GARP VLAN Registration Protocol statistics

Learn about Bridge Protocol Data Unit (BPDU), Generic Attribute Registration Protocol (GARP), and GARP VLAN Registration Protocol (GVRP) displayed by running the entstat -all command. You can also view examples.

BPDU refers to all protocol packets that are exchanged between the switch and the Shared Ethernet Adapter. The only bridge protocol currently available with the Shared Ethernet Adapter is GARP. GARP is a generic protocol used to exchange attribute information between two entities. The only type of GARP currently available on the Shared Ethernet Adapter is GVRP. With GVRP, the attributes exchanged are VLAN values.

BPDU statistics

The BPDU statistics include all BPDU packets sent or received.

Table 1. Descriptions of BPDU statistics
BPDU statistic	Description
Transmit	Packets Number of packets sent. Failed packets Number of packets that could not be sent (for example, packets that could not be sent because there was no memory to allocate the outgoing packet).
Receive	Packets Number of packets received. Unprocessed Packets Packets that could not be processed because the protocol was not running at the time. Non-contiguous Packets Packets that were received in several packet fragments. Packets with unknown PID Packets that had a protocol ID (PID) different than GARP. A high number is typical because the switch might be exchanging other BPDU protocol packets that the Shared Ethernet Adapter does not support. Packets with Wrong Length Packets whose specified length (in the Ethernet header) does not match the length of the Ethernet packet received.

GARP statistics

The GARP statistics include those BPDU packets sent or received that are of type GARP.

Table 2. Descriptions of GARP statistics
GARP statistic	Description
Transmit	Packets Number of packets sent. Failed packets Number of packets that could not be sent (for example, packets that could not be sent because there was no memory to allocate the outgoing packet). Leave All Events Packets sent with event type Leave All. Join Empty Events Packets sent with event type Join Empty Join In Events Packets sent with event type Join In Leave Empty Events Packets sent with event type Leave Empty Leave In Events Packets sent with event type Leave In Empty Events Packets sent with event type Empty
Receive	Packets Number of packets received Unprocessed Packets Packets that could not be processed because the protocol was not running at the time. Packets with Unknown Attr Type: Packets with an unsupported attribute type. A high number is typical because the switch might be exchanging other GARP protocol packets that the Shared Ethernet Adapter does not support. For example, GARP Multicast Registration Protocol (GMRP). Leave All Events Packets received with event type Leave All Join Empty Events Packets received with event type Join Empty Join In Events Packets received with event type Join In Leave Empty Events Packets received with event type Leave Empty Leave In Events Packets received with event type Leave In Empty Events Packets received with event type Empty

GVRP statistics

The GVRP statistics include those GARP packets sent or received that are exchanging VLAN information using GVRP.

Table 3. Descriptions of GVRP statistics
GVRP statistic	Description
Transmit	Packets Number of packets sent Failed packets Number of packets that could not be sent (for example, packets that could not be sent because there was no memory to allocate the outgoing packet). Leave All Events Packets sent with event type Leave All. Join Empty Events Packets sent with event type Join Empty Join In Events Packets sent with event type Join In Leave Empty Events Packets sent with event type Leave Empty Leave In Events Packets sent with event type Leave In Empty Events Packets sent with event type Empty
Receive	Packets Number of packets received. Unprocessed Packets Packets that could not be processed because the protocol was not running at the time. Packets with Invalid Length Packets that contains one or more attributes whose length does not correspond to its event type. Packets with Invalid Event Packets that contain one or more attributes whose event type is invalid. Packets with Invalid Value Packets that contain one or more attributes whose value is invalid (for example, an invalid VLAN ID). Total Invalid Attributes Sum of all of the attributes that had an invalid parameter. Total Valid Attributes Sum of all of the attributes that had no invalid parameters. Leave All Events Packets sent with event type Leave All. Join Empty Events Packets sent with event type Join Empty Join In Events Packets sent with event type Join In Leave Empty Events Packets sent with event type Leave Empty Leave In Events Packets sent with event type Leave In Empty Events Packets sent with event type Empty

Example statistics

Running the entstat -all command returns results similar to the following.

--------------------------------------------------------------
Statistics for adapters in the Shared Ethernet Adapter ent3
--------------------------------------------------------------
Number of adapters: 2
SEA Flags: 00000009
    < THREAD >
    < GVRP >
VLAN IDs :
    ent2: 1 
Real Side Statistics:
    Packets received: 0
    Packets bridged: 0
    Packets consumed: 0
    Packets transmitted: 0
    Packets dropped: 0
Virtual Side Statistics:
    Packets received: 0
    Packets bridged: 0
    Packets consumed: 0
    Packets transmitted: 0
    Packets dropped: 0
Other Statistics:
    Output packets generated: 0
    Output packets dropped: 0
    Device output failures: 0
    Memory allocation failures: 0
    ICMP error packets sent: 0
    Non IP packets larger than MTU: 0
    Thread queue overflow packets: 0

--------------------------------------------------------------
Bridge Protocol Data Units (BPDU) Statistics:

Transmit Statistics:                          Receive Statistics:
--------------------                          -------------------
Packets: 2                                    Packets: 1370
Failed packets: 0                             Unprocessed Packets: 0
                                              Non-contiguous Packets: 0
                                              Packets w/ Unknown PID: 1370
                                              Packets w/ Wrong Length: 0

---------------------------------------------------------------
General Attribute Registration Protocol (GARP) Statistics:

Transmit Statistic:                           Receive Statistics:
-------------------                           -------------------
Packets: 2                                    Packets: 0
Failed packets: 0                             Unprocessed Packets: 0
                                              Packets w/ Unknow Attr. Type: 0

Leave All Events: 0                           Leave All Events: 0
Join Empty Events: 0                          Join Empty Events: 0
Join In Events: 2                             Join In Events: 0
Leave Empty Events: 0                         Leave Empty Events: 0
Leave In Events: 0                            Leave In Events: 0
Empty Events: 0                               Empty Events: 0

---------------------------------------------------------------
GARP VLAN Registration Protocol (GVRP) Statistics:

Transmit Statistics:                          Receive Statistics:
--------------------                          -------------------
Packets: 2                                    Packets: 0
Failed packets: 0                             Unprocessed Packets: 0
                                              Attributes w/ Invalid Length: 0
                                              Attributes w/ Invalid Event: 0
                                              Attributes w/ Invalid Value: 0
                                              Total Invalid Attributes: 0
                                              Total Valid Attributes: 0

Leave All Events: 0                           Leave All Events: 0
Join Empty Events: 0                          Join Empty Events: 0
Join In Events: 2                             Join In Events: 0
Leave Empty Events: 0                         Leave Empty Events: 0
Leave In Events: 0                            Leave In Events: 0
Empty Events: 0                               Empty Events: 0