I would monitor it wherever you would do traffic shaping/policing. If that happens on the CPE monitor it there. If the CPE is just all Layer2 back to a router or whatever and the router is doing rate limiting monitor it there. For circuits that run at wirespeed with no limits (10/100/1000/10k/etc) the same logic applies, just monitor the bandwidth where you would normally do the policing.
*Spencer Ryan* | Senior Systems Administrator | sr...@arbor.net *Arbor Networks* +1.734.794.5033 (d) | +1.734.846.2053 (m) www.arbornetworks.com On Wed, Jun 1, 2016 at 1:58 PM, Jason Lee <jason.m....@gmail.com> 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? > > Thanks, > > Jason >
