show ethernet-switching statistics mac-learning

Syntax


                        
                           show ethernet-switching statistics mac-learning

Release Information

Command introduced in JUNOS Release 9.4 for EX Series switches.

Description

Display media access control (MAC) learning statistics.

Options

none — (Optional) Display MAC learning statistics for all interfaces.

brief | detail — (Optional) Display the specified level of output.

interface interface-name — (Optional) Display MAC learning statistics for the specified interface.

Required Privilege Level

view

List of Sample Output

show ethernet-switching statistics mac-learning
show ethernet-switching statistics mac-learning detail
show ethernet-switching statistics mac-learning interface ge-0/0/1

Output Fields

Table 1 lists the output fields for the show ethernet-switching statistics mac-learning command. Output fields are listed in the approximate order in which they appear.

Table 1: show ethernet-switching statistics mac-learning Output Fields

Field Name	Field Description	Level of Output
Interface	Name of the interface for which statistics are being reported.	All levels
Learning message from local packets	MAC learning message generated due to packets coming in on the management interface.	All levels
Learning message from transit packets	MAC learning message generated due to packets coming in on network interfaces.	All levels
Learning message with error	MAC learning messages received with errors: Invalid VLAN—The VLAN of the packet does not exist. Invalid MAC—The MAC address is either NULL or a multicast MAC address. Security violation—The MAC address is not an allowed MAC address. Interface down—The MAC address is learned on an interface that is down. Incorrect membership—The MAC address is learned on an interface that is not a member of the VLAN. Interface limit—The number of MAC addresses learned on the interface has exceeded the limit. MAC move limit—This MAC address has moved among multiple interfaces too many times in a given interval. VLAN limit—The number of MAC addresses learned on the VLAN has exceeded the limit. Invalid VLAN index—The VLAN of the packet, while configured, does not yet exist in the kernel. Interface not learning—The MAC address is learned on an interface that does not yet allow learning—for example, the interface is blocked. No nexthop—The MAC address is learned on an interface that does not have a unicast next hop. MAC learning disabled—The MAC address is learned on an interface on which MAC learning has been disabled. Others—The message contains some other error.	All levels

Sample Output

show ethernet-switching statistics mac-learning

user@switch> show ethernet-switching statistics
                           mac-learning

Learning stats: 0 learn msg rcvd, 0 error
  Interface         Local pkts        Transit pkts      Error
  ge-0/0/0.0        0                 0                 0
  ge-0/0/1.0        0                 0                 0
  ge-0/0/2.0        0                 0                 0
  ge-0/0/3.0        0                 0                 0

show ethernet-switching statistics mac-learning detail

user@switch> show ethernet-switching statistics
                           mac-learning detail

Learning stats: 0 learn msg rcvd, 0 error

    Interface: ge-0/0/0.0
    Learning message from local packets:   0
    Learning message from transit packets: 1
    Learning message with error:           0
      Invalid VLAN:               0       Invalid MAC:                  0
      Security violation:         0       Interface down:               0
      Incorrect membership:       0       Interface limit:              0
      MAC move limit:             0       VLAN limit:                   0
      Invalid VLAN index:         0       Interface not learning:       0
      No nexthop:                 0       MAC learning disabled:        0
      Others:                     0

    Interface: ge-0/0/1.0
    Learning message from local packets:   0
    Learning message from transit packets: 2
    Learning message with error:           0
      Invalid VLAN:               0       Invalid MAC:                  0
      Security violation:         0       Interface down:               0
      Incorrect membership:       0       Interface limit:              0
      MAC move limit:             0       VLAN limit:                   0
      Invalid VLAN index:         0       Interface not learning:       0
      No nexthop:                 0       MAC learning disabled:        0
      Others:                     0

show ethernet-switching statistics mac-learning interface ge-0/0/1

user@switch> show ethernet-switching statistics
                           mac-learning interface ge-0/0/1


Interface         Local pkts        Transit pkts      Error
ge-0/0/1.0        0                 1                 1