Brocade Network OS Administrator’s Guide v4.1.1 User Manual
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‐
Untagged control traffic is not subject to transport VF classification rules. It is handled
according to the respective protocol configuration (that is, trapped, dropped, forwarded).
‐
Tagged control traffic received on a transport VF is forwarded on the transport VF domain
as is data traffic. (PVST cannot be established on a transport VF and is always in the
shutdown state.)
‐
Tagged control traffic received on a service VF is governed by its respective protocol
configuration.
• Transport VF classification can be based on any of the following:
‐
A C-TAG range
‐
The native VLAN
‐
Default traffic (any nonmatching data traffic)
• A vXLAN VNI cannot be mapped to a transport VF.
• Layer 2/Layer 3 configurations are not supported on a transport VF. This means that AMPP/xSTP/
PVLAN/RSPAN/ACL/VE configurations are not allowed on a transparent VLAN.
Additional transport VF classification issues
The following table summarizes the classification rules that are applicable to some special VLANs and
native VLANs.
C-TAG
VF
classification
Transport VF C-
TAG range
Transport VF
default VLAN
Notes
Default VLAN 1
No
No
Yes
VLAN 1 cannot be used as a VF
classification C-TAG in regular
trunk mode. However, it can be
used as a VF classification C-TAG
in no-default-native-VLAN trunk
mode.
Native VLAN
Yes
Yes
Yes
The transport VF default VLAN
excludes matching any existing
VLAN classification on the port.
Because a native VLAN exists as
the implicit classification on a trunk
port, it is not classified into the
default transport VF.
FCoE VLAN
(1002)
Yes
Yes
Yes
An FCoE VLAN defined in the
FCoE fabric-map configuration can
be used as a classification C-TAG if
the port is not configured as an
FCoE port.
Reserved VLAN
Yes
Yes
Yes
Each platform has a certain VLAN
range that is reserved for internal
operations. A VLAN in this range
can be used as a service or
transport C-TAG if the VLAN ID is
not internally configured on an edge
port. (VLAN 4095 is an internal
VLAN and cannot be used.)
Configuring Virtual Fabrics
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Network OS Administrator’s Guide
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