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... • Group related hosts – Same company – Same role (e.g., faculty vs. students) – All WiFi users ...
... • Group related hosts – Same company – Same role (e.g., faculty vs. students) – All WiFi users ...
Switch Cisco c6-sd208-eu
... The SLM2008 supports the IEEE802.3af standard for Power over Ethernet (PoE) for obtaining its power over a designated PD port or from an external AC power adapter. This gives companies the option to install the switch in places where a power outlet may not be present, such as in ceilings and in wall ...
... The SLM2008 supports the IEEE802.3af standard for Power over Ethernet (PoE) for obtaining its power over a designated PD port or from an external AC power adapter. This gives companies the option to install the switch in places where a power outlet may not be present, such as in ceilings and in wall ...
Wireless Bridges
... • Repeater Access Point—Use this setting to set up the bridge as a rugged repeater access point. A repeater access point is not connected to the wired LAN; it is placed within radio range of an access point connected to the wired LAN to extend the range of your infrastructure or to overcome an obsta ...
... • Repeater Access Point—Use this setting to set up the bridge as a rugged repeater access point. A repeater access point is not connected to the wired LAN; it is placed within radio range of an access point connected to the wired LAN to extend the range of your infrastructure or to overcome an obsta ...
Basic LAN Devices Repeaters There are many types of media, and
... The purpose of a hub is to regenerate and retime network signals. This is done at the bit level to a large number of hosts (e.g. 4, 8, or even 24) using a process known as concentration. You will notice that this definition is very similar to the repeater's, which is why a hub is also known as a mul ...
... The purpose of a hub is to regenerate and retime network signals. This is done at the bit level to a large number of hosts (e.g. 4, 8, or even 24) using a process known as concentration. You will notice that this definition is very similar to the repeater's, which is why a hub is also known as a mul ...
Layer-2-Network Design
... redundant paths • Always plan and set bridge priorities – Make the root choice deterministic – Include an alternative root bridge • If possible, do not accept BPDUs on end user ports – Apply BPDU Guard or similar where available ...
... redundant paths • Always plan and set bridge priorities – Make the root choice deterministic – Include an alternative root bridge • If possible, do not accept BPDUs on end user ports – Apply BPDU Guard or similar where available ...
Local Area Networks
... – Routers support different WAN technologies but switches do not. – Wireless Routers have Access Point built in. – The most common home use for routers is to share a broadband internet connection. The router has a public IP address and that address is shared with the network. When data comes through ...
... – Routers support different WAN technologies but switches do not. – Wireless Routers have Access Point built in. – The most common home use for routers is to share a broadband internet connection. The router has a public IP address and that address is shared with the network. When data comes through ...
private VLANs
... L2 security using STP features • BPDU Guard – Bridge protocol data units (BPDU) are messages exchanged btwn bridges using STP to detect loops in a network. – BPDU Guard feature keeps the active topology predictable and enhances switch network reliability by enforcing the STP domain borders. ...
... L2 security using STP features • BPDU Guard – Bridge protocol data units (BPDU) are messages exchanged btwn bridges using STP to detect loops in a network. – BPDU Guard feature keeps the active topology predictable and enhances switch network reliability by enforcing the STP domain borders. ...
AR G3 Series Enterprise Routers
... 1、The AR1200&2200&3200 boards are hot swappable and guarantee carrier-class reliability. ...
... 1、The AR1200&2200&3200 boards are hot swappable and guarantee carrier-class reliability. ...
procurve s 4000m and 8000m witches
... • RMON and extended RMON: provide advanced monitoring and reporting capabilities for statistics, history, alarms, and events • Port monitoring: allows you to monitor traffic using a switched port so you can view several ports at one time with a network analyzer • Web interface: allows you to confi ...
... • RMON and extended RMON: provide advanced monitoring and reporting capabilities for statistics, history, alarms, and events • Port monitoring: allows you to monitor traffic using a switched port so you can view several ports at one time with a network analyzer • Web interface: allows you to confi ...
ReviewSheet Midterm1 Last modified January 7
... 3. A system with redundant bridges might have a problem with ___ in the system. (a) loops (b) filters (c) spanning trees (d) all of the above. 4. A bridge never forwards frames out of the ___ port. (a) root (b) designated (c) forwarding (d) blocking. 5. An ARP reply is ___ to __. (a) broadcast; all ...
... 3. A system with redundant bridges might have a problem with ___ in the system. (a) loops (b) filters (c) spanning trees (d) all of the above. 4. A bridge never forwards frames out of the ___ port. (a) root (b) designated (c) forwarding (d) blocking. 5. An ARP reply is ___ to __. (a) broadcast; all ...
Lanswitching
... What do the BPDUs do? With the help of the BPDUs, bridges can: • Elect a single bridge as the root bridge. • Calculate the distance of the shortest path to the root bridge • Each LAN can determine a designated bridge, which is the bridge closest to the root. The designated bridge will forward packe ...
... What do the BPDUs do? With the help of the BPDUs, bridges can: • Elect a single bridge as the root bridge. • Calculate the distance of the shortest path to the root bridge • Each LAN can determine a designated bridge, which is the bridge closest to the root. The designated bridge will forward packe ...
Chapter 6 – Connectivity Devices
... each of its ports to provide their MAC address • Once the bridge receives this information, it is recorded in its Forwarding Table • The filtering of traffic enhances the network performance because the nodes spend less time listening to packets that are not destined for them ...
... each of its ports to provide their MAC address • Once the bridge receives this information, it is recorded in its Forwarding Table • The filtering of traffic enhances the network performance because the nodes spend less time listening to packets that are not destined for them ...
Ethernet
... Blocking (no send/rcv, except STP bpdus) Listening (prepare for learning/forwarding) Learning (learn MAC addr but no forwarding) Forwarding (send/rcv frames) ...
... Blocking (no send/rcv, except STP bpdus) Listening (prepare for learning/forwarding) Learning (learn MAC addr but no forwarding) Forwarding (send/rcv frames) ...
Slide 1
... No MAC address based VLANs No VLAN Classification by Protocol / IP Subnet Not PVST+ No 802.1s (Multiple STP) No switch cluster management ...
... No MAC address based VLANs No VLAN Classification by Protocol / IP Subnet Not PVST+ No 802.1s (Multiple STP) No switch cluster management ...
CCNP – Cisco Certified Network Professional -Routing and
... So glad you asked! The CCNP certification validates the ability to plan, implement, verify and troubleshoot local and wide-area enterprise networks and work collaboratively with specialists on advanced security, voice, wireless and video solutions. You should take this class if you love networking a ...
... So glad you asked! The CCNP certification validates the ability to plan, implement, verify and troubleshoot local and wide-area enterprise networks and work collaboratively with specialists on advanced security, voice, wireless and video solutions. You should take this class if you love networking a ...
PPT - University of Virginia, Department of Computer Science
... Ethernet Hubs vs. Ethernet Switches • An Ethernet switch is a packet switch for Ethernet frames • Buffering of frames prevents collisions. • Each port is isolated and builds its own collision domain • An Ethernet Hub does not perform buffering: • Collisions occur if two frames arrive at the same ti ...
... Ethernet Hubs vs. Ethernet Switches • An Ethernet switch is a packet switch for Ethernet frames • Buffering of frames prevents collisions. • Each port is isolated and builds its own collision domain • An Ethernet Hub does not perform buffering: • Collisions occur if two frames arrive at the same ti ...
Chapter One
... single input and single output port Unlike a repeater, it can interpret the data it retransmits ...
... single input and single output port Unlike a repeater, it can interpret the data it retransmits ...
EE 122: Computer Networks - EECS Instructional Support Group
... More Mathematical Facts…. Sums are from i=1 to i=k……. ...
... More Mathematical Facts…. Sums are from i=1 to i=k……. ...
Chapter 15 Local Area Network Overview
... when frame received, bridge “learns” location of sender: incoming LAN segment records sender/location pair in bridge table ...
... when frame received, bridge “learns” location of sender: incoming LAN segment records sender/location pair in bridge table ...
Chapter 15 - William Stallings, Data and Computer
... bridge frame handling done in software switch performs frame forwarding in hardware bridge analyzes and forwards one frame at a time switch can handle multiple frames at a time bridge uses store-and-forward operation switch can have cut-through operation ...
... bridge frame handling done in software switch performs frame forwarding in hardware bridge analyzes and forwards one frame at a time switch can handle multiple frames at a time bridge uses store-and-forward operation switch can have cut-through operation ...
Bridges
... bridge frame handling done in software switch performs frame forwarding in hardware bridge analyzes and forwards one frame at a time switch can handle multiple frames at a time bridge uses store-and-forward operation switch can have cut-through operation ...
... bridge frame handling done in software switch performs frame forwarding in hardware bridge analyzes and forwards one frame at a time switch can handle multiple frames at a time bridge uses store-and-forward operation switch can have cut-through operation ...
IGSW-24040T
... Robust Industrial Protection: IP30 metal case and 19” rack-mountable design Ethernet Protection: 6KV DC ESD protection Power Redundant: 1+2 RPS design, supports one 100~240V AC and dual 36~72V DC power input Redundant Ethernet Network: STP, RSTP and MSTP to greatly improve redundant data backup for ...
... Robust Industrial Protection: IP30 metal case and 19” rack-mountable design Ethernet Protection: 6KV DC ESD protection Power Redundant: 1+2 RPS design, supports one 100~240V AC and dual 36~72V DC power input Redundant Ethernet Network: STP, RSTP and MSTP to greatly improve redundant data backup for ...
port
... the following: 1. Clarification of new port states and roles 2. Definition of a set of link types that can go to forwarding state rapidly 3. Allowing switches, in a converged network, to generate their own BPDUs rather than relaying root bridge BPDUs 4. Point-to-point links and edge-type links can g ...
... the following: 1. Clarification of new port states and roles 2. Definition of a set of link types that can go to forwarding state rapidly 3. Allowing switches, in a converged network, to generate their own BPDUs rather than relaying root bridge BPDUs 4. Point-to-point links and edge-type links can g ...
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.