H3C Technologies H3C S10500 Series Switches User Manual

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# Enable LLDP globally.

[SwitchC] lldp global enable

# Create Ethernet frame header ACL 4000.

[SwitchC] acl number 4000 name DCBX

# Configure the ACL to permit FCoE packets (whose protocol number is 0x8906) to pass through.

[SwitchC-acl-ethernetframe-4000] rule 0 permit type 8906 ffff

# Configure the ACL to permit FIP protocol packets (whose protocol number is 0x8914) to pass

through.

[SwitchC-acl-ethernetframe-4000] rule 5 permit type 8914 ffff

[SwitchC-acl-ethernetframe-4000] quit

# Create a class named DCBX, configure the operator of the class as OR, and use ACL 4000 as
the match criterion of the class.

[SwitchC] traffic classifier DCBX operator or

[SwitchC-classifier-DCBX] if-match acl 4000

[SwitchC-classifier-DCBX] quit

# Create a behavior named DCBX, and configure the behavior to mark packets with 802.1p

priority value 3.

[SwitchC] traffic behavior DCBX

[SwitchC-behavior-DCBX] remark dot1p 3

[SwitchC-behavior-DCBX] quit

# Create a QoS policy named DCBX, associate class DCBX with traffic behavior DCBX in the QoS

policy, and specify that the association apply to DCBX.

[SwitchC] qos policy DCBX

[SwitchC-qospolicy-DCBX] classifier DCBX behavior DCBX mode dcbx

[SwitchC-qospolicy-DCBX] quit

# Enable LLDP and DCBX TLV advertising on interface Ten-GigabitEthernet 1/0/1.

[SwitchC] interface ten-gigabitethernet 1/0/1

[SwitchC-Ten-GigabitEthernet1/0/1] lldp enable

[SwitchC-Ten-GigabitEthernet1/0/1] lldp tlv-enable dot1-tlv dcbx

# Apply QoS policy DCBX to the outgoing traffic of Ten-GigabitEthernet 1/0/1.

[SwitchC-Ten-GigabitEthernet1/0/1] qos apply policy DCBX outbound

Configure PFC:
# Enable PFC in auto mode on interface Ten-GigabitEthernet 1/0/1.

[SwitchC-Ten-GigabitEthernet1/0/1] priority-flow-control auto

# Enable PFC for 802.1p priority 3 on Ten-GigabitEthernet 1/0/1.

[SwitchC-Ten-GigabitEthernet1/0/1] priority-flow-control no-drop dot1p 3

# Configure Ten-GigabitEthernet 1/0/1 to trust the 802.1p priority carried in incoming packets.

[SwitchC-Ten-GigabitEthernet1/0/1] qos trust dot1p

[SwitchC-Ten-GigabitEthernet1/0/1] quit

# Enable PFC by force on Ten-GigabitEthernet 1/0/5.

[SwitchC] interface ten-gigabitethernet 1/0/5

[SwitchC-Ten-GigabitEthernet1/0/5] priority-flow-control enable

# Enable PFC for 802.1p priority 3 on Ten-GigabitEthernet 1/0/5.

[SwitchC-Ten-GigabitEthernet1/0/5] priority-flow-control no-drop dot1p 3

# Configure Ten-GigabitEthernet 1/0/5 to trust the 802.1p priority carried in incoming packets.

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