Arista Switch Suggestion

Fri Dec 6 23:05:07 UTC 2019

Am I reading correctly in that there has to be a layer 3 configuration on the VLAN for that to function? 

----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

----- Original Message -----

From: "Siyuan Miao" <aveline at misaka.io> 
To: "Mike Hammett" <nanog at ics-il.net> 
Cc: "Steve Meuse" <smeuse at mara.org>, "nanog" <nanog at nanog.org> 
Sent: Friday, December 6, 2019 4:49:45 PM 
Subject: Re: Arista Switch Suggestion 

I can confirm 7050X series do support this feature.We're using 7050SX and 7050S, 7050S isn't supported 

https://www.arista.com/en/um-eos/eos-section-11-6-ethernet-configuration-commands#ww1310058 

On Sat, Dec 7, 2019 at 6:42 AM Mike Hammett < nanog at ics-il.net > wrote: 

I have not found x-flow to have the accuracy I would like. Either there's a loss of information due to sampling and such low-usage interfaces (or VLANs in this case) are lost in the noise or there's information overload due to no sampling at all. 

I have seen very few platforms expose counter information about VLANs in the same way they do regular interfaces. Some Juniper platforms, Mikrotik, and I hear some Aristas as well. 

----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

From: "Steve Meuse" < smeuse at mara.org > 
To: "Mike Hammett" < nanog at ics-il.net > 
Cc: "nanog" < nanog at nanog.org > 
Sent: Friday, December 6, 2019 4:20:08 PM 
Subject: Re: Arista Switch Suggestion 

You should be able to do that with Sflow, which they all/most support. 

Also, this seems like standard Ifmib stuff, any snmp poller should be able to handle that, from a metrics perspective . 

-Steve 

On Fri, Dec 6, 2019 at 4:31 PM Mike Hammett < nanog at ics-il.net > wrote: 

<blockquote>

I asked over at https://puck.nether.net/mailman/listinfo/arista-nsp a couple weeks ago, but didn't get an answer, so I have moved to a larger group. 

I understand that some Arista switches will expose each VLAN in SNMP so I can monitor traffic on a VLAN independently of over VLANs on that same physical interface. Some of them don't. 

Which ones do? 

I prefer a solid used switch. 

10G ports are fine. 

----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

Midwest-IX 
http://www.midwest-ix.com 

</blockquote>

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