Tried everything, but still high CPU utilisation on 2811 router

WalterKlomp · ‎05-10-2011

Hi Experts,

I have read an tried just about everything regarding CPU utilisation... I can't for the life of me figure out why the interrupt driven CPU usage is so high.

At around 6Mbps of VoIP traffic, the router is 100% CPU and it start dropping packets all over the place.

there is no logging in the access-list (there is only one inbound access list).

Using QoS or not, doesn't seem to make a difference

All route-caching features are ON. (CEF, Flow, Policy, Fast)

Yet the minimum CPU utilisation I have seen is 25%/25%... On average it's 40% during the day, but once traffic picks up to around 6000 packets per second, the router is gone...

I have a 50/50 Mbps connection, but I can use only 6 for VoIP ?

I hope somebody can help me.

Thanks

Walter.

Show interfaces:

GigabitEthernet0/0 is up, line protocol is up

Hardware is MV96340 Ethernet, address is 0014.1c26.7c30 (bia 0014.1c26.7c30)

Description: $ETH-LAN$$FW_INSIDE$

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 255/255, txload 6/255, rxload 7/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 100Mb/s, media type is T

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

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 11:55:29

Input queue: 2/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: Class-based queueing

Output queue: 0/100/64/0 (size/max total/threshold/drops)

Conversations 0/2/256 (active/max active/max total)

Reserved Conversations 4/4 (allocated/max allocated)

Available Bandwidth 4000 kilobits/sec

5 minute input rate 2793000 bits/sec, 3488 packets/sec

5 minute output rate 2734000 bits/sec, 3632 packets/sec

116982865 packets input, 3127961458 bytes, 0 no buffer

Received 80940 broadcasts, 0 runts, 0 giants, 0 throttles

776 input errors, 0 CRC, 0 frame, 0 overrun, 776 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

122381088 packets output, 2917881813 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier, 955 pause output

0 output buffer failures, 0 output buffers swapped out

GigabitEthernet0/1 is up, line protocol is up

Hardware is MV96340 Ethernet, address is 0014.1c26.7c31 (bia 0014.1c26.7c31)

Description: $FW_OUTSIDE$

MTU 1500 bytes, BW 50000 Kbit, DLY 100 usec,

reliability 255/255, txload 12/255, rxload 12/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 100Mb/s, media type is T

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

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:08, output 00:00:00, output hang never

Last clearing of "show interface" counters 11:55:35

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

Queueing strategy: Class-based queueing

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/2/256 (active/max active/max total)

Reserved Conversations 4/4 (allocated/max allocated)

Available Bandwidth 2000 kilobits/sec

5 minute input rate 2382000 bits/sec, 3384 packets/sec

5 minute output rate 2422000 bits/sec, 3233 packets/sec

112019602 packets input, 1309720228 bytes, 0 no buffer

Received 37 broadcasts, 0 runts, 0 giants, 0 throttles

6 input errors, 0 CRC, 0 frame, 0 overrun, 6 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

106502288 packets output, 1491121361 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier, 8 pause output

0 output buffer failures, 0 output buffers swapped out

Show interface switching:

GigabitEthernet0/0 $ETH-LAN$$FW_INSIDE$

Throttle count 6

Drops RP 8 SP 0

SPD Flushes Fast 0 SSE 0

SPD Aggress Fast 0

SPD Priority Inputs 2571886 Drops 0

Protocol IP

Switching path Pkts In Chars In Pkts Out Chars Out

Process 2466474 232989228 834642 682286322

Cache misses 0 - - -

Fast 1605087272 84348648 1819463644 4147073402

Auton/SSE 0 0 0 0

Protocol DEC MOP

Switching path Pkts In Chars In Pkts Out Chars Out

Process 0 0 2826 217602

Cache misses 0 - - -

Fast 0 0 0 0

Auton/SSE 0 0 0 0

Protocol ARP

Switching path Pkts In Chars In Pkts Out Chars Out

Process 2568233 154045020 443185 26591100

Cache misses 0 - - -

Fast 0 0 0 0

Auton/SSE 0 0 0 0

Protocol Other

Switching path Pkts In Chars In Pkts Out Chars Out

Process 113630 41256882 170349 10220940

Cache misses 0 - - -

Fast 0 0 0 0

Auton/SSE 0 0 0 0

NOTE: all counts are cumulative and reset only after a reload.

GigabitEthernet0/1 $FW_OUTSIDE$

Throttle count 3

Drops RP 15 SP 0

SPD Flushes Fast 0 SSE 0

SPD Aggress Fast 0

SPD Priority Inputs 9773 Drops 0

Protocol IP

Switching path Pkts In Chars In Pkts Out Chars Out

Process 1779287 1333404015 349499 37612434

Cache misses 172 - - -

Fast 1319796001 2010536801 1103515986 380354212

Auton/SSE 0 0 0 0

Protocol ARP

Switching path Pkts In Chars In Pkts Out Chars Out

Process 1420 85200 1422 85320

Cache misses 0 - - -

Fast 0 0 0 0

Auton/SSE 0 0 0 0

Protocol Other

Switching path Pkts In Chars In Pkts Out Chars Out

Process 0 0 170351 10221060

Cache misses 0 - - -

Fast 0 0 10 1100

Auton/SSE 0 0 0 0

Show proc cpu sort looks like this at the moment:

CPU utilization for five seconds: 42%/41%; one minute: 41%; five minutes: 39%

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

200 1147508 28799 39845 0.31% 0.03% 0.00% 0 Per-minute Jobs

36 793656 1702120 466 0.07% 0.01% 0.00% 0 Per-Second Jobs

2 9600 340675 28 0.00% 0.00% 0.00% 0 Load Meter

3 832 19243 43 0.00% 0.00% 0.00% 0 CRYPTO IKMP IPC

5 0 1 0 0.00% 0.00% 0.00% 0 EDDRI_MAIN

7 592608 35982 16469 0.00% 0.00% 0.00% 0 Pool Manager

6 2564412 211190 12142 0.00% 0.04% 0.05% 0 Check heaps

9 0 1 0 0.00% 0.00% 0.00% 0 OIR Handler

8 0 2 0 0.00% 0.00% 0.00% 0 Timers

11 10240 56780 180 0.00% 0.00% 0.00% 0 Environmental mo

12 120 28391 4 0.00% 0.00% 0.00% 0 IPC Dynamic Cach

13 0 1 0 0.00% 0.00% 0.00% 0 IPC Zone Manager

10 0 1 0 0.00% 0.00% 0.00% 0 Crash writer

15 22864 1702016 13 0.00% 0.00% 0.00% 0 IPC Deferred Por

16 0 1 0 0.00% 0.00% 0.00% 0 IPC Seat Manager

17 0 1 0 0.00% 0.00% 0.00% 0 IPC BackPressure

18 915940 2486783 368 0.00% 0.02% 0.00% 0 ARP Input

1 164 113 1451 0.00% 0.00% 0.00% 0 Chunk Manager

20 0 2 0 0.00% 0.00% 0.00% 0 AAA high-capacit

21 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager

22 0 2 0 0.00% 0.00% 0.00% 0 DDR Timers

23 0 2 0 0.00% 0.00% 0.00% 0 Entity MIB API

24 4944 340578 14 0.00% 0.00% 0.00% 0 HC Counter Timer

25 0 2 0 0.00% 0.00% 0.00% 0 Serial Backgroun

14 23928 1702015 14 0.00% 0.00% 0.00% 0 IPC Periodic Tim

19 0 2 0 0.00% 0.00% 0.00% 0 ATM Idle Timer

28 24552 1702012 14 0.00% 0.00% 0.00% 0 GraphIt

29 0 2 0 0.00% 0.00% 0.00% 0 Dialer event

30 0 1 0 0.00% 0.00% 0.00% 0 SERIAL A'detect

31 0 2 0 0.00% 0.00% 0.00% 0 XML Proxy Client

32 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd

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

33 27940 274500 101 0.00% 0.00% 0.00% 0 Net Background

34 2680 54419 49 0.00% 0.00% 0.00% 0 Logger

35 55040 1702009 32 0.00% 0.00% 0.00% 0 TTY Background

26 4 1 4000 0.00% 0.00% 0.00% 0 MPLS HC Counter

37 4444 498 8923 0.00% 0.00% 0.00% 322 Virtual Exec

38 0 1 0 0.00% 0.00% 0.00% 0 Inode Table Dest

39 0 1 0 0.00% 0.00% 0.00% 0 AggMgr Process

40 0 1 0 0.00% 0.00% 0.00% 0 dev_device_inser

41 0 1 0 0.00% 0.00% 0.00% 0 dev_device_remov

42 0 1 0 0.00% 0.00% 0.00% 0 sal_dpc_process

43 0 1 0 0.00% 0.00% 0.00% 0 ARL Table Manage

44 0 2 0 0.00% 0.00% 0.00% 0 ESWPPM

45 0 2 0 0.00% 0.00% 0.00% 0 Eswilp Storm Con

46 0 2 0 0.00% 0.00% 0.00% 0 ESWILPPM

47 0 2 0 0.00% 0.00% 0.00% 0 Eswilp Storm Con

48 38084 6754866 5 0.00% 0.00% 0.00% 0 Netclock Backgro

49 0 2 0 0.00% 0.00% 0.00% 0 SM Monitor

27 0 2 0 0.00% 0.00% 0.00% 0 SMART

51 0 2 0 0.00% 0.00% 0.00% 0 VNM DSPRM MAIN

52 0 1 0 0.00% 0.00% 0.00% 0 DSPFARM DSP READ

50 1884 283828 6 0.00% 0.00% 0.00% 0 mxt5100

54 0 1 0 0.00% 0.00% 0.00% 0 HDV background

55 0 2 0 0.00% 0.00% 0.00% 0 Multi-ISA Event

56 0 1 0 0.00% 0.00% 0.00% 0 Multi-ISA Cleanu

57 0 1 0 0.00% 0.00% 0.00% 0 IGMP Snooping Pr

58 0 1 0 0.00% 0.00% 0.00% 0 IGMP Snooping Re

59 188 56780 3 0.00% 0.00% 0.00% 0 Call Management

60 0 1 0 0.00% 0.00% 0.00% 0 AAL2CPS TIMER_CU

61 0 1 0 0.00% 0.00% 0.00% 0 CES Line Conditi

62 10536 1702018 6 0.00% 0.00% 0.00% 0 Crypto Device Up

64 0 2 0 0.00% 0.00% 0.00% 0 dot1x

65 0 2 0 0.00% 0.00% 0.00% 0 DTP Protocol

66 13908 1702012 8 0.00% 0.00% 0.00% 0 PI MATM Aging Pr

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

67 516 170320 3 0.00% 0.00% 0.00% 0 EtherChnl

68 0 1 0 0.00% 0.00% 0.00% 0 L2X Data Daemon

69 0 2 0 0.00% 0.00% 0.00% 0 Dot11 auth Dot1x

70 0 1 0 0.00% 0.00% 0.00% 0 Dot11 Mac Auth

71 0 1 0 0.00% 0.00% 0.00% 0 AAA_SERVER_DEADT

72 0 2 0 0.00% 0.00% 0.00% 0 AAA Dictionary R

73 20 161 124 0.00% 0.00% 0.00% 0 AAA Server

74 0 1 0 0.00% 0.00% 0.00% 0 AAA ACCT Proc

75 0 1 0 0.00% 0.00% 0.00% 0 ACCT Periodic Pr

76 0 1 0 0.00% 0.00% 0.00% 0 AC Mgr

78 3920 27218 144 0.00% 0.00% 0.00% 0 EM FD Syslog

79 0 2 0 0.00% 0.00% 0.00% 0 EM FD SNMP

80 0 2 0 0.00% 0.00% 0.00% 0 EM FD Memory Thr

81 0 2 0 0.00% 0.00% 0.00% 0 ATM OAM Input

82 0 2 0 0.00% 0.00% 0.00% 0 ATM OAM TIMER

83 1952492 2153707 906 0.00% 0.00% 0.00% 0 IP Input

84 0 1 0 0.00% 0.00% 0.00% 0 ICMP event handl

85 0 52 0 0.00% 0.00% 0.00% 0 TurboACL

87 0 3 0 0.00% 0.00% 0.00% 0 PPP Hooks

88 0 1 0 0.00% 0.00% 0.00% 0 SSS Manager

89 1164 227099 5 0.00% 0.00% 0.00% 0 SSS Test Client

90 0 1 0 0.00% 0.00% 0.00% 0 SSS Feature Mana

91 32544 6653217 4 0.00% 0.00% 0.00% 0 SSS Feature Time

92 0 1 0 0.00% 0.00% 0.00% 0 VPDN call manage

93 0 1 0 0.00% 0.00% 0.00% 0 L2X Socket proce

94 0 1 0 0.00% 0.00% 0.00% 0 L2X SSS manager

95 0 2 0 0.00% 0.00% 0.00% 0 L2TP mgmt daemon

96 0 1 0 0.00% 0.00% 0.00% 0 X.25 Encaps Mana

97 0 2 0 0.00% 0.00% 0.00% 0 EAPoUDP Process

98 0 2 0 0.00% 0.00% 0.00% 0 KRB5 AAA

99 14268 55166 258 0.00% 0.00% 0.00% 0 IP Background

100 3140 28401 110 0.00% 0.00% 0.00% 0 IP RIB Update

53 0 2 0 0.00% 0.00% 0.00% 0 FLEX DNLD MAIN

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

102 0 2 0 0.00% 0.00% 0.00% 0 PPP IPCP

103 0 1 0 0.00% 0.00% 0.00% 0 Socket Timers

104 952 14945 63 0.00% 0.00% 0.00% 0 TCP Timer

105 88 62 1419 0.00% 0.00% 0.00% 0 TCP Protocols

106 0 1 0 0.00% 0.00% 0.00% 0 COPS

107 385868 2177778 177 0.00% 0.00% 0.00% 0 CEF process

101 0 2 0 0.00% 0.00% 0.00% 0 PPP IP Route

109 0 1 0 0.00% 0.00% 0.00% 0 MRD

110 0 1 0 0.00% 0.00% 0.00% 0 IGMPSN

111 0 2 0 0.00% 0.00% 0.00% 0 RLM groups Proce

112 0 2 0 0.00% 0.00% 0.00% 0 DDP

113 0 2 0 0.00% 0.00% 0.00% 0 SNMP Timers

114 4 2 2000 0.00% 0.00% 0.00% 0 SCTP Main Proces

115 0 1 0 0.00% 0.00% 0.00% 0 IUA Main Process

116 44956 1702018 26 0.00% 0.00% 0.00% 0 RUDPV1 Main Proc

117 0 1 0 0.00% 0.00% 0.00% 0 bsm_timers

118 12636 1702017 7 0.00% 0.00% 0.00% 0 bsm_xmt_proc

119 0 1 0 0.00% 0.00% 0.00% 0 CES Client SVC R

120 24920 3328139 7 0.00% 0.00% 0.00% 0 IP NAT Ager

121 0 2 0 0.00% 0.00% 0.00% 0 Dialer Forwarder

122 9864 28373 347 0.00% 0.00% 0.00% 0 IP Cache Ager

123 4308 28393 151 0.00% 0.00% 0.00% 0 Adj Manager

124 30476 56338 540 0.00% 0.00% 0.00% 0 HTTP CORE

125 0 33 0 0.00% 0.00% 0.00% 0 RARP Input

126 0 1 0 0.00% 0.00% 0.00% 0 PAD InCall

127 0 2 0 0.00% 0.00% 0.00% 0 X.25 Background

128 0 2 0 0.00% 0.00% 0.00% 0 PPP Bind

129 0 2 0 0.00% 0.00% 0.00% 0 PPP SSS

130 67080 17006612 3 0.00% 0.00% 0.00% 0 RBSCP Background

131 0 2 0 0.00% 0.00% 0.00% 0 Tag Input

132 2488 340578 7 0.00% 0.00% 0.00% 0 L2F management d

133 4 1 4000 0.00% 0.00% 0.00% 0 PPTP Mgmt

134 0 2 0 0.00% 0.00% 0.00% 0 PPTP Data

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

135 0 1 0 0.00% 0.00% 0.00% 0 Inspect Timer

136 0 1 0 0.00% 0.00% 0.00% 0 Onboard VPN Comm

137 36 5679 6 0.00% 0.00% 0.00% 0 Authentication P

138 0 1 0 0.00% 0.00% 0.00% 0 Auth-proxy AAA B

139 0 1 0 0.00% 0.00% 0.00% 0 IPS Timer

140 0 2 0 0.00% 0.00% 0.00% 0 SDEE Management

141 0 1 0 0.00% 0.00% 0.00% 0 IPv6 Inspect Tim

142 0 2 0 0.00% 0.00% 0.00% 0 URL filter proc

143 0 3 0 0.00% 0.00% 0.00% 0 Crypto HW Proc

144 632 68141 9 0.00% 0.00% 0.00% 0 CRM_CALL_UPDATE_

145 96 2 48000 0.00% 0.00% 0.00% 0 CCVPM_HDSPRM

146 5600 630378 8 0.00% 0.00% 0.00% 0 FLEX DSPRM MAIN

147 2368 630376 3 0.00% 0.00% 0.00% 0 FLEX DSP KEEPALI

148 0 4 0 0.00% 0.00% 0.00% 0 HDA DSPRM MAIN

149 0 3 0 0.00% 0.00% 0.00% 0 Crypto WUI

150 0 2 0 0.00% 0.00% 0.00% 0 ENABLE AAA

151 0 1 0 0.00% 0.00% 0.00% 0 EM Background Pr

152 0 1 0 0.00% 0.00% 0.00% 0 Key chain liveke

153 0 2 0 0.00% 0.00% 0.00% 0 LINE AAA

154 684 2618 261 0.00% 0.00% 0.00% 0 LOCAL AAA

156 0 2 0 0.00% 0.00% 0.00% 0 TPLUS

157 0 2 0 0.00% 0.00% 0.00% 0 VSP_MGR

158 0 1 0 0.00% 0.00% 0.00% 0 encrypt proc

159 790096 69403 11384 0.00% 0.00% 0.00% 0 Crypto Support

160 4 1 4000 0.00% 0.00% 0.00% 0 CCVPM_HTSP

161 0 2 0 0.00% 0.00% 0.00% 0 VPM_MWI_BACKGROU

162 0 1 0 0.00% 0.00% 0.00% 0 CCVPM_R2

163 20 1893 10 0.00% 0.00% 0.00% 0 FB/KS Log HouseK

164 0 1 0 0.00% 0.00% 0.00% 0 CCSWVOICE

166 0 1 0 0.00% 0.00% 0.00% 0 http client proc

167 0 1 0 0.00% 0.00% 0.00% 0 QOS_MODULE_MAIN

168 0 1 0 0.00% 0.00% 0.00% 0 RPMS_PROC_MAIN

169 0 1 0 0.00% 0.00% 0.00% 0 VoIP AAA

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

170 392 3989 98 0.00% 0.00% 0.00% 0 crypto engine pr

171 40 4 10000 0.00% 0.00% 0.00% 0 Crypto CA

172 0 1 0 0.00% 0.00% 0.00% 0 Crypto PKI-CRL

173 0 1 0 0.00% 0.00% 0.00% 0 Crypto SSL

174 300 1644 182 0.00% 0.00% 0.00% 0 Crypto ACL

175 0 1 0 0.00% 0.00% 0.00% 0 CRYPTO QoS proce

176 666252 118143 5639 0.00% 0.00% 0.00% 0 Crypto IKMP

177 4388 96314 45 0.00% 0.00% 0.00% 0 IPSEC key engine

178 0 1 0 0.00% 0.00% 0.00% 0 IPSEC manual key

179 8 8 1000 0.00% 0.00% 0.00% 0 Crypto PAS Proc

180 536 5782 92 0.00% 0.00% 0.00% 0 Crypto Delete Ma

181 0 2 0 0.00% 0.00% 0.00% 0 Key Proc

182 0 1 0 0.00% 0.00% 0.00% 0 PM Callback

183 370072 1186 312033 0.00% 0.00% 0.00% 0 crypto sw pk pro

184 0 1 0 0.00% 0.00% 0.00% 0 DATA Transfer Pr

185 0 1 0 0.00% 0.00% 0.00% 0 DATA Collector

186 32 78 410 0.00% 0.00% 0.00% 0 AAA SEND STOP EV

187 0 5 0 0.00% 0.00% 0.00% 0 EM Server

188 480 170320 2 0.00% 0.00% 0.00% 0 RMON Recycle Pro

189 0 2 0 0.00% 0.00% 0.00% 0 RMON Deferred Se

190 0 1 0 0.00% 0.00% 0.00% 0 Syslog Traps

191 128 2136 59 0.00% 0.00% 0.00% 0 IpSecMibTopN

192 4 2 2000 0.00% 0.00% 0.00% 0 VLAN Manager

193 19784 1701591 11 0.00% 0.00% 0.00% 0 trunk conditioni

194 0 1 0 0.00% 0.00% 0.00% 0 trunk conditioni

195 0 2 0 0.00% 0.00% 0.00% 0 EM Applet Direct

196 0 1 0 0.00% 0.00% 0.00% 0 VPDN Scal

198 9696 113592 85 0.00% 0.00% 0.00% 0 Net Input

199 13112 340580 38 0.00% 0.00% 0.00% 0 Compute load avg

108 0 2 0 0.00% 0.00% 0.00% 0 L2MM

201 0 1 0 0.00% 0.00% 0.00% 0 TCP Driver

202 0 1 0 0.00% 0.00% 0.00% 0 TCP Listener

203 2064 59056 34 0.00% 0.00% 0.00% 0 CEF Scanner

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

204 152 949 160 0.00% 0.00% 0.00% 0 SSH Event handle

205 0 1 0 0.00% 0.00% 0.00% 0 IP NAT WLAN

206 4428 66710 66 0.00% 0.00% 0.00% 0 IP VFR proc

207 0 2 0 0.00% 0.00% 0.00% 0 IP Flow Backgrou

208 28196 83210 338 0.00% 0.00% 0.00% 0 IP SNMP

209 8356 42033 198 0.00% 0.00% 0.00% 0 PDU DISPATCHER

210 33096 42036 787 0.00% 0.00% 0.00% 0 SNMP ENGINE

211 0 1 0 0.00% 0.00% 0.00% 0 SNMP ConfCopyPro

212 0 1 0 0.00% 0.00% 0.00% 0 SNMP Traps

213 26192 307846 85 0.00% 0.00% 0.00% 0 NAT MIB Helper

214 25572 1730027 14 0.00% 0.00% 0.00% 0 NTP

Leo Laohoo · ‎05-10-2011

And what IOS are you running?

WalterKlomp · ‎05-10-2011

Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.3(11)T6, RELEASE SOFTWARE (fc3)

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

Compiled Thu 02-Jun-05 20:32 by ccai

ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)

c2821 uptime is 2 weeks, 5 days, 17 hours, 30 minutes

System returned to ROM by reload at 17:39:31 SGT Thu Apr 21 2011

System restarted at 17:41:50 SGT Thu Apr 21 2011

System image file is "flash:c2800nm-advipservicesk9-mz.123-11.T6.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 2821 (revision 53.51) with 249856K/12288K bytes of memory.

Processor board ID FTX0928A2U9

2 Gigabit Ethernet interfaces

1 Serial(sync/async) interface

1 Virtual Private Network (VPN) Module

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

Leo Laohoo · ‎05-10-2011

Gawk! That's an old IOS.

Can you post the result of the command "sh proc cpu | ex 0.00" please?

WalterKlomp · ‎05-10-2011

c2821#sh proc cpu | ex 0.00

CPU utilization for five seconds: 50%/50%; one minute: 50%; five minutes: 46%

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

c2821#

Leo Laohoo · ‎05-10-2011

Have you tried upgrading your IOS?

shehzadtesleem · ‎05-10-2011

is it any IOS bugg, why its not showing the process which is utilizing it.

WalterKlomp · ‎05-10-2011

Indeed upgrading to 12.4.24 did not help at all...

Looks I have another skeleton router in my datacenter....

Grrr....

Until what is the 2921 rated ?

patrick.preuss · ‎05-28-2014

Because the CPU is doing Hardware handling.
(50%/50% ) cpu has 50 % load and this goes the interupts.

Kishore Chennupati · ‎05-10-2011

Walter,

Upgrading the IOS would be the first step I would look at and then check the cpu etc.

Regards

Kishore

WalterKlomp · ‎05-10-2011

I try that first... Will keep you posted on the progress...

Leo Laohoo · ‎05-10-2011

I have a 50/50 Mbps connection

Ok. This could be the suspect. The 2811 is rated for 61 mbps - half duplex, no encryption. Click on the link below:

Portable Product Sheets – Routing Performance

Marcus Johansson · ‎05-10-2011

Hi,

Im sorry to say that upgrading the ios on the box probably won't help you much.

I have also tried a 2811 for voice and it pretty much maxed out the cpu at around 5mbit/s of voice.

Upgraded to the 2921 instead, now running about 11mbit/s voice traffic with a cpu load of around 25%, it's really quite silly how much cpu is consumed by routing/nat:ing voip traffic.

WalterKlomp · ‎05-10-2011

Indeed, upgrading to 12.4.24 did not help at all... I get some more processor output, but performance does not seem to be improved...

Anything I can improve on the performance until I get my new router? (I am looking at 2921 or 2951)

I already removed the nbar recovery and Qos (I figure I do not need that with plenty of bandwidth to go)

also removing ip verify unicast reverse-path gives a about 8% less CPU load...

interface GigabitEthernet0/0

description $ETH-LAN$$FW_INSIDE$

no ip redirects

no ip unreachables

no ip proxy-arp

ip flow ingress

ip nat inside

ip virtual-reassembly

ip route-cache same-interface

no ip mroute-cache

duplex full

speed 100

no cdp enable

no mop enabled

hold-queue 100 out

!

interface GigabitEthernet0/1

description $FW_OUTSIDE$

bandwidth 50000

ip access-group 106 in

no ip redirects

no ip unreachables

no ip proxy-arp

ip flow ingress

ip nat outside

ip virtual-reassembly

ip route-cache same-interface

ip route-cache policy

no ip mroute-cache

duplex full

speed 100

no cdp enable

no mop enabled

crypto map SDM_CMAP_1

paolo bevilacqua · ‎05-11-2011

Have ip flow on a single interface, not both.

Disable "virtual-reassembly".