S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Managed Pro Switches 
Monitor the System  User Manual305
Total Packets Transmitted The number of frames that were transmitted by the port.
Unicast Packets Transmitted The total number of packets that higher-level protocols requested be transmitted 
to a subnetwork-unicast address, including those that were discarded or not 
sent.
Multicast Packets 
T
ransmitted
The total number of packets that higher-level protocols requested be transmitted 
to a multicast address, including those that were discarded or not sent.
Broadcast Packets 
Transmitted
The total number of packets that higher-level protocols requested be transmitted 
to the broadcast address, including those that were discarded or not sent.
T
ransmit Packets Discarded The number of outbound packets which were chosen to be discarded even 
though no errors were detected to prevent them from being delivered to a 
higher-layer protocol. A possible reason for discarding a packet could be to free 
up buf
fer space.
Total Transmit Errors The sum of single, multiple, and excessive collisions.
Tx FCS Errors The total number of packets sent with a length (excluding framing bits, but 
including FCS octets) of between 64 and 1518 octets, inclusive, but included a 
bad frame check sequence (FCS) with an integral number of octets.
Total Transmit Packets 
Discarded
The sum of single collision frames discarded, multiple collision frames 
discarded, and excessive frames discarded.
Single Collision Frames The number of successfully transmitted frames on a particular interface for 
which transmission is inhibited by exactly one collision.
Multiple Collision Frames The number of successfully transmitted frames on a particular interface for 
which transmission is inhibited by more than one collision.
Excessive Collision Frames The number of frames for which transmission on a particular interface fails due 
to excessive collisions.
Dropped Transmit Frames The number of transmit frames discarded at the selected port.
STP BPDUs Received The number of STP BPDUs received at the selected port.
STP BPDUs Transmitted The number of STP BPDUs transmitted from the selected port.
RSTP BPDUs Received The number of RSTP BPDUs received at the selected port.
RSTP BPDUs Transmitted The number of RSTP BPDUs transmitted from the selected port.
MSTP BPDUs Received The number of MSTP BPDUs received at the selected port.
MSTP BPDUs Transmitted The number of MSTP BPDUs transmitted from the selected port.
802.3x Pause Frames 
T
ransmitted
The number of MAC control frames transmitted on the interface with an opcode 
indicating the PAUSE operation. 
This counter does not increment when the 
interface is operating in half-duplex mode.
EAPOL Frames Received The number of valid EAPoL frames of any type that were received by this 
authenticator
.
Table 67.  Detailed port statistics (continued)
Field Description