Manual-ESML8P-PC2_Series-Rev1211
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3-bit 802.1p priority classification field that is embedded in the 4-byte 802.1q VLAN tag field.
Before configuring this field, users have to select the
Use a strict priority scheme
radio button
and set the
Priority Type
on
COS only
or
COS first
.
•
Priority: The 3-bit 802.1p priority values range from 0 to 7. Click the pull-down menu to
specify the corresponding queue for the identified COS value (priority) to which the
identified frame will be sent.
•
Click the ‘Apply’ button for the configuration to take effect.
►
TOS Configuration
Configure this item to allocate the identified packet to different queues according to the packet’s
6-bit DSCP (Differentiated Service Code Point) value inside the 1-byte ToS (Type of Service) field.
The 6-bit DSCP value defines up to 64 priority values. Therefore, you can assign one of the four
queues to each priority respectively.
•
Priority: Click the pull-down menu to specify the corresponding queue for the identified
TOS (DSCP) value to which the identified packet will be sent.
•
Click the ‘Apply’ button for the configuration to take effect.
5.2.20
X-Ring+
X-Ring provides a faster redundant recovery than the Spanning Tree topology. The action is
similar to STP or RSTP, but the algorithms between them are not the same. To configure an X-
Ring group, the X-Ring function has to be enabled on each switch whose two ports connecting to
the ring group in which should be assigned as the member ports.
The two switches forming the last segment of a multi-device X-Ring group will automatically be
designated as master switches between which the connection is called the backup path. Known
as backup ports, the two ports of the backup path will be blocked. Also, the user can identify
whether the switch is the ring master device by checking the LED indicator on the panel of the
switch.
Other switches in the X-Ring group are naturally the working (forwarding) switches
and both their
two member ports are working (forwarding) ports. If the failure of network connection occurs,
the backup ports of master switches (ring master devices) will automatically become working
(forwarding) ports to recover from the failure.
•
X-Ring+ Operation Mode:
Click the pull-down menu to configure the operation mode for
X-Ring+ or disable the X-Ring+ function.
Содержание ESML8P-PC2
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