Administrator Guide

Table Of Contents
Configuring DCBx
To configure DCBx, follow these steps.
For DCBx, to advertise DCBx TLVs to peers, enable LLDP. For more information, refer to .
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.
1. Enter INTERFACE Configuration mode.
CONFIGURATION mode
interface type slot/port
2. Enter LLDP Configuration mode to enable DCBx operation.
INTERFACE mode
[no] protocol lldp
3. Configure the DCBx version used on the interface, where: auto configures the port to operate using the DCBx version
received from a peer.
PROTOCOL LLDP mode
[no] DCBx version {auto | cee | ieee-v2.5}
cee: configures the port to use CEE (Intel 1.01).
ieee-v2.5: configures the port to use IEEE 802.1Qaz (Draft 2.5).
The default is Auto.
4. Configure the DCBx port role the interface uses to exchange DCB information.
PROTOCOL LLDP mode
[no] DCBx port-role {config-source | auto-downstream | auto-upstream | manual}
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.
The default is Manual.
5. On manual ports only: Configure the PFC and ETS TLVs advertised to DCBx peers.
PROTOCOL LLDP mode
[no] advertise DCBx-tlv {ets-conf | ets-reco | pfc} [ets-conf | ets-reco | pfc] [ets-conf
| ets-reco | pfc]
ets-conf: enables the advertisement of ETS Configuration TLVs.
ets-reco: enables the advertisement of ETS Recommend TLVs.
pfc enables: the advertisement of PFC TLVs.
The default is All PFC and ETS TLVs are advertised.
NOTE:
You can configure the transmission of more than one TLV type at a time; for example, advertise DCBx-tlv
ets-conf ets-reco. You can enable ETS recommend TLVs (ets-reco) only if you enable ETS configuration TLVs
(ets-conf).
To disable TLV transmission, use the no form of the command; for example, no advertise DCBx-tlv pfc ets-reco.
6. On manual ports only: Configure the Application Priority TLVs advertised on the interface to DCBx peers.
PROTOCOL LLDP mode
[no] advertise DCBx-appln-tlv {fcoe}
fcoe: enables the advertisement of FCoE in Application Priority TLVs.
The default is Application Priority TLVs are enabled to advertise FCoE.
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Data Center Bridging (DCB)