CCNA 3 Revision Notes
... Because it primarily is a distance vector protocol, but also has some characteristics of a link state protocol, such as sending hello packets, sending only partial updates (instead of entire table exchanges), and using neighbor discovery. However, it’s easier to configure than OSPF. 3. Can IGRP and ...
... Because it primarily is a distance vector protocol, but also has some characteristics of a link state protocol, such as sending hello packets, sending only partial updates (instead of entire table exchanges), and using neighbor discovery. However, it’s easier to configure than OSPF. 3. Can IGRP and ...
Linux Sockets with TCP/IP communications
... // sd is a file descriptor for an open socket // p points to a sockaddr_in structure -- on return will contain info about the source making a connection. // addr_lenp -- on return will contain the length of the source sockaddr_in structure // returns an open file descriptor for a connected socket co ...
... // sd is a file descriptor for an open socket // p points to a sockaddr_in structure -- on return will contain info about the source making a connection. // addr_lenp -- on return will contain the length of the source sockaddr_in structure // returns an open file descriptor for a connected socket co ...
Firewall and Proxy Server
... Packet Filtering is the type of firewall built into the Linux kernel A filtering firewall works at the network level. ...
... Packet Filtering is the type of firewall built into the Linux kernel A filtering firewall works at the network level. ...
6LoWPAN adaptation layer (cont.)
... 6LoWPAN adaptation layer In order to implement the seamless connection of MAC layer and IPv6 network layer, 6LoWPAN working group suggested that adding an adaptation layer between MAC layer and the network layer to achieve the header compression, fragmentation and layer-two forwarding. In heade ...
... 6LoWPAN adaptation layer In order to implement the seamless connection of MAC layer and IPv6 network layer, 6LoWPAN working group suggested that adding an adaptation layer between MAC layer and the network layer to achieve the header compression, fragmentation and layer-two forwarding. In heade ...
Computer Networks and the Internet
... Queuing delay and packet loss. Many packets can arrive at a packet switch roughly at the same time. If these packets need to be forwarded on the same outbound link, all but one will have to “queue,” that is, wait to be transmitted. This waiting introduces a queuing delay. Furthermore, if the queue o ...
... Queuing delay and packet loss. Many packets can arrive at a packet switch roughly at the same time. If these packets need to be forwarded on the same outbound link, all but one will have to “queue,” that is, wait to be transmitted. This waiting introduces a queuing delay. Furthermore, if the queue o ...
3rd Edition, Chapter 5
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
The Network Layer
... network load into account. Two dynamic algorithms in particular, distance vector routing and link state routing, are the most popular. Distance vector routing algorithms operate by having each router maintain a table (i.e, a vector) giving the best known distance to each destination and which line t ...
... network load into account. Two dynamic algorithms in particular, distance vector routing and link state routing, are the most popular. Distance vector routing algorithms operate by having each router maintain a table (i.e, a vector) giving the best known distance to each destination and which line t ...
Principles of reliable data transfer
... Client wants IP for www.amazon.com; 1st approx: Client queries a root server to find com DNS server Client queries com DNS server to get amazon.com DNS server Client queries amazon.com DNS server to get IP address for www.amazon.com ...
... Client wants IP for www.amazon.com; 1st approx: Client queries a root server to find com DNS server Client queries com DNS server to get amazon.com DNS server Client queries amazon.com DNS server to get IP address for www.amazon.com ...
Carrier Ethernet: The next generation network and service
... SDH ADMs / Transport replaced by Ethernet Transport Shortest possible Ethernet over E1 (PDH) loops CLE at customer premise enables converged Ethernet and IP services Local switching of locally attached subscribers reduces backhaul bandwidth © Copyright 2008 Turin Networks, Inc. All Rights Reserved ...
... SDH ADMs / Transport replaced by Ethernet Transport Shortest possible Ethernet over E1 (PDH) loops CLE at customer premise enables converged Ethernet and IP services Local switching of locally attached subscribers reduces backhaul bandwidth © Copyright 2008 Turin Networks, Inc. All Rights Reserved ...
4. Virtual Private Networks ( VPN )
... PPTP is a tunneling protocol provided by Microsoft, which provides remote users, encrypted, multi protocol access to a corporate network over the Internet. It encapsulates PPP frames in IP data grams (IP, IPX and NetBEUI are encapsulated) PPTP is built in to NT 4.0 and the client is free for the old ...
... PPTP is a tunneling protocol provided by Microsoft, which provides remote users, encrypted, multi protocol access to a corporate network over the Internet. It encapsulates PPP frames in IP data grams (IP, IPX and NetBEUI are encapsulated) PPTP is built in to NT 4.0 and the client is free for the old ...
Implementing a Secure Internal Network
... feature set IOS and Context-Based Access Control (CBAC)5 is implemented on the router. CBAC will allow outbound traffic and will dynamically configure the inbound ACL on the internet side of the router to allow responding traffic back to the internal network. CBAC has extended the packet-filtering f ...
... feature set IOS and Context-Based Access Control (CBAC)5 is implemented on the router. CBAC will allow outbound traffic and will dynamically configure the inbound ACL on the internet side of the router to allow responding traffic back to the internal network. CBAC has extended the packet-filtering f ...
3rd Edition, Chapter 5
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
Computer network- Chapter 1: Introduction
... table, when the connection is created, or when each packet is sent. Congestion: Controls the number packets in the subnet. Accounting: Counts packets/bytes for billing purposes. ...
... table, when the connection is created, or when each packet is sent. Congestion: Controls the number packets in the subnet. Accounting: Counts packets/bytes for billing purposes. ...
slides #2 - The Fengs
... Is it possible to allow incoming connections to an IP multiplexed in this manner? ...
... Is it possible to allow incoming connections to an IP multiplexed in this manner? ...
GPSR: Greedy Perimeter Stateless Routing for Wireless Networks
... A simple beaconing algorithm provides all nodes with their neighbors’ positions: periodically, each node transmits a beacon to the broadcast MAC address, containing only its own identifier (e.g., IP address) and position. We encode position as two four-byte floatingpoint quantities, for x and y coo ...
... A simple beaconing algorithm provides all nodes with their neighbors’ positions: periodically, each node transmits a beacon to the broadcast MAC address, containing only its own identifier (e.g., IP address) and position. We encode position as two four-byte floatingpoint quantities, for x and y coo ...
Network Layer
... Assignment 1 due today. Submit in class or bring to my office. Assignment 2 coming soon… Expect more information about assignment environment by Friday ...
... Assignment 1 due today. Submit in class or bring to my office. Assignment 2 coming soon… Expect more information about assignment environment by Friday ...
ppt
... • Do not use classes to determine network ID • Use common part of address as network number • E.g., addresses 192.4.16 - 192.4.31 have the first 20 bits in common. Thus, we use these 20 bits as the ...
... • Do not use classes to determine network ID • Use common part of address as network number • E.g., addresses 192.4.16 - 192.4.31 have the first 20 bits in common. Thus, we use these 20 bits as the ...
Institutionen för systemteknik
... A previous thesis written at the department had shown the feasibility of implementing such a router with an on-chip network (SoCBUS) in a custom ASIC. It was however obvious from the start that limitations (e.g. speed and available on-chip memory) in the hardware used in this project would result in ...
... A previous thesis written at the department had shown the feasibility of implementing such a router with an on-chip network (SoCBUS) in a custom ASIC. It was however obvious from the start that limitations (e.g. speed and available on-chip memory) in the hardware used in this project would result in ...
COE 308: Computer Architecture (T032) Dr. Marwan Abu
... Application layer Host to host or transport layer Internet layer Network access layer Physical layer COE 341 – Dr. Marwan Abu-Amara ...
... Application layer Host to host or transport layer Internet layer Network access layer Physical layer COE 341 – Dr. Marwan Abu-Amara ...
Networking - Rice University
... Note: clients and servers are processes running on hosts (can be the same or different hosts) Cox & Ng ...
... Note: clients and servers are processes running on hosts (can be the same or different hosts) Cox & Ng ...
GPSR: Greedy Perimeter Stateless Routing for Wireless Networks
... state for a one-hop radius about a router is the minimum required to do any routing; no useful forwarding decision can be made without knowledge of the topology one or more hops away. This beaconing mechanism does represent pro-active routing protocol traffic, avoided by DSR and AODV. To minimize th ...
... state for a one-hop radius about a router is the minimum required to do any routing; no useful forwarding decision can be made without knowledge of the topology one or more hops away. This beaconing mechanism does represent pro-active routing protocol traffic, avoided by DSR and AODV. To minimize th ...
Wireless Mesh Networks - BWN-Lab
... Conventional nodes (e.g., desktops, laptops, PDAs, PocketPCs, phones, etc.) equipped with wireless network interface cards (NICs) can connect directly to wireless mesh routers. Customers without wireless NICs can access WMNs by connecting to wireless mesh routers through, e.g., Ethernet. ...
... Conventional nodes (e.g., desktops, laptops, PDAs, PocketPCs, phones, etc.) equipped with wireless network interface cards (NICs) can connect directly to wireless mesh routers. Customers without wireless NICs can access WMNs by connecting to wireless mesh routers through, e.g., Ethernet. ...
Border Gateway Protocol
... • A advertises path AW to B • B advertises path BAW to X • Should B advertise path BAW to C? – No way! B gets no “revenue” for routing CBAW since neither W nor C are B’s customers • B wants to force C to route to w via A • B wants to route only to/from its customers! CPE 401/601 Lecture 10 : Border ...
... • A advertises path AW to B • B advertises path BAW to X • Should B advertise path BAW to C? – No way! B gets no “revenue” for routing CBAW since neither W nor C are B’s customers • B wants to force C to route to w via A • B wants to route only to/from its customers! CPE 401/601 Lecture 10 : Border ...