Re: Ping drops

Hi

those are real routers

thanks

On Mon, Oct 19, 2009 at 12:41 PM, Iwan Hoogendoorn <iwan_at_ipexpert.com>wrote:

> Are you using dynamips or real routers?
>
>
> --
> Regards,
>
> Iwan Hoogendoorn
> CCIE #13084 (R&S / Security / SP)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>
>
> On Mon, Oct 19, 2009 at 10:27 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
> >>>
> >>>
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> >>>
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Received on Mon Oct 19 2009 - 12:43:35 ART