Re: Migration to Nexus 5k best practices...

Yes, sometimes this emails are just not enough to really qualify what really needs to happen.. Great points, Brad no longer works for Cisco so I'm not sure how upto date his material is anymore. He left about the time his blogs stopped on the nexus stuff. The problem is there are so many blogs out there thy talk about individual sections that you could read for ever and never get anywhere. Reading the official Cisco docs can help a lot. If anyone hs a bridge number to talk on, or Skype they would like to jump on let's do it as Emil's don't work we'll in these cases.

Regards,
 Joe Sanchez

( please excuse the brevity of this email as it was sent via a mobile device. Please excuse misspelled words or sentence structure.)

On Oct 10, 2012, at 7:59 AM, Ryan West <rwest_at_zyedge.com> wrote:

> On Wed, Oct 10, 2012 at 00:09:13, 6PE_2.0 wrote:
>> Subject: Migration to Nexus 5k best practices...
>>
>> Hi Mates,
>>
>> Over the next few weeks, i plan on migrating my dual stack 3750 in my
>> data center to NX 5K which connects UCS, NetApp and a bunch of other
>> physical server
>>
>> My primary research/resource so far has been mostly Cisco documentation.
>>
>> Out of curiosity, for those who have done similar migration, any tips
>> on recommended best practices? The Cisco press books i have seen so
>> far is been less technical, rather sales. Also blog links welcomed.
>
> Assuming that this is a smaller install and that you'll be using the layer 3 card on the 5k's, you'll want to check out a few things about routing and HSRP with VPC's. If you think you'll run an IGP at some point, you should plan for extra links between your 5k's over those used as peer-links. The basic rule of thumb about VPC is that a packet received on a VPC member port needs to be forwarded back out a member port, it cannot use the VPC peer-link as its next hop to get to a member port unless a link in that particular VPC is down. That plays directly into single attached routing devices or devices that have formed an etherchannel to the VPC and are running a routing protocol.
>
> http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/
>
> http://www.netcraftsmen.net/component/content/article/69-data-center/1215.html
>
> Also, under the main VPC config, you should setup peer-gateway for your NetApp management as it will consult the MAC address of the packet received vs. its ARP table for replies. Peer-gateway allows the packet received with the other HSRP peer MAC to traverse. If you don't feel comfortable turning it on all VPC VLAN's, you can exclude ranges.
>
> -ryan
>
>
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Received on Wed Oct 10 2012 - 08:41:32 ART