Administrator Guide
Field Description
Peer DCBx Status: DCBx Operational Version DCBx version advertised in Control TLVs received from peer
device.
Peer DCBx Status: DCBx Max Version Supported Highest DCBx version supported in Control TLVs received from
peer device.
Peer DCBx Status: Sequence Number Sequence number transmitted in Control TLVs received from
peer device.
Peer DCBx Status: Acknowledgment Number Acknowledgement number transmitted in Control TLVs received
from peer device.
Total DCBx Frames transmitted Number of DCBx frames sent from local port.
Total DCBx Frames received Number of DCBx frames received from remote peer port.
Total DCBx Frame errors Number of DCBx frames with errors received.
Total DCBx Frames unrecognized Number of unrecognizable DCBx frames received.
PFC TLV Statistics: Input PFC TLV pkts Number of PFC TLVs received.
PFC TLV Statistics: Output PFC TLV pkts Number of PFC TLVs transmitted.
PFC TLV Statistics: Error PFC pkts Number of PFC error packets received.
PFC TLV Statistics: PFC Pause Tx pkts Number of PFC pause frames transmitted.
PFC TLV Statistics: PFC Pause Rx pkts Number of PFC pause frames received.
PG TLV Statistics: Input PG TLV Pkts Number of PG TLVs received.
PG TLV Statistics: Output PG TLV Pkts Number of PG TLVs transmitted.
PG TLV Statistics: Error PG TLV Pkts Number of PG error packets received.
Application Priority TLV Statistics: Input Appln Priority TLV pkts Number of Application TLVs received.
Application Priority TLV Statistics: Output Appln Priority TLV
pkts
Number of Application TLVs transmitted.
Application Priority TLV Statistics: Error Appln Priority TLV Pkts Number of Application TLV error packets received.
Hierarchical Scheduling in ETS Output Policies
ETS supports up to three levels of hierarchical scheduling.
For example, you can apply ETS output policies with the following congurations:
Priority group 1
Assigns trac to one priority queue with 20% of the link bandwidth and strict-priority scheduling.
Priority group 2 Assigns trac to one priority queue with 30% of the link bandwidth.
Priority group 3 Assigns trac to two priority queues with 50% of the link bandwidth and strict-priority scheduling.
In this example, the congured ETS bandwidth allocation and scheduler behavior is as follows:
Unused bandwidth
usage:
Normally, if there is no trac or unused bandwidth for a priority group, the bandwidth allocated to the group
is distributed to the other priority groups according to the bandwidth percentage allocated to each group.
However, when three priority groups with dierent bandwidth allocations are used on an interface:
• If priority group 3 has free bandwidth, it is distributed as follows: 20% of the free bandwidth to priority
group 1 and 30% of the free bandwidth to priority group 2.
Data Center Bridging (DCB)
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