Re: Ping drops

Dear,

What is the access mode from your isp? is it fiber? is there any fiber to
gig converter in between?

Ask the service provider to get involved int his...

Regards

On Mon, Oct 19, 2009 at 1:29 PM, adam gibs <adamgibs7_at_gmail.com> wrote:

> Thanks Dears for UR support nd explanation.
>
>
> On Mon, Oct 19, 2009 at 1:25 PM, Marko Milivojevic <markom_at_markom.info>wrote:
>
>> Like I wrote, it's control plane policing on the destination router -
>> there is nothing you can do and this is not an error. Your ISP doesn't
>> want to waste CPU cycles on replying to useless ping packets to its
>> router... on purpose! If you wish to test cct. performance, test it
>> end-to-end, not by testing CPU of the intermediate routers... :-)
>>
>> --
>> Marko
>> CCIE #18427 (SP)
>> My network blog: http://cisco.markom.info/
>>
>> On Mon, Oct 19, 2009 at 09:21, adam gibs <adamgibs7_at_gmail.com> wrote:
>> > Dears,
>> >
>> > the success rate from A to B is 100% and also from B to A is 100%,The
>> issue
>> > is from router C that is ISP, I dont have control on router C i will
>> > coordinate with them for the issue,
>> >
>> > Any more suggestion pls mail to me,
>> >
>> > Helping each other will lead to success,
>> >
>> > Thanks Dears,
>> >
>> >
>> >
>> >
>> > On Mon, Oct 19, 2009 at 1:16 PM, Marko Milivojevic <markom_at_markom.info>
>> > wrote:
>> >>
>> >> 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)
>> >> > Hardware is C6k 10000Mb 802.3, address is 001e.13e5.08c0 (bia
>> >> > 001e.13e5.08c0)
>> >> > Description: connected to Rouiter B
>> >> > Internet address is x.x.x.x
>> >> > MTU 1524 bytes, BW 10000000 Kbit, DLY 10 usec,
>> >> > reliability 255/255, txload 1/255, rxload 1/255
>> >> > Encapsulation ARPA, loopback not set
>> >> > Keepalive set (10 sec)
>> >> > Carrier delay is 0 msec
>> >> > Full-duplex, 10Gb/s
>> >> > input flow-control is off, output flow-control is off
>> >> > ARP type: ARPA, ARP Timeout 04:00:00
>> >> > Last input 00:00:01, output 00:00:00, output hang never
>> >> > Last clearing of "show interface" counters 00:04:42
>> >> > Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
>> 0
>> >> > Queueing strategy: fifo
>> >> > Output queue: 0/40 (size/max)
>> >> > 5 minute input rate 61000 bits/sec, 5 packets/sec
>> >> > 5 minute output rate 122000 bits/sec, 10 packets/sec
>> >> > L2 Switched: ucast: 2125 pkt, 3009776 bytes - mcast: 91 pkt, 9002
>> bytes
>> >> > L3 in Switched: ucast: 722 pkt, 103522 bytes - mcast: 0 pkt, 0 bytes
>> >> > mcast
>> >> > L3 out Switched: ucast: 1917 pkt, 1988787 bytes mcast: 0 pkt, 0
>> bytes
>> >> > 2977 packets input, 3129113 bytes, 0 no buffer
>> >> > Received 101 broadcasts (0 IP multicasts)
>> >> > 0 runts, 1969 giants, 0 throttles
>> >> > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>> >> > 0 watchdog, 0 multicast, 0 pause input
>> >> > 0 input packets with dribble condition detected
>> >> > 4185 packets output, 5139140 bytes, 0 underruns
>> >> > 0 output errors, 0 collisions, 0 interface resets
>> >> > 0 babbles, 0 late collision, 0 deferred
>> >> > 0 lost carrier, 0 no carrier, 0 PAUSE output
>> >> > 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:
>> >> >
>> >> >> 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...
>> >> >>
>> >> >> 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 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
>> >> >>> Hardware is EtherSVI, address is 001d.7198.bc00 (bia
>> 001d.7198.bc00)
>> >> >>> Internet address is X.X.X.X/X
>> >> >>> MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
>> >> >>> reliability 255/255, txload 1/255, rxload 1/255
>> >> >>> Encapsulation ARPA, loopback not set
>> >> >>> Keepalive not supported
>> >> >>> ARP type: ARPA, ARP Timeout 04:00:00
>> >> >>> Last input 00:00:19, output 00:00:19, output hang never
>> >> >>> Last clearing of "show interface" counters 20:13:44
>> >> >>> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output
>> drops: 0
>> >> >>> Queueing strategy: fifo
>> >> >>> Output queue: 0/40 (size/max)
>> >> >>> 5 minute input rate 0 bits/sec, 0 packets/sec
>> >> >>> 5 minute output rate 0 bits/sec, 0 packets/sec
>> >> >>> L2 Switched: ucast: 2414 pkt, 170278 bytes - mcast: 0 pkt, 0 bytes
>> >> >>> L3 in Switched: ucast: 55274 pkt, 9712088 bytes - mcast: 0 pkt, 0
>> >> >>> bytes
>> >> >>> mcast
>> >> >>> L3 out Switched: ucast: 1213 pkt, 90975 bytes mcast: 0 pkt, 0
>> bytes
>> >> >>> 57688 packets input, 9882366 bytes, 0 no buffer
>> >> >>> Received 0 broadcasts (0 IP multicasts)
>> >> >>> 0 runts, 0 giants, 0 throttles
>> >> >>> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>> >> >>> 58935 packets output, 9776944 bytes, 0 underruns
>> >> >>> 0 output errors, 0 interface resets
>> >> >>> 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)
>> >> >>> Hardware is C6k 10000Mb 802.3, address is 001e.13e5.08c0 (bia
>> >> >>> 001e.13e5.08c0)
>> >> >>> Internet address is X.X.X.X/X
>> >> >>> MTU 1524 bytes, BW 10000000 Kbit, DLY 10 usec,
>> >> >>> reliability 255/255, txload 1/255, rxload 1/255
>> >> >>> Encapsulation ARPA, loopback not set
>> >> >>> Keepalive set (10 sec)
>> >> >>> Carrier delay is 0 msec
>> >> >>> Full-duplex, 10Gb/s
>> >> >>> input flow-control is off, output flow-control is off
>> >> >>> ARP type: ARPA, ARP Timeout 04:00:00
>> >> >>> Last input 00:00:00, output 00:00:02, output hang never
>> >> >>> Last clearing of "show interface" counters 24w6d
>> >> >>> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output
>> drops: 0
>> >> >>> Queueing strategy: fifo
>> >> >>> Output queue: 0/40 (size/max)
>> >> >>> 5 minute input rate 42000 bits/sec, 7 packets/sec
>> >> >>> 5 minute output rate 102000 bits/sec, 12 packets/sec
>> >> >>> L2 Switched: ucast: 2510607 pkt, 284517486 bytes - mcast: 5014037
>> >> >>> pkt,
>> >> >>> 502588486 bytes
>> >> >>> L3 in Switched: ucast: 27484640 pkt, 4089035241 bytes - mcast: 0
>> pkt,
>> >> >>> 0
>> >> >>> bytes mcast
>> >> >>> L3 out Switched: ucast: 62961890 pkt, 56037590371 bytes mcast: 0
>> pkt,
>> >> >>> 0
>> >> >>> bytes
>> >> >>> 35288706 packets input, 4992780739 bytes, 0 no buffer
>> >> >>> Received 5293236 broadcasts (0 IP multicasts)
>> >> >>> 0 runts, 2411 giants, 0 throttles
>> >> >>> 76 input errors, 65 CRC, 11 frame, 0 overrun, 0 ignored
>> >> >>> 0 watchdog, 0 multicast, 0 pause input
>> >> >>> 0 input packets with dribble condition detected
>> >> >>> 73469711 packets output, 57321041866 bytes, 0 underruns
>> >> >>> 0 output errors, 0 collisions, 2 interface resets
>> >> >>> 0 babbles, 0 late collision, 0 deferred
>> >> >>> 0 lost carrier, 0 no carrier, 0 PAUSE output
>> >> >>> 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:
>> >> >>>
>> >> >>> > 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
>> >> >>> >
>> >> >>> > On Mon, Oct 19, 2009 at 11:01 AM, adam gibs <
>> adamgibs7_at_gmail.com>
>> >> >>> wrote:
>> >> >>> >
>> >> >>> >> 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
>> >> >>> >>
>> >> >>> >>
>> >> >>> >> Blogs and organic groups at http://www.ccie.net
>> >> >>> >>
>> >> >>> >>
>> >> >>> >>
>> _______________________________________________________________________
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>> >> >>>
>> >> >>>
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>> >> >>>
>> >> >>>
>> >> >>>
>> _______________________________________________________________________
>> >> >>> Subscription information may be found at:
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>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Garry L. Baker
>> >> >>
>> >> >> "There is no 'patch' for stupidity." - www.sqlsecurity.com
>> >> >
>> >> >
>> >> > Blogs and organic groups at http://www.ccie.net
>> >> >
>> >> >
>> _______________________________________________________________________
>> >> > Subscription information may be found at:
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Received on Mon Oct 19 2009 - 14:16:40 ART