EXFO FTB-860, Руководство пользователя, Страница: 332 / 409

Common Test Setup, Results, and Functions
320
FTB-860/880
Streams/Services - VLAN Configuration
VLAN #1 (C-VLAN) and VLAN #2 (S-VLAN)
For each layer, set the following parameters.

ID
: Enter the VLAN
ID
. The accepted range is from
0
to
4095
. The
default value is 2 . See VLAN on page 319.

Priority
: Select the VLAN
Priority
. The accepted range is from
0
to
7
.
The default value is 0 (Low priority). See VLAN on page 319.

Type
: Select the VLAN
Type
. Choices for VLAN Ethernet type are
8100
,
88A8 , 9100 , 9200 , and 9300 . The default value is 8100 for VLAN 1 and
88A8
for
VLAN 2
.

Drop Eligible allows the Service VLAN tag (S-TAG) to convey eight
distinct priorities, each with a drop eligible indication. When enabled
(DEI = 1), the drop eligible parameter is encoded in the DEI of
transmitted frames. The drop eligible parameter should be enabled for
a received frame if the DEI is set in the S-TAG or if the Priority Code
Point Decoding Table indicates drop eligible enabled for the received
PCP value. When disabled (DEI=0), the DEI is ignored on receipt. Drop
Eligible is not available when VLAN type is
8100
. This setting is
Disabled by default.