[c-nsp] NPE-G2 Gigabit Ignored Errors
Hank Nussbacher
hank at efes.iucc.ac.il
Sun Sep 14 02:38:26 EDT 2008
At 02:43 PM 12-09-08 -0400, Rodney Dunn wrote:
Rodney,
On a related note, we are seeing input overruns on almost all native GigaE
ports on the NPE-G1. Example on 12.4(21):
GigabitEthernet0/2 is up, line protocol is up
Hardware is BCM1250 Internal MAC, address is 0009.446d.ac1a (bia
0009.446d.ac1a)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 23/255, rxload 13/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is force-up, media type is SX
output flow-control is unsupported, 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: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 52874000 bits/sec, 13178 packets/sec
30 second output rate 92696000 bits/sec, 14626 packets/sec
13055246077 packets input, 7473426491146 bytes, 0 no buffer
Received 48343 broadcasts, 0 runts, 0 giants, 0 throttles
315 input errors, 0 CRC, 0 frame, 315 overrun, 0 ignored
0 watchdog, 2937496 multicast, 0 pause input
0 input packets with dribble condition detected
On 12.4(18):
GigabitEthernet0/1 is up, line protocol is up
Hardware is BCM1250 Internal MAC, address is 0009.449b.2c1b (bia
0009.449b.2c1b)
MTU 9000 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 29/255, rxload 41/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 00:04:00
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2048/0/3 (size/max/drops/flushes); Total output drops: 139963
Queueing strategy: fifo
Output queue: 0/1024 (size/max)
30 second input rate 163604000 bits/sec, 25284 packets/sec
30 second output rate 113775000 bits/sec, 23142 packets/sec
138829558726 packets input, 110625630435301 bytes, 0 no buffer
Received 1170089 broadcasts, 0 runts, 0 giants, 0 throttles
42963 input errors, 0 CRC, 0 frame, 42963 overrun, 0 ignored
0 watchdog, 2939379 multicast, 0 pause input
0 input packets with dribble condition detected
On 12.4(9)T2:
GigabitEthernet0/2 is up, line protocol is up
Hardware is BCM1250 Internal MAC, address is 0009.449b.441a (bia
0009.449b.441a)
MTU 1500 bytes, BW 450000 Kbit, DLY 10 usec,
reliability 255/255, txload 21/255, rxload 60/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is RJ45
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: 0/1024/369/79002147 (size/max/drops/flushes); Total output
drops: 82
Queueing strategy: fifo
Output queue: 0/1024 (size/max)
30 second input rate 105976000 bits/sec, 13665 packets/sec
30 second output rate 38207000 bits/sec, 11394 packets/sec
2996785111 packets input, 3073612701 bytes, 2279 no buffer
Received 500907287 broadcasts, 0 runts, 0 giants, 2483 throttles
8348 input errors, 0 CRC, 0 frame, 8348 overrun, 0 ignored
0 watchdog, 497602409 multicast, 0 pause input
0 input packets with dribble condition detected
Any ideas why?
-Hank
>On Fri, Sep 12, 2008 at 02:40:04PM -0400, Clayton Zekelman wrote:
> >
> > No luck... didn't fix it. Is it fixed in a subsequent release? Are
> > there any other parameters I can tune?
>
>Not really because you can't tune the rx ring depth.
>
>Check 'sh controller'.
>
>What does 'sh proc cpu sort | excl 0.00' say?
>
>Can you post the configuration..I'm curious what your features
>look like because the more you have the less pps you get through
>this box..it's all done in software and can't do all features at line
>rate during a microburst.
>
>sh int stat
>
>
>Rodney
>
>
> >
> > GigabitEthernet0/1 is up, line protocol is up
> > Hardware is MV64460 Internal MAC, address is 001a.6d30.091b (bia
> > 001a.6d30.091b)
> > Description: to gig-fastiron Ethernet11
> > MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> > reliability 255/255, txload 23/255, rxload 48/255
> > Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
> > Keepalive set (10 sec)
> > Full-duplex, 1000Mb/s, media type is RJ45
> > 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 00:10:09
> > Input queue: 0/4096/533/0 (size/max/drops/flushes); Total output drops: 0
> > Queueing strategy: fifo
> > Output queue: 0/40 (size/max)
> > 30 second input rate 189692000 bits/sec, 30246 packets/sec
> > 30 second output rate 91448000 bits/sec, 27197 packets/sec
> > 18432915 packets input, 1555851456 bytes, 0 no buffer
> > Received 65 broadcasts, 0 runts, 0 giants, 0 throttles
> > 1117 input errors, 0 CRC, 0 frame, 0 overrun, 1117 ignored
> > 0 watchdog, 1034 multicast, 0 pause input
> > 0 input packets with dribble condition detected
> >
> >
> >
> > At 02:16 PM 9/12/2008, Rodney Dunn wrote:
> > >Can you bump up your input queue depth:
> > >
> > >hold-queue 4096 in
> > >
> > >and see if they stop.
> > >
> > >I don't suspect that is going to help because the ignores
> > >are not increasing that would point to:
> > >
> > >CSCse05447
> > >Externally found moderate defect: Resolved (R)
> > >7200 ethernet interfaces should not throttle on input queue full drops
> > >
> > >Most likely you are seeing micro burst that are coming in faster
> > >than the CPU can drain the rx ring.
> > >
> > >Rodney
> > >
> > >
> > >
> > >On Fri, Sep 12, 2008 at 12:50:29PM -0400, Clayton Zekelman wrote:
> > >>
> > >> I'm running a Cisco 7206/VXR with an NPE G2, Version 12.4(4)XD4
> > >> acting as an LNS.
> > >>
> > >> I'm getting input errors consistently incrementing on the Gig
> > >> interface (ignored errors)
> > >>
> > >> Any way to fix this? I saw some discussion a while back about this,
> > >> and it seemed to have to do with buffers - but I can't find any
> > >> definitive recommendations on what the settings should be.
> > >>
> > >>
> > >>
> > >> GigabitEthernet0/1 is up, line protocol is up
> > >> Hardware is MV64460 Internal MAC, address is 001a.6d30.091b (bia
> > >> 001a.6d30.091b)
> > >> Description: to gig-fastiron Ethernet11
> > >> MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> > >> reliability 255/255, txload 22/255, rxload 46/255
> > >> Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
> > >> Keepalive set (10 sec)
> > >> Full-duplex, 1000Mb/s, media type is RJ45
> > >> 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 00:22:17
> > >> Input queue: 0/75/1191/0 (size/max/drops/flushes); Total output
> drops:
> > >0
> > >> Queueing strategy: fifo
> > >> Output queue: 0/40 (size/max)
> > >> 30 second input rate 181384000 bits/sec, 29001 packets/sec
> > >> 30 second output rate 86319000 bits/sec, 26045 packets/sec
> > >> 38605963 packets input, 4274358612 bytes, 1 no buffer
> > >> Received 230 broadcasts, 0 runts, 0 giants, 0 throttles
> > >> 2677 input errors, 0 CRC, 0 frame, 0 overrun, 2677 ignored
> > >> 0 watchdog, 2196 multicast, 0 pause input
> > >> 0 input packets with dribble condition detected
> > >> 34556615 packets output, 1656923135 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
> > >>
> > >>
> > >>
> > >> ---
> > >> Clayton Zekelman
> > >> Managed Network Systems Inc. (MNSi)
> > >> 344-300 Tecumseh Rd. E.
> > >> Windsor, Ontario
> > >> N8X 5E8
> > >>
> > >> tel. 519-985-8410
> > >> fax. 519-985-8409
> > >>
> > >> _______________________________________________
> > >> cisco-nsp mailing list cisco-nsp at puck.nether.net
> > >> https://puck.nether.net/mailman/listinfo/cisco-nsp
> > >> archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
> > ---
> > Clayton Zekelman
> > Managed Network Systems Inc. (MNSi)
> > 344-300 Tecumseh Rd. E.
> > Windsor, Ontario
> > N8X 5E8
> >
> > tel. 519-985-8410
> > fax. 519-985-8409
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