cisco 1841 cpu high utilization and disconnect from network

[00u1ju8uz3ICdFFci5d7]

cisco 1841 Commands for troubleshooting high CPU Cisco 3900 Router randomly losing connection to the internet 

Dear friends 

this is kailash (phone:7871868200) mail: scadsystem2021@gmail.com

we have faced cisco router  1841 issue past two days. router disconnect frequently. as we checkin router cpu utilization is 98%.  i have changed the another one router  isco 1841 (same model) and configured but second router also have same issue .

please kindly help me to resolve the issue. my router show proc cpu sorted below and error msg also attached

scad#show processes cpu sorted
CPU utilization for five seconds: 99%/98%; one minute: 98%; five minutes: 94%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
52 484200 223562 2165 0.86% 4.13% 3.35% 0 IP Input

126 231148 14654 15773 0.39% 3.70% 4.58% 0 IP NAT Ager
10 267684 51250 5223 0.31% 0.02% 1.53% 0 ARP Input
43 932 3746 248 0.07% 0.00% 0.00% 0 PI MATM Aging Pr
35 248 42 5904 0.07% 0.01% 0.00% 194 Virtual Exec
5 6816 407 16746 0.00% 0.02% 0.03% 0 Pool Manager
6 0 2 0 0.00% 0.00% 0.00% 0 Timers
7 0 1 0 0.00% 0.00% 0.00% 0 OIR Handler
8 36 130 276 0.00% 0.00% 0.00% 0 Environmental mo
3 1564 234 6683 0.00% 0.08% 0.02% 0 Exec
4 4848 455 10654 0.00% 0.06% 0.05% 0 Check heaps
12 0 2 0 0.00% 0.00% 0.00% 0 AAA high-capacit
2 4632 769 6023 0.00% 0.02% 0.01% 0 Load Meter
14 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager
15 0 3 0 0.00% 0.00% 0.00% 0 DDR Timers
9 0 1 0 0.00% 0.00% 0.00% 0 Crash writer
11 0 2 0 0.00% 0.00% 0.00% 0 ATM Idle Timer
18 0 2 0 0.00% 0.00% 0.00% 0 Serial Backgroun
19 0 1 0 0.00% 0.00% 0.00% 0 RO Notify Timers
20 0 2 0 0.00% 0.00% 0.00% 0 SMART
13 0 1 0 0.00% 0.00% 0.00% 0 AAA_SERVER_DEADT
22 0 2 0 0.00% 0.00% 0.00% 0 Dialer event
23 0 1 0 0.00% 0.00% 0.00% 0 SERIAL A'detect
24 0 2 0 0.00% 0.00% 0.00% 0 XML Proxy Client
25 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd
1 10028 855 11728 0.00% 0.06% 0.08% 0 Chunk Manager
27 4 17 235 0.00% 0.00% 0.00% 0 Logger
28 1172 3744 313 0.00% 0.05% 0.01% 0 TTY Background
29 2404 3754 640 0.00% 0.02% 0.01% 0 Per-Second Jobs
31 0 1 0 0.00% 0.00% 0.00% 0 Inode Table Dest
16 0 2 0 0.00% 0.00% 0.00% 0 Entity MIB API
17 36 194 185 0.00% 0.00% 0.00% 0 HC Counter Timer
34 0 2 0 0.00% 0.00% 0.00% 0 Eswilp Storm Con
21 536 3747 143 0.00% 0.00% 0.00% 0 GraphIt
36 0 1 0 0.00% 0.00% 0.00% 0 dev_device_inser
37 0 1 0 0.00% 0.00% 0.00% 0 dev_device_remov
38 0 2 0 0.00% 0.00% 0.00% 0 SM Monitor
39 0 1 0 0.00% 0.00% 0.00% 0 IGMP Snooping Pr
40 0 1 0 0.00% 0.00% 0.00% 0 IGMP Snooping Re
41 0 1 0 0.00% 0.00% 0.00% 0 Platform Compact
42 8 130 61 0.00% 0.00% 0.00% 0 Call Management
26 688 694 991 0.00% 0.00% 0.00% 0 Net Background
44 0 2 0 0.00% 0.00% 0.00% 0 DTP Protocol
45 0 2 0 0.00% 0.00% 0.00% 0 dot1x
46 0 1 0 0.00% 0.00% 0.00% 0 L2X Data Daemon
47 0 2 0 0.00% 0.00% 0.00% 0 AAA Dictionary R
48 0 2 0 0.00% 0.00% 0.00% 0 AAA Server
49 0 1 0 0.00% 0.00% 0.00% 0 AAA ACCT Proc
50 0 1 0 0.00% 0.00% 0.00% 0 ACCT Periodic Pr
51 696 462 1506 0.00% 0.00% 0.01% 0 CDP Protocol
32 0 1 0 0.00% 0.00% 0.00% 0 AggMgr Process
53 0 1 0 0.00% 0.00% 0.00% 0 ICMP event handl
54 0 4 0 0.00% 0.00% 0.00% 0 TurboACL
55 0 2 0 0.00% 0.00% 0.00% 0 TurboACL chunk
56 4 9 444 0.00% 0.00% 0.00% 0 MOP Protocols
57 0 3 0 0.00% 0.00% 0.00% 0 PPP Hooks
59 0 1 0 0.00% 0.00% 0.00% 0 SSS Manager
60 84 513 163 0.00% 0.00% 0.00% 0 SSS Test Client
61 0 1 0 0.00% 0.00% 0.00% 0 SSS Feature Mana
62 3164 14505 218 0.00% 0.04% 0.06% 0 SSS Feature Time
63 0 1 0 0.00% 0.00% 0.00% 0 VPDN call manage
33 0 2 0 0.00% 0.00% 0.00% 0 ESWPPM
65 0 1 0 0.00% 0.00% 0.00% 0 L2X SSS manager
64 0 1 0 0.00% 0.00% 0.00% 0 L2X Socket proce
67 0 1 0 0.00% 0.00% 0.00% 0 X.25 Encaps Mana
68 272 83 3277 0.00% 0.00% 0.00% 0 IP Background
69 52 67 776 0.00% 0.00% 0.00% 0 IP RIB Update
70 0 2 0 0.00% 0.00% 0.00% 0 PPP IP Route
71 0 2 0 0.00% 0.00% 0.00% 0 PPP IPCP
72 4044 5157 784 0.00% 0.02% 0.05% 0 CEF process
73 1056 3846 274 0.00% 0.00% 0.00% 0 Socket Timers
74 0 2 0 0.00% 0.00% 0.00% 0 L2MM
75 0 1 0 0.00% 0.00% 0.00% 0 MRD
76 0 1 0 0.00% 0.00% 0.00% 0 IGMPSN
77 0 1 0 0.00% 0.00% 0.00% 0 SNMP Timers
78 4 2 2000 0.00% 0.00% 0.00% 0 SCTP Main Proces
79 0 1 0 0.00% 0.00% 0.00% 0 IUA Main Process
80 1328 3754 353 0.00% 0.00% 0.00% 0 RUDPV1 Main Proc
81 0 1 0 0.00% 0.00% 0.00% 0 bsm_timers
82 496 3750 132 0.00% 0.00% 0.00% 0 bsm_xmt_proc
83 828 1537 538 0.00% 0.01% 0.00% 0 TCP Timer
84 1264 256 4937 0.00% 0.00% 0.00% 0 TCP Protocols
85 0 1 0 0.00% 0.00% 0.00% 0 COPS
86 8316 8235 1009 0.00% 0.05% 0.07% 0 DHCPD Receive
87 0 2 0 0.00% 0.00% 0.00% 0 Dialer Forwarder
88 432 65 6646 0.00% 0.01% 0.00% 0 IP Cache Ager
89 352 66 5333 0.00% 0.00% 0.00% 0 Adj Manager
90 1332 129 10325 0.00% 0.00% 0.00% 0 HTTP CORE
91 0 1 0 0.00% 0.00% 0.00% 0 IP Traceroute
92 0 1 0 0.00% 0.00% 0.00% 0 RARP Input
93 0 1 0 0.00% 0.00% 0.00% 0 PAD InCall
94 0 2 0 0.00% 0.00% 0.00% 0 X.25 Background
95 0 2 0 0.00% 0.00% 0.00% 0 PPP Bind
96 0 2 0 0.00% 0.00% 0.00% 0 PPP SSS
97 56 768 72 0.00% 0.00% 0.00% 0 L2F management d
98 8 1 8000 0.00% 0.00% 0.00% 0 PPTP Mgmt
99 0 2 0 0.00% 0.00% 0.00% 0 PPTP Data
100 92 156 589 0.00% 0.00% 0.00% 0 CRM_CALL_UPDATE_
101 0 2 0 0.00% 0.00% 0.00% 0 ENABLE AAA
102 0 1 0 0.00% 0.00% 0.00% 0 EM Background Pr
103 0 1 0 0.00% 0.00% 0.00% 0 Key chain liveke
104 0 2 0 0.00% 0.00% 0.00% 0 LINE AAA
105 0 2 0 0.00% 0.00% 0.00% 0 LOCAL AAA
106 0 2 0 0.00% 0.00% 0.00% 0 TPLUS
107 0 1 0 0.00% 0.00% 0.00% 0 PM Callback
108 16 33 484 0.00% 0.00% 0.00% 0 DHCPD Timer
109 0 2 0 0.00% 0.00% 0.00% 0 AAA SEND STOP EV
111 68 386 176 0.00% 0.00% 0.00% 0 RMON Recycle Pro
112 0 2 0 0.00% 0.00% 0.00% 0 RMON Deferred Se
113 0 1 0 0.00% 0.00% 0.00% 0 Syslog Traps
114 8 2 4000 0.00% 0.00% 0.00% 0 VLAN Manager
115 4 9 444 0.00% 0.00% 0.00% 0 Syslog
116 0 1 0 0.00% 0.00% 0.00% 0 VPDN Scal
117 12 70 171 0.00% 0.00% 0.00% 0 DHCPD Database
118 4 24 166 0.00% 0.00% 0.00% 0 Net Input
119 840 771 1089 0.00% 0.00% 0.00% 0 Compute load avg
120 2224 69 32231 0.00% 0.01% 0.00% 0 Per-minute Jobs
121 0 1 0 0.00% 0.00% 0.00% 0 TCP Driver
122 0 1 0 0.00% 0.00% 0.00% 0 TCP Listener
123 44 134 328 0.00% 0.00% 0.00% 0 CEF Scanner
124 0 1 0 0.00% 0.00% 0.00% 0 tHUB
125 0 2 0 0.00% 0.00% 0.00% 0 tENM
66 0 2 0 0.00% 0.00% 0.00% 0 L2TP mgmt daemon
127 0 1 0 0.00% 0.00% 0.00% 0 IP NAT WLAN
128 636 1275 498 0.00% 0.00% 0.00% 0 DNS Server
129 0 3 0 0.00% 0.00% 0.00% 0 DNS Server Input
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*Jan 1 01:07:13.743: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 187476 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:07:13.743: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat globaltr. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:07:23.915: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat node. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:07:34.043: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat node. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:07:43.807: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 186660 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:07:44.135: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat node. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:07:54.283: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:07:56.527: %DNSSERVER-3-TOOSHORT: DNS query from 10.0.2.42 too short
*Jan 1 01:08:04.295: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:08:12.435: %DNSSERVER-3-TOOSHORT: DNS query from 10.0.2.42 too short
*Jan 1 01:08:13.819: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 177916 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:08:14.299: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:08:14.463: %DNSSERVER-3-TOOSHORT: DNS query from 10.0.2.42 too short
*Jan 1 01:08:16.011: %DNSSERVER-3-TOOSHORT: DNS query from 10.0.2.42 too short
*Jan 1 01:08:18.695: %DNSSERVER-3-TOOSHORT: DNS query from 10.0.2.42 too short
*Jan 1 01:08:24.387: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:08:34.407: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:08:43.875: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 127104 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:08:44.439: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:08:54.443: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:04.443: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:13.955: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 103352 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:09:14.607: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:24.743: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:34.771: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:44.019: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 79856 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "IP Input", ipl= 3, pid= 52
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D7A4 0x6020FCAC 0x6020D648 0x60D32E94 0x60D33204 0x60D33F10 0x60D4EFD4 0x60D4AF5C 0x60BDEBEC 0x60BDD3A8 0x60BDD678 0x60BDD734
*Jan 1 01:09:44.787: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:09:54.891: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:05.003: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:14.079: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 113876 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "IP Input", ipl= 3, pid= 52
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D7A4 0x6020FCAC 0x6020D648 0x60D32E94 0x60D33204 0x60D33F10 0x60D4EFD4 0x60D4AF5C 0x60BDEBEC 0x60BDD3A8 0x60BDD678 0x60BDD734
*Jan 1 01:10:15.019: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:25.019: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:35.191: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:44.087: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 79676 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "IP Input", ipl= 3, pid= 52
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D7A4 0x6020FCAC 0x6020D648 0x60D32E94 0x60D33204 0x60D33F10 0x60D4EFD4 0x60D4AF5C 0x60BDEBEC 0x60BDD3A8 0x60BDD678 0x60BDD734
*Jan 1 01:10:45.223: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:10:55.227: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:05.331: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:14.103: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 106300 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:11:15.359: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:25.447: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:35.539: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:44.119: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 79852 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:11:45.567: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:11:52.239: %DHCPD-4-PING_CONFLICT: DHCP address conflict: server pinged 10.0.2.60.
*Jan 1 01:11:55.647: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:05.683: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:14.119: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 93620 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D6DC 0x6020D4C0
*Jan 1 01:12:15.687: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:25.731: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:35.739: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:44.167: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x6020E534, alignment 8
Pool: Processor Free: 79976 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "IP Input", ipl= 3, pid= 52
-Traceback= 0x608CE204 0x601F0B40 0x601F5BDC 0x6020E53C 0x6020D7A4 0x6020FCAC 0x6020D648 0x60D32E94 0x60D33204 0x60D33F10 0x60D4EFD4 0x60D4AF5C 0x60BDEBEC 0x60BDD3A8 0x60BDD678 0x60BDD734
*Jan 1 01:12:45.851: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:55.851: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for NAT Port Range. No memory available
-Process= "Chunk Manager", ipl= 3, pid= 1
-Traceback= 0x608CE204 0x6020D504
*Jan 1 01:12:59.531: %FIB-3-NOMEM: Malloc Failure, disabling CEF
-Traceback= 0x608CE204 0x60689080 0x60A83AC4 0x60BFBDC8 0x60BFE44C 0x60DEB834 0x60DEAA2C 0x6099226C 0x60989F54 0x6099B108 0x6099B2B8 0x6099B690 0x6099C808 0x6098AF1C 0x6098B088 0x6098B4B4

[Leo Laohoo]

High CPU is due to memory leak/memory fragmentation. 

Reboot the router is the workaround.

[00u1ju8uz3ICdFFci5d7]

thank you for replied me.. i have tried but again after 30 min the same issue continued

[00u1ju8uz3ICdFFci5d7]

please suggest permenent solution .

[Leo Laohoo]

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@00u1ju8uz3ICdFFci5d7 wrote:

1 0 64816088 3005364 61831204 0 0 Chunk Manager

---

Add the two green values and the total is the RED value. 

This means when the memory drops any further from 3005364 the router will crash. 

Permanent solution is to stop using the 1800 router to do NAT plus overwhelming the WAN link.  

[00u1ju8uz3ICdFFci5d7]

without nat is possible to connect internet ..???

[Leo Laohoo]

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@00u1ju8uz3ICdFFci5d7 wrote:

without nat is possible to connect internet ..???

---

What is the WAN link for the 1800 router?

Post the complete output to the command "sh version".

[00u1ju8uz3ICdFFci5d7]

wan 100 mbps 

[Umesh Shetty]

I think it is disrespectful to laugh out at a question. It is obvious that the person does not know the right way and he has reached out to the community to help

[Umesh Shetty]

Kailash, 

100 mbps is too high with NAT enabled for the 1841 to handle. You should go for a bigger router. In case you need some guidance on router selection please do reach out

[00u1ju8uz3ICdFFci5d7]

your suggestion is correct but that same 1841 router is worked fine in past 1 year. how is possible

[00u1ju8uz3ICdFFci5d7]

same router same wan 100mbps is workied fine in last 1yr. suddenly got problem

[Leo Laohoo]

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@00u1ju8uz3ICdFFci5d7 wrote:

same router same wan 100mbps is workied fine in last 1yr. suddenly got problem

---

I do not believe an 1841 router is capable of hitting 100 80 Mbps even with a "clean" config.  

[00u1ju8uz3ICdFFci5d7]

scad#show proc mem sorted
Processor Pool Total: 77750528 Used: 77026912 Free: 723616
I/O Pool Total: 16777216 Used: 4520320 Free: 12256896

PID TTY Allocated Freed Holding Getbufs Retbufs Process
1 0 64816088 3005364 61831204 0 0 Chunk Manager
0 0 28342256 8600520 16628572 0 0 *Init*
0 0 4161160 3143800 657896 164300 3120 *Dead*
5 0 9158388 1877736 412680 2074700 402480 Pool Manager
98 0 218356 0 211376 0 0 PPTP Mgmt
128 0 199520 0 204668 0 0 DNS Server
52 0 7058480 419328 200472 1253980 22100 IP Input
86 0 131548 5460 125868 0 0 DHCPD Receive
16 0 67896 0 74876 0 0 Entity MIB API
72 0 73844 0 73844 0 0 CEF process
124 0 196 0 25176 0 0 tHUB
9 0 0 0 24980 0 0 Crash writer
85 0 0 0 24980 0 0 COPS
10 0 14552 12796228 21532 0 2710240 ARP Input
3 0 43344 38868 17484 0 0 Exec
114 0 9152 1508 14468 0 0 VLAN Manager
26 0 90668 0 13496 14820 0 Net Background
90 0 1327652 1324428 13204 0 0 HTTP CORE
125 0 392 196 13176 0 0 tENM
7 0 0 0 12980 0 0 OIR Handler
14 0 0 0 12980 0 0 Policy Manager
65 0 0 0 12980 0 0 L2X SSS manager
64 0 0 0 12980 0 0 L2X Socket proce
99 0 196 196 12980 0 0 PPTP Data
22 0 196 196 12980 0 0 Dialer event
97 0 0 0 12980 0 0 L2F management d
24 0 196 196 12980 0 0 XML Proxy Client
94 0 196 196 12980 0 0 X.25 Background
84 0 7126876 121200 12980 0 0 TCP Protocols
27 0 196 196 12980 0 0 Logger
83 0 32744 206220 12980 7020 2340 TCP Timer
70 0 196 196 12980 0 0 PPP IP Route
115 0 26908 26908 12980 0 0 Syslog
71 0 196 196 12980 0 0 PPP IPCP
121 0 0 0 12980 0 0 TCP Driver
63 0 0 0 12980 0 0 VPDN call manage
60 0 0 0 12980 0 0 SSS Test Client
46 0 0 0 12980 0 0 L2X Data Daemon
66 0 196 196 12980 0 0 L2TP mgmt daemon
57 0 392 392 12980 0 0 PPP Hooks
59 0 0 0 12980 0 0 SSS Manager
56 0 5368 196 12152 2268 0 MOP Protocols
0 0 12128 9661568 12128 0 0 *Sched*
29 0 1848 1848 10676 0 0 Per-Second Jobs
69 0 164 0 10144 0 0 IP RIB Update
4 0 3348 1088 10132 0 0 Check heaps
68 0 76 28828 10056 0 0 IP Background
89 0 196 196 9980 0 0 Adj Manager
44 0 2444 196 9228 0 0 DTP Protocol
51 0 1104 196 7888 0 0 CDP Protocol
106 0 956 196 7740 0 0 TPLUS
74 0 492 156 7472 0 0 L2MM
129 0 2308 1900 7388 0 0 DNS Server Input
117 0 196 0 7176 0 0 DHCPD Database
123 0 164 0 7144 0 0 CEF Scanner
28 0 52720 608 7104 0 0 TTY Background
108 0 0 1392 7004 0 0 DHCPD Timer
45 0 196 196 6980 0 0 dot1x
43 0 196 196 6980 0 0 PI MATM Aging Pr
42 0 196 196 6980 0 0 Call Management
61 0 0 0 6980 0 0 SSS Feature Mana
62 0 0 0 6980 0 0 SSS Feature Time
41 0 0 0 6980 0 0 Platform Compact
55 0 196 196 6980 0 0 TurboACL chunk
54 0 196 196 6980 0 0 TurboACL
38 0 196 196 6980 0 0 SM Monitor
67 0 0 0 6980 0 0 X.25 Encaps Mana
53 0 0 0 6980 0 0 ICMP event handl
18 0 196 196 6980 0 0 Serial Backgroun
33 0 196 196 6980 0 0 ESWPPM
32 0 0 0 6980 0 0 AggMgr Process
15 0 196 196 6980 0 0 DDR Timers
73 0 0 0 6980 0 0 Socket Timers
50 0 0 0 6980 0 0 ACCT Periodic Pr
75 0 0 0 6980 0 0 MRD
49 0 0 0 6980 0 0 AAA ACCT Proc
48 0 196 196 6980 0 0 AAA Server
78 0 196 196 6980 0 0 SCTP Main Proces
79 0 0 0 6980 0 0 IUA Main Process
80 0 196 196 6980 0 0 RUDPV1 Main Proc
81 0 0 0 6980 0 0 bsm_timers
82 0 0 0 6980 0 0 bsm_xmt_proc
47 0 196 196 6980 0 0 AAA Dictionary R
19 0 0 0 6980 0 0 RO Notify Timers
13 0 0 0 6980 0 0 AAA_SERVER_DEADT
12 0 196 196 6980 0 0 AAA high-capacit
87 0 196 196 6980 0 0 Dialer Forwarder
88 0 0 224256 6980 0 0 IP Cache Ager
77 0 0 0 6980 0 0 SNMP Timers
11 0 196 196 6980 0 0 ATM Idle Timer
91 0 0 0 6980 0 0 IP Traceroute
92 0 0 0 6980 0 0 RARP Input
93 0 0 0 6980 0 0 PAD InCall
25 0 0 0 6980 0 0 Critical Bkgnd
95 0 196 196 6980 0 0 PPP Bind
96 0 196 196 6980 0 0 PPP SSS
23 0 0 0 6980 0 0 SERIAL A'detect
8 0 196 196 6980 0 0 Environmental mo
21 0 196 196 6980 0 0 GraphIt
100 0 196 196 6980 0 0 CRM_CALL_UPDATE_
101 0 196 196 6980 0 0 ENABLE AAA
102 0 0 0 6980 0 0 EM Background Pr
103 0 0 0 6980 0 0 Key chain liveke
104 0 196 196 6980 0 0 LINE AAA
105 0 196 196 6980 0 0 LOCAL AAA
17 0 0 0 6980 0 0 HC Counter Timer
107 0 0 0 6980 0 0 PM Callback
20 0 196 196 6980 0 0 SMART
109 0 196 196 6980 0 0 AAA SEND STOP EV
111 0 196 196 6980 0 0 RMON Recycle Pro
112 0 196 196 6980 0 0 RMON Deferred Se
113 0 0 0 6980 0 0 Syslog Traps
6 0 196 196 6980 0 0 Timers
76 0 0 0 6980 0 0 IGMPSN
116 0 0 0 6980 0 0 VPDN Scal
122 0 0 0 6980 0 0 TCP Listener
118 0 0 0 6980 0 0 Net Input
119 0 196 196 6980 0 0 Compute load avg
120 0 1212 852 6980 260 0 Per-minute Jobs
127 0 0 0 6980 0 0 IP NAT WLAN
126 0 196 196 6980 0 0 IP NAT Ager
34 0 356 196 4140 0 0 Eswilp Storm Con
40 0 0 0 3980 0 0 IGMP Snooping Re
2 0 196 196 3980 0 0 Load Meter
39 0 0 0 3980 0 0 IGMP Snooping Pr
36 0 0 0 3980 0 0 dev_device_inser
37 0 0 0 3980 0 0 dev_device_remov
31 0 0 0 3980 0 0 Inode Table Dest
81493664 Total

[marce1000]

 - Check current software version on the device , use or upgrade to an advisory release , if applicable , check if that can help.

 M.