Re: Ping drops

Destination router probably has control plane policing turned on. Can
you disable it and try again?

On Mon, Oct 19, 2009 at 09:06, adam gibs <adamgibs7_at_gmail.com> wrote:
> There are no CRC errors no input errors but still success rate 98%.
>
>
> Router A #ping vrf test x.x.x.x re 2000 size 1500
> Type escape sequence to abort.
> Sending 2000, 1500-byte ICMP Echos to x.x.x.x, timeout is 2 seconds:
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!
> Success rate is 98 percent (1969/2000), round-trip min/avg/max = 1/1/4 ms
> Router A #sh inter t1/1
> TenGigabitEthernet1/1 is up, line protocol is up (connected)
> B Hardware is C6k 10000Mb 802.3, address is 001e.13e5.08c0 (bia
> 001e.13e5.08c0)
> B Description: connected to Rouiter B
> B Internet address is x.x.x.x
> B MTU 1524 bytes, BW 10000000 Kbit, DLY 10 usec,
> B reliability 255/255, txload 1/255, rxload 1/255
> B Encapsulation ARPA, loopback not set
> B Keepalive set (10 sec)
> B Carrier delay is 0 msec
> B Full-duplex, 10Gb/s
> B input flow-control is off, output flow-control is off
> B ARP type: ARPA, ARP Timeout 04:00:00
> B Last input 00:00:01, output 00:00:00, output hang never
> B Last clearing of "show interface" counters 00:04:42
> B Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
> B Queueing strategy: fifo
> B Output queue: 0/40 (size/max)
> B 5 minute input rate 61000 bits/sec, 5 packets/sec
> B 5 minute output rate 122000 bits/sec, 10 packets/sec
> B L2 Switched: ucast: 2125 pkt, 3009776 bytes - mcast: 91 pkt, 9002 bytes
> B L3 in Switched: ucast: 722 pkt, 103522 bytes - mcast: 0 pkt, 0 bytes mcast
> B L3 out Switched: ucast: 1917 pkt, 1988787 bytes mcast: 0 pkt, 0 bytes
> B B 2977 packets input, 3129113 bytes, 0 no buffer
> B B Received 101 broadcasts (0 IP multicasts)
> B B 0 runts, 1969 giants, 0 throttles
> B B 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> B B 0 watchdog, 0 multicast, 0 pause input
> B B 0 input packets with dribble condition detected
> B B 4185 packets output, 5139140 bytes, 0 underruns
> B B 0 output errors, 0 collisions, 0 interface resets
> B B 0 babbles, 0 late collision, 0 deferred
> B B 0 lost carrier, 0 no carrier, 0 PAUSE output
> B B 0 output buffer failures, 0 output buffers swapped out
>
> Thanks
>
> On Mon, Oct 19, 2009 at 12:55 PM, garry baker <baker.garry_at_gmail.com> wrote:
>
>> B Router--A #sh interfaces t1/1
>> 'Last clearing of "show interface" counters 24w6d'
>>
>> can you clear the counters? to get a better idea when you run the ping
>> tests...
>>
>> B On Mon, Oct 19, 2009 at 11:27 AM, adam gibs <adamgibs7_at_gmail.com> wrote:
>>
>>> Hi,
>>>
>>> Am getting CRC errors and input errors that can be for which reason??
>>> Router
>>> C is the ISP device router A and B is in my control and running MPLS in
>>> between them and MTU size btween them is 1524.Layer 2 trunk is configured
>>> between C and B and a SVI is created to cummnicate to router C.
>>>
>>> The key point i wanna tell u is if the MTU B is not define while pinging
>>> ,,the success rate is 100%
>>>
>>> sh interface for B
>>>
>>> Router-B #sh interfaces vlan XX
>>> VlanXX is up, line protocol is up
>>> B Hardware is EtherSVI, address is 001d.7198.bc00 (bia 001d.7198.bc00)
>>> B B Internet address is X.X.X.X/X
>>> B MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
>>> B B reliability 255/255, txload 1/255, rxload 1/255
>>> B Encapsulation ARPA, loopback not set
>>> B Keepalive not supported
>>> B ARP type: ARPA, ARP Timeout 04:00:00
>>> B Last input 00:00:19, output 00:00:19, output hang never
>>> B Last clearing of "show interface" counters 20:13:44
>>> B Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>>> B Queueing strategy: fifo
>>> B Output queue: 0/40 (size/max)
>>> B 5 minute input rate 0 bits/sec, 0 packets/sec
>>> B 5 minute output rate 0 bits/sec, 0 packets/sec
>>> B L2 Switched: ucast: 2414 pkt, 170278 bytes - mcast: 0 pkt, 0 bytes
>>> B L3 in Switched: ucast: 55274 pkt, 9712088 bytes - mcast: 0 pkt, 0 bytes
>>> mcast
>>> B L3 out Switched: ucast: 1213 pkt, 90975 bytes mcast: 0 pkt, 0 bytes
>>> B B 57688 packets input, 9882366 bytes, 0 no buffer
>>> B B Received 0 broadcasts (0 IP multicasts)
>>> B B 0 runts, 0 giants, 0 throttles
>>> B B 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>>> B B 58935 packets output, 9776944 bytes, 0 underruns
>>> B B 0 output errors, 0 interface resets
>>> B B 0 output buffer failures, 0 output buffers swapped out
>>>
>>> sh interface on A
>>>
>>>
>>> Router--A #sh interfaces t1/1
>>> TenGigabitEthernet1/1 is up, line protocol is up (connected)
>>> B Hardware is C6k 10000Mb 802.3, address is 001e.13e5.08c0 (bia
>>> 001e.13e5.08c0)
>>> B B Internet address is X.X.X.X/X
>>> B MTU 1524 bytes, BW 10000000 Kbit, DLY 10 usec,
>>> B B reliability 255/255, txload 1/255, rxload 1/255
>>> B Encapsulation ARPA, loopback not set
>>> B Keepalive set (10 sec)
>>> B Carrier delay is 0 msec
>>> B Full-duplex, 10Gb/s
>>> B input flow-control is off, output flow-control is off
>>> B ARP type: ARPA, ARP Timeout 04:00:00
>>> B Last input 00:00:00, output 00:00:02, output hang never
>>> B Last clearing of "show interface" counters 24w6d
>>> B Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>>> B Queueing strategy: fifo
>>> B Output queue: 0/40 (size/max)
>>> B 5 minute input rate 42000 bits/sec, 7 packets/sec
>>> B 5 minute output rate 102000 bits/sec, 12 packets/sec
>>> B L2 Switched: ucast: 2510607 pkt, 284517486 bytes - mcast: 5014037 pkt,
>>> 502588486 bytes
>>> B L3 in Switched: ucast: 27484640 pkt, 4089035241 bytes - mcast: 0 pkt, 0
>>> bytes mcast
>>> B L3 out Switched: ucast: 62961890 pkt, 56037590371 bytes mcast: 0 pkt, 0
>>> bytes
>>> B B 35288706 packets input, 4992780739 bytes, 0 no buffer
>>> B B Received 5293236 broadcasts (0 IP multicasts)
>>> B B 0 runts, 2411 giants, 0 throttles
>>> B B 76 input errors, 65 CRC, 11 frame, 0 overrun, 0 ignored
>>> B B 0 watchdog, 0 multicast, 0 pause input
>>> B B 0 input packets with dribble condition detected
>>> B B 73469711 packets output, 57321041866 bytes, 0 underruns
>>> B B 0 output errors, 0 collisions, 2 interface resets
>>> B B 0 babbles, 0 late collision, 0 deferred
>>> B B 0 lost carrier, 0 no carrier, 0 PAUSE output
>>> B B 0 output buffer failures, 0 output buffers swapped out
>>>
>>>
>>>
>>>
>>> On Mon, Oct 19, 2009 at 12:01 PM, Thameem Maranveetil Parambath <
>>> security.goodie_at_gmail.com> wrote:
>>>
>>> > B You should get 100% success rate.. Check for sh interface command on
>>> the
>>> > interface connecting A and B , also B and C and see if you are getting
>>> any
>>> > errors/discards etc.
>>> >
>>> > Regards
>>> > Thameem
>>> >
>>> > B On Mon, Oct 19, 2009 at 11:01 AM, adam gibs <adamgibs7_at_gmail.com>
>>> wrote:
>>> >
>>> >> B friends,
>>> >>
>>> >> A----------B---------------------C
>>> >>
>>> >> when i try to ping from A to C by 1500 byte with repeat count of 10000
>>> the
>>> >> success rate is 98% and sometimes 97%.Is it something i have to go deep
>>> to
>>> >> troubleshoot or it is normal???? and what troubleshooting can i do for
>>> >> such
>>> >> situation,The MTU configured on interface is 1520.
>>> >>
>>> >> Success rate is 98 percent (986/1000), round-trip min/avg/max = 1/1/16
>>> ms
>>> >>
>>> >> The devices A and B is 6500 switch with negligble traffic flowing
>>> through
>>> >> it.
>>> >>
>>> >> Thanks
>>> >>
>>> >>
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>>> >>
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>>
>>
>> --
>> Garry L. Baker
>>
>> "There is no 'patch' for stupidity." - www.sqlsecurity.com
>
>
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>
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Received on Mon Oct 19 2009 - 09:16:35 ART