What if the provider has multiple PETR connections to service providers?

What about WLC traffic destin for something outside the SDF? What is the flow then?

How about the traffic destine for outside the SDA-Fabric through the border node? How is that cached?

PPDIO - boy you are bringing me back. LOL , PPDIOO stands for Prepare, Plan, Design, Implement, Operate, and Optimize. PPDIOO is a Cisco methodology that defines the continuous life-cycle of services required for a network.

TRILL (Transparent Interconnection of Lots of Links) is a networking protocol for optimizing bandwidth and resilience in Ethernet networks, implemented by devices called TRILL switches.

VSS at the distribution with it being STP root with port-channels to the access layer at least helps STP issues.

Moore Edward Hernandez George Harris William

Great content kish. Thanks a lot .

12:38 DMVPN was the ideal practical use case for tunnels prior to SDN I thought

22:55 that does look like trying to play "gotcha" in interview questions. In the older days technical flex was super competitive, not so much these days. Thanks for this training.

Hi everyone, Is this correct? Internal Border Node = MS/MR / PITR External Border Node = PETR.

In the Campus design, how connections between the Distribution switches in each building and the Core switches (are they switches or routers?) work? By routed interfaces? L3 Etherchannels?

33:00 RFC791 does not support your statement of always being 0, in your drawing that is bit 5, in RFC791 page 12 bit 5 is Bits 5: 0 = Normal Reliability, 1 = High Reliability. isn't it? No requirement for it to be 0 is mentioned. It is bits 6 & 7 that are set to 0 because they were reserved for future use.

1:02:15 Do you suppose the private cloud inside a hybrid cloud MUST or SHOULD(in RFC terms) confirm to the 5 NIST while inside a hybrid?

52:00 wouldn't chargeback be cool if we could charge it per packet and bytes per department. But yes, bank in the day IT in my region bank was its own cost center and only spent money, it didn't make any--but what is the value of enabling every single department in an org?

1:31:00 back in the mid90s I worked at a regional bank and we were running RIP v1 & Novell Netware, funny now.. but it worked fine for their needs.

14:38 Yes but the real panic attack was the Internet connection was 128k ISDN so it was slow for everyone.

32:48 too bad no RIP v2 or ODR eh? 47:59 Explaining inverseARP was difficult the first time I had to explain it.

56:48 realistically the Internet could possibly live off of the other border node in this scenario I'd think.

9:00 this is exactly the type of network I saw in so many places back in the day, especially a regional bank...separate physical servers for NT 4.0 AD, DNS, WINS, and God knows how many Netware servers they had. Sounds crazy today, but it worked.

45:45 CBWFQ/DSCP/NBAR is granular enough to configure such things without much trouble 48:30 Fram Relay pvcs should be much cheaper than MPLS circuits I'd think.

13:58 it used to be static routes that were banned on the CCIE Lab.

2:41 The line I remember was if you cant fix the problem; fix the blame.

i'm enjoying megaman's helmet XD

This is great material, thank you! Studying for DCID/ DCCOR and there are very few videos out there designed for DCID/ DCCOR. Any ideas of a free platform for more vids on those exams? I know CBT Nuggets is top of the top, but was wondering if there is anything freely accessible you may know about? Cheers :)

Where does firewalls fit into sdn or sd access fabrics?

Hi Kish. Thanks for the videos. How can we find a Lab where we can see VXLAN and LISP actually running. I am kind of Visual. I understand things when I see them. Thank you so much

I guess he never came back :(

This is very helpful in understanding SDA.. need similar video series for Cisco ACI.

awesome material!.. thank you!

25:33 when you talk about collapsing, what do you mean by that when you say core/distribution collapse to one what does that mean just a distribution switch only or what? I mean core is basically routing, which layer 3 switch aka distribution can also do? Looking forward to hear from you, thanks

@19:20 😄😄😄

LISP reduces routing table size in ISP field by searching R10 ( in our example) not subnet A attached to it. but to reach R10 loopback or /30 prefixes all in-path routers must know the path thus routes. how LISP reduce routing table size?

great session !

With SPBm (also was available in 2020 and many years before 2020), you can have both and have redundancy and no loops. Cisco's concept forces L2 on top of L3 (greater overhead). SPBm integrates shortest path (think OSPF) with L2 invisibly. Then you can use that L2 anywhere you want it to show in the network. If you want VRFs, you can have that too (multi-tenant L2 and L3 are available for millions of tenants). Best part of it is that there are vendors now that have their own implementations and they interoperate (think open standard fabric) and not locked into one (Cisco).

Great well done

Absolutely loved the video and I was glued to it from halfway across the world! There was one point which contrasted technical expertise vs communication skills. Realistically, the world is such that those who are more adept at communicating who can speak the language of business usually progress at the expense of those who are technically expert. But speaking from a risk management perspective, I would 100% rather have the network guy in my company be the best technical expert, whose word is law, rather than someone who goes with the flow. And in a highly regulated environment like financial services, regulators have the back of the technical expert. So if there was a meeting and a technical expert says , “no you need to do this in A and B and C”, and he has the necessary street credibility, very few committee members will dare overrule him. And he will also have the backing of risk, who has a powerful voice.

Mr Kish - Applying theory to real world scenarios like a boss!

Quick question ... how effective is SDA with using ISE?

Thanks Kish

What the router would do if there are many PxTRs and it gets a negative reply from MS/MR? Which PxTR he would choose to send a packet? It could be a lot of them, and they could lead to different AS, which leads to suboptimal routing. What's the trick?

Hi, What kind of drawing tool is this?

So we need tunnel to every ETR/ITR ? If MS don't have route then the router will sent packet to PETR, but how router get to know about appropriate PXTR??

Thats really amazing

Poor video

I don’t understand why we will need FHRP on L3 access switch. Everyone wants to explain? Thanks

If user data, updates, and config are all passed from wlc to AP using capwap… why is the AP even connected to a switch port in the first place? What data is being passed along? Is there very specific types of managment data, is it for very specific scenarios? Would love to hear anyone’s knowledge on this

Hi, Kish, really good videos. I was wondering if you could help me with this: In Ciscopress' ENCOR guide, LISP routing architecture is explained as follows: "In traditional routing architectures, an endpoint IP address represents the endpoint’s identity and location. If the location of the endpoint changes, its IP address also changes. LISP separates IP addresses into endpoint identifiers (EIDs) and routing locators (RLOCs). This way, endpoints can roam from site to site, and the only thing that changes is their RLOC; the EID remains the same." I don't understand this. Assuming that in this context EID = Endpoint IP Address, how can the EID not change if the client roams from one RLOC to another? How can I client keep its IP if it moves from one subnet to another?

It's been 5 years. Thank you for the Memories.♥️

0:21 Quick Mans vs. Metal Mans