Verifying That MAC Accounting Is Working

Purpose

Verify that MAC accounting is enabled and the system is counting packets and collecting statistics.

Action

  1. Verify that MAC accounting is enabled.
    content_copy zoom_out_map
    MAC flags (S - static MAC, D - dynamic MAC, L - locally learned
        SE - statistics enabled, NM - non configured MAC, R - remote PE MAC)

Routing instance : default-switch
    Vlan                MAC                 MAC         Age    Logical
    name                address             flags              interface
    VLAN101             88:e0:f3:bb:07:f0   D,SE           -   ae20.0


MAC flags (S - static MAC, D - dynamic MAC, L - locally learned
       SE - statistics enabled, NM - non configured MAC, R - remote PE MAC)

Routing instance : default-switch
    Vlan                MAC                 MAC         Age    Logical
    name                address             flags              interface
    VLAN102             88:e0:f3:bb:07:f0   D,SE           -   ae20.0


MAC flags (S - static MAC, D - dynamic MAC, L - locally learned
       SE - statistics enabled, NM - non configured MAC, R - remote PE MAC)

Routing instance : default-switch
    Vlan                MAC                 MAC         Age    Logical
    name                address             flags              interface
    VLAN103             88:e0:f3:bb:07:f0   D,SE           -   ae20.0
[...output truncated...]
  2. Display MAC accounting statistics for all VLANs associated with an interface.
    content_copy zoom_out_map
     Local interface: ae20.0, Index: 1039
   Broadcast packets:                   115
   Broadcast bytes  :                  6900
   Multicast packets:                395113
   Multicast bytes  :              61622869
   Flooded packets  :                     0
   Flooded bytes    :                     0
   Unicast packets  :                  1419
   Unicast bytes    :                117924
   Current MAC count:                     4 (Limit 8192)
[...output truncated...]
  3. Display MAC accounting statistics for each address in the MAC address table.
    user@switch> show ethernet-switching table extensive
    content_copy zoom_out_map
    MAC address: 88:e0:f3:bb:07:f0
  Routing instance: default-switch
VLAN ID: 101
   Learning interface: ae20.0
   Layer 2 flags: in_hash,in_ifd,in_ifl,in_vlan,in_rtt,acct,kernel,in_ifbd
   Epoch: 6                            Sequence number: 13
   Learning mask: 0x00000020
MAC address used as destination:
Packet count:                     0  Byte count:                     0
MAC address used as source:
Packet count:                     9  Byte count:                  1116

MAC address: 88:e0:f3:bb:07:f0
  Routing instance: default-switch
VLAN ID: 102
   Learning interface: ae20.0
   Layer 2 flags: in_hash,in_ifd,in_ifl,in_vlan,in_rtt,acct,kernel,in_ifbd
   Epoch: 6                            Sequence number: 13
   Learning mask: 0x00000020
MAC address used as destination:
Packet count:                     0  Byte count:                     0
MAC address used as source:
Packet count:                     9  Byte count:                  1116

MAC address: 88:e0:f3:bb:07:f0
  Routing instance: default-switch
VLAN ID: 103
   Learning interface: ae20/0
   Layer 2 flags: in_hash,in_ifd,in_ifl,in_vlan,in_rtt,acct,kernel,in_ifbd
   Epoch: 6                            Sequence number: 13
   Learning mask: 0x00000020
MAC address used as destination:
Packet count:                     0  Byte count:                     0
MAC address used as source:
Packet count:                     9  Byte count:                  1116
[...output truncated...]

Meaning

In the output for show ethernet-switching table, the MAC flag SE indicates that MAC accounting is enabled for VLANs 101, 102, and 103, which are all associated with the default-switch routing instance.
The output for show ethernet-switching statistics displays packet statistics and the current number of MAC addresses learned by the VLANs associated with aggregated Ethernet interface ae20.0.
The output for show ethernet-switching table extensive shows information for each address in the MAC address table. In particular, it displays the number of packets sent to and received by an interface, which is identified by a MAC address.
The output from the three commands demonstrates that MAC accounting is working properly. That is, MAC accounting is enabled on VLANs 101, 102, and 103, and as a result, you can view statistics for each of these VLANs, aggregated Ethernet interface ae20.0, and each MAC address.

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