排除Nexus 7000高CPU使用率故障
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已更新: 2023 年 6 月 9 日
文档 ID:116137
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目录
简介
本文档介绍在Cisco Nexus 7000系列平台上监控CPU使用率并排除CPU使用率过高问题的流程。
Nexus 7000平台上的CPU使用率
Nexus 7000平台是一个基于Linux的系统，具有优先调度程序，允许对所有进程的CPU资源进行公平访问。
与Cisco Catalyst 6500系列不同，它没有单独的路由处理器(RP)和交换机处理器(SP)。
- Supervisor引擎1具有双核处理器。
- Supervisor引擎2配有四核处理器。
- 管理引擎2E有两个四核处理器。
Cisco NX-OS操作系统利用先发式CPU多任务处理，因此进程可以利用空闲的CPU来更快地完成任务。
因此，history选项会报告不一定表示问题的可能的CPU峰值。但是，如果平均CPU使用率与特定网络的基准CPU使用率正常相比保持较高水平，请调查高CPU使用率。
启用默认硬件速率限制器(HWRL)和默认控制平面策略(CoPP)，以帮助保护Nexus 7000平台上的管理引擎带内接口。
命令和示例EEM脚本基于Nexus 7000版本6.1及更早版本，未来版本可能会有所更改。
用于监控进程和CPU的命令和脚本
命令
思科 CLI 分析器（仅适用于注册客户）支持某些 show 命令。要查看对 show 命令输出的分析，请使用思科 CLI 分析器。
show processes命令
使用此命令可显示有关活动进程的信息。
switch# show processes
PID State PC Start_cnt TTY Type Process
----- ----- -------- ----------- ---- ---- -------------
1 S 41520eb8 1 - O init
2 S 0 1 - O kthreadd
3 S 0 1 - O migration/0
4 S 0 1 - O ksoftirqd/0
5 S 0 1 - O watchdog/0
6 S 0 1 - O migration/1
7 S 0 1 - O ksoftirqd/1
8 S 0 1 - O watchdog/1
9 S 0 1 - O events/0
10 S 0 1 - O events/1
11 S 0 1 - O khelper
12 S 0 1 - O kblockd/0
| 字段 | 描述 |
| PID | 进程 ID |
| 状态 | 进程状态 |
| PC | 十六进制格式的当前程序计数器 |
| Start_cnt | 进程已启动或重新启动的次数 |
| TTY | 控制该进程的终端.连字符(—)通常表示守护程序不在任何特定终端上运行。 |
| Process | 进程的名称 |
| 进程状态 | 描述 |
| D | 不间断睡眠（通常是I/O） |
| R | 可运行（在运行队列中） |
| S | 睡眠 |
| T | 已跟踪或已停止 |
| Z | 已停用（僵尸）进程 |
| NR | 没有运行 |
| ER | 预期正在运行，但当前未运行 |
show system resources命令
使用此命令可显示系统相关的CPU和内存统计信息。
switch#show system resources
Load average: 1 minute: 0.36 5 minutes: 0.39 15 minutes: 0.44
Processes : 1068 total, 1 running
CPU states : 0.5% user, 5.5% kernel, 94.0% idle
Memory usage: 8245436K total, 3289920K used, 4955516K free
Current memory status: OK
| 字段 | 描述 |
| 负载 | 正在运行的进程数。平均值反映了过去1、5和15分钟的系统负载。 |
| 流程 | 系统中的进程数以及发出命令后实际运行的进程数。 |
| CPU 状态 | 用户模式、内核模式和空闲时间中的CPU使用率百分比。对于双核Supervisor，CPU平均分布在两个内核上。 |
| 内存使用情况 | 总内存、已用内存、可用内存、用于缓冲区的内存和用于缓存的内存（以千字节为单位）。缓冲区和缓存包含在已使用的内存统计信息中。 |
show processes cpu 命令
使用此命令可显示进程级别的CPU使用情况：
switch#show processes cpu | ex 0.0
PID Runtime(ms) Invoked uSecs 1Sec Process
----- ----------- -------- ----- ------ -----------
26 66399 269718 246 0.9% kide/1
2908 115550 11310 10216 2.9% platform
3223 7248 9208 787 0.9% R2D2_usd
CPU util : 1.0% user, 3.0% kernel, 96.0% idle Please note that only processes from the requested vdc are shown above
| 字段 | 描述 |
| Runtime (ms) | 进程已使用的CPU时间（毫秒） |
| Invoked | 已调用进程的次数 |
| uSecs | 每个进程调用的平均CPU时间（微秒） |
| 1秒 | 最近一秒的CPU使用率百分比 |
要查找属于特定进程ID(PID)的所有线程的CPU使用情况，请使用show process cpu detail <pid>命令，该命令在NX-OS版本6.2x中可用。
show processes cpu history命令
使用此命令可显示过去60秒、60分钟和72小时的CPU使用情况。确保检查平均CPU使用率(#)和峰值(*)。
switch# show processes cpu history
1 131 12 1 1 1 1 2 1 1 1
195388933456577607393535376775867507294877653564353456145546
100
90
80
70
60
50
40 #
30 #
20 ## ## # # #
10 ####### ######## # ################# ######## # ### ## #
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
# = average CPU%
222222224221222212222222222642222112221222222222222121221412
523210211239434396322261541608790993139620151432210949597392
100
90
80
70 *
60 *
50 *
40 * ** *
30 * * * * * ***** * * ** *
20 ************************************************************
10 ############################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
1
666765454544445544555669844465554466654464446069464554545555665544444474
459056619185613722269482096333506853055519639003005209696949867484693724
100 *
90 * * *
80 ** * *
70 **** *** * ** * ** *
60 ****** * ****** * * **** * **** * * ** **** *
50 ************* ** ********* *************** **** **************** ** **
40 ************************************************************************
30 ************************************************************************
20 ************************************************************************
10 ########################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
show process cpu detail <pid> 命令
此命令在版本6.2中添加，显示属于特定PID的所有线程的CPU使用率信息。
switch# show processes cpu sorted | grep cli
3965 23734 17872 1328 0.0% 0.1% 0.7% - clis
4024 3047 1256 2426 0.0% 0.0% 0.0% - diagclient
4094 787 258 3052 0.0% 0.0% 0.0% - cardclient
4728 227 209 1088 0.0% 0.0% 0.0% - port_client
4729 1351 499 2708 0.0% 0.0% 0.0% - statsclient
4730 2765 550 5028 0.0% 0.0% 0.0% - xbar_client
switch# show processes cpu sorted | grep clis
3965 23734 17872 1328 0.0% 0.1% 0.7% - clis
switch# show process cpu detailed 3965
CPU utilization for five seconds: 3%/3%; one minute: 0%; five minutes: 1%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
----- ----------- -------- ----- ------ ------ ------ --- -----------
3965 23734 17873 1327 0.0% 0.1% 0.6% - clis
4227 45 334 135 0.0% 0.0% 0.0% - clis:clis-cli-t
4228 24 153 162 0.0% 0.0% 0.0% - clis:clis-nvdb-
4760 75 224 335 0.0% 0.0% 0.0% - clis:clis-seria
switch# show processes cpu sorted | grep netstack
4133 353 892 395 0.0% 0.0% 0.0% - netstack
switch# show process cpu detailed 4133
CPU utilization for five seconds: 5%/5%; one minute: 1%; five minutes: 1%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
----- ----------- -------- ----- ------ ------ ------ --- -----------
4133 353 892 395 0.0% 0.0% 0.0% - netstack
4145 322 6492 49 0.0% 0.0% 0.0% - netstack:active
4151 239 247 971 0.0% 0.0% 0.0% - netstack:ip-sys
4153 0 3 162 0.0% 0.0% 0.0% - netstack:mplsda
4155 2 3 717 0.0% 0.0% 0.0% - netstack:mplsct
4163 0 2 240 0.0% 0.0% 0.0% - netstack:ipv6-d
4164 97 957 101 0.0% 0.0% 0.0% - netstack:netsta
4166 15 628 25 0.0% 0.0% 0.0% - netstack:ip-sys
4167 0 3 224 0.0% 0.0% 0.0% - netstack:ip-pm-
4170 1 12 154 0.0% 0.0% 0.0% - netstack:ip-uri
4171 9 30 323 0.0% 0.0% 0.0% - netstack:ip-ipc
4173 0 5 167 0.0% 0.0% 0.0% - netstack:ip-ipc
4175 0 2 305 0.0% 0.0% 0.0% - netstack:ip-ret
4176 12 7 1838 0.0% 0.0% 0.0% - netstack:ip-ppf
4178 4 15 289 0.0% 0.0% 0.0% - netstack:ipv6-c
4179 41 445 93 0.0% 0.0% 0.0% - netstack:disp
4180 0 6 98 0.0% 0.0% 0.0% - netstack:worker
4181 33 501 66 0.0% 0.0% 0.0% - netstack:worker
4182 0 2 232 0.0% 0.0% 0.0% - netstack:worker
4183 0 2 227 0.0% 0.0% 0.0% - netstack:worker
4184 0 3 152 0.0% 0.0% 0.0% - netstack:worker
4185 0 2 278 0.0% 0.0% 0.0% - netstack:worker
4186 0 2 254 0.0% 0.0% 0.0% - netstack:worker
4187 0 3 168 0.0% 0.0% 0.0% - netstack:worker
4188 0 2 266 0.0% 0.0% 0.0% - netstack:worker
4189 0 2 248 0.0% 0.0% 0.0% - netstack:worker
4190 0 2 254 0.0% 0.0% 0.0% - netstack:worker
4191 0 3 201 0.0% 0.0% 0.0% - netstack:worker
4192 0 2 258 0.0% 0.0% 0.0% - netstack:worker
4193 0 7 111 0.0% 0.0% 0.0% - netstack:worker
4194 0 8 78 0.0% 0.0% 0.0% - netstack:worker
4195 0 2 313 0.0% 0.0% 0.0% - netstack:worker
4196 15 632 23 0.0% 0.0% 0.0% - netstack:ptacti
4197 0 5 120 0.0% 0.0% 0.0% - netstack:tcp_ip
4198 4 11 390 0.0% 0.0% 0.0% - netstack:ipv6-m
4199 0 3 240 0.0% 0.0% 0.0% - netstack:ipv6-c
4200 0 1 561 0.0% 0.0% 0.0% - netstack:ipv6-c
4201 0 3 246 0.0% 0.0% 0.0% - netstack:icmpv6
4513 0 5 112 0.0% 0.0% 0.0% - netstack:ipv6-m
4514 0 2 291 0.0% 0.0% 0.0% - netstack:ipv6-m
注：所有流程信息均基于NX-OS中的“proc”。在NX-OS中，所有线程共享由任何其他线程分配的内存，因此不可能按线程显示信息。
show system internal processes cpu命令
此命令相当于Linux中的top命令，它可以实时查看处理器活动。
switch# show system internal processes cpu
top - 23:51:41 up 51 min, 3 users, load average: 0.56, 0.49, 0.46
Tasks: 433 total, 1 running, 431 sleeping, 0 stopped, 1 zombie
Cpu(s): 5.9%us, 7.8%sy, 0.0%ni, 81.9%id, 3.6%wa, 0.1%hi, 0.6%si, 0.0%st
Mem: 8245436k total, 3531776k used, 4713660k free, 5360k buffers
Swap: 0k total, 0k used, 0k free, 1458188k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3589 svc-isan 25 5 112m 8864 4572 S 5.7 0.1 0:21.60 stats_client
10881 sjlan 20 0 3732 1648 1140 R 3.8 0.0 0:00.04 top
26 root 20 0 0 0 0 S 1.9 0.0 1:07.07 kide/1
3280 root -2 0 101m 6104 3680 S 1.9 0.1 0:32.57 octopus
3570 root 20 0 123m 19m 6456 S 1.9 0.2 0:06.07 diag_port_lb
5151 root 20 0 205m 45m 9.8m S 1.9 0.6 0:02.61 netstack
1 root 20 0 1988 604 524 S 0.0 0.0 0:03.75 init
2 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0
4 root 15 -5 0 0 0 S 0.0 0.0 0:00.61 ksoftirqd/0
5 root -2 -5 0 0 0 S 0.0 0.0 0:00.06 watchdog/0
6 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/1
7 root 15 -5 0 0 0 S 0.0 0.0 0:04.80 ksoftirqd/1
| 字段 | 描述 |
| PID | 进程 ID |
| 用户 | 拥有进程的用户的名称 |
| 公关 | 分配给进程的优先级 |
| NI | 流程的出色价值 |
| VIRT | 进程使用的虚拟内存量 |
| RES | 进程使用的物理RAM大小（驻留大小）（千字节） |
| SHR | 进程使用的共享内存量 |
| S | 进程的状态。可能的值包括：
|
| %CPU | 进程使用的CPU时间百分比 |
| %MEM | 进程使用的可用物理RAM的百分比 |
| 时间+ | 进程自启动以来已消耗的CPU时间总量 |
| 命令 | 为启动进程而输入的命令的名称 |
“{#seconds} | no-more”选项允许每天自动执行命令#seconds直到输入Ctrl-C为止。这是输出示例: ：
switch# show system internal processes cpu 5 | no-more
top - 17:31:12 up 4 days, 18:31, 3 users, load average: 0.52, 0.40, 0.32
Tasks: 449 total, 3 running, 446 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.5%us, 4.5%sy, 0.0%ni, 91.2%id, 0.1%wa, 0.1%hi, 0.5%si, 0.0%st
Mem: 8245436k total, 4192740k used, 4052696k free, 27644k buffers
Swap: 0k total, 0k used, 0k free, 1919612k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2908 root 20 0 112m 8516 5516 S 7.5 0.1 264:44.25 pfm
31487 sjlan 20 0 3732 1652 1140 R 5.6 0.0 0:00.05 top
3059 svc-isan 20 0 80288 7536 4440 S 3.8 0.1 65:44.59 diagmgr
3192 root 20 0 334m 47m 11m S 1.9 0.6 25:36.52 netstack
3578 svc-isan 20 0 118m 13m 6952 S 1.9 0.2 24:57.36 stp
5119 svc-isan 20 0 139m 14m 7028 S 1.9 0.2 3:48.60 urib
5151 root 20 0 209m 46m 11m S 1.9 0.6 38:53.39 netstack
5402 svc-isan 20 0 117m 15m 9140 S 1.9 0.2 36:07.13 stp
6175 svc-isan 20 0 118m 16m 9580 S 1.9 0.2 47:09.41 stp
1 root 20 0 1988 604 524 S 0.0 0.0 0:06.51 init
2 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.08 migration/0
4 root 15 -5 0 0 0 S 0.0 0.0 1:07.77 ksoftirqd/0
top - 17:31:18 up 4 days, 18:31, 3 users, load average: 0.48, 0.39, 0.32
Tasks: 449 total, 1 running, 448 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.5%us, 4.5%sy, 0.0%ni, 91.2%id, 0.1%wa, 0.1%hi, 0.5%si, 0.0%st
Mem: 8245436k total, 4192592k used, 4052844k free, 27644k buffers
Swap: 0k total, 0k used, 0k free, 1919612k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2908 root 20 0 112m 8516 5516 S 7.5 0.1 264:44.47 pfm
31490 sjlan 20 0 3732 1656 1140 R 3.8 0.0 0:00.04 top
1 root 20 0 1988 604 524 S 0.0 0.0 0:06.51 init
2 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.08 migration/0
4 root 15 -5 0 0 0 S 0.0 0.0 1:07.77 ksoftirqd/0
5 root -2 -5 0 0 0 S 0.0 0.0 0:13.74 watchdog/0
6 root RT -5 0 0 0 S 0.0 0.0 0:00.10 migration/1
7 root 15 -5 0 0 0 S 0.0 0.0 0:54.47 ksoftirqd/1
8 root -2 -5 0 0 0 S 0.0 0.0 0:00.20 watchdog/1
9 root 15 -5 0 0 0 S 0.0 0.0 0:02.94 events/0
10 root 15 -5 0 0 0 S 0.0 0.0 0:02.58 events/1
11 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
top - 17:31:23 up 4 days, 18:31, 3 users, load average: 0.44, 0.39, 0.32
Tasks: 449 total, 1 running, 448 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.5%us, 4.5%sy, 0.0%ni, 91.2%id, 0.1%wa, 0.1%hi, 0.5%si, 0.0%st
Mem: 8245436k total, 4192584k used, 4052852k free, 27644k buffers
Swap: 0k total, 0k used, 0k free, 1919612k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
31493 sjlan 20 0 3732 1656 1140 R 3.8 0.0 0:00.04 top
5004 svc-isan 20 0 118m 13m 6852 S 1.9 0.2 41:35.81 stp
10337 svc-isan 20 0 133m 11m 7948 S 1.9 0.1 1:42.81 mcecm
1 root 20 0 1988 604 524 S 0.0 0.0 0:06.51 init
2 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.08 migration/0
4 root 15 -5 0 0 0 S 0.0 0.0 1:07.77 ksoftirqd/0
5 root -2 -5 0 0 0 S 0.0 0.0 0:13.74 watchdog/0
6 root RT -5 0 0 0 S 0.0 0.0 0:00.10 migration/1
7 root 15 -5 0 0 0 S 0.0 0.0 0:54.47 ksoftirqd/1
8 root -2 -5 0 0 0 S 0.0 0.0 0:00.20 watchdog/1
9 root 15 -5 0 0 0 S 0.0 0.0 0:02.94 events/0
10 root 15 -5 0 0 0 S 0.0 0.0 0:02.58 events/1
top - 17:31:29 up 4 days, 18:31, 3 users, load average: 0.41, 0.38, 0.32
Tasks: 449 total, 1 running, 448 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.5%us, 4.5%sy, 0.0%ni, 91.2%id, 0.1%wa, 0.1%hi, 0.5%si, 0.0%st
Mem: 8245436k total, 4192708k used, 4052728k free, 27644k buffers
Swap: 0k total, 0k used, 0k free, 1919616k cached
show system internal sysmgr service pid <pid>命令
使用此命令可以按PID显示有关进程/服务的其他详细信息，例如重新启动时间、崩溃状态和当前状态。
switch# show system internal processes cpu
top - 17:37:26 up 4 days, 18:37, 3 users, load average: 0.16, 0.35, 0.33
Tasks: 450 total, 2 running, 448 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.5%us, 4.5%sy, 0.0%ni, 91.2%id, 0.1%wa, 0.1%hi, 0.5%si, 0.0%st
Mem: 8245436k total, 4193248k used, 4052188k free, 27668k buffers
Swap: 0k total, 0k used, 0k free, 1919664k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2908 root 20 0 112m 8516 5516 S 7.5 0.1 264:58.67 pfm
31710 sjlan 20 0 3732 1656 1140 R 3.8 0.0 0:00.04 top
3192 root 20 0 334m 47m 11m S 1.9 0.6 25:38.39 netstack
3578 svc-isan 20 0 118m 13m 6952 S 1.9 0.2 24:59.08 stp
5151 root 20 0 209m 46m 11m S 1.9 0.6 38:55.52 netstack
5402 svc-isan 20 0 117m 15m 9140 S 1.9 0.2 36:09.08 stp
5751 root 20 0 209m 46m 10m S 1.9 0.6 41:20.58 netstack
6098 svc-isan 20 0 151m 15m 6188 S 1.9 0.2 3:58.40 mrib
6175 svc-isan 20 0 118m 16m 9580 S 1.9 0.2 47:12.00 stp
1 root 20 0 1988 604 524 S 0.0 0.0 0:06.52 init
2 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.08 migration/0
4 root 15 -5 0 0 0 S 0.0 0.0 1:07.83 ksoftirqd/0
switch# show system internal sysmgr service pid 2908
Service "Platform Manager" ("platform", 5):
UUID = 0x18, PID = 2908, SAP = 39
State: SRV_STATE_HANDSHAKED (entered at time Mon Oct 15 23:03:45 2012).
Restart count: 1
Time of last restart: Mon Oct 15 23:03:44 2012.
The service never crashed since the last reboot.
Tag = N/A
Plugin ID: 0
示例EEM脚本
这是一个捕获间歇性高CPU使用率的示例脚本。使用的值以及发出的命令可以根据要求进行修改：
event manager applet HIGH-CPU
event snmp oid 1.3.6.1.4.1.9.9.109.1.1.1.1.6.1 get-type exact entry-op ge
entry-val 80 exit-val 30 poll-interval 5
action 1.0 syslog msg High CPU hit $_event_pub_time
action 2.0 cli enable
action 3.0 cli show clock >> bootflash:high-cpu.txt
action 4.0 cli show processes cpu sort >> bootflash:high-cpu.txt
注：必须定义“exit-val”。 当脚本收集数据时，会增加CPU利用率。exit-val的值可确保脚本不会在无限循环中运行。
高CPU使用率由 进程或流量
当监控CPU使用率时，没有进程与中断CPU使用(如在Cisco IOS®软件平台上)。要快速确定CPU使用率高的原因，请使用show system internal processes cpu命令。流量触发的高CPU使用率很可能导致Netstack以及其他功能和进程（如地址解析协议[ARP]和互联网组管理协议[IGMP]）运行过高。
进程导致CPU使用率较高
根据导致高CPU使用率的进程和问题，可能需要捕获特定命令。以下各节介绍有用的方法。
show system internal <feature> mem-stats/memstats | 在宏命令中
使用此命令可显示某个进程的内存分配；使用“in Grand”选项可监控总内存。内存泄漏可能会导致进程出现异常，从而导致CPU使用率较高。
Ethanalyzer
使用Ethanalyzer监控到CPU的流量。
调试命令
注意：使用debug命令之前，请参阅有关Debug命令的重要信息。在生产交换机上明智地使用debug命令以避免服务中断。
尽可能使用debug logfile命令将输出定向到指定文件，并避免锁定会话以填充系统日志。以下是debug Simple Network Management Protocol(SNMP)的示例：
switch# debug logfile snmpdebug
switch# debug snmp all
switch# show debug logfile snmpdebug
2012 Oct 17 23:53:25.905914 snmpd: SDWRAP message Successfully processed
2012 Oct 17 23:53:25.906162 snmpd: Src: 0x00000501/23852 Dst: 0x00000501/28 ID
: 0x006E3C9B Size: 276 [REQ] Opc: 182 (MTS_OPC_DEBUG_WRAP_MSG) RR: 0x006E3C9B
HA_SEQNO: 0x00000000 TS: 0x10ADFFA1666FC REJ:0 SYNC:0 OPTIONS:0x0
2012 Oct 17 23:53:25.906208 snmpd: 01 00 00 00 E7 03 00 00 00 00 00 00 00 00 00 00
2012 Oct 17 23:53:25.906225 snmpd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2012 Oct 17 23:53:25.906239 snmpd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2012 Oct 17 23:53:25.906255 snmpd: FF FF FF FF 2F 64 65 76 2F 70 74 73 2F 30 00 00
2012 Oct 17 23:53:25.906271 snmpd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
switch# show log last 10 2012 Oct 17 17:51:06 SITE1-AGG1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet10/10, operational Transmit Flow Control state changed to off 2012 Oct 17 17:51:09 SITE1-AGG1 %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet10/10: Ethernet10/10 is suspended 2012 Oct 17 17:51:51 SITE1-AGG1 last message repeated 1 time 2012 Oct 17 17:51:51 SITE1-AGG1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet10/10 is down (Link failure) 2012 Oct 17 17:51:52 SITE1-AGG1 %ETHPORT-5-SPEED: Interface Ethernet10/10, operational speed changed to 10 Gbps 2012 Oct 17 17:51:52 SITE1-AGG1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet10/10, operational duplex mode changed to Full 2012 Oct 17 17:51:52 SITE1-AGG1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet10/10, operational Receive Flow Control state changed to off 2012 Oct 17 17:51:52 SITE1-AGG1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet10/10, operational Transmit Flow Control state changed to off 2012 Oct 17 17:51:55 SITE1-AGG1 %ETH_PORT_CHANNEL-5-PORT_UP: port-channel11: Ethernet10/10 is up 2012 Oct 17 17:51:56 SITE1-AGG1 %ETHPORT-5-IF_UP: Interface Ethernet10/10 is up in mode trunk
尽可能使用debug-filter命令以最小化生产系统上的输出。例如，数据包丢失会导致单向链路检测(UDLD)空回声：
switch# debug logfile test size 1000000
switch# debug-filter pktmgr direction inbound
switch# debug-filter pktmgr dest-mac 0100.0ccc.cccc
switch# debug pktmgr client uuid 376
switch# debug pktmgr frame
switch# debug pktmgr pkt-errors
switch# debug-filter ?
fabricpath Debug fabricpath events
ip IP events
ipv6 IPv6 events
l2pt L2 Protocol Tunneling events
mpls MPLS events
pktmgr Pm debug-filter
routing Routing events
流量导致CPU使用率较高
当流量导致CPU使用率较高时，请使用以下工具：
- Ethanalyzer — 监控流向CPU或流向CPU的流量类型。
- Configuration — 检查交换机/接口/功能配置
- CoPP/硬件速率限制器 — 确保CoPP和HWRL配置正确。有时CPU不会运行很高，因为它受到CoPP和速率限制器的保护。检查CoPP和HWRL，查看某些流量/数据包是否存在丢弃。
注意：CoPP和HWRL都只能从默认虚拟设备环境(VDC)中提供。它们由每个单独的I/O模块实施。来自多个模块的聚合流量仍然会对CPU造成沉重负担。
高CPU使用率的根本原因分析
网络中断可以通过用户干预解决，也可以自行恢复。如果您怀疑CPU使用率过高导致了网络故障，请使用以下指南调查原因。
症状
高CPU使用率症状包括控制平面不稳定、控制平面故障导致的数据平面连接问题、热备份路由器协议(HSRP)/RP抖动等协议抖动、禁用UDLD错误、生成树协议(STP)故障以及其他连接问题。
CPU历史记录
show processes cpu history命令
如果交换机未重新加载或切换，请在中断后72小时内运行show processes cpu history命令，以查看事件发生时是否出现了高CPU使用率。
CoPP和HWRL
如果CPU使用率高是过去中断的根本原因，并且您怀疑此中断是由网络流量触发的，您可以使用CoPP和HWRL（硬件速率限制器）来帮助识别流量的类型。
show policy-map interface control-plane命令
以下是show policy-map interface control-plane命令的输出示例：
switch# show policy-map interface control-plane
Control Plane
service-policy input: copp-system-p-policy-strict
class-map copp-system-p-class-critical (match-any)
match access-group name copp-system-p-acl-bgp
match access-group name copp-system-p-acl-bgp6
match access-group name copp-system-p-acl-igmp
match access-group name copp-system-p-acl-msdp
match access-group name copp-system-p-acl-ospf
match access-group name copp-system-p-acl-pim
match access-group name copp-system-p-acl-pim6
match access-group name copp-system-p-acl-rip
match access-group name copp-system-p-acl-rip6
match access-group name copp-system-p-acl-vpc
match access-group name copp-system-p-acl-eigrp
match access-group name copp-system-p-acl-eigrp6
match access-group name copp-system-p-acl-mac-l2pt
match access-group name copp-system-p-acl-mpls-ldp
match access-group name copp-system-p-acl-mpls-oam
match access-group name copp-system-p-acl-ospf6
match access-group name copp-system-p-acl-otv-as
match access-group name copp-system-p-acl-mac-otv-isis
match access-group name copp-system-p-acl-mpls-rsvp
match access-group name copp-system-p-acl-mac-fabricpath-isis
match protocol mpls router-alert
match protocol mpls exp 6
set cos 7
police cir 39600 kbps , bc 250 ms
module 1 :
conformed 1108497274 bytes; action: transmit
violated 0 bytes; action: drop
module 3 :
conformed 0 bytes; action: transmit
violated 0 bytes; action: drop
module 10 :
conformed 0 bytes; action: transmit
.
.
.
show hardware rate-limiter mod <x>命令
以下是show hardware rate-limiter mod 1命令早于NX-OS版本6.1的示例输出：
switch# show hardware rate-limiter mod 1
Units for Config: packets per second
Allowed, Dropped & Total: aggregated since last clear counters
Rate Limiter Class Parameters
------------------------------------------------------------
layer-3 mtu Config : 500
Allowed : 0
Dropped : 0
Total : 0
layer-3 ttl Config : 500
Allowed : 0
Dropped : 0
Total : 0
layer-3 control Config : 10000
Allowed : 0
Dropped : 0
.
.
.
以下是show hardware rate-limiter mod 1命令在NX-OS版本6.1或更高版本中的输出示例：
switch# show hardware rate-limiter mod 1
switch# show hardware rate-limiter module 1
Units for Config: packets per second
Allowed, Dropped & Total: aggregated since last clear counters
Module: 1
R-L Class Config Allowed Dropped Total
+------------------+--------+---------------+---------------+-----------------+
L3 mtu 500 0 0 0
L3 ttl 500 0 0 0
L3 control 10000 0 0 0
L3 glean 100 0 0 0
L3 mcast dirconn 3000 0 0 0
L3 mcast loc-grp 3000 0 0 0
L3 mcast rpf-leak 500 0 0 0
L2 storm-ctrl Disable
access-list-log 100 0 0 0
copy 30000 0 0 0
receive 30000 40583 0 40583
L2 port-sec 500 20435006 0 20435006
L2 mcast-snoop 10000 0 0 0
L2 vpc-low 4000 0 0 0
L2 l2pt 500 0 0 0
f1 rl-1 4500 0
f1 rl-2 1000 0
f1 rl-3 1000 0
f1 rl-4 100 0
f1 rl-5 1500 0
L2 vpc-peer-gw 5000 0 0 0
L2 lisp-map-cache 5000 0 0 0
查找丢弃计数递增的任何类。找出超出所配置阈值的类是否正常。
带内驱动程序
show hardware internal cpu-mac inband [counters | 统计信息 | events]命令
使用此命令检查CPU路径中的丢弃、XOFF流量控制、最大CPU接收和传输速率等。
switch# show hardware internal cpu-mac inband stats
i82571 registers
=======================================================
RMON counters Rx Tx
----------------------+--------------------+--------------------
total packets 70563313 139905960
good packets 70563313 139905960
64 bytes packets 0 0
65-127 bytes packets 66052368 135828505
128-255 bytes packets 1424632 1327796
256-511 bytes packets 280422 325220
512-1023 bytes packets 17060 14480
1024-max bytes packets 2788831 2409959
broadcast packets 0 0
multicast packets 0 0
good octets (hi) 0 0
good octets (low) 18573099828 25929913975
total octets (hi) 0 0
total octets (low) 18573090123 25929922452
XON packets 0 0
XOFF packets 0 0
-------------> Pause Frame back to R2D2 when the traffic exceeds SUP limit
management packets 0 0
Interrupt counters
-------------------+--
Mine 57079706
Other 0
Assertions 57079706
Rx packet timer 9638
Rx absolute timer 0
Rx overrun 0
Rx descr min thresh 0
Tx packet timer 4189
Tx absolute timer 6476
Tx queue empty 0
Tx descr thresh low 0
txdw ..... 44983549
txqe ..... 2
lsc ...... 0
rxseq .... 0
rxdmt .... 213229
rxo ...... 0
rxt ...... 32433891
mdac ..... 0
rxcfg .... 0
gpi ...... 0
Error counters
--------------------------------+--
CRC errors ..................... 0
Alignment errors ............... 0
Symbol errors .................. 0
Sequence errors ................ 0
RX errors ...................... 0
Missed packets (FIFO overflow) 0
Single collisions .............. 0
Excessive collisions ........... 0
Multiple collisions ............ 0
Late collisions ................ 0
Collisions ..................... 0
Defers ......................... 0
Tx no CRS ..................... 0
Carrier extension errors ....... 0
Rx length errors ............... 0
FC Rx unsupported .............. 0
Rx no buffers .................. 0 ----------------- no buffer
Rx undersize ................... 0
Rx fragments ................... 0
Rx oversize .................... 0
Rx jabbers ..................... 0
Rx management packets dropped .. 0
Tx TCP segmentation context .... 0
Tx TCP segmentation context fail 0
Throttle statistics
-----------------------------+---------
Throttle interval ........... 2 * 100ms
Packet rate limit ........... 32000 pps
Rate limit reached counter .. 0
Tick counter ................ 2132276
Active ...................... 0
Rx packet rate (current/max) 169 / 610 pps ----------------- Rx rate (current/max)
Tx packet rate (current/max) 429 / 926 pps
NAPI statistics
----------------+---------
Weight ......... 64
Poll scheduled . 57079706
Poll rescheduled 0
Poll invoked ... 117135124
Weight reached . 9
Tx packets ..... 139905960
Rx packets ..... 70563313
Rx congested ... 0
Rx redelivered . 0
qdisc stats:
----------------+---------
Tx queue depth . 1000
qlen ........... 0
packets ........ 139905960
bytes .......... 23411617016
drops .......... 0
Bahrain registers (cleared by chip reset only)
=======================================================
revision 0x00000108
scratchpad 0xaaaaaaaa
MAC status 0x00000001
MAC SerDes synced 0x00000001
MAC status 2 0x000100f8
Auto-XOFF config 1
Auto-XOFF status 0
MAC counters MAC0 (R2D2) MAC1 (CPU)
----------------------+---------------------+---------------------
Rx Tx Rx Tx
----------------------+----------+----------+----------+----------
64 bytes packets 0 0 0 0
65-127 bytes packets 66907289 136682635 135828505 66052368
128-255 bytes packets 570131 473705 1327796 1424632
256-511 bytes packets 280003 325182 325220 280422
512-1023 bytes packets 17061 14482 14480 17060
1024-1518 bytes packets 623614 242009 241831 623569
1519-max bytes packets 2165215 2167947 2168128 2165262
----------------------+----------+----------+----------+----------
total packets 70563313 139905960 139905960 70563313
total bytes 405350248 2496404376 160120520 1393236630
----------------------+----------+----------+----------+----------
undersized packets 0 0
fragmented packets 0 0
FCS errors 0 0
----------------------+----------+----------+----------+----------
auto-XOFF state entered 0 times
auto-XOFF reset 0 times
XOFF packets auto-generated 0
XOFF packets 0 0
XON packets 0 0
----------------------+----------+----------+----------+----------
parity error 0 0 0 0
fifo errors 0 0
overflow errors 0 0
----------------------+----------+----------+----------+----------
在NX-OS版本5.X之后，“events”是一个命令选项，提供达到每秒最大数据包(PPS)接收(RX)或传输(TX)CPU速率的时间。此示例显示如何确定遇到CPU流量最后一个峰值时的时间：
switch# show hardware internal cpu-mac inband events
1) Event:TX_PPS_MAX, length:4, at 648617 usecs after Fri Oct 19 13:23:06 2012
new maximum = 926
2) Event:TX_PPS_MAX, length:4, at 648622 usecs after Fri Oct 19 13:15:06 2012
new maximum = 916
3) Event:TX_PPS_MAX, length:4, at 648612 usecs after Fri Oct 19 13:14:06 2012
new maximum = 915
4) Event:TX_PPS_MAX, length:4, at 648625 usecs after Fri Oct 19 13:12:06 2012
new maximum = 914
5) Event:TX_PPS_MAX, length:4, at 648626 usecs after Fri Oct 19 13:11:06 2012
new maximum = 911
6) Event:TX_PPS_MAX, length:4, at 648620 usecs after Fri Oct 19 13:08:06 2012
new maximum = 910
show system internal pktmgr internal vdc inband <int>命令
使用此命令可确定传送到CPU的流量的来源。
switch# show system internal pktmgr internal vdc inband e1/5
Interface Src Index VDC ID Packet rcvd
--------------------------------------------------------
Ethernet1/5 0xa1d 1 14640
Netstack/Pktmgr
Netstack是在Nexus 7000的用户空间中实施的完整IP堆栈。组件包括L2数据包管理器、ARP、邻接管理器、IPv4、互联网控制消息协议v4(ICMPv4)、IPv6、ICMPv6、TCP/UDP和套接字库。当流向CPU的流量触发CPU使用率较高时，您经常会看到Netstack及其相应进程运行较高。
show system inband queuing status命令
此示例显示如何显示正在使用的Netstack排队算法：
switch# show system inband queuing status
Weighted Round Robin Algorithm
Weights BPDU - 32, Q0 - 8, Q1 - 4, Q2 - 2 Q3 - 64
show system inband queuing statistics命令
此示例显示内核可加载模块(KLM)和用户空间进程中的计数器。
KLM是在默认VDC上运行并在带内和管理接口上运行的单个实例。KLM仅在将入口帧发送到正确的VDC Netstack进行处理的入口数据包处理期间进入图片。
switch# show system inband queuing statistics
Inband packets unmapped to a queue: 0
Inband packets mapped to bpdu queue: 7732593
Inband packets mapped to q0: 686667
Inband packets mapped to q1: 0
Inband packets mapped to q2: 0
Inband packets mapped to q3: 20128
In KLM packets mapped to bpdu: 7732593
In KLM packets mapped to arp : 912
In KLM packets mapped to q0 : 686667
In KLM packets mapped to q1 : 0
In KLM packets mapped to q2 : 0
In KLM packets mapped to q3 : 20128
In KLM packets mapped to veobc : 0
Inband Queues:
bpdu: recv 1554390, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 1
(q0): recv 686667, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q1): recv 0, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q2): recv 0, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q3): recv 20128, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
show system internal pktmgr internal vdc global-stats命令
此命令与前面的show system inband queuing statistics命令类似，并提供许多详细信息：
switch# show system internal pktmgr internal vdc global-stats
VDC KLM global statistics:
Inband packets not mapped to a VDC: 0
Inband diag packets received: 998222
Weighted Round Robin Algorithm
Weights BPDU - 32, Q0 - 8, Q1 - 4, Q2 - 2 Q3 - 64
Inband packets unmapped to a queue: 0
Inband packets mapped to bpdu queue: 7734430 (7734430)
Inband packets mapped to q0: 686779 (686779)
Inband packets mapped to q1: 0 (0)
Inband packets mapped to q2: 0 (0)
Inband packets mapped to q3: 20128 (20128)
Pkt Size History : 2811395 for index 1
Pkt Size History : 274508 for index 2
Pkt Size History : 74284 for index 3
Pkt Size History : 43401 for index 4
Pkt Size History : 70915 for index 5
Pkt Size History : 35602 for index 6
Pkt Size History : 30085 for index 7
Pkt Size History : 29408 for index 8
Pkt Size History : 21221 for index 9
Pkt Size History : 15683 for index 10
Pkt Size History : 13212 for index 11
Pkt Size History : 10646 for index 12
Pkt Size History : 9290 for index 13
Pkt Size History : 50298 for index 14
Pkt Size History : 5473 for index 15
Pkt Size History : 4871 for index 16
Pkt Size History : 4687 for index 17
Pkt Size History : 5507 for index 18
Pkt Size History : 15416 for index 19
Pkt Size History : 11333 for index 20
Pkt Size History : 5478 for index 21
Pkt Size History : 4281 for index 22
Pkt Size History : 3543 for index 23
Pkt Size History : 3059 for index 24
Pkt Size History : 2228 for index 25
Pkt Size History : 4390 for index 26
Pkt Size History : 19892 for index 27
Pkt Size History : 524 for index 28
Pkt Size History : 478 for index 29
Pkt Size History : 348 for index 30
Pkt Size History : 447 for index 31
Pkt Size History : 1545 for index 32
Pkt Size History : 152 for index 33
Pkt Size History : 105 for index 34
Pkt Size History : 1424 for index 35
Pkt Size History : 43 for index 36
Pkt Size History : 60 for index 37
Pkt Size History : 60 for index 38
Pkt Size History : 46 for index 39
Pkt Size History : 58 for index 40
Pkt Size History : 829 for index 41
Pkt Size History : 32 for index 42
Pkt Size History : 26 for index 43
Pkt Size History : 1965 for index 44
Pkt Size History : 21 for index 45
Pkt Size History : 1 for index 46
Pkt Size History : 1 for index 48
Pkt Size History : 1 for index 51
Pkt Size History : 1 for index 52
Pkt Size History : 1 for index 53
Pkt Size History : 3 for index 55
In KLM packets mapped to bpdu: 7734430
In KLM packets mapped to arp : 912
In KLM packets mapped to q0 : 686779
In KLM packets mapped to q1 : 0
In KLM packets mapped to q2 : 0
In KLM packets mapped to q3 : 20128
In KLM packets mapped to veobc : 0
In KLM Queue Mapping (0 1 2 3 4)
Data Available in FDs (0 0 0 0 0)
Inband Queues:
bpdu: recv 1556227, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 1
(q0): recv 686779, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q1): recv 0, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q2): recv 0, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
(q3): recv 20128, drop 0, congested 0 rcvbuf 2097152, sndbuf 262142 no drop 0
Mgmt packets not mapped to a VDC: 227551
Mgmt multicast packets dropped: 92365
Mgmt multicast packets delivered: 0
Mgmt packets broadcast to each VDC: 23119
Mgmt debugging packets copied: 0
Mgmt IPv6 multicast packets delivered: 0
Mgmt IPv6 link-local packets delivered: 0
Mgmt LLDP packets received: 0
show system internal pktmgr interface ethernet <int>命令
使用此命令可查看来自接口的CPU传出的流量的数据包速率以及流量类型（单播或组播）。
switch# show system internal pktmgr interface e1/5
Ethernet1/5, ordinal: 73
SUP-traffic statistics: (sent/received)
Packets: 63503 / 61491
Bytes: 6571717 / 5840641
Instant packet rate: 0 pps / 0 pps
Packet rate limiter (Out/In): 0 pps / 0 pps
Average packet rates(1min/5min/15min/EWMA):
Packet statistics:
Tx: Unicast 3198, Multicast 60302
Broadcast 3
Rx: Unicast 3195, Multicast 58294
Broadcast 2
show system internal pktmgr client <uuid>命令
此命令显示向Packet Manager注册的应用（例如STP或思科发现协议[CDP]）以及这些应用发送和接收的数据包数量。
switch# show system internal pktmgr client
Client uuid: 268, 4 filters, pid 3127
Filter 1: EthType 0x0806,
Rx: 2650, Drop: 0
Filter 2: EthType 0xfff0, Exc 8,
Rx: 0, Drop: 0
Filter 3: EthType 0x8841, Snap 34881,
Rx: 0, Drop: 0
Filter 4: EthType 0x0800, DstIf 0x150b0000, Excl. Any
Rx: 0, Drop: 0
Options: TO 0, Flags 0x18040, AppId 0, Epid 0
Ctrl SAP: 278, Data SAP 337 (1)
Total Rx: 2650, Drop: 0, Tx: 1669, Drop: 0
Recirc Rx: 0, Drop: 0
Rx pps Inst/Max: 0/20
Tx pps Inst/Max: 0/5
COS=0 Rx: 0, Tx: 0 COS=1 Rx: 912, Tx: 0
COS=2 Rx: 0, Tx: 0 COS=3 Rx: 0, Tx: 0
COS=4 Rx: 0, Tx: 0 COS=5 Rx: 0, Tx: 1669
COS=6 Rx: 0, Tx: 0 COS=7 Rx: 1738, Tx: 0
Client uuid: 270, 1 filters, pid 3128
Filter 1: EthType 0x86dd, DstIf 0x150b0000, Excl. Any
Rx: 0, Drop: 0
Options: TO 0, Flags 0x18040, AppId 0, Epid 0
Ctrl SAP: 281, Data SAP 283 (1)
Total Rx: 0, Drop: 0, Tx: 0, Drop: 0
Recirc Rx: 0, Drop: 0
Rx pps Inst/Max: 0/0
Tx pps Inst/Max: 0/0
COS=0 Rx: 0, Tx: 0 COS=1 Rx: 0, Tx: 0
COS=2 Rx: 0, Tx: 0 COS=3 Rx: 0, Tx: 0
COS=4 Rx: 0, Tx: 0 COS=5 Rx: 0, Tx: 0
COS=6 Rx: 0, Tx: 0 COS=7 Rx: 0, Tx: 0
show system internal pktmgr stats命令
使用此命令可检查数据包是否到达入口路径中的数据包管理器，以及数据包管理器是否正在发送数据包。此命令还可以帮助您确定接收或传输路径中的缓冲区是否出现问题。
switch# show system internal pktmgr stats
Route Processor Layer-2 frame statistics
Inband driver: valid 1, state 0, rd-thr 1, wr-thr 0, Q-count 0
Inband sent: 56441521, copy_drop: 0, ioctl_drop: 0,
unavailable_buffer_hdr_drop: 0
Inband standby_sent: 0
Inband encap_drop: 0, linecard_down_drop: 0
Inband sent by priority [0=11345585,5=164281,6=43280117,7=1651538]
Inband max output queue depth 0
Inband recv: 89226232, copy_drop: 0, ioctl_drop: 0,
unavailable_buffer_hdr_drop: 0
Inband decap_drop: 0, crc_drop: 0, recv by priority: [0=89226232]
Inband bad_si 0, bad_if 0, if_down 0
Inband last_bad_si 0, last_bad_if 0, bad_di 0
Inband kernel recv 44438488, drop 0, rcvbuf 2097152, sndbuf 4194304
Mgmt driver: valid 1, state 0, rd-thr 1, wr-thr 0, Q-count 0
Mgmt sent: 971834, copy_drop: 0, ioctl_drop: 0,
unavailable_buffer_hdr_drop: 0
Mgmt standby_sent: 0
Mgmt encap_drop: 0, linecard_down_drop: 0
Mgmt sent by priority [0=925871,5=45963]
Mgmt max output queue depth 0
Mgmt recv: 1300932, copy_drop: 0, ioctl_drop: 0,
unavailable_buffer_hdr_drop: 0
Mgmt decap_drop: 0, crc_drop: 0, recv by priority: [0=1300932]
Mgmt bad_si 0, bad_if 0, if_down 0
Mgmt last_bad_si 0, last_bad_if 0, bad_di 0
Mgmt kernel recv 1300932, drop 0, rcvbuf 2097152, sndbuf 2097152
Inband2 driver: valid 0, state 1, rd-thr 0, wr-thr 0, Q-count 0
No of packets passed by PM Policy database 876452
No of packets dropped by PM Policy database 0
No of packets bypassed by PM Policy database 424480
No of packets dropped by PM originating from kernel 0
MBUFSK Tx: 57413355 pkts (requested 57413355 denied 0), 62236110 mbufs
function invoked 57413355 denied 0/0 c/realloc 0/0
MBUFSK Rx: 90527161 pkts, 90527421 mbufs (requested 2388154951 denied 0)
function invoked 35132836
Global input drops: bad-interface 0, bad-encap 0, failed-decap 0,
no prot 42371
recv_encaptype_err 0, recv_decap_err 0, recv_mac_mismatch 0, recv_no_client 0
recv_no_svi 0, recv_no_vlan 0, recv_client_notreg 0, recv_enqueue_fail 0
Global output drops:
send_ifdown_fail 13, send_invalid_iod 0
send_invalid_vlan 0, send_security_drop 0 send_loopback_drop 0,
send_small_pkt_fail 0
send_vsl_err 0, send_dce_err 0,send_enqueue_fail 0, send_alloc_fail 0
DCE errors:
misc_err 0, lookup_err 0, encap_err 0, decap_err 0
Platform errors:
generic_encap_err 0, encap_err 0, decap_err 0
vlan_encap_err 0, vlan_decap_err 0
DC3HDR errors:
pkt_err 0, vlan_err 0, ifidx_err 0, portidx_err 0
RECIRC errors:
misc_err 0, lookup_err 0
Lcache errors:
init_err 0, timer_err 0
Stats errors:
misc_err 0, init_err 0, timer_err 0
Client errors:
alloc_err 0, pid_err 0, register_err 0, unregister_err 0
add_err 0, delete_err 0, update_err 0
VDC errors:
alloc_err 0, set_err 0, update_err 0
Misc. errors:
mts_err 0, mbuf_err 0, drop_exception 0
invalid_drv_type 0, interface_err 0
eth_output_err 0, gre_err 0 otv_err 0
tunnel_6to4_err 0, mcec_err 0, invalid_gpc 0 invalid_ftag 0 invalid_l2_type :0
register_err 0, unregister_err 0, invalid_args 0, file_open_err 0
inband_err 0, vlan_err 0, pm_alloc_err 0, pm_ha_err 0, pm_init_err 0
arp_init_err 0, rtm_init_err 0, am_init_err 0, ui_init_err 0, mpls_init_err 0,
evc_init_err 0
sdb_err 95670, sdb_init_err 0
sysmgr_err 0, eth_span_err 0, buf_pool_err 0, feature_err 0
uuid2client_err 16, dot1q_drop 0, nfcache_init_err 0
Crossbar down drops : 0
Exception packets: mtu-fail 0, icmp-redirect 0, icmp-unreach 0, ttl 0
options 0, rpf 0, two-mcast-rpf 0, l3-bridge-drop 0
mcast-next-hop 0, municast 0
drop 0, acl-redirect 0, acl-redir-arp 0, acl-redir-dhcp 0
sup-shim-pkt 229385 Pkts recvd with peergway SUP DI 0
VPC Frame Statistics
VPC Mgr reg state 1, im-ext-sdb-state 1
Ingress BPDUs qualified for redirection 0
Ingress BPDUs redirected to peer 0
Egress BPDUs qualified for redirection 0
Egress BPDUs dropped due to remote down 0
Egress BPDUs redirected to peer 0
Ingress pkts qualified for peergateway tunneling 0
Ingress pkts tunneled to peer with peergateway conf 0
Peer-gw pkts tunneled tx :
From VPC+ leg 0, From VPC leg 0, From l2mp network 0
From orphan port in VPC+ 0, from orphan port in VPC 0
For ARP 0, IP 0, IPv6 0, unknown 0
Total Tunneled packets received from peer 0
Local delivery 0, Transmit down 0, peer-gw tunneled 0
Tunnel rx packets drop due to local vpc leg down 0
Peer-gw pkts tunneled rx :
From VPC+ leg 0, VPC leg 0, From l2mp network 0
From orphan port in VPC+ 0, from orphan port in VPC 0
For ARP 0, IP 0, IPv6 0, unknown 0
Error Statistics
VPC manager: uninit 0, library 0
Tunnel (ingress): non-mct rx 0, bad hdr 0, badpkts 0, non gpc peer 0
Tunnel (ingress): redirlooperror 0
Tunnel (egress): in-bpdu 0, e-bpdu 0, peer-gw 0
MBuf: alloc: 0, prepend: 0, pullup: 0
Invalid filter: 0
Peergw tunneling tx: invalid ftag 0, invalid swid 0
invalid iftype 0, invalid GPC of peer 0
Peergw tunneling rx: invalid msg subtype 0, invalid GPC of core 0
invalid GPC of peer 0, invalid svi 0
Unicast pkts which passed egress redirection check 0
statistics last reset 2w0d
修订历史记录
| 版本 | 发布日期 | 备注 |
|---|---|---|
2.0 |
09-Jun-2023 |
重新认证 |
1.0 |
26-Apr-2013 |
初始版本 |
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