Tracking traffic usage at router or switch port?

[mark.tinka at seacom.mu (Mark Tinka)]

On 1/Jun/16 19:58, Jason Lee wrote:

> NANOG Community,
>
> Typically where would you expect a service provider to monitor bandwidth
> usage on your circuits? On the physical switch port interface or on the
> vlan interface at the router? In some of the field testing I've been doing
> there can be a difference in the bandwidth usage on the vlan interface at
> the router vs the physical switch port. Is there any particular reason for
> using one vs the other? Is there an industry best practice for this?

We track both.

Mark.