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%TRACKING-5-STATE: messages in router log

millerlw
Level 1
Level 1

‎08-29-2012 10:30 AM - edited ‎03-04-2019 05:25 PM

Hi,

I am having a problem with a remote 871 router, periodically it goes down for some unknown reason.  There is nobody on site with technical experience that can troubleshoot it once the site drops.  Below is a section of the router log with entries from today and the sla lines from the config.  Finding an adequate service provider in the area is probably not going to happen, so I'm hoping this issue can be resolved with a simple config change.

I do not think the fact that FA1 goes down is relevant because the tunnels are on FA4.  I just turned on track debugging, so hopefully it will return something useful and not kill the router.

Thanks in advance,

Leonard

ip sla 10

icmp-echo 10.163.0.1

timeout 1000

frequency 3

ip sla schedule 10 life forever start-time now

ip sla 11

icmp-echo 10.163.8.1

timeout 1000

frequency 3

ip sla schedule 11 life forever start-time now

000092: Aug 29 01:52:10: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000093: Aug 29 01:52:15: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000094: Aug 29 06:09:27: %TRACKING-5-STATE: 10 rtr 10 reachability Up->Down

000095: Aug 29 06:09:27: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000096: Aug 29 06:09:34: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 10.163.8.1 (Tunnel3) is down: holding time expired

000097: .Aug 29 10:48:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to down

000098: .Aug 29 10:48:54: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3, changed state to down

000099: .Aug 29 10:49:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to up

000100: .Aug 29 10:49:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3, changed state to up

000101: .Aug 29 10:49:25: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 10.163.8.1 (Tunnel3) is up: new adjacency

000102: .Aug 29 10:49:29: %TRACKING-5-STATE: 10 rtr 10 reachability Down->Up

000103: .Aug 29 10:49:29: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000104: Aug 29 10:55:15: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to up

000105: Aug 29 10:55:16: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1, changed state to up

000106: Aug 29 10:57:39: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000107: Aug 29 10:57:44: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000108: Aug 29 11:02:38: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1, changed state to down

000109: Aug 29 11:02:39: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to down

000110: Aug 29 11:04:49: %TRACKING-5-STATE: 10 rtr 10 reachability Up->Down

000111: Aug 29 11:04:54: %TRACKING-5-STATE: 10 rtr 10 reachability Down->Up

000112: Aug 29 11:17:35: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000113: Aug 29 11:17:40: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000114: Aug 29 11:27:35: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000115: Aug 29 11:27:40: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000116: Aug 29 11:42:42: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to down

000117: Aug 29 11:42:44: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to up

000118: Aug 29 11:42:45: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1, changed state to up

000119: Aug 29 11:44:20: %TRACKING-5-STATE: 10 rtr 10 reachability Up->Down

000120: Aug 29 11:44:20: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000121: Aug 29 11:44:25: %TRACKING-5-STATE: 10 rtr 10 reachability Down->Up

000122: Aug 29 11:44:25: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000123: Aug 29 12:04:45: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

000124: Aug 29 12:04:50: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

000125: Aug 29 12:10:53: %SYS-5-CONFIG_I: Configured from console by vty0 (10.8.101.2)

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134113-871-confg.txt.zip
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7 Replies 7

millerlw
Level 1
Level 1

‎08-29-2012 10:56 AM

Ok, so the debug didnt' provide any more information, it basically just gave me the same lines with the addition of another number.

Aug 29 12:51:21: Track: 11 Change #28 rtr 11, reachability Up->Down

Aug 29 12:51:21: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

Aug 29 12:51:26: Track: 11 Change #29 rtr 11, reachability Down->Up

Aug 29 12:51:26: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

Aug 29 12:53:01: Track: 11 Change #30 rtr 11, reachability Up->Down

Aug 29 12:53:01: %TRACKING-5-STATE: 11 rtr 11 reachability Up->Down

Aug 29 12:53:06: Track: 11 Change #31 rtr 11, reachability Down->Up

Aug 29 12:53:06: %TRACKING-5-STATE: 11 rtr 11 reachability Down->Up

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Peter Paluch
Cisco Employee
Cisco Employee

‎08-29-2012 11:00 AM

Hello Leonard,

The tracking messages are, in my opinion, only a symptom of a different problem - that the reachability of the pinged addresses fluctuates strongly.

Can you perhaps provide us with complete configuration of that router? Also, can you be more specific about how this router is connected to the network - is it a DSL service or some other sort of connection? Try to be as descriptive as possible please. Thank you!

Best regards,

Peter

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millerlw
Level 1
Level 1

‎08-29-2012 11:19 AM

Hi Peter,

I just attached the config to the thread.  This site is very remote and using a DSL connection.  We do not have access to the modem for configuration or troubleshooting but I firmly believe this is a problem with the provider, but need to be sure so I can push them harder.

Thank you for your help,

Leonard

0 Helpful

Peter Paluch
Cisco Employee
Cisco Employee
In response to millerlw

‎08-29-2012 11:38 AM

Hello Leonard,

I believe that the 871 does not have any built-in DSL modem - am I correct? In that case, there must be an external DSL modem/router installed at the remote site and connected to the Fa4 interface. Is this correct?

Can you perhaps post the output of the show interface Fa4 if that is accessible? Also, do you have any idea why the Fa4 interface flapped according to these log lines?

000097: .Aug 29 10:48:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to down

000098: .Aug 29 10:48:54: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3, changed state to down

000099: .Aug 29 10:49:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet4, changed state to up

000100: .Aug 29 10:49:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3, changed state to up

Best regards,

Peter

0 Helpful

millerlw
Level 1
Level 1

‎08-29-2012 12:01 PM

Hi Peter,

Correct, that DSL modem is external and provided by the ISP.  I believe it flapped because we requested the local contact to temporarily disconnect the link, usually they just rebooted the router without calling us.

FastEthernet4 is up, line protocol is up

  Hardware is PQUICC_FEC, address is 081f.f3e6.a79b (bia 081f.f3e6.a79b)

  Internet address is 192.168.227.49/24

  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, 100BaseTX/FX

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:04, output 00:00:00, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 32000 bits/sec, 9 packets/sec

  5 minute output rate 10000 bits/sec, 8 packets/sec

     358869 packets input, 131210769 bytes

     Received 3 broadcasts, 0 runts, 0 giants, 1 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog

     0 input packets with dribble condition detected

     376049 packets output, 74720952 bytes, 0 underruns

     0 output errors, 0 collisions, 2 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

Thanks,

Leonard

0 Helpful

Peter Paluch
Cisco Employee
Cisco Employee
In response to millerlw

‎08-29-2012 01:02 PM

Hello Leonard,

Thank you for this information. There is no indication for any obvious fault on the router. The issue, in my opinion, lies with the provider.

I suggest configuring a probe that simply verifies the reachability of your default gateway - assuming that whatever fault there is, it is located on the connection between your DSL modem and your default gateway:

ip sla 123

  icmp-echo 192.168.227.1

  timeout 500

  frequency 1

ip sla schedule 123 life forever start-time now

Then use the show ip sla 123 statistics to gain basic statistics about how many pings were successful and unsuccessful. This test should be run over longer period of time - days or so - to gather statistically significant data. However, you can immediately watch whether the ratio of reported successful and unsuccessful probes is skewed towards unsuccessful results.

Best regards,

Peter

EDIT: You will also need to correct the ACL 101 to allow the return pings from 192.168.227.1.

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millerlw
Level 1
Level 1

‎08-29-2012 01:51 PM

Hi Peter,

I will make those changes and see what happens.

Thank you very much for your help,

Leonard

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