Point to Point T1 with Cisco 1841 Routers
- From: jason.polce@xxxxxxxxx
- Date: 10 Apr 2007 10:51:09 -0700
Hey, got a quick question here. I configured a couple of point to
point 1841 routers for a new WAN to our remote office. Everything
worked fine when i tested them here. I shipped the remote router out,
had it hooked up and the circuit came up instantly. I setup monitoring
and that night got a lot of alerts saying the circuit was down. I
checked it in the morning and on my side, the router had a lot of CRC
errors. I made sure framing, linecode, encapsulation was all good.
both sides are using the line clocking etc. Its a full t1 and after
running extended ping tests with a lot of drops i figured the line
wasnt clean. Well Verizon tested the circuit 2 times and they said it
was good. Any ideas? here is a running config and a sh int. Also if i
clear the counters the errors will start to increase again on this
end. Thanks.
Main Router
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
no ip cef
!
!
no ip dhcp use vrf connected
!
!
!
interface FastEthernet0/0
description inside interface
ip address 10.1.99.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
bandwidth 1500
ip address 192.168.101.1 255.255.255.252
encapsulation ppp
!
router ospf 1
log-adjacency-changes
network 10.1.99.0 0.0.0.255 area 0
network 192.168.101.0 0.0.0.3 area 0
!
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 reques
!
access-list 23 permit 10.10.10.0 0.0.0.7
access-list 23 permit 10.0.0.0 0.255.255.255
Serial0/0/0 is up, line protocol is up
Hardware is GT96K with integrated T1 CSU/DSU
Internet address is 192.168.101.1/30
MTU 1500 bytes, BW 1500 Kbit, DLY 20000 usec,
reliability 240/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: CDPCP, IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:19, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:10:35
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1125 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
314 packets input, 28314 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
56 input errors, 56 CRC, 5 frame, 2 overrun, 0 ignored, 3 abort
364 packets output, 26460 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
40Wall-WAN-RT#
40Wall-WAN-RT#
Remote Router
!
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
no ip cef
!
!
no ip dhcp use vrf connected
!
!
!
!
interface FastEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
ip address 10.12.11.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0
bandwidth 1500
ip address 192.168.101.2 255.255.255.252
encapsulation ppp
!
router ospf 1
log-adjacency-changes
network 10.12.11.0 0.0.0.255 area 0
network 192.168.101.0 0.0.0.3 area 0
!
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 requests 10000
!
access-list 23 permit 10.10.10.0 0.0.0.7
access-list 23 permit 10.0.0.0 0.255.255.255
Serial0/0/0 is up, line protocol is up
Hardware is GT96K with integrated T1 CSU/DSU
Internet address is 192.168.101.2/30
MTU 1500 bytes, BW 1500 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: CDPCP, IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:18:49
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1125 kilobits/sec
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
768 packets input, 52763 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
763 packets output, 69578 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
MaidenLn-WAN-RT#
MaidenLn-WAN-RT#
.
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