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
Related Commands
FCS errors The total number of frames received on an interface that have a valid length (in bytes) but do not
have the correct FCS values.
Oversize frames The number of frames received on an interface that are larger than the maximum allowed frame
size.
Undersize frames The number of frames received on an interface that are smaller than 64 bytes.
Collision fragments The number of collision fragments received on an interface.
Minimum size frames The total number of frames that are the minimum frame size.
65 to 127 byte frames The total number of frames that are from 65 to 127 bytes.
128 to 255 byte frames The total number of frames that are from 128 to 255 bytes.
256 to 511 byte frames The total number of frames that are from 256 to 511 bytes.
512 to 1023 byte frames The total number of frames that are from 512 to 1023 bytes.
1024 to 1518 byte frames The total number of frames that are from 1024 to 1518 bytes.
Flooded frames The total number of flooded frames received on an interface.
Overrun frames The total number of overrun frames received on an interface.
VLAN filtered frames The total number of frames that are filtered because of the VLAN information in the frame, such
as an IEEE 802.1Q tag or a VLAN ID other than the IDs configured on the interface. This value
does not include frames that are smaller than 64 bytes or larger than the maximum frame size
Source routed frames The total number of frames received on an interface that are dropped because the source route bit
is set in the source address of the native frame. This value includes frames that have a valid FCS
value and are between 64
bytes and the maximum allowed frame size.
Valid oversize frames The number of frames received on an interface that are larger than the maximum allowed frame
size and have valid FCS values. The frame size includes the FCS value but does not include the
VLAN tag.
Pause frames The number of pause frames received on an interface.
Symbol error frames The number of frames received on an interface that have symbol errors.
Invalid frames, too large The number of frames received that were larger than maximum allowed MTU
2
size (including
the FCS bits and excluding the frame header) and that have either an FCS error or an alignment
error.
Valid frames, too large The number of frames received on an interface that are larger than the maximum allowed frame
size.
Invalid frames, too small The number of frames received that are smaller than 64 bytes (including the FCS bits and
excluding the frame header) and that have either an FCS error or an alignment error.
Valid frames, too small The number of frames received on an interface that are smaller than 64 bytes (or 68 bytes for
VLAN-tagged frames) and have valid FCS values. The frame size includes the FCS bits but
excludes the frame header bits.
1. FCS = frame check sequence
2. MTU = maximum transmission unit
Table 2-16 Receive Field Descriptions (continued)
Field Description