"CEF Process" causing OSPF issues?

Unanswered Question
Jan 12th, 2009

Our router keeps flapping with it's OSPF neighbor. I think it may be due to the CEF process. Doesn't this look high to you? Looks like this for about 30 seconds of every minute.

DTR01AHVLNC#show proc cpu | ex 0.0

CPU utilization for five seconds: 70%/24%; one minute: 28%; five minutes: 26%

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

5 117827220 7897405 14919 2.39% 0.81% 0.89% 0 Check heaps

170 549950564 55202349 9962 36.39% 9.32% 9.06% 0 CEF process ?-------------

173 357275592 38460756 9289 5.67% 1.57% 1.53% 0 L3 Manager

312 13051044 51925865 251 0.23% 0.12% 0.15% 0 SNMP ENGINE

331 4136 1862 2221 0.31% 0.76% 0.35% 3 Virtual Exec

DTR01AHVLNC#

Here is the OSPF issue (we have dual links to the neighbor).

Jan 12 15:05:19.820 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from FULL to INIT, 1-Way

Jan 12 15:05:19.820 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from FULL to INIT, 1-Way

Jan 12 15:05:19.868 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from INIT to 2WAY, 2-Way Received

Jan 12 15:05:19.868 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from 2WAY to EXSTART, AdjOK?

Jan 12 15:05:19.868 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from INIT to 2WAY, 2-Way Received

Jan 12 15:05:19.868 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from 2WAY to EXSTART, AdjOK?

Jan 12 15:05:20.076 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from EXSTART to EXCHANGE, Negotiation Done

Jan 12 15:05:20.080 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from EXSTART to EXCHANGE, Negotiation Done

Jan 12 15:05:20.080 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from EXCHANGE to LOADING, Exchange Done

Jan 12 15:05:20.080 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from LOADING to FULL, Loading Done

Jan 12 15:05:20.080 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from EXCHANGE to LOADING, Exchange Done

Jan 12 15:05:20.080 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from LOADING to FULL, Loading Done

Jan 12 15:16:58.820 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from FULL to INIT, 1-Way

Jan 12 15:16:58.820 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from FULL to INIT, 1-Way

Jan 12 15:16:58.820 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from INIT to 2WAY, 2-Way Received

Jan 12 15:16:58.824 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from 2WAY to EXSTART, AdjOK?

Jan 12 15:16:58.824 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from INIT to 2WAY, 2-Way Received

Jan 12 15:16:58.824 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from 2WAY to EXSTART, AdjOK?

Jan 12 15:16:59.028 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from EXSTART to EXCHANGE, Negotiation Done

Jan 12 15:16:59.028 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from EXSTART to EXCHANGE, Negotiation Done

Jan 12 15:16:59.032 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from EXCHANGE to LOADING, Exchange Done

Jan 12 15:16:59.032 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet7/3 from LOADING to FULL, Loading Done

Jan 12 15:16:59.032 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from EXCHANGE to LOADING, Exchange Done

Jan 12 15:16:59.032 EST: %OSPF-5-ADJCHG: Process 100, Nbr 172.22.55.217 on GigabitEthernet4/3 from LOADING to FULL, Loading Done

I have this problem too.
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davidhvoss Mon, 01/12/2009 - 12:51

DTR01AHVLNC#show cef drop

CEF Drop Statistics

Slot Encap_fail Unresolved Unsupported No_route No_adj ChkSum_Err

RP 34637 13 0 0 0 3564244

5 0 0 0 0 0 0

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