Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
OL-8566-01
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
show controllers ethernet-controller
13 collision frames The number of frames that are successfully sent on an interface after 13 collisions occur.
14 collision frames The number of frames that are successfully sent on an interface after 14 collisions occur.
15 collision frames The number of frames that are successfully sent on an interface after 15 collisions occur.
Excessive collisions The number of frames that could not be sent on an interface after 16 collisions occur.
Late collisions After a frame is sent, the number of frames dropped because late collisions were detected while the
frame was sent.
Good (1 coll) frames The number of frames that are successfully sent on an interface after one collision occurs. This value
does not include the number of frames that are not successfully sent after one collision occurs.
Good (>1 coll) frames The number of frames that are successfully sent on an interface after more than one but less than
15
collisions occur. This value does not include the number of frames that are not successfully sent
after more than one collision occurs.
Pause frames The number of pause frames sent on an interface.
VLAN discard frames The number of frames dropped on an interface because the CFI
1
bit is set.
Excess defer frames The number of frames that are not sent after the time exceeds the maximum-packet time.
Too large frames The number of frames sent on an interface that are larger than the maximum allowed frame size.
64 byte frames The total number of frames sent on an interface that are 64 bytes.
127 byte frames The total number of frames sent on an interface that are from 65 to 127 bytes.
255 byte frames The total number of frames sent on an interface that are from 128 to 255 bytes.
511 byte frames The total number of frames sent on an interface that are from 256 to 511 bytes.
1023 byte frames The total number of frames sent on an interface that are from 512 to 1023 bytes.
1518 byte frames The total number of frames sent on an interface that are from 1024 to 1518 bytes.
1. CFI = Canonical Format Indicator
Ta b l e 2-16 Receive Field Descriptions
Field Description
Bytes The total amount of memory (in bytes) used by frames received on an interface, including the
FCS
1
value and the incorrectly formed frames. This value excludes the frame header bits.
Unicast Frames The total number of frames successfully received on the interface that are forwarded to unicast
addresses.
Multicast frames The total number of frames successfully received on the interface that are forwarded to multicast
addresses.
Broadcast frames The total number of frames successfully received on an interface that are forwarded to broadcast
addresses.
No dest, unicast The total number of frames received with a unicast destination address that cannot be forwarded.
No dest, multicast The total number of frames received with a multicast destination address that cannot be
forwarded.
No dest, broadcast The total number of frames received with a broadcast destination address that cannot be
forwarded.
Table 2-15 Transmit Field Descriptions (continued)
Field Description