Re: Ping drops

can you ping from a host behind A to a host behind C to take the routers
'control plane' vs 'data plane' out of the picture, ping from CLI to CLI for
"perfomance" testing is usually not the best thing to do....

On Mon, Oct 19, 2009 at 12:13 PM, adam gibs <adamgibs7_at_gmail.com> wrote:

> Dears,
>
> The link between A and B is 10 gig,and the sh inter on router B (which is
> connected to router A)
>
> router B #sh int t1/7
> TenGigabitEthernet1/7 is up, line protocol is up (connected)
> Hardware is C6k 10000Mb 802.3, address is 001d.7198.bc00 (bia
> 001d.7198.bc00)
> Description: connected to Distribution A)
> 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 00:00:00, output 00:00:00, output hang never
> Last clearing of "show interface" counters 00:01:31
> 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 136000 bits/sec, 15 packets/sec
> 5 minute output rate 74000 bits/sec, 10 packets/sec
> L2 Switched: ucast: 2003 pkt, 3044238 bytes - mcast: 31 pkt, 3020 bytes
> L3 in Switched: ucast: 709 pkt, 722669 bytes - mcast: 0 pkt, 0 bytes
> mcast
> L3 out Switched: ucast: 2206 pkt, 3022797 bytes mcast: 0 pkt, 0 bytes
> 2675 packets input, 3692785 bytes, 0 no buffer
> Received 32 broadcasts (0 IP multicasts)
> 0 runts, 2000 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
> 2239 packets output, 3034553 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 1:06 PM, 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
>>>
>>
>>
>

-- 
Garry L. Baker
"There is no 'patch' for stupidity." - www.sqlsecurity.com
Blogs and organic groups at http://www.ccie.net