Cisco processes and load
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This page provides how to get general info about your Cisco device.
Processes
ap3#show processes cpu CPU utilization for five seconds: 0%/0%; one minute: 1%; five minutes: 18% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 1 76 1464 51 0.00% 0.00% 0.00% 0 Chunk Manager 2 8 68954 0 0.00% 0.00% 0.00% 0 Load Meter 3 196 266 736 0.15% 0.17% 0.05% 1 SSH Process 4 0 1 0 0.00% 0.00% 0.00% 0 RO Notify Timers 5 841172 81225 10356 0.00% 0.16% 0.21% 0 Check heaps 6 0 38 0 0.00% 0.00% 0.00% 0 Pool Manager 7 0 1 0 0.00% 0.00% 0.00% 0 DiscardQ Backgro 8 0 2 0 0.00% 0.00% 0.00% 0 Timers 9 0 62 0 0.00% 0.00% 0.00% 0 WATCH_AFS 10 0 1 0 0.00% 0.00% 0.00% 0 AAA_SERVER_DEADT 11 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 12 0 1 0 0.00% 0.00% 0.00% 0 Crash writer 13 0 1 0 0.00% 0.00% 0.00% 0 Exception contro 14 4 10759 0 0.00% 0.00% 0.00% 0 SNTP 15 0 1 0 0.00% 0.00% 0.00% 0 RMI RM Notify Wa 17 0 1 0 0.00% 0.00% 0.00% 0 Net Input 18 4 53 75 0.00% 0.00% 0.00% 0 ARP Input 19 0 359613 0 0.00% 0.00% 0.00% 0 ARP Background 20 0 2 0 0.00% 0.00% 0.00% 0 Entity MIB API 21 0 1 0 0.00% 0.00% 0.00% 0 CEF MIB API 22 0 3 0 0.00% 0.00% 0.00% 0 PrstVbl 23 0 344764 0 0.00% 0.00% 0.00% 0 GraphIt PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 24 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd 25 4 103457 0 0.00% 0.00% 0.00% 0 Net Background 26 0 8626 0 0.00% 0.00% 0.00% 0 IDB Work 27 2664 28191 94 0.00% 0.00% 0.17% 0 Logger 28 202052 18128190 11 0.00% 1.34% 17.43% 0 TTY Background 29 0 4 0 0.00% 0.00% 0.00% 0 IF-MGR control p 30 0 12 0 0.00% 0.00% 0.00% 0 IF-MGR event pro 31 0 3 0 0.00% 0.00% 0.00% 0 Transport Port A
A line with PID 28 shows high cpu utilization 17.43% 0 TTY Background due to ssh debugging on and terminal monitor enabled on ssh console.
CPU history graph
ap3#show processes cpu history
ap3 09:58:02 AM Sunday Nov 10 2013 UTC
22222
100
90
80
70
60
50
40
30
20
10
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per second (last 60 seconds)
668777
22223015665 322222222222212222 22212222212222222222222222 22
100
90 *
80 ****
70 **#*
60 *####*
50 *#####
40 *#####
30 *#####
20 ######
10 ######
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
222322222733222444789887553233323232745886776555553724322377235645644447
100
90
80
70
60
50
40
30
20
10 * ******** * ************ * ** ** ** *
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7..
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
- Enable %CPU utilization history table
Sets the process entry limit and the size of the history table for CPU utilization statistics. •In this example, to generate an entry in the history table, a process must exceed 10 percent CPU utilization. •In this example, the duration of time for which the most recent history is saved in the history table is 300 seconds.
r1(config)#process cpu statistics limit entry-percentage 10 size 300 r1#sh proc cpu history table CPU utilization for five seconds: 11%/5% at 25w3d CPU utilization for five seconds: 12%/5% at 25w3d CPU utilization for five seconds: 8%/1% at 25w3d
Network connections
Open tcp/udp ports
r1#show control-plane host open-ports Active internet connections (servers and established) Prot Local Address Foreign Address Service State tcp *:22 *:0 SSH-Server LISTEN tcp *:22 93.96.111.222:59875 SSH-Server ESTABLIS tcp *:23 *:0 Telnet LISTEN tcp *:53 *:0 DNS Server LISTEN udp *:58093 *:0 IP SNMP LISTEN udp *:53 *:0 DNS Server LISTEN udp *:67 *:0 DHCPD Receive LISTEN udp *:161 *:0 IP SNMP LISTEN udp *:162 *:0 IP SNMP LISTEN
TCP established connections
r1#show tcp brief
TCB Local Address Foreign Address (state)
2AABFEA4 host81-133-111.222.in-addr.93-96-111.222.zone4.bethere ESTAB
btopenworld.com.22 .co.uk.59875
UDP all connections
r1#show udp Proto Remote Port Local Port In Out Stat TTY OutputIF 17 10.0.10.89 18980 81.133.111.222 53 0 0 1000211 0 17 10.0.10.53 68 10.0.99.100 67 0 0 1002211 0 17 --listen-- 81.133.111.222 161 0 0 1001001 0 17 --listen-- 81.133.111.222 162 0 0 1001011 0 17 --listen-- 81.133.111.222 58093 0 0 1001011 0 17(v6) --listen-- --any-- 161 0 0 1020001 0 17(v6) --listen-- --any-- 162 0 0 1020011 0 17(v6) --listen-- --any-- 59325 0 0 1020011 0
NAT translations
r1#show ip nat nvi translations Pro Source global Source local Destin local Destin global tcp 81.133.111.222:64625 10.0.10.33:64625 178.33.44.55:443 178.33.44.55:443 tcp 81.133.111.222:49220 10.0.10.38:49220 178.33.44.55:443 178.33.44.55:443 tcp 81.133.111.222:54938 10.0.10.44:54938 178.33.44.55:443 178.33.44.55:443 tcp 81.133.111.222:61214 10.0.10.46:61214 178.33.44.55:443 178.33.44.55:443 tcp 81.133.111.222:49163 10.0.10.47:49163 64.4.18.55:80 64.4.18.55:80
Other show commands
show ip port-map is showing the current port mapping on your Cisco device
#show ip port-map Default mapping: snmp udp port 161 system defined Default mapping: echo tcp port 7 system defined Default mapping: echo udp port 7 system defined Default mapping: telnet tcp port 23 system defined Default mapping: wins tcp port 1512 system defined
show ip cache flow show ip traffic
DNS translations
To display the default domain name, the style of name lookup service, a list of name server hosts, and the cached list of hostnames and addresses specific to a particular Domain Name System (DNS) view or for all configured DNS views. The show hosts command lists the name servers and their corresponding IP addresses. It also lists the hostnames, their corresponding IP addresses, and their corresponding aliases (if applicable) in a host table summary.
r1#show hosts
Default domain is home.geteway
Name/address lookup uses domain service
Name servers are 62.6.11.111, 194.72.22.222
Codes: UN - unknown, EX - expired, OK - OK, ?? - revalidate
temp - temporary, perm - permanent
NA - Not Applicable None - Not defined
Host Port Flags Age Type Address(es)
bbc.co.uk None (temp, OK) 0 IP 212.58.253.67
212.58.251.195
host81-133-111-222.in-add None (temp, OK) 0 IP 81.133.111.222
l.doubleclick.net NA (temp, EX) 12 SOA ns1.google.com dns-admin.google.com
1537818 21600 3600 1209600 300
Host Port Flags Age Type Address(es)
nsatc.net NA (temp, EX) 24 SOA admin.nsatc.net dl-cdn_infrastructure.level3.com
1363134183 10800 2700 3600000 900
Access point
This section is based on Cisco AIR-SAP1602E-E however the troubleshooting commands used should work on any other platform with minimum IOS version 15.
ap1#show dot11 ? aaa Authentication, Authorization, and Accounting activity-timeout Default/Maximum activity timeout values adjacent-ap Display Fast Secure Roaming adjacent AP list antenna-alignment Display recent antenna alignment results arp-cache Arp Cache associations association information band-select Display band select output bssid show SSID to BSSID mapping cac Admission Control Statistics carrier Display recent carrier test results directed-roam Directed Roaming Clients/APs ids Intrusion Detection System lbs Display LBS configuration and status linktest Display recent linktest results mac-authen MAC authentication details neighbor-ap Display neighbor ap network-map Network Map offchannel Dot11 RM Offchannel statistics statistics information traffic-streams Admitted WMM Traffic-Streams vlan-name Display VLAN name to ID map(s)
- Show connected clients
show dot11 associations 802.11 Client Stations on Dot11Radio0: SSID [WL-Wireless] : MAC Address IP address Device Name Parent State 6817.1122.aa5d 10.0.10.100 ccx-client ap1 self Assoc 6c88.2233.bb30 10.0.10.119 ccx-client ap1 self Assoc 6c88.3344.cc28 10.0.10.131 ccx-client ap1 self Assoc 6c88.5566.ddf8 10.0.10.118 ccx-client ap1 self Assoc
- Show SSID to MAC address (BSSID) mapping
show dot11 bssid Interface BSSID Guest SSID Dot11Radio0 e8ed.f3dd.aa30 No WL-MGM Dot11Radio0 e8ed.f3dd.aa31 Yes WL-WIRELESS