Mobiiliverkot ja liikkuvuuden hallinta
... • In the “Brute Force” - solution this is updated in all routers! In practice this is not feasible! • An analysis of 128 bits in this DB requires 8 reads which basically is not a problem. • The biggest technical problem is updates! • Mobility architectures must decrease mobility update traffic to lo ...
... • In the “Brute Force” - solution this is updated in all routers! In practice this is not feasible! • An analysis of 128 bits in this DB requires 8 reads which basically is not a problem. • The biggest technical problem is updates! • Mobility architectures must decrease mobility update traffic to lo ...
Title: First Slide in a Presentation
... the PIX with a security level of 100 to the outside interface of the PIX with a security level of 0, all IP-based traffic is allowed unless it is restricted by ACLs, authentication, or authorization. ICMP does not follow this rule. • Lower security level interface to a higher security level interfac ...
... the PIX with a security level of 100 to the outside interface of the PIX with a security level of 0, all IP-based traffic is allowed unless it is restricted by ACLs, authentication, or authorization. ICMP does not follow this rule. • Lower security level interface to a higher security level interfac ...
computer_network_basics
... routing: determines sourcedestination route taken by packets routing algorithms ...
... routing: determines sourcedestination route taken by packets routing algorithms ...
Q and A slides
... Q: Does a machine ARP for a machine that is not on its local LAN? A: No! It is trying to find the MAC address – which means layer 2. So, it is trying to get the packet to its next-hop (which might be the ultimate destination). If the destination address is not on the local network, then the packet i ...
... Q: Does a machine ARP for a machine that is not on its local LAN? A: No! It is trying to find the MAC address – which means layer 2. So, it is trying to get the packet to its next-hop (which might be the ultimate destination). If the destination address is not on the local network, then the packet i ...
Introduction (cont.)
... Using an actual malware sample or a client simulating a bot, researchers join a botnet to perform analysis from the inside. To achieve this, honeypots, honey clients, or spam traps are used to obtain a copy of a malware sample. For some botnets that rely on a central IRC-based C&C server, join ...
... Using an actual malware sample or a client simulating a bot, researchers join a botnet to perform analysis from the inside. To achieve this, honeypots, honey clients, or spam traps are used to obtain a copy of a malware sample. For some botnets that rely on a central IRC-based C&C server, join ...
Network Layer
... strict timing, reliability timing req. requirements “smart” end systems need for guaranteed (computers) service can adapt, perform “dumb” end systems control, error recovery telephones simple inside network, complexity inside complexity at “edge” network many link types different ...
... strict timing, reliability timing req. requirements “smart” end systems need for guaranteed (computers) service can adapt, perform “dumb” end systems control, error recovery telephones simple inside network, complexity inside complexity at “edge” network many link types different ...
Content Adaptation in heterogeneous Environment
... Overlay network may be too heavyweight for some nodes ...
... Overlay network may be too heavyweight for some nodes ...
1. Placing Proxy Servers in the Network Design
... Allow or disallow selected users or groups to transmit data to the Internet through Proxy Server. ...
... Allow or disallow selected users or groups to transmit data to the Internet through Proxy Server. ...
An Overview of TCP/IP Protocols and the Internet
... While the Internet today is recognized as a network that is fundamentally changing social, political, and economic structures, and in many ways obviating geographic boundaries, this potential is merely the realization of predictions that go back nearly forty years. In a series of memos dating back t ...
... While the Internet today is recognized as a network that is fundamentally changing social, political, and economic structures, and in many ways obviating geographic boundaries, this potential is merely the realization of predictions that go back nearly forty years. In a series of memos dating back t ...
Optical Networks
... between service provider and customer • Connectivity between ServicePoP and customer more important than provider to customer • Feature is very fast infrastructure Feb. 5, 2002 ...
... between service provider and customer • Connectivity between ServicePoP and customer more important than provider to customer • Feature is very fast infrastructure Feb. 5, 2002 ...
Campus Fabric Design Guide - CVD - October 2016
... RFC 6830 and other RFCs define LISP as a network architecture and set of protocols that implement a new semantic for IP addressing and forwarding. In traditional IP networks, the IP address is used to identify both an endpoint and its physical location as part of a subnet assignment on a router. In ...
... RFC 6830 and other RFCs define LISP as a network architecture and set of protocols that implement a new semantic for IP addressing and forwarding. In traditional IP networks, the IP address is used to identify both an endpoint and its physical location as part of a subnet assignment on a router. In ...
5 TASK
... diffserv, MPLS and combinations thereof. In addition, the number of administrative domains increases from a simple “core” model to the “man - core -man” model Task Deliverables: [Document and Powerpoint presentation] A document and presentation should be produced which specifies the final details of ...
... diffserv, MPLS and combinations thereof. In addition, the number of administrative domains increases from a simple “core” model to the “man - core -man” model Task Deliverables: [Document and Powerpoint presentation] A document and presentation should be produced which specifies the final details of ...
Optimal Spare Capacity Preconfiguration for Faster Restoration of
... we develop. Such an approach would be warranted only if it were impossible to break into precon® gured paths at intermediate nodes, such as 6, 3, 4, or 7 in (9, 7, 4, 3, 6, 8). This does imply that a fast break-then-make operation is required to gain the most real-time bene® t from breaking into bun ...
... we develop. Such an approach would be warranted only if it were impossible to break into precon® gured paths at intermediate nodes, such as 6, 3, 4, or 7 in (9, 7, 4, 3, 6, 8). This does imply that a fast break-then-make operation is required to gain the most real-time bene® t from breaking into bun ...
PPT
... for fragmentation • Time to live • Must be decremented at each router • Packets with TTL=0 are thrown away • Ensure packets exit the network Lecture 8: 9-20-01 ...
... for fragmentation • Time to live • Must be decremented at each router • Packets with TTL=0 are thrown away • Ensure packets exit the network Lecture 8: 9-20-01 ...
ppt
... Keeping Track of Fragments (Cont’d) • Another way is to define elementary fragment size that can pass through every network. • When packet fragmented, all pieces equal to elementary fragment size, except last one (may be smaller). • Packet may contain several fragments. ...
... Keeping Track of Fragments (Cont’d) • Another way is to define elementary fragment size that can pass through every network. • When packet fragmented, all pieces equal to elementary fragment size, except last one (may be smaller). • Packet may contain several fragments. ...
Buffer-Sizing---CAIDA---May-2005 - McKeown Group
... May 5, 2005 Poisson “enough” to get most of the benefit? ...
... May 5, 2005 Poisson “enough” to get most of the benefit? ...
Application Layer Functionality and Protocols
... 1) Network-Aware Applications: Some end-user applications are network-aware, meaning that they implement the application layer protocols and are able to communicate directly with the lower layers of the protocol stack. Ex: Email client, web browser ...
... 1) Network-Aware Applications: Some end-user applications are network-aware, meaning that they implement the application layer protocols and are able to communicate directly with the lower layers of the protocol stack. Ex: Email client, web browser ...
Controlling and Monitoring Audio Systems with Simple Network
... SNMP requires a variable be polled in order to observe changes. LonTalk does the work of monitoring network variables for changes thus freeing applications from the overhead of doing so. This magic comes at the cost of increased complexity, however. LonTalk was designed to be carried by a proprietar ...
... SNMP requires a variable be polled in order to observe changes. LonTalk does the work of monitoring network variables for changes thus freeing applications from the overhead of doing so. This magic comes at the cost of increased complexity, however. LonTalk was designed to be carried by a proprietar ...
Network+ (N10-005) Cram Notes
... Routing is the process of directing the messages generated at source host towards the destination host over a computer network. The path may consist of several nodes that forward the messages (packets) towards the destination. Due to complexity of the protocols, and user requirements, several routin ...
... Routing is the process of directing the messages generated at source host towards the destination host over a computer network. The path may consist of several nodes that forward the messages (packets) towards the destination. Due to complexity of the protocols, and user requirements, several routin ...
Detailed Crosswalk
... Instructor Pack CD Activity 2: New Subsidiary Network Status Assessment (part 1) ...
... Instructor Pack CD Activity 2: New Subsidiary Network Status Assessment (part 1) ...
3rd Edition: Chapter 4
... routers establish virtual connection routers get involved network vs transport layer connection service: network: between two hosts (may also involve inervening routers in case of VCs) transport: between two processes ...
... routers establish virtual connection routers get involved network vs transport layer connection service: network: between two hosts (may also involve inervening routers in case of VCs) transport: between two processes ...
IPv4 Addressing - User Web Areas at the University of York
... All zeros. You might think this one should mean “me”. It does, but only when the node doesn’t know its own IP address, and it’s only ever used as the source IP address, so it could perhaps more accurately be described as “I don’t know yet”. If you want to send a packet to yourself, and you don’t kno ...
... All zeros. You might think this one should mean “me”. It does, but only when the node doesn’t know its own IP address, and it’s only ever used as the source IP address, so it could perhaps more accurately be described as “I don’t know yet”. If you want to send a packet to yourself, and you don’t kno ...
Adaptive Fairness through intra-ONU Scheduling for Ethernet
... Voice over IP (VoIP). The high-priority class is EF, which is delay-sensitive and requires bandwidth guarantees. The medium-priority class is AF, which is not delay-sensitive but requires bandwidth guarantees. The low priority class is BE, which is neither delay-sensitive nor bandwidth guaranteed. A ...
... Voice over IP (VoIP). The high-priority class is EF, which is delay-sensitive and requires bandwidth guarantees. The medium-priority class is AF, which is not delay-sensitive but requires bandwidth guarantees. The low priority class is BE, which is neither delay-sensitive nor bandwidth guaranteed. A ...
The following paper was originally published in the
... streams associated with a particular application or an application-layer protocol like HTTP; whereas transformer tunnels force adaptations on all the packets passing through them. This feature is required for link dependent adaptations that need to control the way packets are transmitted (for exampl ...
... streams associated with a particular application or an application-layer protocol like HTTP; whereas transformer tunnels force adaptations on all the packets passing through them. This feature is required for link dependent adaptations that need to control the way packets are transmitted (for exampl ...
Lecture Note Ch.20
... Responsibility ◦ Host-to-host delivery ◦ For routing packets through the router and switches. ...
... Responsibility ◦ Host-to-host delivery ◦ For routing packets through the router and switches. ...