Re: Ping drops

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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> >> >>>
> >> >>>
> >> >>>
> _______________________________________________________________________
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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
> >> >
> >> >
> _______________________________________________________________________
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Received on Mon Oct 19 2009 - 13:29:23 ART