administering cisco qos in ip networks

... Random Early Detection ■ Using Generic Traffic Shaping and Frame Relay Traffic Shaping ■ Running in Distributed Mode ■ Using Link Fragmentation and Interleaving ■ Understanding RTP Header Compression ... Trang 1Advanced QoS OverviewSolutions in this chapter: ■ Using the Resource Reservation Protocol ■ Using Class-Based Weighted Fair Queuing ■ Using Low Latency Queuing ■ Using Weighted Random ... NOTE In 1993, the Internet Engineering Task Force (IETF) started working toward standardization through an RSVP working group Version 1 of this protocol is currently defined by RFC 2205 Interested

Ngày tải lên: 06/07/2014, 07:31

... 1Configuring Advanced QoSSolutions in this chapter: ■ Enabling, Verifying, and Troubleshooting RSVP ■ Enabling, Verifying, and Troubleshooting CBWFQ ■ Configuring, Verifying, and Troubleshooting ... ■ Configuring, Verifying, and Troubleshooting WRED ■ Configuring and Verifying GTS and FRTS ■ Understanding Distributed Technologies ■ Configuring, Verifying, and Troubleshooting Link Fragmentation ... classes Enabling CBWFQ There are three major steps in configuring CBWFQ: 1 Defining class maps 2 Creating policy maps 3 Attaching policies to interfacesClass maps determine what traffic goes into what

Ngày tải lên: 06/07/2014, 07:31

... original methods of providing QoS markingwithin networks It provides a method of marking packets not by destination, butrather by originating source, be this address or port, and applying defined ... Traffic ■ Marking and Rate Limiting ISPs ■ Configuring Cisco Express Forwarding (CEF) ■ Configuring Basic Network-based Application Recognition (NBAR) ■ Configuring Complex NBAR ■ Integrating NBAR ... 1Configuring Traffic ClassificationSolutions in this chapter: ■ Configuring Policy-based Routing (PBR) ■ Defining and Configuring Committed Access Rate (CAR) ■ Marking and Transmitting Web Traffic

Ngày tải lên: 06/07/2014, 08:14

... (RSVP) and intel-ligent queuing RSVP is currently in the process of being standardized by theInternet Engineering Task Force (IETF) in one of their working groups con-Intelligent queuing includes ... Trang 1Introduction to Quality of Service Solutions in this chapter: ■ Defining Quality of Service ■ Understanding Congestion Management ■ Defining General Queuing Concepts ■ Understanding Congestion ... follow in later chapters in the book.We will examine the fol-lowing congestion management techniques: ■ First in First Out Queuing ■ Priority Queuing ■ Custom Queuing ■ Weighted Fair Queuing (WFQ)Many

Ngày tải lên: 09/08/2014, 14:21

... Protocol Type Port Description Number Command EGP GRE ICMP IPINIP IPSec IP IP IP IP IP 8 47 ... IPSec IP IP IP IP IP 8 47 1 4 50, 51 egp gre icmp ipinip ipsec EIGRP IP 88 Exterior Gateway ... Solutions in this chapter: ■ Introducing Type of Services (ToS) ■ Explaining Integrated Services ■ Defining the Parameters of QoS ■ Introducing the Resource Reservation Protocol (RSVP) ■ Introducing ... becoming mission critical to the networking world. Integrated Services (Intserv) is one of the primary attempts to bring QoS to IP networks.The Intserv architecture as defined in RFC1633 and the Internet

Ngày tải lên: 09/08/2014, 14:21

... BGPpeers can, with a single peering session, exchange reachability information onmultiple AFs, such as IPv4, IPv6, and IPX, ,as well as subAFs, for instance, unicastand multicast Finally, BGP4 provides ... Functionality of BGPBGP works like any other routing protocol by maintaining routing tables, exchanging routing updates with peer routers, and making routing decisionsbased on BGP and neighbor parameters ... the Internet, as well as a means to address the IP, version 4, address spacedepletion problem.This concept is called classless interdomain routing (CIDR)and is explained in the CIDR sidebar in

Ngày tải lên: 09/08/2014, 14:21

... Trang 1ISSUES IN IP NETWORKSAURBIND SHARMA NATIONAL UNIVERSITY OF SINGAPORE 2005 Trang 2INVESTIGATIONS INTO MICROMOBILITYISSUES IN IP NETWORKS BY AURBIND SHARMA A THESIS SUBMITTEDFOR ... needs to be maintained atevery node in the micro-mobility domain, containing entries for every MN in the domain.Moreover, every node in the domain has to implement the protocol, hampering gradualdeployment ... knownproposals for micromobility in IPv6 networks are HMIPv6 [46] and CIPv6 [28] A fun-damental feature of micromobility protocols in IPv4 is the use of private addressing insidethe domain This effectively

Ngày tải lên: 08/11/2015, 17:08

... 802.11e  Formed in Sep 1999 TheQoSbaseline document was approved in November 2000 The first draft was available in late 2001.  Aim to support both IntServ and DiffServ  New QoS mechanisms ► ... of new location information which degrades the quality of service  Solved by introducing access point probing functionality in the mobile node to identify the current access point it is attached ... (Hybrid Coordination Function)  Backwardly compatible with the DCF and PCF Trang 6 QoS is realized by introducing traffic categories (TCs)  MSDUs are delivered through multiple backoff instances

Ngày tải lên: 05/07/2022, 13:23

... All-IP basis pose new challenges to congestion control TCP congestion control and its enhanced variations such as ECN [2] or RED [3] seem to be quite effective in sustaining the stability in ... methods, in order to propose essential criteria, which could be used for design of a comprehensive framework for analyzing and evaluating various congestion control methods as well as for improving ... hơn đối với Điều khiển chống tắc nghẽn trong các mạng NGN – toàn IP Congestion Control in NGN – All IP Networks Cao Huy Phương, Hoàng Đăng Hải Trang 2mạng NGN? Những tiêu chí có thể đặt ra

Ngày tải lên: 24/12/2013, 07:16

... Quality of Service (QoS) provisioning to (1) assess the relevance of using mul- tipath routing to improve the reliability and packet delivery in wireless sensor networks while maintaining lower power ... sensor networks. There are two basic activities involved in the routing process: optimal routing paths determination using routing algorithms and packets transportation using the optimal routing ... levels and (2) proposing an implementation model supporting QoS in WSNs. The main contributions of this work are twofold. WSN QoS Modelling. Firstly, building upon the works done in [21, 22], we formulate

Ngày tải lên: 21/06/2014, 17:20

... important issue in communicationnetworks, especially in optical backbone networks, since a huge amount of traffic is Trang 342.2 IP OVER WDM NETWORKScarried in those networks A single failure can ... multiple paths It is an effective traffic engineering mechanism to improve performance in terms ofblocking probability or congestion in networks such as Multi-Protocol Label Switch-ing (MPLS) networks ... formulate integerprogramming models to minimize the total power consumption of the net-work, they are Integer Linear Programming (ILP) for affine power profile andInteger Quadratic Programming (IQP)

Ngày tải lên: 09/09/2015, 08:12

... transporting IP traffic over WDM networks In this model, IP traffic is carried by ATM connections which are multiplexed into SONET connections, which in turn are multiplexed into lightpaths In this ... proposing/adopting various solutions/techniques are described briefly Two types of networks, constrained grooming networks and sparse grooming networks, havebeen distinguished in [47] In the ... technologies in both the IP andoptical networks Integrated model or Peer model Unlike the overlay model, a unified control plane is maintained in integrated IP-over-WDMmodel, where an IP router

Ngày tải lên: 12/09/2015, 08:20

... Networks 7 1.4.1 Separate Routing in IP-over-WDM Networks 7 1.4.2 Integrated Routing in IP-over-WDM Networks 8 1.5 Survivability in IP-over-WDM Networks 9 1.5.1 WDM Layer Protection ... within the opticaldomain, and the other between the optical domain and the IP domain (called theuser-network interface, UNI) The IP domain acts as a client to the optical domain.The IP/MPLS routing ... logical links by the backup path varies Integrated routing is ableto take this into consideration in the backup path selection by applying based routing in favor of logical links requiring less

Ngày tải lên: 16/09/2015, 15:23

... wavelengths as in integrated IP/WDM networks. 2.5 Load Balancing in IP/MPLS networks The load balancing issue has been studied in IP/MPLS networks. In [40], a multipath adaptive traffic engineering mechanism, ... routing, which is independent of the IP layer routing, and LSPs routing in the IP layer, integrated routing of LSPs in a IP/WDM network integrates the IP layer and the optical layer routing instances ... wavelength. 2.2 Integrated Routing of LSPs in IP/WDM Networks Recently, the problem of dynamic integrated routing of bandwidth-guaranteed LSPs in integrated IP/WDM networks taking into account the link

Ngày tải lên: 04/10/2015, 17:06

... simultaneously and the intercall-burst interval (in milliseconds or seconds) The intercall-burst interval enables processing of all incoming call requests in multiple stages using the existing hardware ... AUTOMATION OF CALL SETUP IN IP TELEPHONY FOR TESTS AND MEASUREMENTS1 In IP telephony, a call is usually established in multiple stages In the first stage, an ingress or call-originating IP-PSTN GW is accessed ... HVB is shown in Figure B-3 In this example, the script that is making an outgoing call is running on channel [indicated by the parameter chanId( )], and the script that will be receiving that call

Ngày tải lên: 30/09/2013, 07:20

... MEASUREMENT IN IP TELEPHONY1 In IP telephony, a voice call is usually established through multiple stages In the first stage, a phone number is dialed to reach a near-end or call-originating or ingress IP-telephony ... measuring the call setup performance of IP-PSTN GWs (E: Ethernet link; T1: CAS or PRI link; BRI: basic rate interface links NTS: network time server; it provides timing information (clock) to IP ... of dialing so that the beginning of the next stage of dialing can be detected If an IVR file is played then, any indication of ‘‘voice begin’’ can be used as an indication of the beginning/end

Ngày tải lên: 30/09/2013, 07:20

... Engineering Blekinge Institute of Technology SWEDEN Trang 6© 2006 Stefan ChevulDepartment of Telecommunication Systems School of Engineering Publisher: Blekinge Institute of Technology Printed ... directed towards gaining a better understanding of how the networkinfluences an application’s perception of QoS by investigating the application-perceived throughput The main focus of this thesis ... Stefan Chevul Wireless and Mobile Internet have changed the way people and businesses operate Communica-tion from any Internet access point, including wi-reless networks such as UMTS, GPRS or WLAN

Ngày tải lên: 18/10/2013, 12:15