[j-nsp] VLAN in SNMP Interface Table

[Chris Kawchuk]

Using the basic SNMP IfMib for per-vlan stats on a switching interface:

EX - No. Just per-port stats. 
QFX - You can declare a sub-unit but per-vlan, but the unit's counters dont increase
MX - Yes, per sub-unit stats, but you need to declare the units as encapsulation vlan-bridge and manually define each vlan on a port.

If you're talking about IRB.x/VLAN.x, then yes EX, QFX can show L3 statistics in/out of the VLAN, but that's just the L3 interface.

Not familiar if any of the vendor-specific Juniper MIBs give you a better view of per-vlan on an EX or QFX; never looked that hard.

- CK.


> On 20 Nov 2019, at 8:13 am, juniper-nsp at ics-il.net wrote:
> 
> I understand that some Juniper 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. 
> 
> 
> 
> 
> ----- 
> Mike Hammett 
> Intelligent Computing Solutions 
> 
> Midwest Internet Exchange 
> 
> The Brothers WISP 
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