Reference Guide

300 | Data Center Bridging (DCB)
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DCBx Configuration Procedure
To configure an S5000for 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 13-11).
Configure DCBx operation at the interface level on a switch or globally on the switch.
Prerequisite: To advertise DCBx TLVs to peers, DCBx requires LLDP to be enabled. For more
information, see Chapter 30, 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
3 Configure the DCBx version used on the interface, where:
auto configures the port to operate using the DCBx version
received from a peer.
• cee configures the port to use CEE (Intel 1.01).
• cin configures the port to use Cisco-Intel-Nuova
(DCBx 1.0).
• ieee-v2.5 configures the port to use IEEE 802.1Qaz
(Draft 2.5).
Default: Auto.
[no] DCBx version {auto |
cee | cin | ieee-v2.5}
PROTOCOL LLDP
4 Configure the DCBx port role used by the interface to
exchange DCB information, where:
• auto-upstream configures the port to receive a peer
configuration. The configuration source is elected from
auto-upstream ports.
• auto-downstream configures the port to accept the
internally propagated DCB configuration from a
configuration source.
• config-source configures the port to serve as the
configuration source on the switch.
• manual configures the port to operate only on
administer-configured DCB parameters. The port does
not accept a DCB configuration received from a peer or
a local configuration source.
Default: Manual.
[no] DCBx port-role
{config-source |
auto-downstream |
auto-upstream | manual}
PROTOCOL LLDP