Dcbx And Ets Configuration Parameters - Qlogic SANsurfer FC/CNA HBA CLI User Manual

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DCBX Enable
Willing
Port Pause Type
SAN Priority COS
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ETS
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Priority Txt Mode
SAN Bandwidth Percent
SAN Unused Bw To LAN
LAN Unused Bw To SAN
Table 3-13
selection (ETS) settings shown in the preceding example.
Table 3-13. DCBX and ETS Configuration Parameters
Parameter
DCBX Enable
Willing
Port Pause Type
SN0054614-00 K
: Enabled
: Enabled
: Per Priority Pause
: 3
: Bandwidth
: 50
: Enabled
: Disabled
provides descriptions of the DCBX and enhanced transmission
When DCBX is enabled, the switch connected to the host over this adapter
port negotiates these port parameter settings. You cannot disable DCBX.
This read-only parameter is from the switch. You cannot disable Willing.
Specifies the default port pause type as either Standard or Per Prior-
ity Pause. Pause is a frame that controls the flow between transmitter
and receiver, when the transmitter sends data at a higher rate than the
receiver. In such situations, the receiver sends a PAUSE frame to the
transmitter and the transmitter suspends transmission for the specified
time.
Standard applies to all the frames. Standard pause is enabled by
default on the server facing Ethernet ports as well as the network facing
Ethernet ports. This setting affects the connection only when connected
to a peer that is not configured with DCBX protocol.
Per Priority Pause enables you to manage pauses in traffic
according to assigned priorities to CoS frames (for example, on a
per-flow basis). Priority flow control applies to servers with a single
adapter interface, which could carry traffic for LAN, SAN, and IPC. In
this case, SAN traffic is marked with specific COS to identify it as a dis-
tinct flow among other flows (LAN or IPC); you can apply a pause to this
specific COS to assure loss-less SAN frames. When connected to a
DCBX-enabled peer, the pause type is automatically set with per-prior-
ity pause when the peer sends a priority flow control time length value,
regardless of this parameter setting.
3–Interactive Commands
FCoE Menu (Command Line Option -cna)
Description
3-113