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Catalyst 2950 and Catalyst 2955 Switch Command Reference
0L-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
show controllers ethernet-controller
This is an example of output from the show controllers ethernet-controller command on an LRE
switch. For this example, Table 2-9 describes the Transmit fields, Table 2-10 describes the Receive
fields, Table 2-11 describes the Transmit and Receive fields, and Table 2-12 describes the LRE Enet Stats
on Switch fields.
Switch# show controllers ethernet-controller longreachethernet0/4
Transmit Receive
64 Bytes 64 Bytes
1 Frames 1 Frames
0 Multicast frames 0 FCS errors
0 Broadcast frames 0 Multicast frames
0 Pause frames 0 Broadcast frames
0 Single defer frames 0 Control frames
0 Multiple defer frames 0 Pause frames
0 1 collision frames 0 Unknown opcode frames
0 2-15 collisions 0 Alignment errors
0 Late collisions 0 Length out of range
0 Excessive collisions 0 Symbol error frames
0 Total collisions 0 False carrier errors
0 Control frames 0 Valid frames, too small
0 VLAN discard frames 0 Valid frames, too large
0 Too old frames 0 Invalid frames, too small
0 Tagged frames 0 Invalid frames, too large
0 Aborted Tx frames 0 Discarded frames
Transmit and Receive
2 Minimum size frames
0 65 to 127 byte frames
0 128 to 255 byte frames
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.
Note For information about the maximum allowed MTU size on the switch, see the system mtu
global configuration command.
Discarded frames The number of frames discarded because of lack of receive buffer memory.
1. FCS = frame check sequence
2. MTU = maximum transmission unit
Table 2-11 Transmit and Receive Field Descriptions
Field Description
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.
1519 to 1522 byte frames The total number of frames that are from 1519 to 1522 bytes.
Table 2-10 Receive Field Descriptions (continued)
Field Description
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