Bridge Algorithms
... 2. As a bridge receives a BPDU from the root bridge, it adds its port path cost to the BPDU. The cost number for each bridge’s port is determined and assigned by the network manager. Frequently the cost corresponds to the speed of the wire, for example, 100 Mbs wire would have a lower cost than a 10 ...
... 2. As a bridge receives a BPDU from the root bridge, it adds its port path cost to the BPDU. The cost number for each bridge’s port is determined and assigned by the network manager. Frequently the cost corresponds to the speed of the wire, for example, 100 Mbs wire would have a lower cost than a 10 ...
Slide 1 - CS, Technion
... to a randomly chosen Root. Each Root forwards jobs to the least occupied Leafs registered at them Results are sent directly to web server from workers. ...
... to a randomly chosen Root. Each Root forwards jobs to the least occupied Leafs registered at them Results are sent directly to web server from workers. ...
Part I: Introduction
... higher total max throughput, and does not limit the number of nodes nor geographical coverage • Can connect different type Ethernet since it is a store and forward device • Transparent: no need for any change to hosts LAN adapters ...
... higher total max throughput, and does not limit the number of nodes nor geographical coverage • Can connect different type Ethernet since it is a store and forward device • Transparent: no need for any change to hosts LAN adapters ...
HW1 Solution
... 1. 3 Points. Determine which links get deactivated after the Spanning Tree protocol runs, and indicate them on the diagram by putting a small X through the deactivated links. 2. 3 Points. A disgruntled employee wishes to disrupt the network, so she plans on unplugging central bridge switch 8. How do ...
... 1. 3 Points. Determine which links get deactivated after the Spanning Tree protocol runs, and indicate them on the diagram by putting a small X through the deactivated links. 2. 3 Points. A disgruntled employee wishes to disrupt the network, so she plans on unplugging central bridge switch 8. How do ...
Bridges
... are Network Layer devices (examine network layer headers) and Bridges are Link Layer devices Routers maintain routing tables and implement routing algorithms; bridges maintain filtering tables and implement filtering, learning and spanning tree algorithms ...
... are Network Layer devices (examine network layer headers) and Bridges are Link Layer devices Routers maintain routing tables and implement routing algorithms; bridges maintain filtering tables and implement filtering, learning and spanning tree algorithms ...
Switching
... Switch forwarding • Store and forward – high integrity – As a frame arrives it is stored in a buffer until fully received – Switch does error check, computes and verifies CRC value in trailer – If CRC integrity check is successful, MAC address table lookup on destination address for destination por ...
... Switch forwarding • Store and forward – high integrity – As a frame arrives it is stored in a buffer until fully received – Switch does error check, computes and verifies CRC value in trailer – If CRC integrity check is successful, MAC address table lookup on destination address for destination por ...
OptiSwitch® 940 Series - MV Communications Co., Ltd.
... Administration & Maintenance (OAM) support. The uniqueness of a full suite of Carrier-Ethernet tools enables flexible service awareness and rigid SLAs for converged Triple Play, Business, and Mobile backhaul services. The OptiSwitch 940 series meets IEEE, ITU, IETF standards, as well as MEF specific ...
... Administration & Maintenance (OAM) support. The uniqueness of a full suite of Carrier-Ethernet tools enables flexible service awareness and rigid SLAs for converged Triple Play, Business, and Mobile backhaul services. The OptiSwitch 940 series meets IEEE, ITU, IETF standards, as well as MEF specific ...
Network Routing
... Routers + and + arbitrary topologies can be supported + provide protection against broadcast storms - require IP address configuration (not plug and play) - require higher packet processing bridges do well in small (few hundred hosts) while ...
... Routers + and + arbitrary topologies can be supported + provide protection against broadcast storms - require IP address configuration (not plug and play) - require higher packet processing bridges do well in small (few hundred hosts) while ...
Ch 2: Exploring Control Types and Methods
... – Because devices don't get other devices' traffic ...
... – Because devices don't get other devices' traffic ...
Module 4: Processes
... share the same transmission medium Every host on a switched network has its own ...
... share the same transmission medium Every host on a switched network has its own ...
Mountain Sky
... • IDF 1’s catchments area is the Administration Block. • This IDF must be able to service 6 offices with 4 runs going to each. • We have decided to use one 24 port switch as not all runs going into the offices will be used. • This in turn will allow for any installation of extra network devices. • A ...
... • IDF 1’s catchments area is the Administration Block. • This IDF must be able to service 6 offices with 4 runs going to each. • We have decided to use one 24 port switch as not all runs going into the offices will be used. • This in turn will allow for any installation of extra network devices. • A ...
Lecture 1: Introduction - Cs.princeton.edu
... Black: make a black path from upper left to lower right. White: make a white path from lower left to upper right. Goal: algorithm to detect when a player has won? ...
... Black: make a black path from upper left to lower right. White: make a white path from lower left to upper right. Goal: algorithm to detect when a player has won? ...
Software-Defined Networks: Incremental Deployment with
... – Disjoint SCTs – Simple Network Management Protocol(SNMP) ...
... – Disjoint SCTs – Simple Network Management Protocol(SNMP) ...
Spanning Tree Protocol Inter-VLAN Routing
... the port moves to a root-inconsistent STP state, which is effectively equivalent to the STP listening state, and the switch does not forward traffic out of that port. As a result, this feature enforces the position of the root bridge. ...
... the port moves to a root-inconsistent STP state, which is effectively equivalent to the STP listening state, and the switch does not forward traffic out of that port. As a result, this feature enforces the position of the root bridge. ...
Cisco Catalyst 3524-PWR Desktop Switch with Inline
... CLI. • Built-in Web-based management interface through a simple, standard browser such as Netscape Navigator or Microsoft Explorer. • The Simple Network Management Protocol (SNMP) and Telnet interface provide comprehensive in-band management. A CLI-based management console delivers detailed out-of-b ...
... CLI. • Built-in Web-based management interface through a simple, standard browser such as Netscape Navigator or Microsoft Explorer. • The Simple Network Management Protocol (SNMP) and Telnet interface provide comprehensive in-band management. A CLI-based management console delivers detailed out-of-b ...
Slide 1
... Placing a hub between the IP Phone and wall, an attacker can sniff the MAC Address. This bypasses Administrator attempts to hide the MAC Address by removing the sticker or locking the Phone settings. Physical Security of the IP Phone switchport ...
... Placing a hub between the IP Phone and wall, an attacker can sniff the MAC Address. This bypasses Administrator attempts to hide the MAC Address by removing the sticker or locking the Phone settings. Physical Security of the IP Phone switchport ...
VLAN History
... Allows creation of two or more virtual switches from a single switch. Assigning individual ports to a specific virtual switch. First products allowed switching of multiple segments on a single switch, as well as offering a monetary advantage over switched Ethernet ports which cost $700 or more a ...
... Allows creation of two or more virtual switches from a single switch. Assigning individual ports to a specific virtual switch. First products allowed switching of multiple segments on a single switch, as well as offering a monetary advantage over switched Ethernet ports which cost $700 or more a ...
Document
... Switches maintain state and forwarding capabilities even in the event of software or hardware failures ...
... Switches maintain state and forwarding capabilities even in the event of software or hardware failures ...
slides - Computer Science Department
... • Given a mesh network and traffic profile – Load balance the network resource utilization • Prevent congestion by balancing the network load to support as many traffic load as possible ...
... • Given a mesh network and traffic profile – Load balance the network resource utilization • Prevent congestion by balancing the network load to support as many traffic load as possible ...
The Network Layer - Computer Science
... for externally available servers) – DHCP: protocol to request an available address for a finite time (and get first-hop router and DNS info, too) • DHCP addresses can be reused by different subscribers if all subscribers aren’t online all the time. ...
... for externally available servers) – DHCP: protocol to request an available address for a finite time (and get first-hop router and DNS info, too) • DHCP addresses can be reused by different subscribers if all subscribers aren’t online all the time. ...
Module 9 VLAN Trunking Protocol
... • For example, a trunk can connect a switch to another switch, a switch to the inter-VLAN router, or a switch to a server with a special NIC installed that supports trunking. • Remember that when a host on one VLAN wants to communicate with a host on another, a router must be involved. ...
... • For example, a trunk can connect a switch to another switch, a switch to the inter-VLAN router, or a switch to a server with a special NIC installed that supports trunking. • Remember that when a host on one VLAN wants to communicate with a host on another, a router must be involved. ...
lecture
... throughput, and does not limit the number of nodes nor geographical coverage Can connect different type Ethernet since it is a store and forward device Transparent: no need for any change to hosts LAN adapters ...
... throughput, and does not limit the number of nodes nor geographical coverage Can connect different type Ethernet since it is a store and forward device Transparent: no need for any change to hosts LAN adapters ...
multicast - Data Thinker
... each node sends unicast join message to center node message forwarded until it arrives at a node already belonging to spanning tree ...
... each node sends unicast join message to center node message forwarded until it arrives at a node already belonging to spanning tree ...
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.