Extreme Networks ExtremeWare 7.3.0, Command Reference Manual

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1642 ExtremeWare Software 7.3.0 Command Reference Guide
PoS Commands
be set to the value of the priority parameter. Omission of the
priority
keyword indicates that the
802.1p priority of the frame is to be preserved. The
vlanid
parameters are integers in the range [1-4095].
The
priority
parameter is an integer in the range [0-7].
This command is only applicable when BCP is enabled on the port. Furthermore, tag push operations
are applicable to egress frames only when the port is configured to transmit tagged frames for the
associated VLAN. The tag-nesting operations are only applicable to
ingress
frames that contain a
VLAN tag. The tag-nesting operations are applied after classification to a QoS profile. The default PPP
MRU is sufficient for a single level of tag nesting (where the frame contains two VLAN tags) between
two Extreme switches; jumbo frame support must be enabled if higher levels of VLAN tag nesting are
needed.
The DiffServ/RED functions are not performed by PoS ports when frames contain nested tags (in other
words, more than one tag).
Example
The following command adds VLAN
140
to the frame for port 1 of the module installed in slot 8 for
input frames from the PPP link:
configure dot1q tagnesting push 140 port 8:1 ingress
History
This command was first available in an ExtremeWare IP Technology Services Release based on
v6.1.5b20.
Platform Availability
This command is available on the BlackDiamond switch only.