PLANET EPL-1000 - Manual (Page 46)

„ Upstream CoS
The upstream CoS is the CoS value that will be inserted into upstream frames, forwarded
on the VLAN. It is VERY important to notice that a unique upstream CoS and VID
combination defines a unique VLAN. For every link provisioned in a unique VLAN, EVERY
attribute in the VLAN record other than the link label, MUST be identical. Identical, means
that for link A and link B provisioned in VLAN C a bitwise comparison of the two records
used for provisioning would show equality. If this is not the case the TK3721 will not
function correctly, and NVS erase followed by system reset may be required to restore
proper functionality.
„ Max/Min Range
Allows the user to provision an INCLUSIVE range of priority values used for downstream
classification. Packets with matching VID and a CoS/ToS value in the range specified will
be classified onto the VLAN. It is VERY important that for every VID, there exists VLANs
{V0, V1, …,Vn} such that together they specify a complete range [0 7] with no holes. Also
note that for any two unique VLANs with VID=A, it is illegal that the two VLANs Max/Min
contain ANY overlapping regions (e.g. [0, 4] and [4, 7] would be illegal).
- 46 -