[c-nsp] 3750 High Cpu IP Input
Chris Lane
clane1875 at gmail.com
Fri Apr 24 07:44:18 EDT 2009
sh ip traffic
IP statistics:
Rcvd: 37788273 total, 24253 local destination
0 format errors, 0 checksum errors, 9771492 bad hop count
0 unknown protocol, 27979860 not a gateway
0 security failures, 0 bad options, 7762670 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 7762670 alert, 0 cipso, 0 ump
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
0 fragmented, 0 couldn't fragment
Bcast: 2884 received, 87 sent
Mcast: 2334 received, 2209 sent
Sent: 24621 generated, 8328118 forwarded
Drop: 4258 encapsulation failed, 0 unresolved, 83 no adjacency
69 no route, 0 unicast RPF, 0 forced drop
0 options denied, 0 source IP address zero
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 0 unreachable
9560 echo, 0 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
Sent: 0 redirects, 3129 unreachable, 0 echo, 9560 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp
0 info reply, 47 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
TCP statistics:
Rcvd: 7710 total, 8 checksum errors, 1 no port
Sent: 6762 total
UDP statistics:
Rcvd: 4615 total, 0 checksum errors, 1430 no port
Sent: 2909 total, 0 forwarded broadcasts
IP-EIGRP statistics:
Rcvd: 0 total
Sent: 0 total
BGP statistics:
Rcvd: 162 total, 1 opens, 0 notifications, 1 updates
160 keepalives, 0 route-refresh, 0 unrecognized
Sent: 159 total, 1 opens, 0 notifications, 0 updates
158 keepalives, 0 route-refresh
PIMv2 statistics: Sent/Received
Total: 0/0, 0 checksum errors, 0 format errors
Registers: 0/0 (0 non-rp, 0 non-sm-group), Register Stops: 0/0, Hellos:
0/0
Join/Prunes: 0/0, Asserts: 0/0, grafts: 0/0
Bootstraps: 0/0, Candidate_RP_Advertisements: 0/0
State-Refresh: 0/0
IGMP statistics: Sent/Received
Total: 0/0, Format errors: 0/0, Checksum errors: 0/0
Host Queries: 0/0, Host Reports: 0/0, Host Leaves: 0/0
DVMRP: 0/0, PIM: 0/0
OSPF statistics:
Rcvd: 2363 total, 0 checksum errors
1900 hello, 12 database desc, 2 link state req
345 link state updates, 104 link state acks
Sent: 2231 total
1904 hello, 11 database desc, 4 link state req
223 link state updates, 89 link state acks
ARP statistics:
Rcvd: 2254 requests, 82 replies, 0 reverse, 0 other
Sent: 4178 requests, 2447 replies (2 proxy), 0 reverse
Drop due to input queue full: 0
Thanks for looking.
On Fri, Apr 24, 2009 at 7:45 AM, junior <drrtuy at ya.ru> wrote:
> Hi,
>
> Did You check TAC cases?
> Can You post this switch current configuration with sh ip traffic command
> output?
>
> WBR
> Roman A. Nozdrin
>
> Chris Lane wrote:
>
>> 1 routed interface.sh platform ip unicast failed route
>> Total of 0 covering fib entries
>>
>> Thanks for reply.. I checked earlier regarding sdm.
>> Its the same on all of my 3750's i have about 20 of them throughout the
>> states, this is probably the quietest one in regards to bandwidth and
>> services.
>>
>>
>>
>> On Fri, Apr 24, 2009 at 7:21 AM, Brian Turnbow <b.turnbow at twt.it> wrote:
>>
>> how many routed interfaces do you have ( sh ip int brief with ip
>>> addresses ) ?
>>> if more than 8 change the sdm template to routing
>>>
>>> you can use sh platform ip unicast failed route to see if routes are
>>> failing to be programmed into tcam
>>>
>>> Brian
>>>
>>>
>>>
>>>
>>> ------------------------------
>>> *From:* Chris Lane [mailto:clane1875 at gmail.com]
>>> *Sent:* venerdě 24 aprile 2009 11.17
>>>
>>> *To:* Brian Turnbow
>>> *Cc:* Peter Rathlev; cisco-nsp at puck.nether.net
>>>
>>> *Subject:* Re: [c-nsp] 3750 High Cpu IP Input
>>>
>>> sh controllers cpu-interface
>>> ASIC Rxbiterr Rxunder Fwdctfix Txbuflos Rxbufloc Rxbufdrain
>>> -------------------------------------------------------------------------
>>> ASIC0 0 0 0 0 0 0
>>> ASIC1 0 0 0 0 0 0
>>>
>>>
>>> cpu-queue-frames retrieved dropped invalid hol-block stray
>>> ----------------- ---------- ---------- ---------- ---------- ----------
>>> rpc 0 0 0 0 0
>>> stp 1807 0 0 0 0
>>> ipc 0 0 0 0 0
>>> routing protocol 1516326 0 0 0 0
>>> L2 protocol 27 0 0 0 0
>>> remote console 0 0 0 0 0
>>> sw forwarding 915 0 0 0 0
>>> host 2014 0 0 0 0
>>> broadcast 1766 0 0 0 0
>>> cbt-to-spt 0 0 0 0 0
>>> igmp snooping 1518651 0 0 0 0
>>> icmp 45 0 0 0 0
>>> logging 0 0 0 0 0
>>> rpf-fail 0 0 0 0 0
>>> queue14 0 0 0 0 0
>>> cpu heartbeat 14116 0 0 0 0
>>>
>>> ODD i have disabled IGMP SNOOPING...
>>>
>>> On Fri, Apr 24, 2009 at 4:19 AM, Brian Turnbow <b.turnbow at twt.it> wrote:
>>>
>>> You can use show controller cpu to help see whats going to the cpu
>>>> Make sure you have no ip redirects and no proxy arp on all the
>>>> interfaces.
>>>> How many routed interfaces do you have ?
>>>> The output below for "max" is for 8 routed interfaces if you have more
>>>> you
>>>> should change to the desktop switching template.
>>>> With your roughly your values for indirectly connected routes and 13 ip
>>>> interfaces on a box I needed to switch the template "sdm prefer routing"
>>>> requies reload.
>>>>
>>>> Regards
>>>>
>>>> Brian
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: cisco-nsp-bounces at puck.nether.net [mailto:
>>>> cisco-nsp-bounces at puck.nether.net] On Behalf Of Chris Lane
>>>> Sent: venerdě 24 aprile 2009 1.09
>>>> To: Peter Rathlev
>>>> Cc: cisco-nsp at puck.nether.net
>>>> Subject: Re: [c-nsp] 3750 High Cpu IP Input
>>>>
>>>> sh platform tcam utilization
>>>>
>>>> CAM Utilization for ASIC# 0 Max Used
>>>> Masks/Values Masks/values
>>>>
>>>> Unicast mac addresses: 784/6272 37/235
>>>> IPv4 IGMP groups + multicast routes: 144/1152 6/26
>>>> IPv4 unicast directly-connected routes: 784/6272 37/235
>>>> IPv4 unicast indirectly-connected routes: 272/2176 52/326
>>>> IPv4 policy based routing aces: 0/0 0/0
>>>> IPv4 qos aces: 528/528 18/18
>>>> IPv4 security aces: 1024/1024 57/57
>>>>
>>>> Note: Allocation of TCAM entries per feature uses
>>>> a complex algorithm. The above information is meant
>>>> to provide an abstract view of the current TCAM utilization
>>>>
>>>> Hope this helps.
>>>>
>>>> On Thu, Apr 23, 2009 at 4:41 PM, Peter Rathlev <peter at rathlev.dk>
>>>> wrote:
>>>>
>>>> On Thu, 2009-04-23 at 16:15 -0400, Chris Lane wrote:
>>>>>
>>>>>> This box has been in production for over a year and doesn't really do
>>>>>> to much as you can see from my orig thread it moves about 11MB.
>>>>>>
>>>>>> This just started late last night yet we didn't add any new customer
>>>>>> nor did anybody even touch switch as the device is remote.
>>>>>>
>>>>>> I read in an older thread regarding same thing that the person
>>>>>> rebooted and of course it resolved issue. I am planning to do that
>>>>>> Early tomorrow am, but
>>>>>> i really want to know what the heck is causing this.
>>>>>>
>>>>>> Yes CEF is running.
>>>>>>
>>>>> What about TCAM utilisation ("show platform tcam utilization")?
>>>>>
>>>>> Regards,
>>>>> Peter
>>>>>
>>>>>
>>>>>
>>>>>
>>>> --
>>>> //CL
>>>> _______________________________________________
>>>> cisco-nsp mailing list cisco-nsp at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>>>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>>>
>>>>
>>>
>>> --
>>> //CL
>>>
>>>
>>
>>
>>
>
--
//CL
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