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Cisco 4000series Router Interface High Error Rate

dpsw120
Level 1
Level 1

Hello all,

 

Recently i got pretty regular alert from zabbix monitoring my cisco router, the error was interface high error rate.

Did someone have the same proble like me? this is my show interface output

sh interfaces g0/0/1
GigabitEthernet0/0/1 is up, line protocol is up
  Hardware is ISR4321-2x1GE, address is xxxx.xxxx.xxxx (bia xxxx.xxxx.xxxx)
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 6/255, rxload 23/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Keepalive not supported
  Full Duplex, 1000Mbps, link type is auto, media type is RJ45
  output flow-control is off, input 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 never
  Input queue: 0/375/20625134/482628 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Class-based queueing
  Output queue: 0/40 (size/max)
  5 minute input rate 90379000 bits/sec, 10108 packets/sec
  5 minute output rate 26204000 bits/sec, 6520 packets/sec
     65778178381 packets input, 66651797018095 bytes, 3275 no buffer
     Received 10346060 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     1123010 input errors, 0 CRC, 0 frame, 1123010 overrun, 0 ignored
     0 watchdog, 145411535 multicast, 0 pause input
     58811548656 packets output, 50325525008448 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     135386 unknown protocol drops
     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
15 Replies 15

Leo Laohoo
Hall of Fame
Hall of Fame

@dpsw120 wrote:
Full Duplex, 1000Mbps, link type is auto, media type is RJ45

RJ45 and the duplex and speed are hard-coded.  
What are the chances that the errors are due to duplex mismatch?

the devices connecting to it's switch and this is from the switch port that connect to that router

sh interfaces configuration g25
                                               Flow    Admin     Back   Mdix
Port     Type         Duplex  Speed  Neg      control  State   Pressure Mode
-------- ------------ ------  -----  -------- -------  -----   -------- ----
gi25     1G-Combo-C   Full    1000   Enabled  Off      Up      Disabled Auto

  and my g0/0/1 has sub interfaces on it.

Post the complete output (minus the description &/or IP addresses) to the following command:

sh run interface Gi 0/0/1

 

 

no ip add on it

#sh run int gi 0/0/1
Building configuration...

Current configuration : 249 bytes
!
interface GigabitEthernet0/0/1
 no ip address
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip nbar protocol-discovery
 negotiation auto
 no mop enabled
 service-policy input WEBUI-MARKING-IN
 service-policy output WEBUI-QUEUING-OUT
end

marce1000
VIP
VIP

 

 - Check software version being used, if applicable use a gold-starred or an advisory release, especially if current version is rather old.

 M.



-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
    When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

im using this version isr4300-universalk9.16.09.05.SPA.bin

Hello,

 

what device is connected to interface GigabitEthernet0/0/1 ? It might also help to see the QoS you have applied:

 

service-policy input WEBUI-MARKING-IN
service-policy output WEBUI-QUEUING-OUT

 

Also, post the output of:

 

show buffers

the device connected to that interfaces is switch sg350.

 

i think this qos referring to web-ui

service-policy input WEBUI-MARKING-IN
service-policy output WEBUI-QUEUING-OUT

this is the config

class-map match-all WEBUI-MULTIMEDIA_CONFERENCING-DSCP
 match dscp af41
class-map match-all WEBUI-BROADCAST_VIDEO-NBAR
 match protocol attribute traffic-class broadcast-video
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-VOICE-NBAR
 match protocol attribute traffic-class voip-telephony
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-BULK_DATA-NBAR
 match protocol attribute traffic-class bulk-data
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-SIGNALING-NBAR
 match protocol attribute traffic-class signaling
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-NETWORK_CONTROL-DSCP
 match dscp cs6
class-map match-all WEBUI-SCAVENGER-NBAR
 match protocol attribute business-relevance business-irrelevant
class-map match-all WEBUI-SCAVENGER-DSCP
 match dscp cs1
class-map match-all WEBUI-NETWORK_CONTROL-NBAR
 match protocol attribute traffic-class network-control
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-SIGNALING-DSCP
 match dscp cs3
class-map match-all WEBUI-BULK_DATA-DSCP
 match dscp af11
class-map match-all WEBUI-BROADCAST_VIDEO-DSCP
 match dscp cs5
class-map match-all WEBUI-MULTIMEDIA_CONFERENCING-NBAR
 match protocol attribute traffic-class multimedia-conferencing
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-VOICE-DSCP
 match dscp ef
class-map match-all WEBUI-NETWORK_MANAGEMENT-NBAR
 match protocol attribute traffic-class ops-admin-mgmt
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-MULTIMEDIA_STREAMING-DSCP
 match dscp af31
class-map match-all WEBUI-REALTIME_INTERACTIVE-NBAR
 match protocol attribute traffic-class real-time-interactive
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-TRANSACTIONAL_DATA-DSCP
 match dscp af21
class-map match-all WEBUI-REALTIME_INTERACTIVE-DSCP
 match dscp cs4
class-map match-all WEBUI-TRANSACTIONAL_DATA-NBAR
 match protocol attribute traffic-class transactional-data
 match protocol attribute business-relevance business-relevant
class-map match-all WEBUI-NETWORK_MANAGEMENT-DSCP
 match dscp cs2
class-map match-all WEBUI-MULTIMEDIA_STREAMING-NBAR
 match protocol attribute traffic-class multimedia-streaming
 match protocol attribute business-relevance business-relevant
!
policy-map WEBUI-MARKING-IN
 class WEBUI-VOICE-NBAR
  set dscp ef
 class WEBUI-BROADCAST_VIDEO-NBAR
  set dscp cs5
 class WEBUI-REALTIME_INTERACTIVE-NBAR
  set dscp cs4
 class WEBUI-MULTIMEDIA_CONFERENCING-NBAR
  set dscp af41
 class WEBUI-MULTIMEDIA_STREAMING-NBAR
  set dscp af31
 class WEBUI-SIGNALING-NBAR
  set dscp cs3
 class WEBUI-NETWORK_CONTROL-NBAR
  set dscp cs6
 class WEBUI-NETWORK_MANAGEMENT-NBAR
  set dscp cs2
 class WEBUI-TRANSACTIONAL_DATA-NBAR
  set dscp af21
 class WEBUI-BULK_DATA-NBAR
  set dscp af11
 class WEBUI-SCAVENGER-NBAR
  set dscp cs1
 class class-default
  set dscp default
policy-map WEBUI-QUEUING-OUT
 class WEBUI-VOICE-DSCP
  priority percent 10
 class WEBUI-BROADCAST_VIDEO-DSCP
  priority percent 10
 class WEBUI-REALTIME_INTERACTIVE-DSCP
  priority percent 13
 class WEBUI-NETWORK_CONTROL-DSCP
  bandwidth percent 2
 class WEBUI-SIGNALING-DSCP
  bandwidth percent 2
 class WEBUI-NETWORK_MANAGEMENT-DSCP
  bandwidth percent 3
 class WEBUI-MULTIMEDIA_CONFERENCING-DSCP
  bandwidth percent 10
  fair-queue
  random-detect dscp-based
 class WEBUI-MULTIMEDIA_STREAMING-DSCP
  bandwidth percent 10
  fair-queue
  random-detect dscp-based
 class WEBUI-TRANSACTIONAL_DATA-DSCP
  bandwidth percent 10
  fair-queue
  random-detect dscp-based
 class WEBUI-BULK_DATA-DSCP
  bandwidth percent 4
  fair-queue
  random-detect dscp-based
 class WEBUI-SCAVENGER-DSCP
  bandwidth percent 1
 class class-default
  bandwidth percent 25
  fair-queue
  random-detect dscp-based

this si show buffer output

show buffers
Buffer elements:
     865 in free list
     100425222 hits, 0 misses, 1019 created

Public buffer pools:
Small buffers, 104 bytes (total 1200, permanent 1200):
     1199 in free list (200 min, 2500 max allowed)
     84554236 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
Middle buffers, 600 bytes (total 2000, permanent 900, peak 2546 @ 5d21h):
     1997 in free list (100 min, 2000 max allowed)
     79036446 hits, 497170 misses, 85422 trims, 86522 created
     328321 failures (0 no memory)
Big buffers, 1536 bytes (total 900, permanent 900, peak 1059 @ 3w1d):
     900 in free list (50 min, 1800 max allowed)
     35370005 hits, 18309 misses, 3214 trims, 3214 created
     14171 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 100, permanent 100, peak 110 @ 4w3d):
     100 in free list (0 min, 300 max allowed)
     2783528 hits, 9485 misses, 62 trims, 62 created
     9485 failures (0 no memory)
Large buffers, 5024 bytes (total 100, permanent 100, peak 109 @ 4w3d):
     100 in free list (0 min, 300 max allowed)
     52978 hits, 5951 misses, 42 trims, 42 created
     5951 failures (0 no memory)
VeryLarge buffers, 8264 bytes (total 100, permanent 100, peak 109 @ 4w3d):
     100 in free list (0 min, 300 max allowed)
     3105247 hits, 3677 misses, 29 trims, 29 created
     3677 failures (0 no memory)
Huge buffers, 18024 bytes (total 20, permanent 20, peak 30 @ 4w3d):
     20 in free list (0 min, 33 max allowed)
     347 hits, 3330 misses, 27 trims, 27 created
     3330 failures (0 no memory)

Interface buffer pools:
CF Small buffers, 104 bytes (total 101, permanent 100, peak 101 @ 4w3d):
     101 in free list (100 min, 200 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
Generic ED Pool buffers, 512 bytes (total 101, permanent 100, peak 101 @ 4w3d):
     101 in free list (100 min, 100 max allowed)
     0 hits, 0 misses
CF Middle buffers, 600 bytes (total 101, permanent 100, peak 101 @ 4w3d):
     101 in free list (100 min, 200 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
Syslog ED Pool buffers, 600 bytes (total 1057, permanent 1056, peak 1057 @ 4w3d):
     1025 in free list (1056 min, 1056 max allowed)
     2561997 hits, 0 misses
EOBC0 buffers, 1524 bytes (total 256, permanent 256):
     256 in free list (0 min, 256 max allowed)
     0 hits, 0 fallbacks
CF Big buffers, 1536 bytes (total 26, permanent 25, peak 26 @ 4w3d):
     26 in free list (25 min, 50 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
IPC buffers, 4096 bytes (total 378, permanent 378):
     377 in free list (126 min, 1260 max allowed)
     1 hits, 0 fallbacks, 0 trims, 0 created
     0 failures (0 no memory)
CF VeryBig buffers, 4520 bytes (total 3, permanent 2, peak 3 @ 4w3d):
     3 in free list (2 min, 4 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
CF Large buffers, 5024 bytes (total 2, permanent 1, peak 2 @ 4w3d):
     2 in free list (1 min, 2 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
IPC Medium buffers, 16384 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)
Private Huge IPC buffers, 18024 bytes (total 1, permanent 0, peak 1 @ 4w3d):
     1 in free list (0 min, 4 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
Private Huge buffers, 65280 bytes (total 1, permanent 0, peak 1 @ 4w3d):
     1 in free list (0 min, 4 max allowed)
     0 hits, 0 misses, 281 trims, 282 created
     0 failures (0 no memory)
IPC Large buffers, 65535 bytes (total 17, permanent 16, peak 17 @ 4w3d):
     17 in free list (16 min, 16 max allowed)
     0 hits, 0 misses, 45464 trims, 45465 created
     0 failures (0 no memory)

Header pools:
Header buffers, 0 bytes (total 266, permanent 256, peak 266 @ 4w3d):
     10 in free list (10 min, 512 max allowed)
     253 hits, 3 misses, 0 trims, 10 created
     0 failures (0 no memory)
     256 max cache size, 256 in cache
     49688682 hits in cache, 0 misses in cache

Particle Clones:
     1024 clones, 0 hits, 0 misses

Public particle pools:
F/S buffers, 256 bytes (total 384, permanent 384):
     128 in free list (128 min, 1024 max allowed)
     256 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
     256 max cache size, 256 in cache
     0 hits in cache, 0 misses in cache
Normal buffers, 512 bytes (total 512, permanent 512):
     384 in free list (128 min, 1024 max allowed)
     128 hits, 0 misses, 0 trims, 0 created
     0 failures (0 no memory)
     128 max cache size, 128 in cache
     0 hits in cache, 0 misses in cache

Private particle pools:
lsmpi_rx buffers, 416 bytes (total 8194, permanent 8194):
     0 in free list (0 min, 8194 max allowed)
     8194 hits, 0 misses
     8194 max cache size, 0 in cache
     124419397 hits in cache, 0 misses in cache
lsmpi_tx buffers, 416 bytes (total 4098, permanent 4098):
     0 in free list (0 min, 4098 max allowed)
     4098 hits, 0 misses
     4098 max cache size, 4097 in cache
     50391337 hits in cache, 0 misses in cache

Hello,

 

I would remove the 'random-detect' from the classes:

 

 

class WEBUI-MULTIMEDIA_CONFERENCING-DSCP
bandwidth percent 10
fair-queue
--> no random-detect dscp-based
class WEBUI-MULTIMEDIA_STREAMING-DSCP
bandwidth percent 10
fair-queue
--> no random-detect dscp-based
class WEBUI-TRANSACTIONAL_DATA-DSCP
bandwidth percent 10
fair-queue
--> no random-detect dscp-based
class WEBUI-BULK_DATA-DSCP
bandwidth percent 4
fair-queue
--> no random-detect dscp-based
class WEBUI-SCAVENGER-DSCP
bandwidth percent 1
class class-default
bandwidth percent 25
fair-queue
--> no random-detect dscp-based

 

Also, try some buffer tuning, starting with the values below (these values double the buffers you currently have), and check if the errors decrease:

 

buffers middle max-free 4000
buffers middle min-free 200
buffers middle permanent 1800
!
buffers big max-free 3600
buffers big min-free 100
buffers big permanent 1800
!
buffers verybig max-free 600
buffers verybig min-free 100
buffers verybig permanent 200
!
buffers large max-free 600
buffers large min-free 100
buffers large permanent 200
!
buffers verylarge max-free 600
buffers verylarge min-free 100
buffers verylarge permanent 200
!
buffers huge max-free 66
buffers huge min-free 20
buffers huge permanent 40

thank you sir i apply this to my second router and see what happens, because this problem occours in both routers.

if nothing appears in the second router then ill apply to my first router and report back to this forum.

hello sir after changing the buffers on both router an alert 'interface high error rate' still appear


@dpsw120 wrote:
1123010 input errors, 0 CRC, 0 frame, 1123010 overrun, 0 ignored

This is a switch? 

That is a Layer 1 issue.

this is router interface connected to the switch

Can you check and make sure the switch link does not have speed and duplex hard-coded?

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