09-11-2003 03:25 PM - edited 03-02-2019 10:17 AM
Hello!
I have a 2610 router with an e1 card model NM-1CE1U. I've connected a channelized E1 where I have 2 circuits of 128K configured and one of 512K to be connected soon, not yet. IOS: 12.3.1a IP only
I'm running HDLC to connect through these circuits with the other end (cisco routers also).
I don't have problems with the E1 frame or the 128K circuits, I know they're working OK (I have tested and proved that with the PTT). The problem is that eventhouhg the serialx/x:x interfaces are up, and protocol is up, I can't get connected with remote router.
sed_e1_teco#sh controller e1
E1 1/0 is up.
Applique type is Channelized E1 - unbalanced
No alarms detected.
alarm-trigger is not set
Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (515 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 6 15 minute intervals):
1 Line Code Violations, 3 Path Code Violations,
0 Slip Secs, 1 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 0 Bursty Err Secs, 1 Severely Err Secs, 0 Unavail Secs
Serial1/0:0 is up, line protocol is up
Hardware is DSX1
Description: Connection to Filaxis 128K
Internet address is 143.159.110.22/30
MTU 1500 bytes, BW 128 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:01, output 00:00:07, output hang never
Last clearing of "show interface" counters 01:38:59
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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
465 packets input, 10543 bytes, 0 no buffer
Received 465 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1065 packets output, 53685 bytes, 0 underruns
0 output errors, 0 collisions, 46 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
Timeslot(s) Used:1-2, Transmitter delay is 0 flags
Serial1/0:1 is up, line protocol is up
Hardware is DSX1
Description: Connection to Atlantico Austral 128K
Internet address is 143.159.109.22/30
MTU 1500 bytes, BW 128 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:02, output 00:00:01, output hang never
Last clearing of "show interface" counters 01:39:00
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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
465 packets input, 10251 bytes, 0 no buffer
Received 465 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1122 packets output, 125319 bytes, 0 underruns
0 output errors, 0 collisions, 44 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
Timeslot(s) Used:3-4, Transmitter delay is 0 flags
sed_e1_teco#sh prot
Global values:
Internet Protocol routing is enabled
Ethernet0/0 is up, line protocol is up
Internet address is y.y.y.y/25
Serial1/0:0 is up, line protocol is up
Internet address is 143.159.110.22/30
Serial1/0:1 is up, line protocol is up
Internet address is 143.159.109.22/30
Serial1/0:2 is up, line protocol is down
Internet address is 143.159.108.22/30
I checked the config several times and I can't find where the problem is. I have also checked the config on the remote routers and it's also OK.
Here is the config of the router with the E1 card:
!
hostname sed_e1_teco
!
enable secret
!
username xxxx password
clock timezone GMT -3
aaa new-model
!
!
ip subnet-zero
ip cef
!
!
!
no ip bootp server
!
!
!
controller E1 1/0
framing NO-CRC4
channel-group 0 timeslots 1-2
channel-group 1 timeslots 3-4
channel-group 2 timeslots 5-12
!
!
interface Ethernet0/0
ip address x.x.x.x 255.255.255.192 secondary
ip address y.y.y.y 255.255.255.128
ip access-group 105 in
half-duplex
!
interface Serial1/0:0
description Connection to Customer 1 128K
bandwidth 128
ip address x.x.110.22 255.255.255.252
ip access-group 105 in
no fair-queue
!
interface Serial1/0:1
description Connection to Customer 2 128K
bandwidth 128
ip address x.x.109.22 255.255.255.252
ip access-group 105 in
no fair-queue
!
interface Serial1/0:2
description Connection to Customer 3 to be connected 512K
bandwidth 512
ip address x.x.108.22 255.255.255.252
ip access-group 105 in
ip policy route-map Customer 3
no fair-queue
no cdp enable
!
no ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 y.y.y.y
ip route x.x.x.x 255.255.255.248 Serial1/0:2
ip route y.y.y.y 255.255.255.248 Serial1/0:0
ip route y.y.y.y 255.255.255.248 Serial1/0:1
!
!
access-list 30 permit x.x.x.x 0.0.0.7
access-list 105 deny 53 any any
access-list 105 deny 55 any any
access-list 105 deny udp any any eq tftp
access-list 105 deny 77 any any
access-list 105 deny pim any any
access-list 105 deny 135 any any
access-list 105 deny udp any any eq netbios-ns
access-list 105 deny udp any any eq netbios-dgm
access-list 105 deny 139 any any
access-list 105 deny tcp any any eq 445
access-list 105 deny udp any any eq 445
access-list 105 deny tcp any any eq 449
access-list 105 deny tcp any any eq 593
access-list 105 deny udp any any range 995 999
access-list 105 deny tcp any any eq 4444
access-list 105 deny udp any any eq 4444
access-list 105 permit ip any any
no cdp run
route-map Customer 3 permit 10
match ip address 30
set ip next-hop x.x.x.x
!
!
!
line con 0
exec-timeout 30 0
password
line aux 0
password
line vty 0 4
transport output telnet
!
!
!
end
This is the serial int config for the Customer 1:
interface Serial0
description Connection to ISP rtr s1/0:0
bandwidth 128
ip address x.x.110.21 255.255.255.252
no ip route-cache
no ip mroute-cache
no fair-queue
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0
This is the serial int config for the Customer 2:
interface Serial0
description Connection to ISP rtr s1/0:1
bandwidth 128
ip address x.x.109.21 255.255.255.252
no ip route-cache
no ip mroute-cache
no fair-queue
!
ip classless
ip route 0.0.0.0 0.0.0.0 143.159.109.22
Any help will be really appreciated!!!!
Thanks.
Mariana
09-16-2003 05:40 AM
Hi,
Are u able to ping from ur end to customer end..from ur router..??Are u facing problems in only telnetting the remote router???
pls clarify it...
Amit Shrivastava
09-16-2003 06:09 AM
Hello Amit!
Thank you for your reply.
No, I'm not able to ping neither. I tried it, pinging from my router to the other end but with no results.
The serialx/x:x is up and protocol is up but if I do a ping to the ip address of the remote serial, I receive time-out. With a trace, it stops at the first hop, as if my router were not able to route, as if internet protocol is not running... really strange, because it is running.
Any comments or suggestion will be really appreciated!
Thank you!
Mariana
09-18-2003 05:20 AM
Assuming you've tried removing the accesst list from the interface
09-18-2003 07:07 AM
Tony! thanks for your suggestion, but yes, I've tried removing the access list... with no luch :0(
I've also tried changing the E1 card of router. I moved the card to a 3600 router, I've seen the same behaivor... I'm staring thinking this an E1 card problem.. what do you think?
09-18-2003 11:31 PM
Hi Mariana
Please, can you post the output from
'sh int ser1/0:2' of your central router and the config at Customer3's router (that doesn't work). I think this the last we need to troubleshoot your problem.
Anyway I think problem comes from a IP routing misconfiguration. I've seen you've configured policy routing for Customer3. Can you do a 'sh route-map' to see if there are any plicy rouitng matches ?
09-19-2003 05:01 AM
Hello! thanks for your answer.
Note that there is no circuit connected on int ser1/0:2 yet. So this interface is down/down. I configured policy map just for this customer, as you can see on the config, the policy route-map sentence is JUST configured on serial1/0:2.
There are circuits connected just on serial1/0:0 and serial1/0:1, with NO policy route-map configured. These serials are up/up, but when I try to reach the remote routers (pinging to the ip address configured on the remote serial) I don't receive response... as you can see the config is quite simple.
Do you think that the route-map on Cust3 (serial1/0:2) is causing this problem?
09-20-2003 09:21 PM
Hi,
I suggest that you try to perform BERT test so you be shore about your line , and more over try to be offered loop towards your router ser1/0:0 and try to ping for reachability
09-19-2003 05:22 AM
Hello Mariana
Maybe this is a silly thought, but try to swap the ip adresses on the s1/0:0 and s1/0:1 just to verify that the PTT hasn't done a misconfiguration with wich timeslot to go where.
Mike
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