Part I: Introduction - UMD Department of Computer Science
... if entry found for destination then forward the frame on interface indicated; else flood; /* forward on all but the interface on which the frame arrived*/ ...
... if entry found for destination then forward the frame on interface indicated; else flood; /* forward on all but the interface on which the frame arrived*/ ...
Unicast Routing Protocols
... • RIP – Routing Information Protocol – treats each network the same (assigns the same cost for each network) • OSPF – Open Shortest Path First protocol – assigns a cost for passing through a network based on the type of service required – routes through the network can have different cost – each rou ...
... • RIP – Routing Information Protocol – treats each network the same (assigns the same cost for each network) • OSPF – Open Shortest Path First protocol – assigns a cost for passing through a network based on the type of service required – routes through the network can have different cost – each rou ...
WISPCON-Keeping It Up 2 - Home
... So How Do I Do It? • Now for the routing side of the “Keeping It Up”session • Josh Easton, CTO Bella Mia, Inc. • Routing protocols used and why ...
... So How Do I Do It? • Now for the routing side of the “Keeping It Up”session • Josh Easton, CTO Bella Mia, Inc. • Routing protocols used and why ...
Chapter 4: Network Layer
... “smart” end systems need for guaranteed (computers) service can adapt, perform “dumb” end systems control, error recovery telephones simple inside network, complexity inside complexity at “edge” network many link types different characteristics uniform service difficult Network L ...
... “smart” end systems need for guaranteed (computers) service can adapt, perform “dumb” end systems control, error recovery telephones simple inside network, complexity inside complexity at “edge” network many link types different characteristics uniform service difficult Network L ...
Chapter 5
... to B, and A knows B’s IP address. Suppose B’s MAC address is not in A’s ARP table. A broadcasts ARP query packet, containing B's IP address all machines on LAN receive ARP query B receives ARP packet, replies to A with its (B's) MAC address ...
... to B, and A knows B’s IP address. Suppose B’s MAC address is not in A’s ARP table. A broadcasts ARP query packet, containing B's IP address all machines on LAN receive ARP query B receives ARP packet, replies to A with its (B's) MAC address ...
Link Layer
... over different links: e.g., Ethernet on first link, frame relay on intermediate links, 802.11 on last link ...
... over different links: e.g., Ethernet on first link, frame relay on intermediate links, 802.11 on last link ...
Chapter 1
... • Some distance vector routing protocols periodically broadcast the entire routing table to each of its neighbors (RIP – every 30 seconds). • Inefficient: Updates consume bandwidth and router CPU resources. • Periodic updates are always sent even there have been no changes for weeks or ...
... • Some distance vector routing protocols periodically broadcast the entire routing table to each of its neighbors (RIP – every 30 seconds). • Inefficient: Updates consume bandwidth and router CPU resources. • Periodic updates are always sent even there have been no changes for weeks or ...
VPN-B
... SOO) • All other BGP attributes • Received route is imported into appropriate VRF according to RT values • Routes installed into VRF are propagated to CE routers CQFE rev14 Russ Davis ...
... SOO) • All other BGP attributes • Received route is imported into appropriate VRF according to RT values • Routes installed into VRF are propagated to CE routers CQFE rev14 Russ Davis ...
Introduction
... • IEEE’s version of CSMA/CD from 1985. • Interoperates with 802.2 (LLC) as higher layer. • Difference for our purposes: Ethernet and 802.3 use different methods to encapsulate an IP datagram. ...
... • IEEE’s version of CSMA/CD from 1985. • Interoperates with 802.2 (LLC) as higher layer. • Difference for our purposes: Ethernet and 802.3 use different methods to encapsulate an IP datagram. ...
Data encapsulation
... sufficiently small for transmission over the network inside packets. Flow control. This is the generation by a receiving system of messages that instruct the sending system to speed up or slow down its rate of transmission. Error detection. This is the inclusion of special codes in a packet that the ...
... sufficiently small for transmission over the network inside packets. Flow control. This is the generation by a receiving system of messages that instruct the sending system to speed up or slow down its rate of transmission. Error detection. This is the inclusion of special codes in a packet that the ...
Adaptive Fairness through intra-ONU Scheduling for Ethernet
... requirement using a single four-bytes field specified in the MPCP REPORT message. Meanwhile, the OLT waits until all REPORTs from all ONUs are received, and allocates the appropriate bandwidth based on the requested bandwidth of each ONU j. In other words, if ONU j is requesting less than a minimum ...
... requirement using a single four-bytes field specified in the MPCP REPORT message. Meanwhile, the OLT waits until all REPORTs from all ONUs are received, and allocates the appropriate bandwidth based on the requested bandwidth of each ONU j. In other words, if ONU j is requesting less than a minimum ...
Document
... • Medium Access Control (MAC) protocols are used in broadcast links to allow a node to access medium and send information • As if “switch” is in endpoints • Wasteful of resources because all endpoints receive all packets B’s MAC layer checks destination address to determine whether the packet should ...
... • Medium Access Control (MAC) protocols are used in broadcast links to allow a node to access medium and send information • As if “switch” is in endpoints • Wasteful of resources because all endpoints receive all packets B’s MAC layer checks destination address to determine whether the packet should ...
Link-State Routing Protocols
... Link State Routing protocols are also known as Shortest Path First protocols Summarizing the link state process – Routers 1ST learn of directly connected networks – Routers then say “hello” to neighbors – Routers then build link state packets – Routers then flood LSPs to all neighbors – Routers ...
... Link State Routing protocols are also known as Shortest Path First protocols Summarizing the link state process – Routers 1ST learn of directly connected networks – Routers then say “hello” to neighbors – Routers then build link state packets – Routers then flood LSPs to all neighbors – Routers ...
ppt
... Drop Policies for Layered Multicast • Priority • Packets for low bandwidth layers are kept, drop queued packets for higher layers • Requires router support ...
... Drop Policies for Layered Multicast • Priority • Packets for low bandwidth layers are kept, drop queued packets for higher layers • Requires router support ...
