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Voice Traffic QoS Lab
Cisco CCENT CCNA CCNP Voice Lab Kit
Cisco2650 Cisco1721 Cisco WS-C3560-24PS-S Inline Power Switch
ICND1v2 &ICND2v2 200-120 200-101 100-105
Total Items Included in This Auction
1 x Cisco 2650 Series Router 32F/128D 12.4 IOS c2600-ipvoice-mz.124-1a.bin
1 x Cisco WS-C2960-24 or C3750 Port 10/100 Inline Power Switch
2 x Cisco1721 Routers 8F/16D 12.1 IOS
4 x Cisco WIC-1T Interface Module Card
2 x Cisco CP-7940G (or other Cisco) Phones (working but very rough condition )
2 x Serial Cat5 Connection Cable
3 x Ethernet Cable
1 x Console Cable
6 x Power Cable
Installed with working Call Manage Express CME 4.0. This lab is intended for SIP trunking to access the outside PSTN so you can call in and out anytime. Plus QoS video to demonstrate how to control voice traffic over WANs with QoS.
No legacy analog ports included in this lab because SIP trunking is cheaper and better.
Add legacy 2xFXS & 2xFXO for an additional $90 and run in the 2650 router.
This lab is an excellent introduction to Cisco CME Call Manager
Express SIP based software PBX.
Most QoS instruction is awful, the worst I have ever seen, turning a subject of average difficulty into a total train wreck giving the student to impression QoS is more difficult than it really is. The goal of this lab is to provide tools and information to master Cisco QoS. DVD includes video demonstrating how to implement Cisco QoS and more importantly you can use this lab
to practice QoS technologies in support of voice traffic. You can reduce
the bandwidth of the T1 interfaces down to 56k, jam them with traffic, and use QoS to make a clear path for you voice traffic over the congested links.
Queueing and Congestion Management
Congestion Avoidance Weighted Random Early Detection (WRED)
Policing and Shaping
Quality of Service (QoS) Frame Relay
Quality of Service (QoS) Over Asynchronous Transfer Mode (ATM)
Voice and Quality of Service (QoS)
Related Information
Related Cisco Support Community Discussions
Quality of Service (QoS) is
QoS is a collection of technologies which allows applications to
request and receive predictable service levels in terms of data
throughput capacity (bandwidth), latency variations (jitter), and delay.
In particular, QoS features provide better and more predictable network
service by the following methods:
Supporting dedicated bandwidth.
Improving loss characteristics.
Avoiding and managing network congestion.
Shaping network traffic.
Setting traffic priorities across the network.
The Internet Engineering Task Force (IETF) defines the following two architectures for QoS:
Integrated Services (IntServ)
Differentiated Services (DiffServ)
IntServ uses the Resource Reservation Protocol (RSVP) to signal
explicitly the QoS needs of an application's traffic along the devices
in the end-to-end path through the network. If every network device
along the path can reserve the necessary bandwidth, the originating
application can begin transmitting. Request for Comments (RFC) 2205
defines RSVP, and RFC 1633 defines IntServ.
DiffServ focuses
on aggregated and provisioned QoS. Instead of signaling an application's
QoS requirements, DiffServ uses a DiffServ Code Point (DSCP) in the IP
header to indicate the required QoS levels. Cisco IOSĀ® Software Release
12.1(5)T introduced DiffServ compliance on Cisco routers. For more
information, refer to the following documents:
Integrated Service in Cisco IOS 12.1
Implementing DiffServ for End-to-End Quality of Service
Implementing Quality of Service Policies with DSCP
An
interface experiences congestion when it is presented with more traffic
than it can handle. Network congestion points are strong candidates for
Quality of Service (QoS) mechanisms. The following is an example of
typical congestion points:
Classification and Marking
IP precedence
QoS
pre-classification enables you to match on and classify the original IP
header contents of packets undergoing tunnel encapsulation and/or
encryption.
Configuring QoS for Virtual Private Networks
Quality of Service for Virtual Private Networks, 12.2(2)T Feature Module
The
class-based marking feature allows you to set or mark the layer 2,
layer 3 or Multiprotocol Label Switching (MPLS) header of your packets.
For more information, refer to the following documents:
Yes.
Network Based Application Recognition (NBAR) allows you to classify
packets by matching on fields at the application layer. Prior to the
introduction of NBAR, the most granular classification was layer 4
Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)
port numbers. For more information, refer to the following documents:
Network-Based Application Recognition Q&A
NBAR Application Networking
Using Network-Based Application Recognition and Access Control Lists for Blocking the Code Red Worm
How to Protect Your Network Against the Nimda Virus
Support
for NBAR is introduced in the following versions of Cisco IOS software
on most platforms in 12.1(5)T You need to enable Cisco Express
Forwarding (CEF) in order to use NBAR.
Queueing is designed to
accommodate temporary congestion on a network device's interface by
storing excess packets in buffers until bandwidth becomes available.
Cisco IOS routers support several queueing methods to meet the varying
bandwidth, jitter, and delay requirements of different applications.
The
default mechanism on most interfaces is First In First Out (FIFO). Some
traffic types have more demanding delay/jitter requirements. Thus, one
of the following alternative queueing mechanisms should be configured or
is enabled by default:
Weighted Fair Queueing (WFQ)
Class-Based Weighted Fair Queueing (CBWFQ)
Low Latency Queueing (LLQ), which is in fact CBWFQ with a Priority Queue (PQ) (known as PQCBWFQ)
Priority Queueing (PQ)
Custom Queueing (CQ)
Queueing
generally happens on outbound interfaces only. A router queues packets
that are going out an interface. You can police inbound traffic, but
usually you cannot queue inbound (an exception is receive-side buffering
on a Cisco 7500 Series router using distributed Cisco Express
Forwarding (dCEF) to forward packets from the ingress to the egress
interface; for more information, refer to Understanding VIP CPU Running
at 99% and Rx-Side Buffering. On high-end distributed platforms such as
the Cisco 7500 and 12000 Series, the inbound interface may use its own
packet buffers to store excess traffic switched to a congested outbound
interface following the inbound interface's switching decision. In rare
conditions, typically when the inbound interface is feeding a slower
outbound interface, the inbound interface can experience incrementing
ignored errors when it runs out of packet memory. Excessive congestion
can lead to output queue drops. Input queue drops have a different root
cause most of the time . For more info on troubleshooting drops, refer
to the following document:
Also included a BONUS DVD.
This DVD gives you:
1. Complete practice labs which can be easily accomplished on the equipment you purchase.
2. Instructional material including current books and videos so you can understand what to do.
3. Utilities such as SDM software/TFTP software/Console Emulation that you will need to manage and configure the equipment.
CCNA Routing and Switching
CCNA
Composite Exam: The 200-120 is the composite exam associated with
the Cisco CCNA Routing and Switching certification. This exam tests
a candidate's knowledge and skills required to install, operate, and
troubleshoot a small to medium size enterprise branch network. The
topics include all the areas covered under ICND 1 and ICND2
Exams.
640-802 CCNA Composite
640-822 ICND1
640-816 ICND2
The exams
above have been now replaced with the following exams:
200-120 CCNA Composite
100-105 ICND1
200-101 ICND2
To obtain a CCNA Routing and Switching you must
pass two written exams or one composite exam.
Interconnecting
Cisco Networking Devices Part 1 (ICND1v2)
Interconnecting Cisco
Networking Devices Part 2 (ICND2v2)
200-120 CCNA Composite
Both
focus on providing the skills and knowledge necessary to implement
and support a small switched and routed network.
Please
contact us at contact me via eBay if you have any question. This is a
complete solution including the study material you need to begin
practicing on the day you receive the lab.
Students review your study material and look for the model numbers of routers and switches being used in books and classes. Then we can tailor a lab to fit your exact needs. If you are setting up your lab and get stuck, call us. A problem that may take you two days to solve may be solved over the phone in an hour. Everything seems difficult the first time when it is new and strange but gradually becomes second nature.
Our feedback says it all. We support our buyers after their purchase with any help they need. We offer a 30 day warranty on all CCNA CCNP and CCIE labs, parts and equipment sold. Every machine and every port are carefully and fully tested and come with a printout. Used lab equipment often has cosmetic blemishes but are 100% functional.
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We are a large reseller of used Cisco networking equipment based in Southern California. We are a stocking broker and every item listed for sale is already in stock, tested and ready to ship. We are happy to source equipment at the buyers request if we don't have the item in hand.
More than 14 years of experience testing and upgrading Cisco. Every used Cisco router or switch and every port is tested and comes with a test printout.
We offer a complete line of CCNA, CCNP and CCIE study labs listed in our other auctions. We also carry a complete line of individual items including Cisco study lab, back to back serial, CAB-6060, ethernet and console cables, rack mounts, AUI, GBIC transceivers, flash & DRAM memory, slot covers, 12U racks, WIC interface cards, NM Modules, and every Cisco router or switch needed.
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International, HAWAII, ALASKA, Puerto Rico bidders, shipping cost stated in the auction is for anywhere within the 48 states of the United States. Please email us prior to buying for specific shipping cost.
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Most of our CCNA CCNP buyers are students and still learning how to access, configure and manage Cisco equipment. Nothing we sell is simple or easy to use unless you already have experience with Cisco IOS and networking equipment. Occasionally student customers even have problems with items as simple as console cables.