Hi.
I've some trouble with a C2950 and my monitoring on Centreon.
The check on this switch report that Memory 'Processor" usage is up to 3.49MB for 3.75MB total, 93.05%
INSWT253#show process memory
Total: 6142528, Used: 4546980, Free: 1595548
PID TTY Allocated Freed Holding Getbufs Retbufs Process
0 0 128444 5044 2154652 0 0 *Init*
0 0 888 801866184 888 0 0 *Sched*
0 0 709950612 812417808 204824 582308 0 *Dead*
1 0 7948 7948 6808 0 0 Chunk Manager
2 0 184 184 3808 0 0 Load Meter
3 0 20031668 71033004 6808 0 0 SpanTree Flush
4 0 184 184 6808 0 0 Next Page
5 0 0 152 6808 0 0 Check heaps
6 0 936319496 159211168 154720 442577552 149183556 Pool Manager
7 0 184 184 6808 0 0 Timers
8 0 2017852 1688712 542148 0 95472 Entity MIB API
9 0 0 0 6808 0 0 HC Counter Timer
10 0 3112 148 6956 780 0 ARP Input
11 0 0 85460172 6808 0 44333608 Net Input
12 0 0 0 6808 0 0 Critical Bkgnd
13 0 37484 0 13072 4420 0 Net Background
14 0 184 184 12808 0 0 Logger
15 0 184 1392 6808 0 0 TTY Background
16 0 0 0 9808 0 0 Per-Second Jobs
17 0 184 184 6808 0 0 Compute load avg
18 0 339912 0 6808 169116 0 Per-minute Jobs
19 0 0 0 6808 0 0 AggMgr Process
20 0 320 184 3944 0 0 Calhoun Storm Co
21 0 0 0 6808 0 0 Calhoun LED Proc
22 0 3839530940 3839530940 3808 0 0 Calhoun Statisti
23 0 30316 184 36940 0 0 HMATM Learn proc
24 0 314116 64220 33596 0 0 CalhounPM
25 0 184 184 6808 0 0 Link Status Proc
26 0 0 0 6808 0 0 CalhounInsIpopti
27 0 0 0 3808 0 0 Calhoun DHCP Sno
28 1 244812 179164 78536 0 0 SSH Process
29 0 0 0 6808 0 0 DHCP Snooping
30 0 73258204 72740800 13980 0 121508 IP Input
31 0 51436 249268 45868 0 108684 DTP Protocol
32 0 184 184 6808 0 0 Ethchnl
33 0 12860844 12293736 203052 98100 15100 VLAN Manager
34 0 184 184 6808 0 0 PI MATM Aging Pr
35 0 393480 20109592 400288 0 0 VMATM Callback
36 0 648220552 7904120 6960 4440764 4363760 Spanning Tree
37 0 412 184 7036 0 0 UDLD
38 0 152 0 6960 0 0 Port-Security
39 0 102182404 102153356 22240 0 0 DHCPD Receive
40 0 0 0 6808 0 0 HTTP Timer
41 0 0 0 6808 0 0 RARP Input
42 0 0 639912 12808 0 0 TCP Timer
43 0 907298912 0 14460 0 0 TCP Protocols
44 0 0 0 6808 0 0 Socket Timers
45 0 118936 568842160 111900 3640 0 L2MM
46 0 957292 2473444 13084 0 1070436 MRD
47 0 0 1042748 6808 0 478464 IGMPSN
48 0 0 11628 3808 0 5168 IGMP Snooping Pr
49 0 8934872 60876 3808 2348060 35548 IGMP Snooping Re
50 0 1077844 218813640 3808 283140 282867780 IP Multicast Dat
51 0 2720 184 9344 0 0 L2TRACE SERVER
52 0 184 184 6808 0 0 Cluster L2
53 0 0 0 6808 0 0 Cluster RARP
54 0 320 184 6944 0 0 Cluster Base
56 0 0 0 6808 0 0 DHCPD Timer
57 0 0 124 9808 0 0 Router Autoconf
58 0 2527386752 2538276056 9792 0 0 Key Proc
59 0 127964 106496 30276 0 0 Crypto CA
60 0 0 0 6808 0 0 Syslog Traps
61 0 184 184 6808 0 0 VTPMIB EDIT BUFF
62 0 194444 380620 21088 0 0 PM Callback
63 0 5228 11804 11852 0 0 VTP Trap Process
64 0 152 0 6960 0 0 DHCPD Database
65 0 184 184 3808 0 0 Calhoun EnvMon P
66 0 184 184 3808 0 0 STP STACK TOPOLO
67 0 184 184 3808 0 0 STP FAST TRANSIT
68 0 184 184 3808 0 0 STP STACK TOPOLO
69 0 184 184 3808 0 0 CSRT RAPID TRANS
71 0 18818904 7923360 6828 5040 0 SSH Event handle
72 0 0 0 6808 0 0 SNMP Timers
73 0 604963688 603157656 13480 1561784 0 IP SNMP
74 0 2589319820 0 12808 0 0 PDU DISPATCHER
75 0 4277486208 2571837432 14108 0 0 SNMP ENGINE
76 0 0 0 12808 0 0 SNMP ConfCopyPro
77 0 0 0 12808 0 0 SNMP Traps
78 0 0 0 6808 0 0 RADIUS
79 0 948 184 7572 0 0 NTP
80 0 149404 83408 6896 0 0 SpanTree Helper
4544220 Total
According to this post: https://community.cisco.com/t5/other-network-architecture-subjects/i-o-vs-proc-memory/td-p/284975
Dynamic random-access memory (DRAM) contains two types of memory:
- Primary, main, or processor memory, which is reserved for the CPU to execute Cisco IOS software and to hold the running configuration and routing tables.
- Shared, packet, or I/O memory, which buffers data transmitted or received by the router's network interfaces.
Before using Centreon we used Thruk and on this monitoring system I've not exactly the same error.
According to thruk the snmp report is
| Status Information: | Processor : 96%, I/O : 35%, Total used : 74% ; OK |
My questions are:
- According to the post linked previously, the Memory Processor is used to hold running configuration and execute IOS software, is that true ?
- Is it normal to have a Memory Processor so high ?
- Should I ask to the team that handle the Centreon Monitoring to change the SNMP request to focus on other memory than the Memory Processor as per exemple the I/O Memory
Before ask to the team that manage check on Centreon in my company, I want to be sure that High Memory Processor is not a real issue due to the fact that it's not used to manage data traffic
Regards
Thomas.
