Verifying DCB and LLDP Configurations
Determine Whether Interfaces Are Active
Disable DCB for Each Interface
Enable and Disable a Specific DCB Feature
Configure the Mode for the DCB Feature
Display DCBX Feature Statistics and Control Information
Display Output of Unstarted DCBX Protocol Exchange
Display Output of DCBX TLV Exchange
In a correct DCB configuration, LLDP must be running and recognizing peers. If LLDP does not show the neighbors for port 2 and port 18, perform the following steps to determine whether the peers are configured correctly and both links are up.
SEFOS# show interfaces extreme-ethernet 0/2 dcb priority-group detail SEFOS# show interfaces extreme-ethernet 0/2 dcb priority-flow-control detail SEFOS# show interfaces extreme-ethernet 0/2 dcb application-etype-fcoe detail SEFOS# show interfaces extreme-ethernet 0/18 dcb priority-group detail SEFOS# show interfaces extreme-ethernet 0/18 dcb priority-flow-control detail SEFOS# show interfaces extreme-ethernet 0/18 dcb application-etype-fcoe detailshow SEFOS# show interfaces extreme-ethernet 0/2 dcb counters SEFOS# show interfaces extreme-ethernet 0/18 dcb counters
SEFOS# show vlan 201 Vlan database ------------- Vlan ID : 201 Member Ports : Ex0/2, Ex0/18 Untagged Ports : None Forbidden Ports : None Name : Status : Permanent
In the following steps, DCB features are exchanged, and DCB is in operating mode with its peer.
SEFOS# show interfaces extreme-ethernet 0/2 description Interface Status Protocol --------- ------ -------- Ex0/2 up up
SEFOS# show interfaces extreme-ethernet 0/18 description Interface Status Protocol --------- ------ -------- Ex0/18 up up
SEFOS# show lldp LLDP is enabled Transmit Interval : 30 Holdtime Multiplier : 4 Reinitialization Delay : 2 Tx Delay : 2 Notification Interval : 5 Chassis Id SubType : Mac Address Chassis Id : 00:14:4f:6c:5e:cf
SEFOS# show lldp neighbors Capability Codes : (R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device, (W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other Chassis ID Local Intf Hold-time Capability Port Id ---------- ---------- --------- ---------- ------- 00:1b:21:4a:ab:2d Ex0/18 120 00:1b:21:4a:ab:2d 00:0d:ec:a4:79:40 Ex0/2 120 B Eth1/33 Total Entries Displayed : 2
SEFOS# show interfaces extreme-ethernet 0/2 dcb priority-group detail Port : Ex0/2 Show Type : Admin Config Feature : Priority Group Enable : true Advertise : true Willing : false Group Bandwidth : 50% 30% 20% 0% 0% 0% 0% 0% Priority Group ID: 0 0 0 1 2 2 2 15 Max Traffic Class: 8 Show Type : Oper Config Feature : Priority Group Oper Version : 0 Max Version : 0 Errors : 0x0 - none Operational Mode : true Syncd with Peer : true Group Bandwidth : 50% 30% 20% 0% 0% 0% 0% 0% Priority Group ID: 0 0 0 1 2 2 2 15 Max Traffic Class: 8 Show Type : Peer Config Feature : Priority Group Local Interface : Ex0/2 Status : successful Enable : true Willing : false Group Bandwidth : 50% 50% 0% 0% 0% 0% 0% 0% Priority Group ID: 0 0 0 1 0 0 0 0 Max Traffic Class: 2 ------------------------------------------------------------ Total Entries Displayed : 1
SEFOS# show interfaces extreme-ethernet 0/2 dcb priority-flow-control detail Port : Ex0/2 Show Type : Admin Config Feature : Priority Flow Control Enable : true Advertise : true Willing : false Priority Mask : 0 0 0 1 0 0 0 0 Max Traffic Class: 8 Show Type : Oper Config Feature : Priority Flow Control Oper Version : 0 Max Version : 0 Errors : 0x0 - none Operational Mode : true Syncd with Peer : true Priority Mask : 0 0 0 1 0 0 0 0 Max Traffic Class: 8 Show Type : Peer Config Feature : Priority Flow Control Local Interface : Ex0/2 Status : successful Enable : true Willing : false Priority Mask : 0 0 0 1 0 0 0 0 Max Traffic Class: 8 ------------------------------------------------------------ Total Entries Displayed : 1
SEFOS# show interfaces extreme-ethernet 0/2 dcb application-etype-fcoe detail Port : Ex0/2 Show Type : Admin Config Feature : Application FCoE Enable : true Advertise : true Willing : false Priority Map : 0 0 0 1 0 0 0 0 Show Type : Oper Config Feature : Application FCoE Oper Version : 0 Max Version : 0 Errors : 0x0 - none Operational Mode : true Syncd with Peer : true Priority Map : 0 0 0 1 0 0 0 0 Show Type : Peer Config Feature : Application FCoE Local Interface : Ex0/2 Status : successful Enable : true Willing : false Priority Map : 0 0 0 1 0 0 0 0
In addition to the commands shown in this section, you can also use the following commands to display information:
show lldp
show lldp interface
show lldp neighbor
show lldp traffic