High CPU Utilization on 7200-VXR with NPEG2

sabuz_banik · ‎11-30-2012

Hi,

My router is running with BGP (One eBGP and One IBGP session). I have filterdown the BGP roting table by using prefix-List and default route to upstream router.But still found the CPU process is high (80%/80% with 60MB traffic). Find the bellow out put and assist me.

Sh Proc CPU

-------------------

CPU utilization for five seconds: 88%/88%; one minute: 87%; five minutes: 87%

PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process

2 180 4759 37 0.07% 0.06% 0.07% 0 Load Meter

141 240 5936995 0 0.15% 0.15% 0.15% 0 HQF Shaper Backg

Sh Version

-------------------

KAYSGR1#sh version

Cisco IOS Software, 7200 Software (C7200P-ADVIPSERVICESK9-M), Version 12.4(24)T5, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Compiled Fri 04-Mar-11 07:11 by prod_rel_team

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

BOOTLDR: Cisco IOS Software, 7200 Software (C7200P-KBOOT-M), Version 12.4(4)XD5, RELEASE SOFTWARE (fc1)

KAYSGR1 uptime is 6 hours, 37 minutes

System returned to ROM by reload at 04:55:20 UTC Sat Dec 1 2012

System image file is "disk2:c7200p-advipservicesk9-mz.124-24.T5.bin"

Last reload reason: Reload Command

This product contains cryptographic features and is subject to United

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Cisco 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory.

Processor board ID 21288417

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 300 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

1 Packet over SONET interface

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

Raju Sekharan · ‎11-30-2012

Your High CPU is not due to any process. It is because of interupts

Interrupt cpu normally due to traffic switching.

CPU utilization for five seconds: 88%/88%; one minute: 87%; five minutes: 87%

Check the following outputs

Show interfaces | inc up|rate|drop

Show interface stat

Thank you

Raju

sabuz_banik · ‎11-30-2012

Hi Rajs,

I could see droping in my POS1/0 port.

KAYSGR1#sh int | in up|rate|drop

GigabitEthernet0/1 is up, line protocol is up

Full-duplex, 1000Mb/s, link type is force-up, media type is LX

output flow-control is XON, input flow-control is unsupported

Input queue: 0/75/0/660 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

5 minute input rate 64871000 bits/sec, 95991 packets/sec

5 minute output rate 71232000 bits/sec, 106673 packets/sec

0 unknown protocol drops

Full-duplex, 100Mb/s

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 unknown protocol drops

GigabitEthernet0/2 is up, line protocol is up

Full-duplex, 1000Mb/s, link type is force-up, media type is LX

output flow-control is XON, input flow-control is unsupported

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

5 minute input rate 2000 bits/sec, 5 packets/sec

5 minute output rate 0 bits/sec, 1 packets/sec

823 unknown protocol drops

Full-duplex, 1000Mb/s, link type is force-up, media type is LX

output flow-control is XON, input flow-control is unsupported

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 unknown protocol drops

POS1/0 is up, line protocol is up

Input queue: 0/75/0/738 (size/max/drops/flushes); Total output drops: 1031

Queueing strategy: fifo

5 minute input rate 62796000 bits/sec, 106805 packets/sec

5 minute output rate 57215000 bits/sec, 96077 packets/sec

0 unknown protocol drops

Loopback0 is up, line protocol is up

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 unknown protocol drops

------------------------------------------

Sh int stat

--------------------

KAYSGR1#sh int stats

GigabitEthernet0/1