[c-nsp] Lot of input errors on a NPE-G1 interface
gal.9430 at googlemail.com
gal.9430 at googlemail.com
Wed May 23 12:25:37 EDT 2012
Hi Chris,
thx for pointing this out! But what happened if I increase the hold-queue
from 75 (default) to 200 or 400?
On Wed, May 23, 2012 at 5:18 PM, Chris Gotstein <chris at uplogon.com> wrote:
> First suggestion i would make is removing spanning-tree portfast from the
> switch config.
>
> You can also try increasing your hold queue on the 7204 with the command:
>
> hold-queue <length> in
>
> The recommendation is to increase in small increments, so i would suggest
> starting with 100.
>
> http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080094791.shtml
>
>
> On 5/23/2012 1:04 AM, gal.9430 at googlemail.com wrote:
>>
>> Hi,
>>
>> I've some trouble with a NPE-G1 interface connected to a Catalyst
>> 2960G switch via multimode cable. Input errors increases very fast.
>> Optics on both sides are original cisco. Average bandwidth is ~30-50
>> Mbps, burst bandwidth ~80-100 Mbps for a short period.
>>
>> Configuration NPE-G1 interface:
>> ----------------------------------------------
>> interface GigabitEthernet0/1
>> ip address x.x.x.x 255.255.255.240
>> no ip proxy-arp
>> ip route-cache flow
>> duplex full
>> speed 1000
>> media-type gbic
>> negotiation auto
>> ipv6 address x:x:x::x/64
>> no cdp enable
>>
>> Configuration switch interface:
>> --------------------------------------------
>> !
>> interface GigabitEthernet0/23
>> description Cisco7204VXR
>> switchport access vlan 250
>> switchport mode access
>> spanning-tree portfast
>> !
>>
>> Uptime:
>> -----------
>> Router uptime is 9 hours, 14 minutes
>> System returned to ROM by bus error at PC 0x621E0668, address
>> 0x18680DD8 at 22:37:34 MET Tue May 22 2012
>> System restarted at 22:40:33 MET Tue May 22 2012
>> System image file is "disk2:c7200-adventerprisek9-mz.124-15.T13.bin"
>>
>> NPE-G1:
>> ------------
>> GigabitEthernet0/1 is up, line protocol is up
>> Hardware is BCM1250 Internal MAC, address is 0006.52f4.d81b (bia
>> 0006.52f4.d81b)
>> Internet address is x.x.x.x/28
>> MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
>> reliability 255/255, txload 1/255, rxload 1/255
>> Encapsulation ARPA, loopback not set
>> Keepalive set (10 sec)
>> Full-duplex, 1000Mb/s, link type is autonegotiation, media type is SX
>> output flow-control is XON, input flow-control is XON
>> 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 never
>> Input queue: 0/75/1321/1 (size/max/drops/flushes); Total output drops: 0
>> Queueing strategy: fifo
>> Output queue: 0/40 (size/max)
>> 5 minute input rate 4264000 bits/sec, 871 packets/sec
>> 5 minute output rate 5859000 bits/sec, 1597 packets/sec
>> 27479327 packets input, 3434822229 bytes, 0 no buffer
>> Received 941 broadcasts, 0 runts, 0 giants, 0 throttles
>> 989 input errors, 0 CRC, 0 frame, 989 overrun, 0 ignored
>> 0 watchdog, 17119 multicast, 0 pause input
>> 0 input packets with dribble condition detected
>> 43616309 packets output, 2243854018 bytes, 0 underruns
>> 5 output errors, 0 collisions, 4 interface resets
>> 561 unknown protocol drops
>> 0 babbles, 0 late collision, 0 deferred
>> 5 lost carrier, 0 no carrier, 0 pause output
>> 0 output buffer failures, 0 output buffers swapped out
>>
>> Catalyst:
>> --------------
>> GigabitEthernet0/23 is up, line protocol is up (connected)
>> Hardware is Gigabit Ethernet, address is 04fe.7f65.2197 (bia
>> 04fe.7f65.2197)
>> Description: Cisco7204VXR
>> 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 set
>> Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP
>> input flow-control is off, output flow-control is unsupported
>> ARP type: ARPA, ARP Timeout 04:00:00
>> Last input never, output 00:00:01, output hang never
>> Last clearing of "show interface" counters never
>> 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 5582000 bits/sec, 1596 packets/sec
>> 5 minute output rate 5445000 bits/sec, 1002 packets/sec
>> 160765357185 packets input, 75815081907836 bytes, 0 no buffer
>> Received 580911 broadcasts (468086 multicasts)
>> 0 runts, 0 giants, 0 throttles
>> 5 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>> 0 watchdog, 468086 multicast, 343548 pause input
>> 0 input packets with dribble condition detected
>> 116641123524 packets output, 71833102673211 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
>>
>> The last uptime was nearly 70 days and input errors round about 96k.
>> Does anyone have an explanation for that?
>>
>>
>> Thanks
>> _______________________________________________
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>
>
> --
> ---- ---- ---- ----
> Chris Gotstein, Network Engineer, U.P. Logon/Computer Connection U.P.
> http://uplogon.com | +1 906 774 4847 | chris at uplogon.com
> _______________________________________________
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