Determine Whether LLDP is Running and Recognizing Peers

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.

1. Display the DCB administrative, operational, and peer configurations.

   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

2. Display the VLAN information for the database.

   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.

3. Ensure that the interface is up on a specified port (port 0/2, in this example).

   SEFOS# show interfaces extreme-ethernet 0/2 description
    
   Interface    Status   Protocol
   ---------    ------   --------
   Ex0/2        up       up

4. Ensure that the interface is up on a specified port (port 0/18, in this example).

   SEFOS# show interfaces extreme-ethernet 0/18 description
    
   Interface    Status   Protocol
   ---------    ------   --------
   Ex0/18        up       up

5. Display the LLDP global configuration details.

   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

6. Display information about the neighbors learned on the interfaces.

   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

7. Display the local configuration, operational status, and peer configuration of the PG.

   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

8. Display the local configuration, operational status, and peer configuration of the PFC feature.

   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

9. Display the local configuration, operational status, and peer configuration of the application feature.

   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