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VLAN in SNMP Interface Table
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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Re: VLAN in SNMP Interface Table [ In reply to ]
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@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
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp

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