Re: Arista Switch Suggestion

[Mike Hammett <nanog () ics-il net>]

*grumble* 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

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

From: "Siyuan Miao" <aveline () misaka io> 
To: "Mike Hammett" <nanog () ics-il net> 
Cc: "Steve Meuse" <smeuse () mara org>, "nanog" <nanog () nanog org> 
Sent: Friday, December 6, 2019 6:00:13 PM 
Subject: Re: Arista Switch Suggestion 


Yes that's required. 


On Sat, Dec 7, 2019 at 7:05 AM Mike Hammett < nanog () ics-il net > wrote: 




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 



From: "Siyuan Miao" < aveline () misaka io > 
To: "Mike Hammett" < nanog () ics-il net > 
Cc: "Steve Meuse" < smeuse () mara org >, "nanog" < nanog () 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 () ics-il net > wrote: 

<blockquote>


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 () mara org > 
To: "Mike Hammett" < nanog () ics-il net > 
Cc: "nanog" < nanog () 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 () 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 




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