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7206VXR 639 input errors, ignored & buffer failures

I havea 7206VXR that is giving me trouble. the input and ignored erors grow under load. Also the buffer failures are also growing. Here is a sho ver

System returned to ROM by reload at 19:24:41 EST Wed Nov 10 2010
System restarted at 19:26:59 EST Wed Nov 10 2010
System image file is "disk1:c7200-ik9s-mz.124-25d.bin"
Last reload reason: Reload Command

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Cisco 7206VXR (NPE400) processor (revision B) with 491520K/32768K bytes of memory.
Processor board ID 25850405
R7000 CPU at 350MHz, Implementation 39, Rev 3.3, 256KB L2 Cache
6 slot VXR midplane, Version 2.5

Last reset from power-on

PCI bus mb0_mb1 (Slots 0, 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb0_mb1 has a total of 890 bandwidth points.
The set of PA-2FE, PA-POS-2OC3, and I/O-2FE qualify for "half
bandwidth points" consideration, when full bandwidth point counting
results in oversubscription, under the condition that only one of the
two ports is used. With this adjustment, current configuration on bus
mb0_mb1 has a total of 690 bandwidth points.
This configuration has oversubscripted the PCI bus and is not a
supported configuration.

PCI bus mb2 (Slots 2, 4, 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 600 bandwidth points
This configuration is within the PCI bus capacity and is supported.

Please refer to the following document "Cisco 7200 Series Port Adaptor
Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>
for c7200 bandwidth points oversubscription and usage guidelines.

WARNING: PCI bus mb0_mb1 Exceeds 600 bandwidth points

7 FastEthernet interfaces
6 Serial interfaces
1 Channelized T3 port
125K bytes of NVRAM.

46976K bytes of ATA PCMCIA card at slot 1 (Sector size 512 bytes).
8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102

Don't understand the PA-POS-2OC3 as I don't have that installed on this router.

Here is a show buffer and show interface

astEthernet4/0 is up, line protocol is up
  Hardware is DEC21140, address is 0007.ece9.3470 (bia 0007.ece9.3470)
  Description: *****************************

  Internet address is *******************

  MTU 1500 bytes, BW 25600 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 17/255, rxload 5/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  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: 1/75/3/5918 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 560000 bits/sec, 644 packets/sec
  5 minute output rate 1777000 bits/sec, 692 packets/sec
     2228906 packets input, 386315922 bytes
     Received 61 broadcasts, 0 runts, 0 giants, 3 throttles
     639 input errors, 0 CRC, 0 frame, 0 overrun, 639 ignored
     0 watchdog
     0 input packets with dribble condition detected
     2440098 packets output, 867892692 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     1 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

Buffer elements:
     1118 in free list (1119 max allowed)
     2998057 hits, 0 misses, 619 created

Public buffer pools:
Small buffers, 104 bytes (total 156, permanent 50, peak 159 @ 00:57:57):
     145 in free list (20 min, 150 max allowed)
     1371522 hits, 92 misses, 3 trims, 109 created
     27 failures (0 no memory)
Middle buffers, 600 bytes (total 194, permanent 180, peak 194 @ 00:57:59):
     190 in free list (50 min, 230 max allowed)
     114861 hits, 15 misses, 0 trims, 14 created
     5 failures (0 no memory)
Big buffers, 1536 bytes (total 50, permanent 50):
     49 in free list (5 min, 150 max allowed)
     28467 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 10, permanent 10):
     10 in free list (0 min, 100 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
Large buffers, 5024 bytes (total 0, permanent 0):
     0 in free list (0 min, 10 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
Huge buffers, 18024 bytes (total 0, permanent 0):
     0 in free list (0 min, 4 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)

Interface buffer pools:
Syslog ED Pool buffers, 600 bytes (total 150, permanent 150):
     118 in free list (150 min, 150 max allowed)
     75 hits, 0 misses
IPC buffers, 4096 bytes (total 2, permanent 2):
     2 in free list (1 min, 8 max allowed)
     0 hits, 0 fallbacks, 0 trims, 0 created
     0 failures (0 no memory)

Header pools:
Header buffers, 0 bytes (total 511, permanent 256, peak 511 @ 00:58:15):
     255 in free list (256 min, 1024 max allowed)
     171 hits, 85 misses, 0 trims, 255 created
     0 failures (0 no memory)
     256 max cache size, 256 in cache
     39146 hits in cache, 0 misses in cache

Particle Clones:
     1024 clones, 0 hits, 0 misses
         
Public particle pools:
F/S buffers, 128 bytes (total 512, permanent 512):
     0 in free list (0 min, 512 max allowed)
     512 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
     512 max cache size, 512 in cache
     0 hits in cache, 0 misses in cache
Normal buffers, 512 bytes (total 2048, permanent 2048):
     2048 in free list (1024 min, 4096 max allowed)
     25855 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)

Private particle pools:
T3 1/0 buffers, 512 bytes (total 640, permanent 640):
     0 in free list (0 min, 640 max allowed)
     640 hits, 0 fallbacks
     640 max cache size, 128 in cache
     163055 hits in cache, 0 misses in cache
     10 buffer threshold, 0 threshold transitions
FastEthernet2/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 0 fallbacks
     400 max cache size, 271 in cache
     224628 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet3/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 0 fallbacks
     400 max cache size, 271 in cache
     4953 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet4/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 25855 fallbacks
     400 max cache size, 271 in cache
     2536395 hits in cache, 25855 misses in cache
     14 buffer threshold, 2782 threshold transitions
FastEthernet5/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 0 fallbacks
     400 max cache size, 271 in cache
     129 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet6/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 0 fallbacks
     400 max cache size, 271 in cache
     129 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet0/0 buffers, 768 bytes (total 529, permanent 400):
     129 in free list (128 min, 1200 max allowed)
     357 hits, 43 fallbacks, 0 trims, 129 created
     0 failures (0 no memory)
     400 max cache size, 272 in cache
     128 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet0/1 buffers, 768 bytes (total 529, permanent 400):
     129 in free list (128 min, 1200 max allowed)
     357 hits, 43 fallbacks, 0 trims, 129 created
     0 failures (0 no memory)
     400 max cache size, 272 in cache
     1679688 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions

Any ideas? This is kicking my ***** and I don't see how to correct this!

Thank You!

  • WAN Routing and Switching
Everyone's tags (3)
3 REPLIES
Hall of Fame Super Gold

Re: 7206VXR 639 input errors, ignored & buffer failures

Error ratio is negligible, and if not increasing, not a reason for concern.

Possibly due to congested output interface.

New Member

Re: 7206VXR 639 input errors, ignored & buffer failures

Thanks for the reply. This morning I went and removed all unused cards and moved the FE from 4/0 to 0/0. I was trying to get the bandwidth points down and they are now.

PCI bus mb0_mb1 (Slots 0, 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb0_mb1 has a total of 490 bandwidth points.
This configuration is within the PCI bus capacity and is supported.

PCI bus mb2 (Slots 2, 4, 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 200 bandwidth points
This configuration is within the PCI bus capacity and is supported.

Thinking this may be my problem. I then reloaded the router after doing the following

process-max-time 50

buffers middle permanent 180
buffers middle max-free 230
buffers middle min-free 50

after a uptime of only 1 hr I have the following.

Buffer elements:
     1118 in free list (1119 max allowed)
     3610407 hits, 0 misses, 619 created

Public buffer pools:
Small buffers, 104 bytes (total 100, permanent 50, peak 100 @ 01:02:30):
     96 in free list (20 min, 150 max allowed)
     1603093 hits, 92 misses, 0 trims, 50 created
     47 failures (0 no memory)
Middle buffers, 600 bytes (total 194, permanent 180, peak 194 @ 01:02:33):
     191 in free list (50 min, 230 max allowed)
     116118 hits, 12 misses, 0 trims, 14 created
     2 failures (0 no memory)
Big buffers, 1536 bytes (total 50, permanent 50):
     49 in free list (5 min, 150 max allowed)
     22717 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 10, permanent 10):
     10 in free list (0 min, 100 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
Large buffers, 5024 bytes (total 0, permanent 0):
     0 in free list (0 min, 10 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
Huge buffers, 18024 bytes (total 0, permanent 0):
     0 in free list (0 min, 4 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)

Interface buffer pools:
Syslog ED Pool buffers, 600 bytes (total 150, permanent 150):
     118 in free list (150 min, 150 max allowed)
     63 hits, 0 misses
IPC buffers, 4096 bytes (total 2, permanent 2):
     2 in free list (1 min, 8 max allowed)
     0 hits, 0 fallbacks, 0 trims, 0 created
     0 failures (0 no memory)

Header pools:
Header buffers, 0 bytes (total 511, permanent 256, peak 511 @ 01:02:44):
     255 in free list (256 min, 1024 max allowed)
     171 hits, 85 misses, 0 trims, 255 created
     0 failures (0 no memory)
     256 max cache size, 256 in cache
     112522 hits in cache, 0 misses in cache

Particle Clones:
     1024 clones, 0 hits, 0 misses
         
Public particle pools:
F/S buffers, 128 bytes (total 512, permanent 512):
     0 in free list (0 min, 512 max allowed)
     512 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
     512 max cache size, 512 in cache
     0 hits in cache, 0 misses in cache
Normal buffers, 512 bytes (total 2048, permanent 2048):
     2048 in free list (1024 min, 4096 max allowed)
     0 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)

Private particle pools:
T3 1/0 buffers, 512 bytes (total 640, permanent 640):
     0 in free list (0 min, 640 max allowed)
     640 hits, 0 fallbacks
     640 max cache size, 128 in cache
     299750 hits in cache, 0 misses in cache
     10 buffer threshold, 0 threshold transitions
FastEthernet2/0 buffers, 512 bytes (total 400, permanent 400):
     0 in free list (0 min, 400 max allowed)
     400 hits, 0 fallbacks
     400 max cache size, 271 in cache
     493017 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet0/0 buffers, 768 bytes (total 529, permanent 400):
     129 in free list (128 min, 1200 max allowed)
     357 hits, 43 fallbacks, 0 trims, 129 created
     0 failures (0 no memory)
     400 max cache size, 272 in cache
     2985665 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions
FastEthernet0/1 buffers, 768 bytes (total 529, permanent 400):
     129 in free list (128 min, 1200 max allowed)
     357 hits, 43 fallbacks, 0 trims, 129 created
     0 failures (0 no memory)
     400 max cache size, 272 in cache
     1006813 hits in cache, 0 misses in cache
     14 buffer threshold, 0 threshold transitions

FastEthernet0/0 is up, line protocol is up
  Hardware is i82543 (Livengood), address is 0007.ece9.3408 (bia 0007.ece9.3408)
  Description: *****

  Internet address is *****

  MTU 1500 bytes, BW 1500000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  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: 0/75/755/3001 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  30 second input rate 898000 bits/sec, 707 packets/sec
  30 second output rate 1124000 bits/sec, 726 packets/sec
     2665171 packets input, 486116439 bytes
     Received 3 broadcasts, 0 runts, 0 giants, 4 throttles
     106 input errors, 0 CRC, 0 frame, 0 overrun, 106 ignored
     0 watchdog
     0 input packets with dribble condition detected
     2805806 packets output, 715519722 bytes, 0 underruns
     4 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     4 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

Customers that are using VoIP are telling us they are dropping calls. The input error and ignored scare me a little.

Hall of Fame Super Gold

Re: 7206VXR 639 input errors, ignored & buffer failures

Try increasing input hold-queue to 150 or 200.

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