ISDN Primary E1 is UP but no data calls, how to connect ISDN-Bri in branch to ISDN-Pri in the Headqu...

vistaprogrammer · ‎12-01-2015

ISDN Primary E1 is UP but no data calls, how to connect ISDN-Bri in branch to ISDN-Pri in the Headquarter

Network Infrastructure --- WAN Switching and Routing

i have the following Scenario : our branches have ISDN bri and should connect to the Headquarter Data center which has ISDN Pri /E1 connection:

-- on the branch , i have (Leased line as primary line and ISDN bri as backup line for data)and the following config :

router-2911#show run
-----
isdn switch-type basic-net3
interface Serial0/0/0
bandwidth 256
backup delay 30 30
backup interface BRI0/2/0
ip address 10.52.10.26 255.255.255.248

!
interface Serial0/0/1
no ip address
shutdown
clock rate 2000000
!
interface BRI0/2/0
bandwidth 128
no ip address
encapsulation ppp

dialer pool-member 20
isdn switch-type basic-net3
isdn point-to-point-setup
!

!
interface Dialer20
bandwidth 128
ip address 10.52.30.41 255.255.255.0
encapsulation ppp
dialer pool 20
dialer remote-name 3845-1-Freezone
dialer string 0112181706
dialer string 0112181707
dialer caller 0112181706
dialer caller 0112181707
dialer-group 1
ppp authentication chap callin
ppp chap hostname HO
ppp chap password 7 (hidden)

ip route 0.0.0.0 0.0.0.0 10.52.10.25
ip route 0.0.0.0 0.0.0.0 Dialer20 10

dialer-list 1 protocol ip permit any

- on the Head office , i have (Leased line as primary line and ISDN PRI/E1 as backup line for data)and the following config :
Physical connection for ISDN PRI E1 is from the CO to Patton 3088k - Line Port (straight through cable) and from Patton 3088k - Interface Port to the router (NM-1CT1E1-Pri)using E1 cross-over(1-4,2-5 and 4-1,5-2)
3845-1-Freezone#show run
-----

card type e1 1
username HO password 7 (hidden)
controller E1 1/0
pri-group timeslots 1-31
description * E1 ISDN PRI Connection *

interface Serial0/0/0
description Main Connection
bandwidth 2048
ip address 10.52.10.2 255.255.255.252

isdn switch-type primary-net5
interface Serial1/0:15
ip address 10.52.30.55 255.255.255.0
encapsulation ppp
dialer-group 2
isdn switch-type primary-net5
isdn incoming-voice data
ppp authentication chap callin
!

ip route 0.0.0.0 0.0.0.0 10.52.10.1
ip route 0.0.0.0 0.0.0.0 Serial1/0:15 10

dialer-list 2 protocol ip permit any

regarding the ISDN PRI E1
3845-1-Freezone#show controller e1
E1 1/0 is up.
Applique type is Channelized E1 - balanced
Description: * E1 ISDN PRI Connection *
No alarms detected.
alarm-trigger is not set
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Module type is Channelized E1/T1 PRI
Version info Firmware: 0000001D, FPGA: C
Hardware revision is 0.0 , Software revision is 29
Protocol revision is 1
number of CLI resets is 0
receive remote alarm : 0,
transmit remote alarm : 0,
receive AIS alarm : 0,
transmit AIS alarm : 0,
loss of frame : 0,
loss of signal : 0,
Loopback test : 0,
transmit AIS in TS 16 : 0,
receive LOMF alarm : 0,
transmit LOMF alarm : 0,
MIB data updated every 10 seconds.
Data in current interval (626 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 25 15 minute intervals):
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, 7 Unavail Secs

3845-1-Freezone#show isdn status
Global ISDN Switchtype = primary-net5
ISDN Serial1/0:15 interface
dsl 0, interface ISDN Switchtype = primary-net5
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = AWAITING_ESTABLISHMENT
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0xFFFF7FFF
Number of L2 Discards = 0, L2 Session ID = 37
Total Allocated ISDN CCBs = 0

and regard the debugging :

3845-1-Freezone#un all
All possible debugging has been turned off
3845-1-Freezone#term mon
3845-1-Freezone#debug isdn q921
debug isdn q921 is ON.
3845-1-Freezone#
*Dec 2 04:28:26.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:32.078: ISDN Se1/0:15 Q921: L2_EstablishDataLink: sending SABME
*Dec 2 04:28:32.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:33.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:34.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:35.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:41.078: ISDN Se1/0:15 Q921: L2_EstablishDataLink: sending SABME
*Dec 2 04:28:41.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:42.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:43.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:44.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:50.078: ISDN Se1/0:15 Q921: L2_EstablishDataLink: sending SABME
*Dec 2 04:28:50.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:51.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:52.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 04:28:53.078: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0

i believe there is a problem in ISDN Layer2 (the Layer 2 Status doesn't go to MULTIPLE_FRAME_ESTABLISHED ), but i am lost ...please help?

thank you very much

Amit Goyal · ‎12-02-2015

Hi,

This is definately to do something with signaling. Your D channel should receive signaling from ISP and same you must recieve. Once it is through Layer 2 will become "MULTIPLE_FRAME_ESTABLISHED"

>You may try to configure "network-clock-participate wic 1" and network-clock-select E1 1/0 1". check if it helps.

>If not try checking line connectivity. You may also check with your ISP and they can guide if they are receiving signaling from your end or not.

HTH

-Amit

Richard Burts · ‎12-02-2015

The debug output shows multiple times when you send and shows nothing being received. I would definitely ask the provider to help you check this connection. I think I saw something similar to this which turned out to be that the PRI was provisioned for voice calls and would not accept a data connection attempt.

HTH

Rick

HTH

Rick

vistaprogrammer · ‎12-02-2015

really i appreciate your answer and i will check again with my provider

but quick question , i tried

3845-1-Freezone(config)#interface Serial1/0:15
3845-1-Freezone(config-if)#isdn incoming-voice ?
data Incoming voice calls will be handled as data.
modem Incoming voice calls will be handled as modems.
voice Incoming voice calls will be handled as voice.

3845-1-Freezone(config-if)#isdn incoming-voice voice

and i tried the debug again and i got the same result

3845-1-Freezone#term mon
3845-1-Freezone#debug isdn q921
debug isdn q921 is ON.
3845-1-Freezone#
*Dec 2 23:00:04.053: ISDN Se1/0:15 Q921: L2_EstablishDataLink: sending SABME
*Dec 2 23:00:04.053: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 23:00:05.053: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 23:00:06.053: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 23:00:07.053: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0
*Dec 2 23:00:13.053: ISDN Se1/0:15 Q921: L2_EstablishDataLink: sending SABME
*Dec 2 23:00:13.053: ISDN Se1/0:15 Q921: User TX -> SABMEp sapi=0 tei=0

in case my provider has provisioned my isdn as voice and i accept the voice on my serial connection why i am still sending , not receiving ?

Richard Burts · ‎12-02-2015

You have shown us only a very limited part of the config of your router. But I strongly suspect that it is not configured to handle voice calls (DSPs, dial patterns, etc) but to use the PRI for data. I do not believe that setting the incoming voice parameter is sufficient. I still think that you need to work with the provider to check out the circuit and checking for provisioning of data or voice is one of several things that they should check.

HTH

Rick

HTH

Rick

vistaprogrammer · ‎12-03-2015

Dear All,

Congratulations ........OOOOOH thank you All , Thank you Cisco for this support site

you were great and you helped me in your notes ....

what i did ? is the follwoing , of course was from the ISP(Provider) in somewhat

in my country we are still using modem like (Patton 3088K) for this PRI /E1 in my side

and the issue is to configure the DIPs of the switches of this Patton as following :

S1: 1-5(On),6(Off),7-8(On)

S2 :1-3(Off),4(On),5(Off),6-7(On),8(Off)

and this is a link for the DIP meaning :

https://www.patton.com/manuals/3088.pdf

i am happy now and you helped me to be happy (thank you Amit Goyal,Richard Burts,acampbell ) and of course Thank you cisco for this fantastic support site

Amit Goyal · ‎12-03-2015

Hi,

If you like our comments please rate them so that it can help others too.

Regards

-Amit

Richard Burts · ‎12-03-2015

Thank you for posting to the forum and letting us know that you have resolved the issue. While we had not suggested this particular thing it certainly makes sense that incorrect settings on the modem could interfere with communications between you and the provider. Glad that you have resolved this.

HTH

Rick

HTH

Rick

vistaprogrammer · ‎12-02-2015

HI,

thank you very much for your kind answer ,

what's more i check the network module slot :

3845-1-Freezone#show diag

to check network module with its slot

Slot 1:
NM-1CE1T1_PRI Port adapter, 1 port
Port adapter is analyzed
Port adapter insertion time 1d00h ago

then i tried
3845-1-Freezone(config)#network-clock-participate slot 1
Slot is empty or does not support clock participate

also i tried

3845-1-Freezone(config)# network-clock-select 1 e1 1/0/?
<4294967295-0> Controller port number

3845-1-Freezone(config)# network-clock-select 1 e1 1/0/0
^
% Invalid input detected at '^' marker.

3845-1-Freezone(config)# network-clock-select 1 e1 1/0?
/ :

3845-1-Freezone(config)# network-clock-select 1 e1 1/0:?
<0-0> Controller port number

3845-1-Freezone(config)# network-clock-select 1 e1 1/0:0
^
% Invalid input detected at '^' marker.

also this

3845-1-Freezone(config)# network-clock-select 1 e1 1/0
% Incomplete command.

please note that my e1 is configured as shown before :

card type e1 1

controller E1 1/0

really i am lost since our ISP doesn't provide too much information ...anyways i will double check them again

acampbell · ‎12-02-2015

Hi,

Under your serial interface can you try changing from the default user mode to network mode

!
interface ser 1/0:15
shut
isdn protocol-emulate network
no shut
!
end

show isdn status

Regards
Alex

Regards, Alex. Please rate useful posts.

vistaprogrammer · ‎12-03-2015

Dear All,

Congratulations ........OOOOOH thank you All , Thank you Cisco for this support site

you were great and you helped me in your notes ....

what i did ? is the follwoing , of course was from the ISP(Provider) in somewhat

in my country we are still using modem like (Patton 3088K) for this PRI /E1 in my side

and the issue is to configure the DIPs of the switches of this Patton as following :

S1: 1-5(On),6(Off),7-8(On)

S2 :1-3(Off),4(On),5(Off),6-7(On),8(Off)

and this is a link for the DIP meaning :

https://www.patton.com/manuals/3088.pdf

i am happy now and you helped me to be happy (thank you Amit Goyal,Richard Burts,acampbell ) and of course Thank you cisco for this fantastic support site

vistaprogrammer · ‎12-03-2015

Dear All,

Congratulations ........OOOOOH thank you All , Thank you Cisco for this support site

you were great and you helped me in your notes ....

what i did ? is the follwoing , of course was from the ISP(Provider) in somewhat

in my country we are still using modem like (Patton 3088K) for this PRI /E1 in my side

and the issue is to configure the DIPs of the switches of this Patton as following :

S1: 1-5(On),6(Off),7-8(On)

S2 :1-3(Off),4(On),5(Off),6-7(On),8(Off)

and this is a link for the DIP meaning :

https://www.patton.com/manuals/3088.pdf

i am happy now and you helped me to be happy (thank you Amit Goyal,Richard Burts,acampbell ) and of course Thank you cisco for this fantastic support site