Configuring Dcb Maps And Its Attributes - Dell S4810 Reference Manual

Local DCBX Status
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Peer DCBX Status:
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Configuring DCB Maps and its Attributes

This topic contains the following sections that describe how to configure a DCB map, apply the
configured DCB map to a port, configure PFC without a DCB map, and configure lossless queues. This
functionality is supported on the S4810 platform.
DCB Map: Configuration Procedure
A DCB map consists of PFC and ETS parameters. By default, PFC is not enabled on any 802.1p priority
and ETS allocates equal bandwidth to each priority. To configure user-defined PFC and ETS settings, you
must create a DCB map.
Step Task
Enter global configuration mode to create a
1
DCB map or edit PFC and ETS settings.
Configure the PFC setting (on or off) and the
2
ETS bandwidth percentage allocated to traffic
in each priority group, or whether the priority
group traffic should be handled with strict
priority scheduling. You can enable PFC on a
maximum of two priority queues on an
interface. Enabling PFC for dot1p priorities
makes the corresponding port queue lossless.
The sum of all allocated bandwidth
percentages in all groups in the DCB map
must be 100%. Strict-priority traffic is serviced
first. Afterwards, bandwidth allocated to other
priority groups is made available and allocated
according to the specified percentages. If a
priority group does not use its allocated
Data Center Bridging (DCB)
Local DCBX TLVs Transmitted: ErPfi
DCBX Operational Version is 0
DCBX Max Version Supported is 0
Sequence Number: 2
Acknowledgment Number: 2
Protocol State: In-Sync
DCBX Operational Version is 0
DCBX Max Version Supported is 255
Sequence Number: 2
Acknowledgment Number: 2
Total DCBX Frames transmitted 27
Total DCBX Frames received 6
Total DCBX Frame errors 0
Total DCBX Frames unrecognized 0
Command
dcb-map name
priority-group
group_num {bandwidth
percentage | strict-
priority} pfc {on | off}
Command Mode
CONFIGURATION
DCB MAP
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