Global vlan-id classifier, Global vlan-id classifier -56 – HP 5400ZL User Manual
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Quality of Service: Managing Bandwidth More Effectively
Globally-Configured QoS
Global VLAN-ID Classifier
Global QoS Classifier Precedence: 5
The global VLAN-ID (VID) classifier allows you to use up to 4094 VLAN IDs to
match packets. When a particular VLAN-ID classifier has the highest prece
dence in the switch, traffic received in the VLAN is marked with the configured
priority level. You can configure different global VLAN-ID classifiers to mark
packets with different priority levels.
Options for Assigning Priority.
The global QoS packet-marking options
for packets that carry a specified VLAN-ID include:
■
802.1p priority
■
DSCP policy (Assigning a new DSCP and an associated 802.1p priority;
inbound packets must be IPv4.)
For information on QoS operation when other global QoS classifiers match
the same traffic, see to “Globally-Configured Packet Classification” on page
6-12.
C o n f i g u r a t i o n
A global VLAN-ID classifier marks priority levels only in packets received on
N o t e s
static VLANs. Packets received in a dynamic VLAN created by GVRP operation
are not marked by a global VLAN-ID classifier.
The VLAN ID used as a global QoS classifier must currently exist on the switch.
If you remove a VLAN from the switch, all global QoS configurations that use
the VLAN ID for packet marking are also removed.
Assigning a Priority for a Global VLAN-ID Classifier
This global QoS packet-marking option assigns a priority to all outbound
packets having the specified VLAN-ID (VID). You can configure this option by
either specifying the VLAN-ID ahead of the
qos command or moving to the
VLAN context for the VLAN you want to configure for priority.
Syntax: vlan < vid > qos priority < 0 - 7 >
Configures an 802.1p priority for outbound packets belong
ing to the specified VLAN. This priority determines the
packet’s queue in the outbound port to which it is sent. If the
packet leaves the switch on a tagged port, it carries the 802.1p
priority with it to the next downstream device. You can
configure one QoS classifier for each VLAN-ID. (Default:
No-
override)
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