Week 6 - UCLA Computer Science
... RIP ( Routing Information Protocol) Distance vector algorithm Distance metric: # of hops (max = 15 hops) Neighbor routers exchanged routing advertisement every 30 ...
... RIP ( Routing Information Protocol) Distance vector algorithm Distance metric: # of hops (max = 15 hops) Neighbor routers exchanged routing advertisement every 30 ...
Routing, Cont`d. PowerPoint
... Path Vector protocol: – similar to Distance Vector protocol – each Border Gateway broadcast to neighbors (peers) entire path (I.e, sequence of ASs) to ...
... Path Vector protocol: – similar to Distance Vector protocol – each Border Gateway broadcast to neighbors (peers) entire path (I.e, sequence of ASs) to ...
Bridging
... it then decides whether the destination is local or remote and allows only those data frames with nonlocal destination addresses to cross the bridge to the remote LAN. it only processes data-link layer addresses while transparently forwarding any variety of upper layer protocols embedded within ...
... it then decides whether the destination is local or remote and allows only those data frames with nonlocal destination addresses to cross the bridge to the remote LAN. it only processes data-link layer addresses while transparently forwarding any variety of upper layer protocols embedded within ...
IP MULTICAST ROUTING
... • Derived from Routing Information Protocol – RIP forwards the unicast packets based on the the next-hop towards a destination – DVMRP constructs delivery trees based on shortest previous-hop back to the source ...
... • Derived from Routing Information Protocol – RIP forwards the unicast packets based on the the next-hop towards a destination – DVMRP constructs delivery trees based on shortest previous-hop back to the source ...
IMC conference
... – If Internet a pure hierarchical structure (tree): k = O(n) – If Internet no hierarchy at all (worst case, clique): k = O(n2) – Internet has moderate hierarchical structure [TGJ+02] For reasonably large n, (e.g., 100), k = O(nlogn) (extensive linear regression tests on both synthetic and real topol ...
... – If Internet a pure hierarchical structure (tree): k = O(n) – If Internet no hierarchy at all (worst case, clique): k = O(n2) – Internet has moderate hierarchical structure [TGJ+02] For reasonably large n, (e.g., 100), k = O(nlogn) (extensive linear regression tests on both synthetic and real topol ...
On the Optimal Communication Spanning Tree Problem Working
... solutions (trees) for each test problem. As it is difficult to generate random trees in an unbiased manner (Raidl & Julstrom, 2003), we encode the trees using the Prüfer number representation (Prüfer, 1918). Generating random individuals by generating random Prüfer numbers allows us to create unb ...
... solutions (trees) for each test problem. As it is difficult to generate random trees in an unbiased manner (Raidl & Julstrom, 2003), we encode the trees using the Prüfer number representation (Prüfer, 1918). Generating random individuals by generating random Prüfer numbers allows us to create unb ...
Path Splicing - UCLA Computer Science
... • Multipath routing typically computes k edge-disjoint paths – Nodes can become disconnected if at least one link on each path fails, even if the graph is still connected ...
... • Multipath routing typically computes k edge-disjoint paths – Nodes can become disconnected if at least one link on each path fails, even if the graph is still connected ...
Overview of Bridging
... The Cisco IOS bridging software includes SRB capability. A source-route bridge connects multiple physical Token Rings into one logical network segment. If the network segment bridges only Token Ring media to provide connectivity, the technology is termed SRB. If the network bridges Token Ring and no ...
... The Cisco IOS bridging software includes SRB capability. A source-route bridge connects multiple physical Token Rings into one logical network segment. If the network segment bridges only Token Ring media to provide connectivity, the technology is termed SRB. If the network bridges Token Ring and no ...
3rd Edition, Chapter 5
... The probability of no collision is probability of no event in the vulnerability period = 2T Let T = 1 (i.e., our time is measured in packet transmission times, not seconds) Then what is ? = average number of transmission attempts per transmission time. ...
... The probability of no collision is probability of no event in the vulnerability period = 2T Let T = 1 (i.e., our time is measured in packet transmission times, not seconds) Then what is ? = average number of transmission attempts per transmission time. ...
Part I: Introduction
... LAN and dropped if address does not match • Type: indicates the higher layer protocol, mostly IP but others may be supported such as Novell IPX and AppleTalk) • CRC: checked at receiver, if error is detected, the frame is ...
... LAN and dropped if address does not match • Type: indicates the higher layer protocol, mostly IP but others may be supported such as Novell IPX and AppleTalk) • CRC: checked at receiver, if error is detected, the frame is ...
pdf
... – focus on addressing – at IP (datagram) and MAC layer (frame) – assume A knows B’s IP address – assume A knows IP address of first hop router, R (how?) – assume A knows R’s MAC address (how?) ...
... – focus on addressing – at IP (datagram) and MAC layer (frame) – assume A knows B’s IP address – assume A knows IP address of first hop router, R (how?) – assume A knows R’s MAC address (how?) ...
tutorial7
... • The local group database keeps track of the group membership of the router's directly attached networks. • Each entry in the local group database is a pair of: [group, attached network] which indicates that the attached network has one or more hosts belonging to the multicast destination group. • ...
... • The local group database keeps track of the group membership of the router's directly attached networks. • Each entry in the local group database is a pair of: [group, attached network] which indicates that the attached network has one or more hosts belonging to the multicast destination group. • ...
A Scalable Fault-Tolerant Layer 2 Data Center Network Fabric
... switch that delivers non-blocking bandwidth among directly connected hosts. Today, a standard ToR switch contains 48 GigE ports and up to 4 available 10 GigE uplinks. ToR switches connect to end of row (EoR) switches via 1-4 of the available 10 GigE uplinks. To tolerate individual switch failures, T ...
... switch that delivers non-blocking bandwidth among directly connected hosts. Today, a standard ToR switch contains 48 GigE ports and up to 4 available 10 GigE uplinks. ToR switches connect to end of row (EoR) switches via 1-4 of the available 10 GigE uplinks. To tolerate individual switch failures, T ...
Ch 01 - Introducig VoIP Networks
... analog signaling to an analog device connected to the ATA’s FXS port. Recent versions of Cisco IOS voice gateways—for example, the 2800 series—also support SCCP controlled Foreign Exchange Station (FXS) ports. ...
... analog signaling to an analog device connected to the ATA’s FXS port. Recent versions of Cisco IOS voice gateways—for example, the 2800 series—also support SCCP controlled Foreign Exchange Station (FXS) ports. ...
Virtual Service Networks
... Use shortest path first tree rooted at each node as its own private multicast tree. A B R ...
... Use shortest path first tree rooted at each node as its own private multicast tree. A B R ...
IP in LANs
... A pair of fibers needed for single link - one for transmission and other for receiving ...
... A pair of fibers needed for single link - one for transmission and other for receiving ...
How to Configure ClusterXL for L2 Link Aggregation
... All rights reserved. This product and related documentation are protected by copyright and distributed under licensing restricting their use, copying, distribution, and decompilation. No part of this product or related documentation may be reproduced in any form or by any means without prior written ...
... All rights reserved. This product and related documentation are protected by copyright and distributed under licensing restricting their use, copying, distribution, and decompilation. No part of this product or related documentation may be reproduced in any form or by any means without prior written ...
Existence of a Universal Cover
... Definition 2 Let γ : I → X be a path starting at x0 and let U be an open neighborhood of the end of γ in X. Then < U, γ > is the set of points of C which can be represented by paths of the form γ ? α where α is a path entirely in U starting at the end of γ. Definition 3 A subset of C is said to be ...
... Definition 2 Let γ : I → X be a path starting at x0 and let U be an open neighborhood of the end of γ in X. Then < U, γ > is the set of points of C which can be represented by paths of the form γ ? α where α is a path entirely in U starting at the end of γ. Definition 3 A subset of C is said to be ...
The Pulse Protocol - Department of Computer Science
... 10% of min-hop paths fail within 1.3 seconds After 5 seconds 25% of min-hop paths have failed On-Demand routes may only work for a short period of time Link State Protocols need to flood every time a link changes These simulations only consider changes from connected not connected (in free space) ...
... 10% of min-hop paths fail within 1.3 seconds After 5 seconds 25% of min-hop paths have failed On-Demand routes may only work for a short period of time Link State Protocols need to flood every time a link changes These simulations only consider changes from connected not connected (in free space) ...
Class Power Points for Chapter #6
... large to fit in one data packet, it is split up and all of its child packets are given the same identification number. This is handy to ensure data is rebuilt on the receiving end properly. 6. Flags - This field signifies fragmentation options- such as whether or not fragments are allowed. The Flags ...
... large to fit in one data packet, it is split up and all of its child packets are given the same identification number. This is handy to ensure data is rebuilt on the receiving end properly. 6. Flags - This field signifies fragmentation options- such as whether or not fragments are allowed. The Flags ...
HP 6200-24G-mGBIC yl Switch
... HP 6200-24G-mGBIC yl Switch (J8992A) 1-year, post-warranty, 4-hour onsite, 13x5 coverage for hardware (HR889E) 1-year, post-warranty, 4-hour onsite, 24x7 coverage for hardware (HR890E) 1-year, post-warranty, 4-hour onsite, 24x7 coverage for hardware, 24x7 software phone support (HR891E) Installation ...
... HP 6200-24G-mGBIC yl Switch (J8992A) 1-year, post-warranty, 4-hour onsite, 13x5 coverage for hardware (HR889E) 1-year, post-warranty, 4-hour onsite, 24x7 coverage for hardware (HR890E) 1-year, post-warranty, 4-hour onsite, 24x7 coverage for hardware, 24x7 software phone support (HR891E) Installation ...
convrey-bh-us-02-layer2
... • There are L2 Security issues? • I use VLANs all the time • Routing in and out of the same switch is OK by me! That’s what VLANs are for • The security guy asks me for a new segment, I create a VLAN and assign him an address space ...
... • There are L2 Security issues? • I use VLANs all the time • Routing in and out of the same switch is OK by me! That’s what VLANs are for • The security guy asks me for a new segment, I create a VLAN and assign him an address space ...
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.