cisco 7200 NPEG2 bootloader issue and low performance

Dr.X · ‎08-19-2015

Hi

i have 2 cisco 7200 identical routers and work the same work as LNS and same load

but i found that CPU on Router 1 is higher 10 % than cpu on Router 2

i did alot of investigation but no luck

finally i foud something different in the IOS and boot laoder version .

i will post config of the good router performance then the config of higher cpu router .

1- good router performance :

Bras2#sh ver
Bras2#sh version
Cisco IOS Software, 7200 Software (C7200P-ADVENTERPRISEK9-M), Version 12.4(24)T8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Sun 09-Sep-12 07:00 by prod_rel_team

ROM: System Bootstrap, Version 12.4(12.2r)T, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, 7200 Software (C7200-KBOOT-M), Version 12.4(4)XD, RELEASE SOFTWARE (fc1)

Bras2 uptime is 15 weeks, 8 hours, 28 minutes
System returned to ROM by power-on
System image file is "disk2:c7200p-adventerprisek9-mz.124-24.T8.bin"

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 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory.
Processor board ID 26790100
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2
6 slot VXR midplane, Version 2.9

Last reset from power-on

PCI bus mb1 (Slots 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb1 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

PCI bus mb2 (Slots 2, 4 and 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

Bras2#sh ve
Bras2#sh version
Cisco IOS Software, 7200 Software (C7200P-ADVENTERPRISEK9-M), Version 12.4(24)T8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Sun 09-Sep-12 07:00 by prod_rel_team

ROM: System Bootstrap, Version 12.4(12.2r)T, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, 7200 Software (C7200-KBOOT-M), Version 12.4(4)XD, RELEASE SOFTWARE (fc1)

Bras2 uptime is 15 weeks, 8 hours, 30 minutes
System returned to ROM by power-on
System image file is "disk2:c7200p-adventerprisek9-mz.124-24.T8.bin"

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 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory.
Processor board ID 26790100
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2
6 slot VXR midplane, Version 2.9

Last reset from power-on

PCI bus mb1 (Slots 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb1 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

PCI bus mb2 (Slots 2, 4 and 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

Please refer to the following document "Cisco 7200 Series Port Adaptor
Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>
for c7200 bandwidth points oversubscription and usage guidelines.

1 FastEthernet interface
3 Gigabit Ethernet interfaces
2045K bytes of NVRAM.

254464K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes).
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102

=======================================================
Bras2# sh bootv
Bras2# sh bootvar
BOOT variable = disk2:c7200p-adventerprisek9-mz.124-24.T8.bin,1;disk2:c7200p-adventerprisek9-mz.124-24.T7.bin,1;
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
WARM_REBOOT variable = FALSE
Configuration register is 0x2102

========================
Bras2# sh bootflash:
-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time--------- name
1 .. image 31E6C0CD 80D9F8 28 7919992 Apr 27 2011 10:32:31 +03:00 c7200p-kboot-mz.124-4.XD.bin
2 .. config AF4F98C5 80F580 16 6917 Mar 6 2001 15:49:06 +03:00 ns-gateway-confg
3 .D image D9C0D081 F9E9F4 37 7926772 Mar 6 2001 16:13:48 +03:00 c7200p-kboot-mz.124-4.XD5-Gateway.bin
4 .D image D9C0D081 172DE68 37 7926772 Mar 6 2001 18:00:13 +03:00 c7200p-kboot-mz.124-4.XD5-Gateway.bin
5 .D image D9C0D081 1EBD2DC 29 7926772 Mar 6 2001 18:05:14 +03:00 c7200p-kboot-mz.124-4.XD5.bin
6 .. config D7477BA9 1EBEBF4 9 6294 Mar 7 2001 17:44:54 +03:00 newconfig
7 .. config 5719EC7F 1EC08A4 4 7214 Mar 24 2001 15:57:00 +03:00 xp10

33814364 bytes available (31721636 bytes used)
Bras2#

===============================

Router 2 that has higer CPU .

BRAS3#sh version
Cisco IOS Software, 7200 Software (C7200P-ADVENTERPRISEK9-M), Version 12.4(24)T7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 28-Feb-12 12:53 by prod_rel_team

ROM: System Bootstrap, Version 12.4(12.2r)T, RELEASE SOFTWARE (fc1)

BRAS3 uptime is 19 weeks, 1 hour, 2 minutes
System returned to ROM by power-on
System image file is "disk2:/c7200p-adventerprisek9-mz.124-24.T7.bin"

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 7206VXR (NPE-G2) processor (revision A) with 1966080K/65536K bytes of memory.
Processor board ID 13252317
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2
6 slot VXR midplane, Version 2.0

Last reset from power-on

PCI bus mb1 (Slots 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb1 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

PCI bus mb2 (Slots 2, 4 and 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

Please refer to the following document "Cisco 7200 Series Port Adaptor
Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>
for c7200 bandwidth points oversubscription and usage guidelines.

1 FastEthernet interface
3 Gigabit Ethernet interfaces
2045K bytes of NVRAM.

250880K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes).
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102

BRAS3# sh fl
BRAS3# sh bo
BRAS3# sh bootv
BRAS3# sh bootvar
BOOT variable = disk2:/c7200p-adventerprisek9-mz.124-24.T7.bin,1;
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
WARM_REBOOT variable = FALSE
Configuration register is 0x2102

BRAS3# sh bootfl
BRAS3# sh bootflash:
-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time--------- name
1 .. image D9C0D081 80F474 29 7926772 Sep 15 2000 09:01:42 +02:00 c7200p-kboot-mz.124-4.XD5.bin
2 .. config FAC0ADBE 81113C 21 7240 Dec 23 1999 01:25:25 +02:00 gateway-runn16/7/2012
3 .. config FAC0ADBE 812E04 15 7240 Dec 24 1999 07:34:43 +02:00 1772012configgg
4 .. config C3708676 814B00 7 7290 Dec 25 1999 07:05:55 +02:00 1872012

57586944 bytes available (7949056 bytes used)
BRAS3#

======================

i have 2 notes :

1- in router with high cpu i cant see the boot loader in the commad (show version)

2- router with high cpu i cant see many files in the command (show bootflash)

i feel that this issue is doing Higer CPU .

here is CPU comparision :

Bras2#sh processes cpu sorted
CPU utilization for five seconds: 65%/59%; one minute: 66%; five minutes: 65%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
87 755920508 582337149 1298 3.11% 2.70% 2.37% 0 IP Input
122 264201920 168945594 1563 1.35% 1.15% 1.02% 0 L2X Data Daemon
270 17304100 300521128 57 0.63% 0.64% 0.63% 0 PPP Events
112 40540376 14043032 2886 0.31% 0.31% 0.31% 0 CEF: IPv4 proces
142 1148560 2232207423 0 0.23% 0.23% 0.23% 0 HQF Shaper Backg
52 39616916 1825158 21706 0.23% 0.22% 0.23% 0 Compute load avg
78 1107068 16023819 69 0.15% 0.12% 0.13% 0 ACCT Periodic Pr
258 22339980 65329658 341 0.15% 0.10% 0.10% 0 RADIUS

===============

BRAS3#sh processes cpu sorted
CPU utilization for five seconds: 76%/67%; one minute: 75%; five minutes: 75%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
87 843463936 1240374360 680 3.75% 4.12% 4.04% 0 IP Input
122 287951140 668143305 430 1.51% 1.62% 1.60% 0 L2X Data Daemon
263 20626476 376044742 54 0.63% 0.66% 0.64% 0 PPP Events
269 90045028 128764669 699 0.39% 0.41% 0.40% 0 SNMP ENGINE
112 44340784 17702557 2504 0.31% 0.32% 0.31% 0 CEF: IPv4 proces
142 1502348 2800696191 0 0.23% 0.23% 0.23% 0 HQF Shaper Backg
274 21678800 3831880 5657 0.23% 0.13% 0.09% 0 VTEMPLATE Backgr
52 43958228 2302505 19091 0.23% 0.23% 0.23% 0 Compute load avg
267 34037648 250332320 135 0.15% 0.13% 0.15% 0 IP SNMP
258 24378236 75734571 321 0.15% 0.12% 0.10% 0 RADIUS
96 1402556 125702660 11 0.15% 0.14% 0.15% 0 IPHC Admin

hope to help .

cheers

acampbell · ‎08-19-2015

Hi,

You seem to have high "IP INPUT" processing

Start your investigation by looking at this link
http://www.cisco.com/c/en/us/support/docs/routers/7500-series-routers/41160-highcpu-ip-input.html

Regards
Alex

Regards, Alex. Please rate useful posts.

Dr.X · ‎08-19-2015

Hi

thsi vlaue is natural

but im asking here

whey a router with same traffic have more 10 %

im sure its not config and i guess its an Ios issue

that's why i asked here about the IOS

i dont see bootloader version , could this affect the ios behavior ?