交换机 接口丢不丢包

看不出来，可以看接口有没有错包

【举例】

# 查看二层以太网接口GigabitEthernet1/0/1的运行状态和相关信息。

<Sysname> display interface gigabitethernet 1/0/1

GigabitEthernet1/0/1

Current state: DOWN

Line protocol state: DOWN

IP packet frame type: Ethernet II, hardware address: 000c-2963-b767

Description: GigabitEthernet1/0/1 Interface

Bandwidth: 100000 kbps

Loopback is not set

Media type is twisted pair

port hardware type is 1000_BASE_T_AN_SFP

Unknown-speed mode, unknown-duplex mode

Link speed type is autonegotiation, link duplex type is autonegotiation

Flow-control is not enabled

Maximum frame length: 9216

Allow jumbo frame to pass

Broadcast max-ratio: 100%

Multicast max-ratio: 100%

Unicast max-ratio: 100%

PVID: 1

MDI type: Automdix

Port link-type: Access

 Tagged VLANs:   None

 UnTagged VLANs: 1

Port priority: 2

Last link flapping: 6 hours 39 minutes 25 seconds

Last clearing of counters:  14:34:09 Tue 11/01/2011

Current system time:2018-08-10 14:58:27

Last time when physical state changed to up:-

Last time when physical state changed to down:2018-08-10 14:57:58

 Peak input rate: 0 bytes/sec, at 2013-07-17 22:06:19

 Peak output rate: 0 bytes/sec, at 2013-07-17 22:06:19

 Last 300 second input:  0 packets/sec 0 bytes/sec -%

 Last 300 second output:  0 packets/sec 0 bytes/sec -%

 Input (total):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Input (normal):  0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Input:  0 input errors, 0 runts, 0 giants, 0 throttles

          0 CRC, 0 frame, 0 overruns, 0 aborts

          0 ignored, 0 parity errors

 Output (total): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Output (normal): 0 packets, 0 bytes

          0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

 Output: 0 output errors, 0 underruns, 0 buffer failures

          0 aborts, 0 deferred, 0 collisions, 0 late collisions