# Display the running status, basic configuration, and packet forwarding on Layer 2 Ethernet interface GigabitEthernet0/0/1.
display interface gigabitethernet 0/0/1 GigabitEthernet0/0/1 current state : UP Line protocol current state : UP Description:lineate-port-0 Switch Port, PVID : 1, TPID : 8100[Hex], The Maximum Frame Length is 9216 IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 1047-80ac-cc60 Last physical up time : 2012-02-10 01:46:35 UTC+08:00 Last physical down time : 2012-02-10 01:46:30 UTC+08:00 Current system time: 2012-02-11 11:11:36+08:00 Port Mode: COMMON COPPER Speed : 1000, Loopback: NONE Duplex: FULL, Negotiation: ENABLE Mdi : AUTO Last 300 seconds input rate 80 bits/sec, 0 packets/sec Last 300 seconds output rate 152 bits/sec, 0 packets/sec Input peak rate 57064 bits/sec,Record time: 2012-02-10 07:43:17 Output peak rate 39872 bits/sec,Record time: 2012-02-11 11:11:36 Input: 71004 packets, 9224321 bytes Unicast: 20023, Multicast: 49102 Broadcast: 1879, Jumbo: 0 Discard: 0, Total Error: 0 CRC: 0, Giants: 0 Jabbers: 0, Throttles: 0 Runts: 0, Alignments: 0 Symbols: 0, Ignoreds: 0 Frames: 0 Output: 20221 packets, 1679706 bytes Unicast: 19989, Multicast: 0 Broadcast: 232, Jumbo: 0 Discard: 0, Total Error: 0 Collisions: 0, ExcessiveCollisions: 0 Late Collisions: 0, Deferreds: 0 Input bandwidth utilization threshold : 100.00% Output bandwidth utilization threshold: 100.00% Input bandwidth utilization : 0.01% Output bandwidth utilization : 0.01%
Table 5-2 Description of the display interface command output
current state | Current interface status:
|
Line protocol current state | Link layer protocol status of the interface:
|
Description | Interface description. To configure the description for an interface, run the description command. |
Switch Port, PVID | Default VLAN ID of the interface. |
TPID | Indicates the type of frames that are supported on the interface. By default, TPID is displayed as 0x8100, indicating an 802.1Q frame. This field is displayed only when the interface is a Layer 2 interface. |
The Maximum Frame Length | Maximum frame length allowed by the interface. |
IP Sending Frames' Format | Format of the frame contained in the sent IP packet, which can be PKTFMT_ETHNT_2, Ethernet_802.3, or Ethernet_SNAP. |
Hardware address | MAC address of the device. |
Last physical up time | Last time the interface went Up physically. If this field displays "-", the physical status of the interface does not change. |
Last physical down time | Last time the interface went Down physically. If this field displays "-", the physical status of the interface does not change. |
Current system time | Current system time. |
Port Mode | Working mode of the interface:
|
Speed | Current rate of the interface. |
Loopback | Loopback configuration of the interface. The loopback command configures loopback on an interface. |
Duplex | Duplex mode of the interface. |
Negotiation | Auto-negotiation mode of the interface. |
Mdi | Network cable type of the interface. |
Last 300 seconds input rate | Incoming packet rate [bits per second and packets per second] within the last 300 seconds. |
Last 300 seconds output rate | Outgoing packet rate [bits per second and packets per second] within the last 300 seconds. |
Input peak rate | Maximum incoming packet rate. |
Output peak rate | Maximum outgoing packet rate. |
Input | Total number of received packets. |
Output | Total number of sent packets. |
Unicast | Number of unicast packets received or sent by the interface. |
Multicast | Number of multicast packets received or sent by the interface. |
Broadcast | Number of broadcast packets received or sent by the interface. |
Jumbo | Number of jumbo frames received or sent by the interface. |
Discard | Number of packets discarded by the interface during physical layer detection. These packets are discarded because the interface is congested. Layer 2 Ethernet interfaces of the device do not support this statistical item. |
Total Error | Number of error packets found during physical layer detection. |
CRC | Number of CRC error packets received by the interface. |
Giants | Number of jumbo frames with correct Frame Check Sequence [FCS] received by the interface. |
Jabbers | Number of jumbo frames with incorrect FCS received by the interface, including alignment errors [the number of bytes that a packet contains is not an integer]. |
Throttles | Number of undersized frames with incorrect FCS received by the interface. Undersized frames are the frames that are shorter than 64 bytes and have the correct format and valid CRC field. |
Runts | Number of undersized frames with correct FCS received by the interface. Undersized frames are the frames that are shorter than 64 bytes and have the correct format and valid CRC field. |
Alignments | Number of received frames with alignment errors. |
Symbols | Number of received frames with coding errors. |
Ignoreds | Number of received MAC control frames with OpCode not being PAUSE. |
Frames | Number of packets with incorrect 802.3 length. |
Collisions | Number of frames that the interface stops sending when conflicts are detected during transmission. |
ExcessiveCollisions | Number of frames that experience more than 16 consecutive conflict events and fail to be sent. |
Late Collisions | Number of frames that experience conflict events and are delayed. The first 512 bits of these frames have been sent but these frames are delay because conflicts are detected. |
Deferreds | Number of packets delayed because conflicts are detected before transmission. |
Input bandwidth utilization threshold | Threshold for inbound bandwidth usage. |
Output bandwidth utilization threshold | Threshold for outbound bandwidth usage. |
Input bandwidth utilization | Inbound bandwidth usage. |
Output bandwidth utilization | Outbound bandwidth usage. |