Line Description
Last clearing... Displays the time when the show interfaces counters where 
cleared.
Queuing strategy... States the packet queuing strategy. FIFO means first in first out.
Input Statistics: Displays all the input statistics including:
• Number of packets and bytes into the interface
• Number of packets with VLAN tagged headers
• Packet size and the number of those packets inbound to the 
interface
• Number of Multicast and Broadcast packets:
– Multicasts = number of MAC multicast packets
– Broadcasts = number of MAC broadcast packets
• Number of runts, giants, and throttles packets:
– runts = number of packets that are less than 64B
– giants = packets that are greater than the MTU size
– throttles = packets containing PAUSE frames
• Number of CRC, overrun, and discarded packets:
– CRC = packets with CRC/FCS errors
– overrun = number of packets discarded due to FIFO 
overrun conditions
– discarded = the sum of runts, giants, CRC, and 
overrun packets discarded without any processing
Output Statistics: Displays output statistics sent out of the interface including:
• Number of packets, bytes, and underruns out of the interface
• Packet size and the number of those packets outbound to 
the interface
• Number of Multicast, Broadcast, and Unicast packets:
– Multicasts = number of MAC multicast packets
– Broadcasts = number of MAC broadcast packets
– Unicasts = number of MAC unicast packets
• Number of VLANs, throttles, discards, and collisions::
– Vlans = number of VLAN tagged packets
– throttles = packets containing PAUSE frames
– discarded = number of packets discarded without 
any processing
– collisions = number of packet collisions
– wred=count both packets discarded in the MAC and 
in the hardware-based queues
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