SR66路由器cpu占用超高，cpu进程占用如下，其中 scmd和dpfwd是什么进程？
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问题描述：
[SR6608]monitor thread dumbtty slot 1 cpu 0
120 processes; 147 threads Thread states: 2 running, 145 sleeping, 0 stopped, 0 zombie
CPU0 states: 95.48% idle, 0.90% user, 1.81% kernel, 1.81% interrupt
CPU1 states: 94.51% idle, 0.91% user, 1.83% kernel, 2.75% interrupt
Memory: 2003M total, 1634M available, page size 4K
JID TID LAST_CPU PRI State HH:MM:SS MAX CPU Name
1 1 1 120 R 00:03:19 99 3.27% scmd
[SR6608]monitor thread dumbtty slot 2 cpu 0
339 processes; 354 threads
Thread states: 9 running, 345 sleeping, 0 stopped, 0 zombie
CPU0 states: 2.50% idle, 6.25% user, 83.75% kernel, 7.50% interrupt
CPU1 states: 0.00% idle, 0.00% user, 100.00% kernel, 0.00% interrupt
CPU2 states: 99.59% idle, 0.00% user, 0.41% kernel, 0.00% interrupt
CPU3 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU4 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU5 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU6 states: 26.36% idle, 0.00% user, 73.64% kernel, 0.00% interrupt
CPU7 states: 0.42% idle, 0.00% user, 55.83% kernel, 43.75% interrupt
CPU8 states: 0.01% idle, 0.00% user, 73.22% kernel, 26.77% interrupt
CPU9 states: 0.00% idle, 0.00% user, 76.25% kernel, 23.75% interrupt
CPU10 states: 0.00% idle, 0.00% user, 78.75% kernel, 21.25% interrupt
CPU11 states: 0.01% idle, 0.00% user, 80.75% kernel, 19.24% interrupt
CPU12 states: 0.01% idle, 0.00% user, 81.32% kernel, 18.67% interrupt
CPU13 states: 0.01% idle, 0.00% user, 79.58% kernel, 20.41% interrupt
CPU14 states: 0.01% idle, 0.00% user, 82.00% kernel, 17.99% interrupt
CPU15 states: 0.01% idle, 0.00% user, 98.74% kernel, 1.25% interrupt
CPU16 states: 0.42% idle, 0.00% user, 99.58% kernel, 0.00% interrupt
CPU17 states: 2.50% idle, 0.00% user, 97.50% kernel, 0.00% interrupt
CPU18 states: 8.34% idle, 0.00% user, 91.66% kernel, 0.00% interrupt
CPU19 states: 25.42% idle, 0.00% user, 74.58% kernel, 0.00% interrupt
CPU20 states: 58.34% idle, 0.00% user, 41.66% kernel, 0.00% interrupt
CPU21 states: 70.42% idle, 0.00% user, 29.58% kernel, 0.00% interrupt
CPU22 states: 85.42% idle, 0.00% user, 14.58% kernel, 0.00% interrupt
CPU23 states: 99.59% idle, 0.00% user, 0.41% kernel, 0.00% interrupt
CPU24 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU25 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU26 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU27 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU28 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU29 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU30 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
CPU31 states: 100.00% idle, 0.00% user, 0.00% kernel, 0.00% interrupt
Memory: 3958M total, 2366M available, page size 4K
JID TID LAST_CPU PRI State HH:MM:SS MAX CPU Name
308 308 1 115 R 24845h 10 6.28% [dpfwd1]
318 318 10 115 D 6014h 3 1.61% [dpfwd10]
322 322 14 115 R 6082h 3 1.57% [dpfwd14]
317 317 9 115 D 5895h 2 1.53% [dpfwd9]
319 319 11 115 D 5801h 2 1.53% [dpfwd11]
320 320 12 115 D 5827h 2 1.53% [dpfwd12]
321 321 13 115 D 5992h 3 1.53% [dpfwd13]
316 316 8 115 D 5698h 2 1.49% [dpfwd8]
324 324 16 115 D 5841h 2 1.49% [dpfwd16]
325 325 17 115 R 5967h 3 1.49% [dpfwd17]
323 323 15 115 D 5897h 3 1.46% [dpfwd15]
326 326 18 115 D 6031h 3 1.46% [dpfwd18]
330 330 22 115 D 5763h 3 1.42% [dpfwd22]
314 314 6 115 D 5298h 2 1.39% [dpfwd6]
315 315 7 115 D 5224h 3 1.39% [dpfwd7]
327 327 19 115 D 5801h 3 1.39% [dpfwd19]
329 329 21 115 D 5694h 2 1.39% [dpfwd21]
334 334 26 115 R 5733h 3 1.39% [dpfwd26]
338 338 30 115 D 5723h 2 1.39% [dpfwd30]
312 312 4 115 D 4974h 2 1.35% [dpfwd4]
313 313 5 115 D 5103h 3 1.35% [dpfwd5]
328 328 20 115 R 5539h 2 1.35% [dpfwd20]
331 331 23 115 R 5595h 3 1.35% [dpfwd23]
333 333 25 115 D 5646h 2 1.35% [dpfwd25]
335 335 27 115 D 5577h 3 1.35% [dpfwd27]
337 337 29 115 D 5634h 3 1.35% [dpfwd29]
339 339 31 115 R 5561h 2 1.35% [dpfwd31]
332 332 24 115 D 5471h 2 1.32% [dpfwd24]
336 336 28 115 D 5465h 2 1.32% [dpfwd28]
354 354 0 115 S 3118h 1 0.99% [module2/1]
353 353 0 115 S 3941h 1 0.74% [module2/0]
组网及组网描述：
- 2021-04-22提问
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最佳答案
scmd 0.1% ------ 平台支撑的内部进程；dpfwd进程------------报文转发进程
从反馈信息看导致cpu较高的原因主要是dpfwd进程，怀疑有攻击。由于没有诊断信息，无法确定是哪个口的转发导致
可以任意视图下敲display counters inbound interface，看一下是那几个端口收发包比较多。Display interface x/x/x，看一下收发多的几个接口下有无错包，如果错包、广播包较多，排查一下对端状态。
可在系统视图下配置arp防攻击策略
再或者抓包看下报文组成，将攻击报文过滤掉
也可以收集诊断信息打400看看
- 2021-04-22回答
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