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Monitoring Ethernet Switching on EX Series Switches (J-Web)

Purpose

Note:

This topic applies only to the J-Web Application package.

Use the monitoring feature to view details that the EX Series switch maintains in its Ethernet switching table. These are details about the nodes on the LAN, such as VLAN name, VLAN ID, member interfaces, MAC addresses, and so on.

Action

To display Ethernet switching details in the J-Web interface, select Monitor > Switching > Ethernet Switching.

To view Ethernet switching details in the CLI, enter the following commands:

  • show ethernet-switching table

  • show vlans

  • show ethernet-switching interfaces

Meaning

Table 1 summarizes the Ethernet switching output fields.

Table 1: Ethernet Switching Output Fields

Field

Value

Ethernet Switching Table Information or MAC Table Summary

MAC Table Count

The number of entries added to the Ethernet switching table.

MAC Table Learned

The number of dynamically learned MAC addresses in the Ethernet switching table.

Ethernet Switching Table Information or MAC Table Information

VLAN

The VLAN name.

MAC Address

The MAC address associated with the VLAN. If a VLAN range has been configured for a VLAN, the output displays the MAC addresses for the entire series of VLANs that were created with that name.

Type

Note:

This option is not supported on EX4300 switches.

The type of MAC address. Values are:

  • static—The MAC address is manually created.

  • learn—The MAC address is learned dynamically from a packet's source MAC address.

  • flood—The MAC address is unknown and flooded to all members.

MAC Flag

Note:

This option is supported only on EX4300 switches.

Status of MAC address learning properties for each interface. Values are:

  • S - Static MAC address is configured

  • D - Dynamic MAC address is configured

  • L - Locally learned MAC address is configured

  • P - Persistent static

  • SE - MAC accounting is enabled

  • NM - Nonconfigured MAC

  • R - Remotely learned MAC address is configured

Age

The time remaining before the entry ages out and is removed from the Ethernet switching table.

Interfaces

The associated interfaces.

MAC Learning Log or Interface Information

Interface Name

Note:

This option is supported only on EX4300 switches.

The name of the Interface.

VLAN-Name

The VLAN name.

VLAN ID

Note:

This option is supported only on EX4300 switches.

The VLAN ID.

MAC Address

Note:

This option is not supported on EX4300 switches.

The learned MAC address associated with the VLAN ID.

MAC Limit

Note:

This option is supported only on EX4300 switches.

Maximum number of MAC addresses.

STP State

Note:

This option is supported only on EX4300 switches.

The state of the STP interface. Values are Discarding or Receiving.

Flags

Note:

This option is supported only on EX4300 switches.

Specifies the logical interface flags. The flag options are:

  • DL - disable learning

  • AD - packet action drop

  • LH - MAC limit hit

  • DN - interface down

Tagging

Note:

This option is supported only on EX4300 switches.

States whether the VLAN associated with interface is tagged or untagged.

Time

Note:

This option is not supported on EX4300 switches.

Time at which the MAC address was added or deleted from the MAC learning log.

State

Note:

This option is not supported on EX4300 switches.

Operating state of the interface. Values are Up or Down.