Dell Force10 S4810P - Dcbx Prerequisites and Restrictions; Dcbx Configuration Procedure

328 | Data Center Bridging (DCB)
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DCBx Prerequisites and Restrictions
The following prerequisites and restrictions apply when you configure DCBx operation on a port:
• DCBx requires LLDP in both send (TX) and receive (RX) mode to be enabled on a port interface
(
protocol lldp mode command; refer to the example in CONFIGURATION versus INTERFACE
Configurations in the Link Layer Discovery Protocol (LLDP) chapter). If a multiple DCBx peer ports
are detected on a local DCBx interface, LLDP is shut down.
• The CIN version of DCBx supports only PFC, ETS, and FCOE; it does not support iSCSI, backward
congestion management (BCN), logical link down (LLDF), and network interface virtualization
(NIV).
DCBx Configuration Procedure
To configure an S4810 or S4820Tfor DCBx operation in a data center network, you must:
1. Configure ToR- and FCF-facing interfaces as auto-upstream ports.
2. Configure server-facing interfaces as auto-downstream ports.
3. Configure a port to operate in a configuration-source role.
4. Configure ports to operate in a manual role.
To verify the DCBx configuration on a port, use the
show interface DCBx detail command (Figure 13-16).
Configure DCBx operation at the interface level on a switch or globally on the switch.
Prerequisite: DCBx requires LLDP to be enabled to advertise DCBx TLVs to peers. For more
information, refer to Chapter 29, Link Layer Discovery Protocol (LLDP).
Configuring DCBx on an Interface
To configure DCBx operation on an interface, follow these steps:
Step Task Command Command Mode
1 Enter INTERFACE Configuration mode. interface type slot/port CONFIGURATION
2 Enter LLDP Configuration mode to enable DCBx
operation.
[no] protocol lldp
INTERFACE