ASR 1000系列 — 检查路由器的内存使用情况

简介

本文档提供有关如何维护和检查Cisco ASR 1000系列聚合服务路由器(ASR)上系统内存大小的信息。 本文档适用于支持Cisco ASR 1000系列聚合服务路由器的所有Cisco IOS XE软件版本。

先决条件

要求

本文档没有任何特定的要求。

使用的组件

本文档中的信息基于以下软件和硬件版本：

• 所有Cisco ASR 1000系列聚合服务路由器，包括1002、1004和1006路由器。

• 支持Cisco ASR 1000系列聚合服务路由器的所有Cisco IOS XE软件版本。

本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您使用的是真实网络，请确保您已经了解所有命令的潜在影响。

规则

有关文档规则的详细信息，请参阅 Cisco 技术提示规则。

内存使用概述

思科ASR 1000系列聚合服务路由器的路由处理器(RP)具有同步动态RAM(SDRAM)，可为代码、数据和数据包提供存储。RP为ASR1000-RP1提供高达4 GB的内存扩展能力，为ASR1000-RP2提供高达16 GB的内存扩展能力。

Cisco ASR 1000系列聚合服务路由器将Cisco IOS XE软件作为其软件架构。基于Cisco IOS软件，Cisco IOS XE软件是基于路由处理器上的Linux内核构建的模块化操作系统。IOS守护程序(IOSd)在Linux下作为标准用户级进程运行，并提供Cisco IOS功能集，包括路由协议。启动后，IOSd将被授予访问RP上固定数量的物理内存的权限，通常2 GB系统为50%或1 GB，4 GB系统为2 GB。2/4RU机箱，带4GB主内存的双IOS操作，每个机箱都消耗1GB的软件冗余。

要显示内存大小、软件、硬件和Web界面版本信息，请使用show version命令。

Router#show version
Cisco IOS Software, IOS-XE Software (PPC_LINUX_IOSD-ADVIPSERVICESK9-M), 
Version 12.2(33)XNB, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Fri 05-Sep-08 08:56 by mcpre 

Cisco IOS-XE software, Copyright (c) 1986-2008 by Cisco Systems, Inc.
All rights reserved.  Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0.  The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY.  You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0.  For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.
 
ROM: IOS-XE ROMMON

ASR1006b uptime is 6 days, 21 hours, 49 minutes
Uptime for this control processor is 6 days, 21 hours, 51 minutes
System returned to ROM by reload at 15:35:57 JST Thu Feb 5 2009
System restarted at 15:40:15 JST Thu Feb 5 2009
System image file is "bootflash:packages.conf"
Last reload reason: Reload command 

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately. 

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html 

If you require further assistance please contact us by sending email to
export@cisco.com. 

cisco ASR1006 (RP1) processor with 1779130K/6147K bytes of memory.

!--- total memory allocated to IOSd.

16 Gigabit Ethernet interfaces
21 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
32768K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.

!--- IOS-XE total memory size.

955063K bytes of eUSB flash at bootflash:.
39004543K bytes of SATA hard disk at harddisk:. 

Configuration register is 0x2102

检查内存使用情况

检查IOSd中的内存使用情况

show processes 命令显示有关活动进程的信息。发出show processes memory以显示IOSd中使用的内存量。

Router#show processes memory
Processor Pool Total: 1821391588 Used:  218319000 Free: 1603072588
 lsmpi_io Pool Total:    6295088 Used:    6294116 Free:        972 

 PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process
   0   0  174405308    8586260  134742552        811     137870 *Init*
   0   0      65688     393404        152          0          0 *Sched*
   0   0   21603272   48285960     274932          3          1 *Dead*
   0   0          0          0     406304          0          0 *MallocLite*
   1   0     431576          0     448716          0          0 Chunk Manager
   2   0        236        236      11140          0          0 Load Meter
   3   0    2785880    2782996      32092          0          0 Exec
   4   0          0          0      17140          0          0 Retransmission o
   5   0      34360          0      17140          0          0 IPC ISSU Dispatc
   6   0       3336        236      20240          0          0 Check heaps
   7   0      32780      32780      17140         45          0 Pool Manager
   8   0        236        236      17140          0          0 Timers
   9   0  206550924  206496084      71980    9326586    9326586 ARP Input
  10   0      24356      24356      17140        111        111 ARP Background
  11   0        236        236      17140          0          0 ATM Idle Timer
  12   0          0          0      17140          0          0 ATM ASYNC PROC
  13   0          0          0      17140          0          0 AAA_SERVER_DEADT
  14   0          0          0      29140          0          0 Policy Manager
  15   0      59092        692      74972        172        172 Entity MIB API

检查IOS XE上的内存使用情况

要查看Cisco IOS XE上的当前系统内存使用情况，请使用show platform software status control-processor brief命令。

Router#show platform software status control-processor brief
Load Average
 Slot  Status  1-Min  5-Min 15-Min
  RP0 Healthy   0.20   0.23   0.19
  RP1 Healthy   0.19   0.19   0.12
 ESP0 Healthy   0.65   0.54   0.47
 SIP1 Healthy   0.17   0.07   0.01
 SIP2 Healthy   0.02   0.06   0.01

Memory (kB)
 Slot  Status    Total     Used (Pct)     Free (Pct) Committed (Pct)
  RP0 Healthy  3919872  2710788 (65%)  1209084 (29%)   2327484 (56%)
  RP1 Healthy  3919872  2377136 (57%)  1542736 (37%)   2320964 (56%)
 ESP0 Healthy  2030444  1112344 (53%)   918100 (43%)   3409068 (162%)
 SIP1 Healthy   484452   293408 (55%)   191044 (36%)    244180 (46%)
 SIP2 Healthy   484452   293408 (55%)   191044 (36%)    244020 (46%)

CPU Utilization
 Slot  CPU   User System   Nice   Idle    IRQ   SIRQ Iowait
  RP0    0  10.91   1.88   0.00  86.67   0.38   0.13   0.00
  RP1    0   8.06   1.22   0.00  90.11   0.00   0.03   0.55
 ESP0    0   5.78   3.61   0.00  90.51   0.02   0.05   0.00
 SIP1    0   4.32   0.45   0.00  95.20   0.00   0.01   0.00
 SIP2    0   3.95   0.44   0.00  95.57   0.00   0.01   0.00

要显示在Cisco IOS XE上运行的每个进程的内存使用情况，请使用监控平台软件进程{fp|rp} {active|standby}。屏幕显示后，您可以键入“shift + M”，以便根据内存使用情况对显示的进程进行排序。

RES表示进程使用的非交换物理内存，SHR表示进程使用的共享内存量。RES + SHR是进程的总量，而%MEM表示当前使用的可用物理内存共享。

Router#monitor platform software process rp active
top - 05:18:46 up 14 days, 17:33,  0 users,  load average: 0.00, 0.01, 0.00
Tasks: 119 total,   1 running, 118 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.4% us,  0.4% sy,  0.0% ni, 99.1% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:   3714760k total,  1454344k used,  2260416k free,    97952k buffers
Swap:        0k total,        0k used,        0k free,   875376k cached 

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
17385 root      20   0 1874m 338m  75m S  0.2  9.3  65:59.18 ppc_linux_iosd-
18098 root      20   0 71880  59m 6324 S  0.2  1.6  10:48.84 smand
16521 root      20   0 87868  51m  47m S  0.0  1.4   0:02.80 fman_rp
16903 root      20   0 27788  16m  14m S  0.0  0.5  15:41.61 imand
15957 root      20   0 24776 9696 6880 S  0.2  0.3  12:49.67 cmand
17697 root      20   0 19504 6160 4544 S  0.0  0.2   0:00.95 psd
16316 root      20   0 18232 5972 3736 S  0.0  0.2  12:43.32 emd
16732 root      20   0 16184 5556 3900 S  0.4  0.1  21:22.61 hman
17237 root      20   0 15892 5456 3088 S  0.0  0.1   0:00.99 plogd
15166 root      20   0  4056 2396 1248 S  0.0  0.1   0:00.72 pvp.sh
16937 root       9 -11  3992 2308 1232 S  0.0  0.1   0:00.13 pman.sh
15559 root       9 -11  3992 2304 1228 S  0.0  0.1   0:00.13 pman.sh
17978 root       9 -11  3992 2304 1228 S  0.0  0.1   0:00.13 pman.sh

如果在控制台上发出monitor platform software process命令时显示此消息，则需要使用terminal terminal-type命令设置终端类型，以便适当设置终端类型，例如VT100。

Router#monitor  platform software process rp active
Terminal type 'network' unsupported for command
Change the terminal type with the 'terminal terminal-type' command.

Router#terminal terminal-type VT100

检查QFP上的内存使用情况

要显示有关QFP的内存使用情况的信息，请使用show platform hardware qfp active infrastructure exmem statistics命令。Exmem包含IRAM、DRAM、SRAM和BQS相关内存。

Router#show platform hardware qfp active infrastructure exmem statistics
QFP exmem statistics

Type: Name: IRAM, CPP: 0
  Total: 134217728
  InUse: 5372928
  Free: 127926272
  Free protected: 918528
  Free unprotected: 0
  Lowest free water mark: 128844800
  Largest free block: 99505152
Type: Name: DRAM, CPP: 0
  Total: 402653184
  InUse: 124705792
  Free: 275775488
  Free protected: 1041408
  Free unprotected: 1130496
  Lowest free water mark: 275587072
  Largest free block: 273415168


 
       

要显示每个用户的内存使用情况，请添加用户选项，如图所示。

Router#show platform hardware qfp active infrastructure exmem statistics user
Type: Name: IRAM, CPP: 0

  Allocations  Bytes-Alloc  Bytes-Total  User-Name
  -------------------------------------------------------------------------------
  1            115200       115712       CPP_FIA
Type: Name: DRAM, CPP: 0
  Allocations  Bytes-Alloc  Bytes-Total  User-Name
  -------------------------------------------------------------------------------
  4            1248         4096         P/I
  22           11567884     11585536     SBC
  9            270600       276480       CEF
  1            1138256      1138688      QM RM
  3            528          3072         CFM
  4            262144       262144       Qm 16
  34           8405116      8436736      ING_EGR_UIDB
  1            655360       655360       ING EGR INPUT CHUNK_Config_0

 
       

要显示QFP的TCAM使用情况，请使用show platform hardware qfp active tcam resource-manager usage命令。

Router#show platform hardware qfp active tcam resource-manager usage
QFP TCAM Usage Information

80 Bit Region Information
--------------------------
Name                                : Leaf Region #0
Number of cells per entry           : 1
Current 80 bit entries used         : 0
Current used cell entries           : 0
Current free cell entries           : 0
  :
  :
Total TCAM Cell Usage Information
----------------------------------
Name                                : TCAM #0 on CPP #0
Total number of regions             : 3
Total tcam used cell entries        : 0
Total tcam free cell entries        : 131072
Threshold status                    : below critical limit

相关信息

• 排除Cisco ASR 1000 Series Aggregation Services Routers失败故障
• Cisco ASR 1000系列聚合服务路由器支持页
• 技术支持和文档 - Cisco Systems