The Adtran community holiday season is starting next week! The holiday period will span from December 21, 2024 to January 6, 2025. During this time, responses to feedback form submissions may be delayed. If you are encountering product issues, you can reach out to Adtran support at any time.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Anonymous
Not applicable

Adtran 3448 with 98% to 100% CPU Utilization

Jump to solution

I have a 3448 that is running a high cpu utilization:

System load: 1sec:99.40%  1min:100.00%  5min:99.26%  Min: 0.00%  Max: 100.00%

Context switch load: 0.68%

                                      Invoked  Exec Time    Runtime    Load %%

Task Id    Task Name        PRI STA   (count)     (usec)     (usec)     (1sec)

1          Idle               0 W   147427119        486          0       0.00

3          PC Config          7 S    63001176        520      74241       7.42

4          PacketRouting     44 W   2755530024         10     441509      44.15

5          Timer             46 W   1175549823         13      16243       1.62

6          Thread Pool        4 R      756721        143       1321       0.13

7          Timer-00          10 W   185727222          2        468       0.05

8          Nm01               5 W           0     535588          0       0.00

9          Clock              9 W     2754307         18          0       0.00

10         FrontPanel        43 W    24652721        115       2236       0.22

11         con0              46 W      253366         11          0       0.00

12         Flash Maintena~    4 W      123721        426          0       0.00

13         CF Manager         9 W     1536594          5          5       0.00

14         ICP Session        8 W      114217         10          0       0.00

15         RSTP              43 W    12030582        107       1057       0.11

16         RSTP-BG           42 W          28        532          0       0.00

17         MLD Thread         6 W           4          8          0       0.00

18         RouteTableTick     6 W     1135063         90         90       0.01

19         RouteTableTick     6 W     1103853         10         10       0.00

20         IGMPTick           6 W      794737         40         40       0.00

21         IGMP-Receiver      6 W           0    4059757          0       0.00

22         IP Events         27 W     1491115         34         72       0.01

23         tcptimer          25 W      272549          7         97       0.01

24         tcpinp            25 W      721696        111        783       0.08

25         tcpout            25 W     1131114         63        873       0.09

26         DnsClient         19 W      855535         30          0       0.00

27         DnsProxy          19 W   2216031396         80     251189      25.12

28         DnsTable          19 W      223970         28          0       0.00

29         Port Manager       9 W     7715017         47        244       0.02

30         eth01             46 W   1582827099          4      73447       7.34

31         eth02             46 W    19781916         69       7759       0.78

32         SnmpThread         6 W    11339105          9         30       0.00

33         WWW               22 W     1454963         57          0       0.00

34         SEC               46 W      116244         25          0       0.00

35         IKE                6 W       68769          9          0       0.00

36         IPSecKeyGen        4 W           0     324320          0       0.00

37         SCEP               6 W           0     322274          0       0.00

38         MediaConnectio~   39 W     2437229          2        920       0.09

39         FTPServer List~    5 W           1         37          0       0.00

40         SMTP Client       19 W           0         72          0       0.00

41         SNTP Client       22 W          13         22          0       0.00

42         Switch Managem~   43 W           0         75          0       0.00

43         Switch Mainten~    4 R    11026501          5      49350       4.94

44         Stacking           9 W      973859         52          0       0.00

45         FCC2              46 W    11990717          8         35       0.00

46         CLIInjectQ         6 W           0      59395          0       0.00

49         RipOut             6 W      758577          7          7       0.00

50         RipIn              6 W          51         41          0       0.00

51         poe0              46 W     7658708         12         54       0.01

52         PwrOvrEth          9 W    28021881          4        199       0.02

53         UDP Relay         22 W           1        105          0       0.00

54         DHCP Server       34 W         838         38          0       0.00

55         CFM Maint         44 W     1122159         37         37       0.00

56         AUTOLINKQ          4 W      427584        323          0       0.00

57         HttpClientQ        6 W        2695         84          0       0.00

58         SIP_Stack         38 W      341702         74        128       0.01

59         ntpd              22 W     2385208         86         86       0.01

60         RvSipProc0        39 W      123158        117          0       0.00

62         DHCPv6            34 W           0        433          0       0.00

63         PacketCapture      4 R     1183956         27         53       0.01

64         Flow Meter Log~   20 W     1496705         38         38       0.00

65         OSPF               6 W           0     154730          0       0.00

66         OSPFv3             6 W           0      45481          0       0.00

67         TWAMP-Control      6 W           0      28707          0       0.00

68         TWAMP-Test        19 W           1         13          0       0.00

69         UDP In            42 W   718556243         75      71356       7.14

0 Kudos
1 Solution

Accepted Solutions
jayh
Honored Contributor
Honored Contributor

Re: Adtran 3448 with 98% to 100% CPU Utilization

Jump to solution

Your top CPU hogs are packet routing, DNS proxy and UDP in. Look for a host on the inside acting as part of a botnet involved in a DDoS attack, or configured as a resolver and open to the public.

"show ip policy-sessions" will possibly give a clue. Look for dozens or hundreds of UDP connections that aren't serving a business purpose.

View solution in original post

0 Kudos
1 Reply
jayh
Honored Contributor
Honored Contributor

Re: Adtran 3448 with 98% to 100% CPU Utilization

Jump to solution

Your top CPU hogs are packet routing, DNS proxy and UDP in. Look for a host on the inside acting as part of a botnet involved in a DDoS attack, or configured as a resolver and open to the public.

"show ip policy-sessions" will possibly give a clue. Look for dozens or hundreds of UDP connections that aren't serving a business purpose.

0 Kudos