Re: Excessive interface resets on Cisco 1841 and FIOS line

On Feb 6, 5:18 pm, leve...@xxxxxxxxx wrote:
Hello everyone,

I have a Cisco 1841 that is hooked up to a FIOS line. I am getting a
huge amount of interface resets on the WAN interface, cannot figure
out why. Any ideas would be highly appreciated. The sh run and sh int
are below.

Thanks, Arthur.

Router#sh run
Building configuration...

Current configuration : 4179 bytes
!
version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname Router
!
boot-start-marker
boot-end-marker
!
security authentication failure rate 3 log
security passwords min-length 6
logging buffered 51200
logging console critical
enable secret 5
!
aaa new-model
!
!
aaa authentication login local_authen local
aaa authorization exec local_author local
!
!
aaa session-id common
memory-size iomem 5
no ip source-route
ip cef
!
!
!
!
no ip bootp server
multilink bundle-name authenticated
!
crypto pki trustpoint TP-self-signed-1875086813
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1875086813
revocation-check none
rsakeypair TP-self-signed-1875086813
!
!
crypto pki certificate chain TP-self-signed-1875086813
certificate self-signed 01
3082023E 308201A7 A0030201 02020101 300D0609 2A864886 F70D0101
04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D
43657274
69666963 6174652D 31383735 30383638 3133301E 170D3038 30313235
30333035
31315A17 0D323030 31303130 30303030 305A3031 312F302D 06035504
03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31
38373530
38363831 3330819F 300D0609 2A864886 F70D0101 01050003 818D0030
81890281
81009D3B 9DB65BBE DB1FC4BF 40C33D28 F887F1F1 044CDE60 2278E968
210DA767
59FAD375 07E94C10 941AAF01 FCCD51AA 98D85AD5 9118DA17 0EA616EF
E4867A3A
71E75D13 0AB628B7 18ABADF5 A7B6182C 89A51BD9 4B4A92DB 2C0771F9
5C362A16
E6093A3E 38A40EBB FC6C7F77 47B51851 1DB62240 3E61B352 701C6F94
7793F829
10C50203 010001A3 66306430 0F060355 1D130101 FF040530 030101FF
30110603
551D1104 0A300882 06526F75 74657230 1F060355 1D230418 30168014
49C0AEAD
BB0FBACB 7DE8391E B011D322 4B5E0C30 301D0603 551D0E04 16041449
C0AEADBB
0FBACB7D E8391EB0 11D3224B 5E0C3030 0D06092A 864886F7 0D010104
05000381
81008D87 34D17DE1 7D30C941 FA521365 8EB5A043 F6C211D8 91C70641
9F94C4CB
9759FF0F DF0CA56E 872FB1EF 271010BC E0FE6EEC F52CDB8E 35EB896F
266F2644
D0CAE6FB 4044B085 AD6DCE1B C06645B7 1436DE52 FD30303B 78570CCC
8A2BFB24
DC4E933E 763BD91F B7C44089 2F47B568 CB34D267 BE39B10E 659EE703
69A02045 C7C4
quit
!
!

archive
log config
hidekeys
!
!
ip tcp synwait-time 10
!
!
!
interface Null0
no ip unreachables
!
interface FastEthernet0/0
description $FW_OUTSIDE$
ip address dhcp client-id FastEthernet0/0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
ip route-cache flow
duplex auto
speed auto
no cdp enable
no mop enabled
!
interface FastEthernet0/1
description $FW_INSIDE$
ip address 192.168.1.10 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly
ip route-cache flow
speed 100
full-duplex
no cdp enable
no mop enabled
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 dhcp
!
!
ip http server
ip http access-class 4
ip http authentication local
ip http secure-server
ip http timeout-policy idle 600 life 86400 requests 10000
ip nat inside source list 1 interface FastEthernet0/0 overload
!
logging trap debugging
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 2 permit 192.168.1.33
access-list 4 remark HTTP Access-class list
access-list 4 remark SDM_ACL Category=1
access-list 4 permit 192.168.1.0 0.0.0.255
access-list 4 deny any
no cdp run
!
!
control-plane
!
banner login ^CLog Off!^C
!
line con 0
login authentication local_authen
transport output telnet
line aux 0
login authentication local_authen
transport output telnet
line vty 0 4
access-class 2 in
privilege level 15
authorization exec local_author
login authentication local_authen
transport input telnet ssh
!
scheduler allocate 20000 1000
end

Router#sh int
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE
Description: $FW_OUTSIDE$
Internet address is REMOVED
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 10/255
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 00:00:05, 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)
5 minute input rate 4099000 bits/sec, 568 packets/sec
5 minute output rate 178000 bits/sec, 306 packets/sec
618093632 packets input, 1102765327 bytes
Received 3 broadcasts, 4 runts, 0 giants, 0 throttles
501 input errors, 501 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
314677217 packets output, 1892616249 bytes, 0 underruns
0 output errors, 0 collisions, 2566 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE
Description: $FW_INSIDE$
Internet address is 192.168.1.10/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 10/255, 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: 2/75/0/0 (size/max/drops/flushes); Total output drops:
0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 188000 bits/sec, 306 packets/sec
5 minute output rate 4097000 bits/sec, 569 packets/sec
314856276 packets input, 3309471917 bytes
Received 298452 broadcasts, 137514 runts, 0 giants, 0 throttles
435829 input errors, 435829 CRC, 280 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
618176271 packets output, 837991282 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
NVI0 is up, line protocol is up
Hardware is NVI
Interface is unnumbered. Using address of NVI0 (0.0.0.0)
MTU 1514 bytes, BW 10000000 Kbit, DLY 0 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation UNKNOWN, loopback not set
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
0
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Router#

My first suggestion would be to check to physical connections. I would
replace cat5 cable. I'm not sure what FIOS uses at the DeMarc, but you
could check out that hardware as well.
.

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