02_tcom5272_lan
... Because both nodes can transmit and receive at the same time, there are no negotiations for bandwidth 100% of bandwidth is available: 10 Mbps increases to 20 Mbps of ...
... Because both nodes can transmit and receive at the same time, there are no negotiations for bandwidth 100% of bandwidth is available: 10 Mbps increases to 20 Mbps of ...
Document
... Network Interface Card – connects the device to the network and allows communication between the computer Wireless Access Point (WAP) – connected to the network by a cable and positioned so that it can send and receive the wireless signal Modem – converts digital to analogue signals and back again R ...
... Network Interface Card – connects the device to the network and allows communication between the computer Wireless Access Point (WAP) – connected to the network by a cable and positioned so that it can send and receive the wireless signal Modem – converts digital to analogue signals and back again R ...
Packet Switching
... • Learn table entries based on source address • Table is an optimization; need not be complete • Always forward broadcast frames ...
... • Learn table entries based on source address • Table is an optimization; need not be complete • Always forward broadcast frames ...
Ch. 11
... is a tree, but problems occur when alternate routes exist. • Consider Fig. 11.9. – When A transmits to B, both bridges will update their databases and relay the frame. – However, they will receive each others relay and update the databases again. – B then cannot transmit to A. ...
... is a tree, but problems occur when alternate routes exist. • Consider Fig. 11.9. – When A transmits to B, both bridges will update their databases and relay the frame. – However, they will receive each others relay and update the databases again. – B then cannot transmit to A. ...
Configuring Cisco Switches
... Forward/filter decisions When a frame is received on an interface, the switch looks at the destination hardware address and finds the exit interface in the MAC database. The frame is only forwarded out the specified destination port. ...
... Forward/filter decisions When a frame is received on an interface, the switch looks at the destination hardware address and finds the exit interface in the MAC database. The frame is only forwarded out the specified destination port. ...
Networking Components
... to share details of routes with other routers • Routing Table – a database which keeps track of the routes to networks and the associated costs • Static Routing – routes are manually configured by a network administrator • Dynamic Routing – adjust automatically to changes in network topology, and in ...
... to share details of routes with other routers • Routing Table – a database which keeps track of the routes to networks and the associated costs • Static Routing – routes are manually configured by a network administrator • Dynamic Routing – adjust automatically to changes in network topology, and in ...
ch15 AM3 File
... creating a topology in which each LAN can be reached from any other LAN through one path only (no loop). Logical topology is created instead of physical topology. ...
... creating a topology in which each LAN can be reached from any other LAN through one path only (no loop). Logical topology is created instead of physical topology. ...
Chapter 5: STP * What is STP? How does STP work? * What would
... The link type provides a categorization for each port participating in RSTP. Edge ports. Non-edge ports They are categorized into 2 link types, point-to-point and shared * What are the 5 RSTP port roles? Root - A forwarding port that has been elected for the spanning-tree topology Design ...
... The link type provides a categorization for each port participating in RSTP. Edge ports. Non-edge ports They are categorized into 2 link types, point-to-point and shared * What are the 5 RSTP port roles? Root - A forwarding port that has been elected for the spanning-tree topology Design ...
16-port 10m/100m soho fast ethernet switch ggm ne816x
... GGM NE816X is 16-port 10M/100M SOHO Fast Ethernet Switch that is designed for small or medium network environment to strengthen its network connection. This product is compact in size, making it ideal for SOHO users with limited space. It is a superb choice for expanding your network. ...
... GGM NE816X is 16-port 10M/100M SOHO Fast Ethernet Switch that is designed for small or medium network environment to strengthen its network connection. This product is compact in size, making it ideal for SOHO users with limited space. It is a superb choice for expanding your network. ...
CCNA3 3.0-07 STP
... STP establishes a root node, called the root bridge, and constructs a topology that has one path for reaching every network node. The resulting tree originates from the root bridge. Redundant links that are not part of the shortest path tree are blocked. A loop-free topology is possible because cert ...
... STP establishes a root node, called the root bridge, and constructs a topology that has one path for reaching every network node. The resulting tree originates from the root bridge. Redundant links that are not part of the shortest path tree are blocked. A loop-free topology is possible because cert ...
Chapter 15 Local Area Network Overview
... • Bridge must decide whether to forward frame • Bridge must decide which LAN to forward frame on • Routing selected for each source-destination pair of LANs —Done in configuration —Usually least hop route —Only changed when topology changes ...
... • Bridge must decide whether to forward frame • Bridge must decide which LAN to forward frame on • Routing selected for each source-destination pair of LANs —Done in configuration —Usually least hop route —Only changed when topology changes ...
Multiple Spanning Tree Protocol
... Multiple Spanning Tree Protocol The Multiple Spanning Tree Protocol (MSTP) is an STP variant that allows multiple and independent spanning trees to be created over the same physical network. The parameters for each spanning tree can be configured separately, so as to cause a different network device ...
... Multiple Spanning Tree Protocol The Multiple Spanning Tree Protocol (MSTP) is an STP variant that allows multiple and independent spanning trees to be created over the same physical network. The parameters for each spanning tree can be configured separately, so as to cause a different network device ...
More on LANS
... • Bridge must decide whether to forward frame • Bridge must decide which LAN to forward frame on • Fixed Routing - Routing selected for each sourcedestination pair of LANs – Done in configuration – Usually least hop route – Only changed when topology changes ...
... • Bridge must decide whether to forward frame • Bridge must decide which LAN to forward frame on • Fixed Routing - Routing selected for each sourcedestination pair of LANs – Done in configuration – Usually least hop route – Only changed when topology changes ...
CSEE W4140 Networking Laboratory
... priority of configurable interface (used for loop detection) ...
... priority of configurable interface (used for loop detection) ...
Lesson 07 Bridges, Hub, Switches and Routers
... What is the IP address a of next target for the packet (next-hop or addressee) On which link this host is located (and directly reachable) Broadcast “who-as a” on the link The host whose IP is a replies: “a is-at m” Encapsulated the IP packet in a Ethernet frame: Source MAC address: of the sending n ...
... What is the IP address a of next target for the packet (next-hop or addressee) On which link this host is located (and directly reachable) Broadcast “who-as a” on the link The host whose IP is a replies: “a is-at m” Encapsulated the IP packet in a Ethernet frame: Source MAC address: of the sending n ...
Chapter 11 Extending LANs: Fiber Modems, Repeaters
... source address used to determine location of sender destination address used to determine whether to forward a frame Since bridge does not know location of computers at bootup, frames are forwarded until location of computer can be determined (fig 11.4) (fig 11.5) Broadcast and multicast frames are ...
... source address used to determine location of sender destination address used to determine whether to forward a frame Since bridge does not know location of computers at bootup, frames are forwarded until location of computer can be determined (fig 11.4) (fig 11.5) Broadcast and multicast frames are ...
Chapter 3 Part 2 Switching and Bridging Networking CS 3470, Section 1
... Network J wants to send to Network E ...
... Network J wants to send to Network E ...
ppt
... – Look up port for MACdst for in switch table • If entry is there, forward frame to that port • Else, broadcast frame to all ports (except ingress port) ...
... – Look up port for MACdst for in switch table • If entry is there, forward frame to that port • Else, broadcast frame to all ports (except ingress port) ...
bridge
... In a large network, some administrator could add a bridge that closes a loop without realizing it Could also be built in on purpose to provide redundancy ...
... In a large network, some administrator could add a bridge that closes a loop without realizing it Could also be built in on purpose to provide redundancy ...
Spanning Tree Protocol (STP)
... have to determine the root bridge and compute the port roles (root, designated, or blocked) with only the information that they have. To ensure that each bridge has enough information, the bridges use special data frames called Bridge Protocol Data Units (BPDUs) to exchange information about bridge ...
... have to determine the root bridge and compute the port roles (root, designated, or blocked) with only the information that they have. To ensure that each bridge has enough information, the bridges use special data frames called Bridge Protocol Data Units (BPDUs) to exchange information about bridge ...
Spanning Tree Protocol
The Spanning Tree Protocol (STP) is an older network protocol that ensures a loop-free topology for any bridged Ethernet local area network. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include spare (redundant) links to provide automatic backup paths if an active link fails, without the danger of bridge loops, or the need for manual enabling/disabling of these backup links.Spanning Tree Protocol (STP) was originally standardized as IEEE 802.1D, in 802.1d-1998, but much of the functionality (spanning tree, rapid spanning tree, multiple spanning tree) previously specified in 802.1D, 801.1s, 802.1w has been incorporated into IEEE 802.1Q-2014 which includes shortest path bridging, the IEEE sanctioned replacement for these spanning tree functions.As the name suggests, it creates a spanning tree within a network of connected layer-2 bridges (typically Ethernet switches), and disables those links that are not part of the spanning tree, leaving a single active path between any two network nodes. STP is based on an algorithm that was invented by Radia Perlman while she was working for Digital Equipment Corporation.