MSG360 提示大量广播

看看接口下流量统计，可以通过命令行执行display interface 查看

GigabitEthernet1/0/2
Current state: UP
Line protocol state: UP
IP packet frame type: Ethernet II, hardware address: 782c-292e-f513
Description: GigabitEthernet1/0/2 Interface
Bandwidth: 1000000 kbps
Loopback is not set
Media type is twisted pair, promiscuous mode set
1000Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Maximum frame length: 4000
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1
Port link-type: Access
Tagged VLANs: None
Untagged VLANs: 1
Port priority: 0
Output queue - Urgent queuing: Size/Length/Discards 0/1024/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last link flapping: 1 days 19 hours 20 minutes
Last clearing of counters: Never
Current system time:2020-07-13 16:30:29 Beijing+08:00:00
Last time when physical state changed to up:2016-01-01 08:01:23 Beijing+08:00:00
Last time when physical state changed to down:2016-01-01 08:00:02 Beijing+08:00:00
Last 300 second input: 398 packets/sec 48923 bytes/sec 0%
Last 300 second output: 1524 packets/sec 1312556 bytes/sec 1%
Input (total): 4352594 packets, 1143017126 bytes
4330801 unicasts, 2555 broadcasts, 19238 multicasts, 0 pauses
Input (normal): 4352594 packets, 1143017126 bytes
4330801 unicasts, 2555 broadcasts, 19238 multicasts, 0 pauses
Input: 0 input errors, 0 runts, 0 giants, - throttles
0 CRC, - frame, 0 overruns, 0 aborts
- ignored, - parity errors
Output (total): 9600151 packets, 8198234304 bytes
9562209 unicasts, 7255 broadcasts, 30687 multicasts, 0 pauses
Output (normal): 9600151 packets, 8198234304 bytes
9562209 unicasts, 7255 broadcasts, 30687 multicasts, 0 pauses
Output: 0 output errors, 0 underruns, - buffer failures
- aborts, 0 deferred, 0 collisions, 0 late collisions
- lost carrier, - no carrier

Dialer5
Current state: UP
Line protocol state: UP
Description: Dialer5 Interface
Bandwidth: 100000 kbps
Maximum transmission unit: 1492
Hold timer: 10 seconds, retry times: 5
Internet address: 111.198.45.13/32 (PPP-negotiated)
Link layer protocol: PPP
LCP: initial
Physical: Dialer, baudrate: 100000000 bps
Last clearing of counters: Never
Last 300 seconds input rate: 1218617 bytes/sec, 9748936 bits/sec, 864 packets/sec
Last 300 seconds output rate: 21824 bytes/sec, 174592 bits/sec, 416 packets/sec
Input: 7475093 packets, 8292822650 bytes, 0 drops
Output: 4974024 packets, 868291780 bytes, 0 drops