In reality - you can't see the traffic separated out on an uplink port because 
switches themselves do not have an SNMP-pollable variable (that I know of) that 
would let you see traffic "per logical VLAN" for a physical interface.

Little background: Switches show their "physical" interfaces when dealing with 
switched ports (i.e. ones that show up in the ifTable, and hence a pollable); 
and show a logical interface for layer-3 interfaces (again, in the IfTable, and 
pollable). Remember that the L3 interfaces exist only logically i.e. a vlan.x 
interface, or irb.x interface, which is the "virtual IP interface" in that 
bridging group which can be used to route packets in and out of the VLAN. 

Unfortunately, this does not extend into the layer-2 world. (And doing so may 
cause lots of grief, since you can change what VLANs can go out of a trunk port 
on-the-fly; hence new interfaces would show up all the time representing the 
new VLAN ID that was allowed to pass through the 8021.q port)

So sorry - the answer is No; since the switch itself isn't differentiating the 
traffic internally. (and hence, cant be polled by intermapper).

- CK.


On 2010-10-16, at 5:57 AM, ToomsCJ7 wrote:

> 
> Hello,
> 
> Is there anyway to be able to see all VLAN's on an uplink?  I noticed in the 
> label format there is a dynamic tag for VLAN, but it only shows one.  We have 
> several uplinks per VLAN throughout our network.

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