Marking Egress Packets With A Dei Value; Dynamic Mode Cos For Vlan Stacking - Dell Z9000 Configuration Manual

Marking Egress Packets with a DEI Value

On egress, you can set the DEI value according to a different mapping than ingress.
For ingress information, refer to
To mark egress packets, use the following command.
• Set the DEI value on egress according to the color currently assigned to the packet.
INTERFACE mode
dei mark {green | yellow} {0 | 1}
Example of Viewing DEI-Marking Configuration
To display the DEI-marking configuration, use the show interface dei-mark [interface slot/
port | linecard number port-set number] in EXEC Privilege mode.
Dell#show interface dei-mark
Default CFI/DEI Marking: 0
Interface Drop precedence CFI/DEI
--------------------------------
Gi 0/1 Green
Gi 0/1 Yellow
Gi 8/9 Yellow
Gi 8/40 Yellow

Dynamic Mode CoS for VLAN Stacking

One of the ways to ensure quality of service for customer VLAN-tagged frames is to use the 802.1p
priority bits in the tag to indicate the level of QoS desired.
When an S-Tag is added to incoming customer frames, the 802.1p bits on the S-Tag may be configured
statically for each customer or derived from the C-Tag using Dynamic Mode CoS. Dynamic Mode CoS
maps the C-Tag 802.1p value to a S-Tag 802.1p value.
Figure 101. Statically and Dynamically Assigned dot1p for VLAN Stacking
When configuring Dynamic Mode CoS, you have two options:
Service Provider Bridging
Honoring the Incoming DEI
0
1
0
0
Value.
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