Member Ideas

610 votes

NX-OS Topics

Create a course with NX-OS Topics.

536 votes

Troubleshooting labs

It would be great if we could get some basic to more advance troubleshooting across the core technologies EIGRP/OSPF/BGP/MPLS/Multicast. That really reinforces the foundation that I am learning and get a deeper understanding of these technologies.

425 votes

Wireshark Tutorial

A lot of your topics show you capturing traffic via Wireshark. Create a topic(s) exclusively on how to effectively use Wireshark.

368 votes

SDN Topics

Create a Course with basic concepts of Software defined networking.

366 votes

Python Scripting for networks

How to write scripts for multiple config changes/backups.

320 votes

MPLS Traffic Engineering

1. How the MPLS can offer the Traffic Engineering by priority the VOIP traffic
2. How the MPLS TE can use the optimal path to priority the traffic

226 votes


Nexus Switches & DC conecpts

214 votes

VPLS Lessons.

Hi Rene,

Appreciate if you can create some lessons on VPLS.



196 votes

VXLAN and Spine-Leaf Architecture

In the space of ever evolving datacenter design, i feel its time to get hands dirty with some deep understanding of various use cases of spine-leaf w/ VXLAN and few design examples..

please see if you can add any tutorials that explains,

Spine-leave design

182 votes

Nexus Overview

Please help to upload topics on Nexus.

168 votes

Data Center/Branch Network


I would like to ask if you can make a scenario where you emulate a HQ data center which consists of a WAN Router which is connected to MPLS with ebpg between the CPE and PER routers and then suggest if we should either do redistribution or ibgp/ospf/eigrp for our IGP protocol to have bidirectional connectivity. Also add a firewall/router which is connected to the internet and you have one or two branches connection back to it through a vpn/gre tunnel and best practices on how to configure these sites.

I would like to see more scenario which we see often in real world production environment. Thanks

163 votes

Linux Administration for Networkers

Create a course for administering/manage Linux for network engineers.
This course should cover how to manage your network from a Linux box
teach the commands, scripts and tools usually run from a Windows machine, but from a Linux machine or OS. Please include running wireshark. Thank you

153 votes

Develop an study case from the ground up

Plan and implement a network design and configure each device from the begining :
begin with one main office and, as if was not planned add 1-2 branch offices, solving the challenges (and reconfiguring the devices as).
Begin with a not too much complex case: 2 switches (3-4 departments) and 1 router with internet access, then adding another switch, another department, make vlan, secure port, secure access, and then adding another internet connection, then adding a new little branch office and perhaps a second one with different protocol ) . Because it perhaps will get to big, perhaps will be nice to begin with a base scenario and make some child scenarios …

134 votes


Lessons for Cisco Voice

121 votes

Cisco WLC

install and configuration Cisco (v)WLC. Explanation of Basics, Flexconnect, and so on.

117 votes


Cisco ISE and WLC integration

106 votes


We want to start learning juniper from basic too.

106 votes


Create a course for ASA FW: Configure VPNs
Include site-site, and Anyconnect; make sure it covers the new Cisco Anyconnect Secure Mobility Client 4.0 Thanks

104 votes

Leaking between Vrf’s

Leaking between Vrf and Leaking vrf and Global Table

103 votes

MPLS Advance Route Target Import/Export

Advance route target import / export between the VRF and also allow the VRF leak to the internet cloud

88 votes

Cisco Security: CCSA/CCSP

Create a course for Cisco Security Associate/Security Professional
This course should cover the topics need to pass the CCSA course. Thanks

80 votes

Datacenter Design and deployment

As the design of the network has gone through tremendous changes with new virtualization technologies and cloud computing scenarios, it would be great to see articles discussing latest network deployment scenarios

78 votes

Create Flash Cards

Create flash cards for CCNA / CCNP / CCIE R&S that you can use on mobile devices for offline studying / memorization.


76 votes


Hello.When can we expect to see a course on CCNA security?

66 votes


– Moving access management to FireSIGHT/FirePOWER.
– Troubleshooting from FireSIGHT
– IPS/AMP etc.

60 votes

GRE vs IPSec Differences

Please discuss the concepts of GRE and IPSec, the pros and cons of each, with an implementation example along with the standard content which you have made for other course topics – basics, troubleshooting, step by step analysis of the packet headers and command outputs.

56 votes

CCNP Route lab

Dear Rene;
kindly create following labs for CCNP Route and explain it in your excellent way

EIGRP OSPF Redistribution Sim
EIGRP Evaluation Sim
Policy Based Routing Sim
IPv6 OSPF Virtual Link Sim
EIGRP Stub Sim

it will helps us a lot..

56 votes


Create a course for iWAN Deployment:
Cisco Intelligent WAN, Thanks See cisco url below

55 votes

Palo alto firewall

Please create a course on Palo alto firewall. This device is hot now a days and have ultimate features.

54 votes

Cisco Voice – CCVA/CCVP

Create a course for CCVA/CCVP to cover Cisco VoIP Fundamentals;
Include CUCM and IP Unity.

53 votes

MST PVST Simulation and Tunnelling between Regions

Explain MST’s backwards compatibility, PVST Simulation and how MST regions can tunnel across PVST domains. You briefly spoke on these topics here.

52 votes

Data Center Technology

vxlan and LISP 101 would be good

51 votes

Performance Routing (PfR)

-Basic Overview of technology for the different versions as well as configuration and validation commands/explanations
-Cover CCIE Blueprint areas of “basic load balancing and voice optimization”

51 votes


Wireless installation ,deployment and troubleshooting

50 votes


IP SLA setup and troubleshooting including how to get IP SLA to flip over to other routes when protocol is up but there is an issue.

47 votes

Cisco Wlc Installation and configuration

Explain Cisco vWlc Installation and configuration. Explaintation Flexconnect, Local Switching and so on…

45 votes

Data Center Topics

Create a course with IOS-XE, IOS-XR and NX-OS Topics.

45 votes


A simple tutorial on how Radius works where is it used and important protocols involved with it

42 votes

Load balancer

Understand and Configure Load balancers

40 votes


Data Center connectivity using Cisco Nexus

38 votes


Create a course with Call Manager

37 votes


Hello Rene,

Please excuse me if there is a topic for this but i couldn’t find it. I think that it will be great if there is an article explaining how to configure route-maps with access lists/prefix lists – to be more specific what does the permit in the acl do when there is a deny in the route-map and vice versa.

35 votes


Hello, I am really impressed by this website and I think it would be really nice if you can create lessons on topics of security from scratch, like what are firewalls? why we need them,? How they work and going in depth with Palo Alto and ASA.Adding lessons for F5 load balancers would be also very nice.

35 votes

Related on BGP/MPLS

How to export vrf received route into RiB using bgp.

32 votes


Hello Rene,
first of all, I highly appriciate the simplicity how you are explaining every topic. You are bringing high amount of value. I would recommend to anybody that if they don`t understand some topic, than it is good idea to look on your explanaition for sure 🙂

Anyway, I have studied here QoS and I think that there are few topics missing :
– Queuing (FIFO/WFQ/CBWFQ …. ) it would be nice to have these explained …
– in general it would be nice to have some split in these .. that what is Congestion Management / Conegstion Avoidance .. when and what take places … you know, something in “your style” would be appreciated …

Thank you and wish you luck on your path !


30 votes

All L2VPN Topics

This this is huge demand in real time networks, please help us mastering this topic.

30 votes

Multicast vpn over mpls

How to configuration multicast over mpls, using ssm, no Rp, static mroute, fallback-lookup global.

29 votes

Nexus Switches, VDC

The Nexus devices are very hot in the market. A good description on its working and configuration will be great. Also, VDC is something related to Configuration of these devices some explanation would be of much help.

29 votes


Debug has so many options and just about everything has a debug, there is a keyboard shortcut for ending all debug operations, which I always forget. Also which kind of connection you have limits what you see, i.e. direct console or ssh. I would like to see an article just on debugging. I haven’t actually looked for this so you might have already covered it, this is just what came to mind while on this page.

28 votes

BGP Path Selection

I’ve not been able to find anything definitive on the site regarding how BGP selects which path to take/which attributes it prefers over others. It would be great to have a few examples or a video explaining this, to help when troubleshooting real-world scenarios.

26 votes

Deploying Cisco 5508 Wireless Controllers

Explanation of the different interface types, initial config and bringing a WLC online, AP Groups and Mobility Groups (redundancy).

26 votes


Hi it would be great if you can start tutorial on ipv6.

25 votes

More ASA topics

Failover, Twice NAT, DNS Doctoring

25 votes

VPLS and Pseudowire Circuits

Create a course with VPLS and Pseudowire connections.

24 votes

Linux beginner and advance understanding

Starting from basic fundamentals of Linux to the advance levels of scripting and understanding.

24 votes

7.0 Evolving Technologies to add to the CCIE R&S Section 🙂

7.1 Cloud
7.1.a Compare and contrast Cloud deployment models
7.1.a [i] Infrastructure, platform, and software services [XaaS]
7.1.a [ii] Performance and reliability
7.1.a [iii] Security and privacy
7.1.a [iv] Scalability and interoperability
7.1.b Describe Cloud implementations and operations
7.1.b [i] Automation and orchestration
7.1.b [ii] Workload mobility
7.1.b [iii] Troubleshooting and management
7.1.b [iv] OpenStack components
7.2 Network programmability [SDN]
7.2.a Describe functional elements of network programmability [SDN] and how they interact
7.2.a [i] Controllers
7.2.a [ii] APIs
7.2.a [iii] Scripting
7.2.a [iv] Agents
7.2.a [v] Northbound vs. Southbound protocols
7.2.b Describe aspects of virtualization and automation in network environments
7.2.b [i] DevOps methodologies, tools and workflows
7.2.b [ii] Network/application function virtualization [NFV, AFV]
7.2.b [iii] Service function chaining
7.2.b [iv] Performance, availability, and scaling considerations
7.3 Internet of Things
7.3.a Describe architectural framework and deployment considerations for Internet of Things [IoT]
7.3.a [i] Performance, reliability and scalability
7.3.a [ii] Mobility
7.3.a [iii] Security and privacy
7.3.a [iv] Standards and compliance
7.3.a [v] Migration
7.3.a [vi] Environmental impacts on the network

24 votes

Metro Ethernet Circuits …

Hi Rene ,
a course on metro ethernet would be great …

23 votes

Cisco Data Center

Cisco Data Cent has became one of the important subjects in the notwork filed including UCS , NX-OS .. etc

22 votes

IOS-XR Fundamentals

Hey would it be possible to get an introduction to IOS XR?

22 votes

OSPF route filtering

For CCIE lab it is important to know all kinds of filtering and traffic engineering methods within OSPF. I find it very difficult to have a nice overview of all the techniques used to filter in OSPF. Filtering based on stub areas, filtering based on OSPF database, summarization filtering, default routes, etc.. It would be nice to have all the different types of methods explained with examples.

21 votes

Ethernet Fabric (Fabric Path)

Lesson about how works and configure Ethernet Fabric/ FabricPath

19 votes

Cisco Waas

Hi , i wish we can have o quick overview of Cisco Waas , thank you

19 votes

Nexus 9K VPC configuration

do you have a lesson on this?
if not, can you make one?

Thank you very much

19 votes

IKEv1 and v2 transaction

Would be better if we can get some IKEv1 and v2 state machine details

19 votes


i would like to you create some topic about Routing on IOSXR

18 votes

IKEv2 between ASA & Router

It will be great, if you write an article IKEv2 Tunnel between ASA & Router.

18 votes

Cisco Data Center

Create Course for Cisco Data Center or at least create topics like Cisco ACI and APIC , Spine and Leaf , FabricPath, OTV , and other data center technologies.

17 votes

BGP Site of Origin (SOO)

Please create a lesson on BGP site of origin and the scenario(s) it will be applicable to use it.

17 votes

Redistribution between different OSPF processes

What are the reasons for doing redistribution between multiple OSPF processes, and how we do that with some examples

17 votes

CCNA & CCNP Security

a coursework for Security certifications

16 votes

How works IPTV

A brief description about how works an IPTV application

16 votes

CCDP lessons & CCNP service provider lessons

I’m taking the ARCH 300 – 320

It’d also be very practical to have CCSP
it would have been cool to have them here !

15 votes


Explaining DHCP in Detail

15 votes

Please do include TCP Flags and troubleshooting based on Logs in ASA firewall

If you Can include the lessons about TCP flags ,Since in the real-time world we need to check the Show Connections , based on the output we need to identify whether it is inboud/outbound and need to Understand how the TCP Connection got Closed with Reset-I ,Reset-O,TCP FINS, FIN-Timeout etc.., These information is not available in any of the Cisco ASA Videos, IF you Can explain these Concepts with Examples and Sample Scenarios its Fantastc Rene.

14 votes

Lab of the week

Design weekly labs on random topics that present a topology and problem. Members submit their solution by the deadline. The member who found the most concise solution gets a member of the week award. This would keep all members active and interested.

14 votes


You can have a topic about supervisors and difference between them.

14 votes

Practice Questions

I think a handful of practice questions for each subject with detailed explanations would be a very good thing to do. This will help to reinforce the concepts and help towards being ready for questions on the real exams. They should be similar in difficulty to the real test questions.

14 votes


FLEXVPN is a recent Cisco Technology that employs IKE2. Very similar to DMVPN but apparently superior.

Lessons that explain and demonstrate the technology as well as a comparison between DMVPN and FLEXVPN would be of value.

14 votes


Couldn’t find info about L2VPN / L3VPN. Could you please create one lesson to cover this topic? Thanks.

13 votes

MAC Flapping

Create Lessons about MAC flapping between port and how it happen and how to solve this problem

13 votes

CCNA Security

Lessons for CCNA security

12 votes

Segment Routing

How segment routing can be used as an alternate of LDP and RSVP.

12 votes

Service Provider topics

Hi Rene, When would you start Service Provider related material. it is very much needed to get a whole picture of networks.


12 votes


Lesson that explains the technology and how to configure it.

11 votes

VLAN Internet access

Configuration to Granting or restrict Internet access to VLANS

11 votes


such as iWAN

This could be a topic in the CCIE R&S.

Thank you!

11 votes


Can you please explain how SDN can take our Network engineer jobs in the future. Do we reali have to learn programming. how SDN will change the networking. Is it for big companies or small companies will also adapt SDN?

11 votes

Service Provider

I reckon Service Provider lessons would be a good addition. Thats my career path and would be happy if I can learn it hear.

11 votes

Compare all different types of VPNs (like Ezy VPN, DMVPN, Flex VPN, MPLS etc)

Compare all different types of VPN (like Ezy VPN, DMVPN, Flex VPN, MPLS etc)
1) Configure between routers(site-to site).
2) Points for comparison.
3) Monitoring VPNs performance
4) QoS methods to improve performance.
5) Certificate implemtation for VPN traffic

11 votes

Route Map with multiple BGP communities

Would love to see how the decision of the traffic flow based on Route Map with more than one BGP community at the same time in action. Will be nice to have a full demo on this.

11 votes

CCNA Collaboration

Hello Rene is there a possibility to create lessons in de Voice topic.

11 votes

CCIE RS written

Would you add the following topics onto your CCIE RS written lessons?
1) Evolved Technologies
2) IoT
3) Cloud

10 votes

UNL ( Unified Networking Lab )

Create lesson about UNL and how to use it and how to join it with GNS3 lab or with physical lab and how to use CCP with UNL as well as anything related to this topic

10 votes

Brocade ICX and VDX

Can you add a quick tutorial for Brocade switches please?

10 votes

Network Design Course

I think it would be great if you can create CCDA course

10 votes


Fibre channel over Ethernet

10 votes

BGP Aggregator-Address

BGP Aggregator Address,

10 votes

NX-OS Topics

NX-OS Topics

10 votes

Twice NAT

I’ve heard that we do this on our firewalls to prevent stepping on remote and destination addresses. Not sure how we can set this up on the ASA though.

9 votes

DNS Records & zones

Create lessons that describe DNS records types and zone transfer

9 votes


This is a very hot topic in networking and it would be great to have a lesson on it!

9 votes

MPLS route configuration

How are MPLS routers configured? Can we lab them on GNS 3 ?

9 votes

Lesson on PPPoE and L2TP

HI Rene,

Can you pls create a lesson on PPPoE and L2TP which describes in detail of both the protocols.

8 votes

VIRL -labs-basic/intermediate configuration

I love VIRL but I am not that great with it. I am not that fond of their forums either. would be great to have some basic and intermediate labs setup in VIRL so that we can follow and use VIRL. not talking about installing VIRL and setting it up I am talking about using it for CCNA and CCNP and up.

8 votes

TRILL or CISCO FrabricPaths

Hello, Expert
Is there any possibility to provide a lesson on this topic?

8 votes

Checkpoint session

I have gone through ASA topic. it could be great if you create some session on checkpoint firewall.

8 votes

EIGRP Computed distance explanation

Lesson on the difference between EIGRP computer distance (CD) and feasible distance (FD).

8 votes

sparse multicast through a routed network

The new digital Personal Mobile Radio like Tetra (not cell phones) use multicast to transport vocoded audio (GSM) and database-updates, it would be nice to know exactly how it works.

8 votes


Juniper configuration.

7 votes


Creat a course with VXLAN with NX-OS .

7 votes

LISP Routing Protocol

Please cover the LISP routing protocol the same way you cover OSPF or EIGRP.

7 votes

CCIE RS Workbook

CCIE RS Workbook

7 votes

Regarding IPS Topics !

Badly needed some lesson on IDS/IPS related topics on your portal .Thx

7 votes

ASA reverse route injection

How to configure, what is it used for ?

7 votes

MPLS QoS, Label stacking

Hi René

I would like you something about MPLS QoS and Label Stacking with some examples configuration.

Thanks in advance

7 votes

“show interface ” analysis

Discuss the meaning of the different counters, such as runts, throttles, babbles, etc. Give some examples of when these might occur, and where the best place to begin troubleshooting might be.

7 votes

ASA Multicontext

It would be great if we get asa multicontext and Active/Active Failover configuration.

6 votes

CCDP ARCH lessons

Designing Cisco Network Service Architectures.
You already have CCNP (Route) and CCNP (Switch).
it would be great if we could get a lessons for (CCDP ARCH) to cover a CCDP Certificate.
Thanks in advance.

6 votes

Load balancer

hi please create topics F5 Load balancer how it will be used in networking

6 votes

Leaking between Vrf’s

Leaking between Vrf’s

5 votes


Dense Wavelength Division Multiplexin. I’d suggest it.

5 votes


Upgrading and Downgrading the Software for the Nexus 3500 Series Switch – Using the Install All Command

5 votes

Access and Aggregation Topics

Carrier Ethernet, TDM, (D)WDM, OTN, (G)PON, GMPLS, History (PDH,SDH, Sonet), xDSL, DOCSIS,

5 votes


It would be really great if we can shed some light on L2VPNs and related tech like AToM

5 votes

Group encrypted transport VPN

Any chance you could put out a lesson for this?

5 votes


Hotspot in Cisco routers, possible?

5 votes

IKE and IPSEC internals

Detailed explanation of IKEv1 and V2 Internals. DH groups etc. Debugging VPN negotiation.

5 votes

Control Plane Policing (CoPP)

Hi Rene,
It would be great if you can create a lesson on Control Plan Policing and Protection.

Many thanks in advance

5 votes


Flex VPN is a new framework to configure IPsec VPN with IKE version 2

5 votes

Traffic monitoring on a cisco router

I am often turning up new sites and circuits on the job. The client traffic coming in to my edge router via a LAN interface and trying to connect to an application my company hosts at one of its 32 datacenters. I am familiar with commands on the router such as ip accounting or setting an acl to log but feel like I could use much more detail and maybe some more methods. In the real world it seems this arsenal of traffic monitoring skills (only using the router not other tools) is essential. Maybe you could provide some methods as to how you would interact with the customer when troubleshooting connectivity to hosted application across an MPLS cloud.

5 votes


Create a course describing EVPN-PBB for use in MPLS L2 networks. I think the idea about VPLS would need to be implemented first. As this is new SP technology it would be really cool to learn.

5 votes


Can you please explain how OSPF avoids loop

5 votes

Front door vrf

Using Front Door vrf’s.

5 votes


Some think that the design aspect of networking and certifications aren’t as useful as others, and that it’s meaningless in the industry. I personally feel that it is in EVERY part of networking and is a key factor to an optimal network. Often we learn about different devices and get a brief high-level explanation of their position in the design of the network; however, when it comes to designing the Internet edge, the WAN edge, and other modules of the enterprise network, it is very important to know the details of what goes where and how it should be configured. That gives you the baseline; then depending on organizational needs and constraints, we work from the baseline with various options that can produce the desired results,

We find bits and pieces of information here and there, given whatever technology we’re studying; nowhere except for Cisco documentation, which in itself only gives you bits and pieces, is there any instruction or reference that is complete with detail about each module of network design.

I feel this would be very useful and give the world of network engineers a better picture. Understanding what a device does and how to configure it is great, but understanding the role and the key position of players in the game is important as well.

4 votes


Explain NAT traversal and show some example.

4 votes


Please and thank you! 🙂

4 votes


1) FLEX VPN and its Implementation, QoS
2) Flex VPN vs DMVPN

4 votes

VXLAN BGP EVPN and VXLAN flood and learn

VXLAN and other overlay networks and their configurationa dn deployment

4 votes

Save your last topic

Save the topic where you left off. Next time you login you continue reading the last topic

4 votes

More MPLS Topics !!

It would be great and cordially requesting you to give us some more lessons on MPLS. There are so many lessons missing here 🙁

4 votes

Wireless Technologies.

Please create course for wireless topics.

4 votes


Hi Rene, with your fantastic easy to understand explanation style of writing could please make a comprehensive post on this very confusing and complex topic of BGP VXLAN EVPN’s? Especially the various route types in the MP-BGP EVPN control plane used in VXLANs and how the model compares to the classical ethernet model of learning mac addresses.


4 votes

Segmented routing

It would be great to have some basic information on segmented routing, why it is needed and how it is used.

4 votes

VPN Troubleshooting

Like CCNP troubleshooting, It would be great if we could get troubleshooting course of VPN as well.

4 votes


Application access authentication using LDAP is widely used these day. A tutorial explaining basic LDAP/AD config and going through sample example like LDAP search etc will be really useful

3 votes

IOS XR and Nexus OS upgrade

These upgrades take 4-5 houres what can be really complex and dependent to the network design.

3 votes

include IOS release info for each topic/output

i’ve noticed much of the RS output is from 12.x code, which is not completely accurate in 15.x code. I understand it adds time to your content development cycle but it is very helpful for students learning / validating their knowledge

3 votes


Please create a course on BFD and IP FRR

3 votes

i would like to read about data center

i would like to have articles on – racks for installation of servers , routers, switches + leaf spine network and other data center topologies

3 votes

NX-OS Topics

Please create a course on Nexus

3 votes

High Availabality on Cisco Asa

High Availabality on Cisco Asa

3 votes

Cisco Prime Infrastructure

Would you be able to have something on Cisco Prime Infrastructure?

3 votes

Understanding MVPN

Hi Rene,

Can you plan a session on understanding MVPN

3 votes

Route Dampening

As you mentioned in a reply post a subject in the BGP topic on Route Dampening would be helpful.

3 votes

RFC 1323 – Detail Explanation on TCP window scaling factors & How this works

I have seen a big bang explanation on RFC 1323 , I would be very happy if you can help me understand fully.

3 votes

Add saved Config files foeach tutorial

Can you add the config file in text format,wherever applicable, that was used for a specific tutorial.It saves a lot of time.Thanks

3 votes

MPLS Traffic Engineering

Hi Team, it would be great if we can have a topic for MPLS Traffic Engineering.

3 votes

Add a Q&A after each section

It would be great if you added a knowledge check after each section and at the end of the course. You could also have them indexed all in one place for final revision.

3 votes


Could you please do a new lesson on ACI. There are a lot of us who would like to have a good understanding on ACI. Its difficult to wrap our brains around this new concept.

3 votes

Cisco Cyber Ops (CCNA)

Would be awesome to see a course regarding the Cisco Cyber Ops (CCNA) 210-250 & 210-255 since it is a fresh yet very promising direction to develop in and no normal courses available yet anywhere!

3 votes

L2TP technology and deployment ideas

Dear Rene,
Please create a course on L2TP and scenarios it is deployed.

Sandeep Paul

3 votes

Troubleshooting labs

Troubleshooting labs

3 votes

TCP/IP Theory

This would be a better understanding of layer 4 and up so that a network engineer can better understand lower layer’s effects.

This regularly comes up in interview questions, beyond port numbers, but how clients server relationships work. This might encapsulate many listed topics here.

2 votes


It would be great if you write a lesson about MPLS Multipoint Layer-3 VPN/H-VPLS topics

2 votes

Mock lab

I would like to have Mock lab for each technology I learn, like after completing ospf a mock lab that covers all topics and same for BGP, EIGRP,QOS….. in CCIE level please.

I appreciate your time!

Best Regards,

2 votes


How about adding some topics on Vxlan

2 votes

Network Design

Can you add a new topic to talk about network design?

2 votes

IWAN and OTV Lessons

Will you all ever do any lessons on these topics

2 votes

Require Lab workbooks

It would be great if you add lab workbooks and or some real topology .
The small piece of topology does not help much in real life ,
It’s ok for understanding the concepts


2 votes

CISCO Instant Access product line

Managing and configuring the Cisco IA product, i.e. C-6880-x and 6800 IA environments.

2 votes

In depth Details of AAA commands on Cisco Routers and Switches

for example

aa authentication login default local-case group tacacs+
aaa authorization exec default local group tacacs+ if-authenticated
aaa accounting exec default
action-type start-stop
group tacacs+

aaa accounting commands 15 default
action-type start-stop
group tacacs+

aaa accounting network default
action-type start-stop
group tacacs+

2 votes

Nexus Topic

Hi Rene,

Can we have good lessons on Nexus Topics. It will be really helpful to us. Previously all of your lessons help us lot. It was really a nice explanations.

2 votes


Create a course with NX-OS Topics , along with its usage in the DC or corporate environment .

2 votes

CCNA Datacenter

It would be great to have a course for CCNA: Data Center certification.

2 votes


It would be great if the topics could be explained with IOS-XR as the platform.

2 votes

PIM versus IGMP snooping

Propose a providing a lesson visualizing the difference between IGMP and PIM snooping. The two terms get confused all the time at least I know for me it requires some thought.

2 votes


Hello, Can you please provide an example using RSVP in MPLS.

2 votes

Metro Ethernet Services- E-LINe, ELAN, E-Tree

Metro Ethernet Services- E-LINe, ELAN, E-Tree services in details

2 votes

GRE tunnel with IPSEC behind NAT

GRE tunnels are very useful in order to connect remote sites to one another and implementing IPSEC to protect your data. Most networks these days aren’t sending traffic from one IP straight to another as we all know so I think it would be great to learn about having NAT and using GRE tunnel with IPSEC

2 votes

Segment Routing

MPLS topic can be continued with RSVP-TE and Segment Routing. Would be really helpful

2 votes


Please create a course on wireless

2 votes

WAN Links overview

Hi Rene, I’m still fairly new at networking. Perhaps I’m getting ahead of myself but I think I’m missing some basic information about the various types of WAN links. I’ve configured serial links using WIC-1T’s and HWIC-1DSU-T1’s, what I don’t understand though is how these would be implemented in the real world. For example, what is the purpose of a WIC-1T when its cabling is restricted to such a short distance. Wouldn’t fastethernet be a better solution?

2 votes

Network Engineering interview topics covered

Mostly asked interview questions for network engineers

2 votes

Cisco DATA Center

Hi all,

The technology evolves quickly, you have well start the course on the chassis 4500 but you have not been further.
Could you think of doing the rest of this training and on Data Center too ? Important as technology to give today especially for pre-sales engineers!

Thank you for your necessary.

2 votes

CCNP Security

Are you ever going to offer Security Courses

2 votes

TCP – In depth

For example – how useful is selective acknowledgements.
How crucial is TCP timestamps
How does RTT within TCP affect acknowledgements.

2 votes

NX-OS Topics

This will make me and certainly the rest of your student here happy, if you have this topic as well in your collections. What about utilizing it with VIRL simulation? Are there been continue to upgrade their software to accommodate Data Center? Keep head high Rene on this topic. Thank you for your attention.

2 votes

Please cover CCIE Written Emerging Technologies

Recently I started to work on the CCIE Written. There is a “Emerging Technologies” section that we cannot find good study materials. Please cover them. Thanks.

2 votes

Site to Site VPN, NAT troubleshooting

Hello Team, I would like to know if possible you can conduct some troubleshooting scenarios in which site to site VPN when crypto policy is impacted or missing with the most common debugging logs and troubleshooting commands to proceed with as well as NAT regular complex scenarios debugging troubleshooting

Thank you

2 votes

Filter Streaming Video with Cisco Firepower

Learn to to use application aware filtering on a Cisco ASA with Firepower to detect and block streaming video on a per VLAN basis.

2 votes

Nexus Switches

Create a course with Nexus 2K,5K,7K switches course.

2 votes

Multicast over MPLS

Hello Rene,

You have already covered mulitcast in great detail and i must say it has cleared most of my doubts, could you please cover multicast over MPLS too since i dont find any good explanation over internet. I would really like to see your way of teaching on the said topic.

Thanks for considering my request.

2 votes

Possible Topic – Network Troubleshooting Using Linux

Good evening. At my workplace, we have the opportunity to access end systems for troubleshooting purposes when there the supposed ‘looks like a network issue’ present. As a result, we can login to *nix hosts and trace packets from source to destination. What I am recommending as a subject, is your opinion concerning what you find to be very useful tools for troubleshooting connectivity. For example:
– route -n
– netstat
– tcpdump
– wget
– traceroute/tracepath
– curl
– etc.

2 votes

ASA SNMP configuration

SNMP configuration on ASA with multiple contexts on failover pairs.

2 votes

NX-OS Topics

double sided VPC
how MAC address is learned in VPC

2 votes


Please could you create a course about WAAS?

2 votes

CCNP Collaboration

It’s difficult to find CCNP Collaboration study material right now. As a CCNP Voice (now a retired certification), I am finding it difficult to locate material to make the transition and add video knowledge to my VOIP knowledge.

2 votes


Plz create a nexus course

1 vote

Create a course for cisco asa context and context in FWSM

It would be great if we could some lesson in cisco asa context and context in FWSM.

1 vote


There seems to be a lot of requests for network engineers to know alot nowadays, so as part of our network tool kit, will there be anymore lessons on newer Cisco ASA 5506-X — 5525X Firepower topics and more in the examples in the ASDM area?

1 vote

eBGP with ipv6 examples

Example under eBGP section with ipv6 addresses just like those of ipv4 and explanation of dual stacking along with example.

1 vote

CCNA Security

CCNA Security Please!

1 vote

Overlay transport virtualization. OTV

Can you please provide an example using OTV when you want to extend current VLAN to a DR site?


1 vote

CCNP Security

300-209 SIMOS

1 vote

Cisco Cyber Ops

Create a course for Cisco Cyber Ops
This course should cover the topics need to pass the CCNA Cyber Ops courses namely;
Understanding Cisco Cybersecurity Fundamentals (SECFND) v1.0
Implementing Cisco Cybersecurity Operations (SECOPS) v1.0


1 vote

IPv6 First Hop Security

Hi Rene

Could you please cover the following areas which are on the CCIE R&S Syllabus:

– DHCP Guard
– Binding Table
– Device Tracking
– ND inspection/snooping
– Source guard

1 vote


It would be great if we could get some lesson on QoS Policy Propagation Through the Border Gateway Protocol. It will help to get deeper understanding of QPPB feature.

1 vote

SDN topics since Future is flow-based networking.

Hello Sir, this is a very good website you have developed to study Networking. Best part is the simple structure and simple look of the website which makes us get more concentrated . Can you shift your focus on SDN related topics like on mininet , OVS , Openflow , L3 and L2 forwding switching using opendaylight or some Cisco openflow controllers. Since people may switch to SDN in near future.

1 vote


Considering that the CCIE R&S is great when I will finish would be fantastic having another CCIE done on the same way. Security would be brilliant!

1 vote

Igmp proxy

it would be great if you could get a lesson on igmp proxy (ccie l2 technology)

1 vote

Anyconnect ikev2 Remote Access

Lessons for Anyconnect ikev2 Remote Access

1 vote

UCS- B series, Nexus 9K, Storage

Nexus 9K connect to UCS-B series and Storage

1 vote

ipV6 OSPFv3 LSA Types and how they compare to ipV4 OSPFv2.

I wondered if we could have a topic explaining in more detail the LSA types in ipV6 and how they compare to ipv4. There are two additional types in ipV6 that I’m aware of. More detail would be helpful. Also the name of the types appear different.

1 vote


-Real World examples
Do this if you are not an employee of CISCO

1 vote

Split horizon poison reverse

Could you explain how split horizon poison reverse can avoid routing loops on EIGRP with EXAMPLE.


1 vote

Control-plain/service policy

I need to know how to configure control-plain in our network environment.
Do you have any suggestions on this?

1 vote


Could you make some lessons abut Traffic Engineering?

1 vote

Cisco VS Juniper VPN Technologies

it would be helpful if you could do a lecture on Cisco VPNs and Juniper VPNs.
i) like configure and operate in Hub and Spoke Environment
ii) IPSEC-GRE, DMVPN, FLEX VPN vs similar Juniper VPNs

1 vote

Create a taskbook

I think it is worth to create a taskbook in the form of laboratory work to verify the knowledge in theory and practical skills. Personally, I would like to see a taskbook for the CCNP course.

1 vote

CCIE vs Automation

Is CCIE a good value in current market, where organisations think hiring a CCIE is equal to 3 CCNP Engineers. So, is this good to be inclined towards Automation of Infrastructure (Network & Systems). Please suggest!

Your suggestions will be of great help.

1 vote

Shortest path bridge topics

I start to study IEEE 802.1 Q nowadays. I want know more specific about SBP(Shortest path Bridge Protocol) and its control.

1 vote

Cisco Ironport

Cisco Ironport Proxy

1 vote

Print Page/Lesson

On each page for reach lesson a print option which will optimally and in correct format allow the page(s) to be printed.

1 vote

Two Factor Authentication over SSH with IOS and ASA

I have request for lesson regarding two factor authentication on VTY and console lines with RADIUS(Windows or Cisco) using PKI CAC cards.

1 vote

VoIP cisco

all about cisco ip voip

1 vote


We appreciate If you create some Lesson on VPLS/HVPLS and MPLS TE at your soonest.Thx

1 vote

Host routing

How to define routes in host devices like computers, servers especially when you have 2 different NICs connected to 2 different networks and you want to seggregate traffic from 2 set of networks.
Normally this is case when we use one interface for management and other for use traffic.

1 vote

BGP Videos

I could much, if any BGP video lessons. Would it be possible to add some please?

1 vote


Please create a chapter on the principles of multicasting with explanations on protocols like IGMP and PIM-SM and concepts of pruning etc…Some of the concepts are still abstract. Thxs

1 vote

Network Management Software

It would be great if we could have a course for any Network Management software like Solarwinds or PRTG,
this is required for any Network job.

1 vote

UDP dominance TCP starvation

impossible to find resources that explain the underlying mechanism of this phenomenon !

Here is how it is defined :

TCP starvation/UDP dominance likely occurs if (TCP-based) Mission-Critical Data is assigned to the same service-provider class as (UDP-based) Streaming-Video and the class experiences sustained congestion. Even if WRED is enabled on the service-provider class, the same behavior would be observed because WRED (for the most part) manages congestion only on TCP-based flows.

Granted, it is not always possible to separate TCP-based flows from UDP-based flows, but it is beneficial to be aware of this behavior when making such application-mixing decisions within a single service-provider class.

1 vote

CCNA/CCNP RS labs, Security and CCNA cloud

We got many nice topics from you, though It would be great if you can add 1) CCNA/CCNP R&S practical labs, 2) CCNA Security full topic and 3) CCNA cloud topic. Thank you.

1 vote

Share interview questions

Here i go..
1. I am asked what kind of problem you use to get and solve as a Network Engineer. I am already working on L2/L3 role but I feel iike i am still way behind getting myself on core L3 role. As a L3 engineer, interviewer was not satisfied and said my role as L2 not L3. Can any L3 network engineer (who configures device, handles change configs etc.) help me to reply that effectively for next interview ?

1 vote

Edge Network Setup With Redundancy For SMB

Please create a course with full redundancy at the Distribution/Collapse Core for a small business Setup. with dual connections to the Internet either using routers at the edge or ASA firewalls (also explaining whats the difference or when to use either or). I also would like to know why there has to be a Switch in between the Edge Router and the Firewall or Switch at the Edge. it seems that security auditors like to see a switch in there.

1 vote

Vrf Route Leaking

Route leaking between Global routing and Vrf table.

1 vote

OSPF Summarization and Default-Information Originate in OSPF Network that use more than one ABR


I would like to know how to prevent asymmetric routes when we use summarization in more than one ABR and defaul-information originate.

For example, 3 ABRs connect the backbone area (0) to area 1.

As ABR announces the lowest cost summarization of one of its interfaces, we will end up having asymmetric routes.

1 vote

More videos Required and also seperate video section recommended

Please try to include more video classes. your explanation method is simple and easy to follow. so more videos will be effective.
kindly consider separate video section (including which attached to topics) in this website

1 vote

Nexus VPC

can we have Nexus VPC configuration and troubleshooting?

Thank you

1 vote

IPv6 DHCP relay

Please could you include IPv6 DHCP relay within the IPv6 DHCP section, this is setup slightly differently to IPv4 DHCP relay so would be useful to know.

1 vote

about subtitle

Hello,I’am a Chinese student, my English is bad. I cannot understand your Video content without subtitle…. I beg you to add subtitle(Chinese means 字幕)in your QoS Video.please please please…..

Redistributution between OSPF and EIGRP

It is likely that the CCNP route exam has questions regarding redistribution between OSPF and EIGRP. It would be helpful if you could cover this in more detail.


Widely used n the can add this to your MPLS list

Network Labs – Product Review

As part of my self-study for CCNP certification, I spent some time deciding what lab I should invest in, before finally opting for Cisco VIRL.

As I’m sure others have also spent time doing this, I think it would be useful to have a review of the products available (Online Lab, GNS3, Cisco VIRL, Physical Hardware, etc) detailing the advantages (and disadvantages) of each one, which will help others to decide which product they should invest their money in.

Interview questions

i am struggling to explain below 4 in interviews.
Could you please explain below 4 questions
1. How internet works?
If you type facebook or youtbe .com on browser , how it working ? what and all happening in background?
2. explain OSI layer from scratch level
need to explain how 2 PCS /networks communicating . with all 7 layer examples. interview question,
How 2 networks communicating, Need to give packet level explanation.
4. how ping and trace route work
need detailed explanation


Please create a lesson on EIGRP OTP – it’s on the CCIE blueprint but seems to often be ignored!

Segment Routing and SRv6 including Traffic Engineering

This is the next gen architecture for most mobile 5G deployments globally at SPs.

A topic on VXLAN is what we need

Very less resources are available online and it gets difficult to study VXLAN as such. Can we please get a tutorial on it?

VPC and VPC PO concepts

Vpc deployments practical usage , purpose , usage with mulitcast , these topics would be very handy and helpful

BGP Add-Path

A walk-through of BGP Add-Path would be great, thanks.

Looking for practical topics in SP domain

Would need details on


Please cover 6PE/6VPE, it’s on the CCIE syllabus!

SDN & Nexus overview

Hi Rene,

Please walk us through basics of SDN, overview, scope of Linux/python in networking.Also appreciate if you could touch points on tutorial for Nexuses

ccnp voice

ccnp voice


IWAN solution now take into consideration for many enterprises like banks and SDN our simply explain for every topic will be very useful for such complex solutions

Wireless and DC in depth.

Hello, Rene,
You are awesome. I love your approach towards teaching R&S. Looking forward for more wireless technology and DC soon.

Full marks for R&S 🙂

Thanks and regards
Raghmath Azad

Topic tracking

Hello Team.

Could you modify the web page with a check-box next to each subject, which would assist in keeping track of what subjects have been read.


video not text

Create videos with text instead of text only specially for CCIE R&S

ospf global timer

ospf timers : lsa pacing, lsa throlling arrival time

A Day in the Life – Network Engineer

Sometimes during my preparation for exams, I wonder how often do I really get a chance to apply these commands and knowledge at work when I find a job as a Network Admin? How many times does a company need to change the routing protocol on their network? or how many times they need to create VLANS?
When a network is setup, it should be up a running …so what would be my job then as a network admin when there are no issues to fix in the company? Am I going to forget all these commands if I don’t’ use them much?

I really would love to see a course that will go through everyday work life of a Network Admin/Network Engineer so that I can relate more what I am learning to what I am practically going to use a real world.


CCNA/CCNP RS labs, Security and Cisco cloud

We learnt many good topics from you, Though It would be great if you can add 1) CCNA/CCNA R&S practical labs 2) CCNA Security full course 3) Cisco cloud topics

firewall and router core

I have to learn about firewall I have a test for another two weeks if you have time I need the material and also on the core router

Point-to-Point non Frame relay subneting

Point-to-Point subneting , Using 31-Bit Prefixes on IPv4 Point-to-Point Links
and dynamic protocol BGP

BGP inject-map

BGP best path selection, Backdoor and inject-map.

dhcp relay from server

how to rely dhcp from dhcp server for example i am using windows server 2012 for dhcp server is connected to 3750 switch i am getting ip from dhcp server and switch relay it to host connected to it

-2 votes

IPV6 / 4

Please more on IPv6 and more indepth ipv4 binary and subnetting thanks

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