Re: [c-nsp] BGP-EVPN vs Traditional Nexus 7k/5k Design

[Gustav Ulander]

Hello.
Lots of if and buts in the BGP E-VPN and VXLAN solution including some not so 
nice bugs. 
Documentation isn't really clear on some of the pitfalls either. I would 
suggest a heavy testing period more so than usual perhaps. 
Since you are running L3 on all those 1u boxes make sure that you understand 
where you land in the scalability documents. Some knobs bring scalability way 
down especially if you are running it with the older 9300 generation switches 
since they are Broadcom based. 
Newer generation 9200 and 9300 is better but there is still a couple of 
pitfalls to step into. 

//gustav

-Ursprungligt meddelande-
Från: cisco-nsp [mailto:cisco-nsp-boun...@puck.nether.net] För Yham
Skickat: den 2 december 2017 17:34
Till: cisco-nsp@puck.nether.net NSP 
Ämne: [c-nsp] BGP-EVPN vs Traditional Nexus 7k/5k Design

Hi Gentlemen,

We are planning to upgrade our data centers which were built on cisco'
traditional design at that time i.e nexus7Ks as core and nexus5Ks and 2Ks as 
distribution and access layer (TOR). In this design, 7Ks run layer-3 and extend 
layer2 via VPC down to 5Ks. We have the multi-tenant environment (VDCs and 
VRFs) and host customer's critical services

For the upgrade, we are exploring BGP-EVPN with VXLAN option? can someone 
please give me the pros and cons when compare with traditional 7ks/5ks vpc 
design? I read about cisco's bgp-evpn design but not sure yet what is the real 
value. are there real benefits or its just marketing fluff to sell nexus 9Ks 
and part of SDN buzz.

cisco also offer ACI and we may want to try it in green field deployment but 
don't think it mature enough and ready for us to migrate the critical 
customer's service over it now.

Regards
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Re: [c-nsp] multiple GRE on the same gear

[Arie Vayner]

Nope. This is a hardware specific problem on the older 6500's

On Fri, Dec 1, 2017, 08:17 james list  wrote:

> Dear experts,
> the bug CSCdy72539 states that on Cisco 6500 with SUP720 if are created
> multiple GRE interfaces using the same source address traffic is switched
> in CPU instead of hardware, it seems the issue is solved with SUP2T.
> The question: can ASR1001X suffer of the same issue ?
> I’m not able to find any info on the web.
>
> Can anyone help ?
>
> Cheers
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[c-nsp] BGP-EVPN vs Traditional Nexus 7k/5k Design

[Yham]

Hi Gentlemen,

We are planning to upgrade our data centers which were built on cisco'
traditional design at that time i.e nexus7Ks as core and nexus5Ks and 2Ks
as distribution and access layer (TOR). In this design, 7Ks run layer-3 and
extend layer2 via VPC down to 5Ks. We have the multi-tenant environment
(VDCs and VRFs) and host customer's critical services

For the upgrade, we are exploring BGP-EVPN with VXLAN option? can someone
please give me the pros and cons when compare with traditional 7ks/5ks vpc
design? I read about cisco's bgp-evpn design but not sure yet what is the
real value. are there real benefits or its just marketing fluff to sell
nexus 9Ks and part of SDN buzz.

cisco also offer ACI and we may want to try it in green field deployment
but don't think it mature enough and ready for us to migrate the critical
customer's service over it now.

Regards
___
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