Guest

Cisco ASR 1000 Series Aggregation Services Routers

Check Memory Usage on Cisco ASR 1000 Series Aggregation Services Routers

Document ID: 110739

Updated: Aug 23, 2009

   Print

Introduction

This document provides information on how to maintain and check system memory size on the Cisco ASR 1000 Series Aggregation Services Routers (ASR). This document applies to all Cisco IOS XE software releases that support the Cisco ASR 1000 Series Aggregation Services Routers.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

The information in this document is based on these software and hardware versions:

  • All Cisco ASR 1000 Series Aggregation Services Routers, which includes 1002, 1004 and 1006 routers.

  • All Cisco IOS XE software releases that support the Cisco ASR 1000 Series Aggregation Services Routers.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Memory Usage Overview

The route processor (RP) of the Cisco ASR 1000 Series Aggregation Services Router has synchronous dynamic RAM (SDRAM), which provides storage for code, data and packets. The RP offers memory scalability up to 4 GB for ASR1000-RP1 and 16 GB for ASR1000-RP2.

Cisco ASR 1000 Series Aggregation Services Routers introduce the Cisco IOS XE Software as their software architecture. Based on Cisco IOS Software, Cisco IOS XE Software is a modular operating system built on a Linux kernel on route processor. IOS daemon (IOSd) runs as a standard user-level process under Linux and provides the Cisco IOS feature set, which includes routing protocols. Upon startup, IOSd is granted access to a fixed amount of physical memory on the RP typically 50 percent or 1 GB on 2 GB systems and 2 GB on 4 GB systems. Dual IOS operation with 2/4RU chassis with 4GB of Main Memory for software redundancy each consume 1 GB.

In order to display memory size, software, hardware, and web interface version information, use the show version command.

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

Check Memory Usage

Check Memory Usage within IOSd

The show processes command displays information about the active processes. Issue show processes memory to show the amount of memory used within IOSd.

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

Check Memory Usage on IOS XE

In order to see current system memory usage on Cisco IOS XE, use the show platform software status control-processor brief command.

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

In order to display memory usage for each process running on Cisco IOS XE, use monitor platform software process {fp|rp} {active|standby}. After the screen appears, you can type “shift + M” in order to sort displayed processes with memory usage.

RES indicates the non-swapped physical memory a process uses and SHR indicates the amount of shared memory used by a process. RES + SHR is the total amount of a process, and %MEM indicates the currently used share of available physical memory for the processes.

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

In case this message appears when you issue the monitor platform software process command on the console, you need to set a terminal type with the terminal terminal-type command in order to appropriate one, such as 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

Check Memory Usage on QFP

In order to display information about memory usage of QFP, use the show platform hardware qfp active infrastructure exmem statistics command. Exmem contains IRAM, DRAM, SRAM and BQS related memory.

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


<snip>

In order to display memory usage for each user, add user options, as shown.

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

<snip>

In order to display TCAM usage of QFP, use the show platform hardware qfp active tcam resource-manager usage command.

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

Related Information

Updated: Aug 23, 2009
Document ID: 110739