Dcbx Example - Dell Force10 S4810P Configuration Manual

If you configure a DCBx port to operate with a specific version (
command in the
configured version, including fast and slow transmit timers and message formats. If a DCBx frame with a
different version is received, a syslog message is generated and the peer version is recorded in the peer
status table. If the frame cannot be processed, it is discarded and the discard counter is incremented.
Note: Because DCBx TLV processing is best effort, it is possible that CIN frames may be processed
when DCBx is configured to operate in CEE mode and vice versa. In this case, the unrecognized TLVs
cause the unrecognized TLV counter to be incremented, but the frame is processed and is not discarded.
Legacy DCBx (CIN and CEE) supports the DCBx control state machine that is defined to maintain the
sequence number and acknowledge number sent in the DCBx control TLVs.

DCBx Example

Figure 13-4
two switches are used for uplinks configured as DCBx auto-upstream ports. The S4810 or S4820T is
connected to third-party, top-of-rack (ToR) switches through 40GbE uplinks. The ToR switches are part of
a Fibre Channel storage network.
• The internal ports (ports 1-32) connected to the 10GbE backplane are configured as auto-downstream
ports.
On the S4810 and S4820T, PFC and ETS use DCBx to exchange link-level configuration with DCBx
peer devices.
326
| Data Center Bridging (DCB)
DCBx Configuration
shows how DCBx is used. The external 40GbE ports on the base module (ports 33 and 37) of
Procedure), DCBx operations are performed according to the
DCBx version {cee | cin | ieee-v2.5}