[asterisk-ss7] Sangoma A102 + Dahdi + libss7 + Asterisk - Linkset DOWN

[Alejandro Mejía Evertsz]

Hi,

 

I have problems, as linkset shows as DOWN all the time with the following
scenario:

 

-Dell server with Sangoma A102 (2 E1/T1 Card)

-Ubuntu Server 8.10

-Dahdi Linux 2.1.0.4

-libss7 1.0.2

-wanpipe 3.4.1

-Asterisk 1.6.1.0

 

===/etc/dahdi/system.conf===

loadzone=us

defaultzone=us

 

#Sangoma A102 port 1 [slot:2 bus:10 span:1] <wanpipe1>

span=1,0,0,ccs,hdb3

bchan=1-15,17-31

echocanceller=mg2,1-15,17-31

hardhdlc=16

 

#Sangoma A102 port 2 [slot:2 bus:10 span:2] <wanpipe2>

span=2,1,0,ccs,hdb3

bchan=32-46,48-62

echocanceller=mg2,32-46,48-62

hardhdlc=47

=======END==============

 

===/etc/asterisk/chan_dahdi.conf===

[trunkgroups]

 

[channels]

context=default

usecallerid=yes

hidecallerid=no

callwaiting=yes

usecallingpres=yes

callwaitingcallerid=yes

threewaycalling=yes

transfer=yes

canpark=yes

cancallforward=yes

callreturn=yes

echocancel=yes

echocancelwhenbridged=yes

relaxdtmf=yes

rxgain=0.0

txgain=0.0

group=1

callgroup=1

pickupgroup=1

immediate=no

 

;Sangoma A102 port 1 [slot:2 bus:10 span:1] <wanpipe1>

context=from-pstn

group=0

echocancel=yes

;switchtype=euroisdn

signalling=ss7

ss7type=itu

linkset = 1

pointcode = 1234

adjpointcode = 4321

defaultdpc = 4132

cicbeginswith = 1

networkindicator=national

sigchan = 16

;sigchannel = 16

channel => 1-15,17-31

 

;Sangoma A102 port 2 [slot:2 bus:10 span:2] <wanpipe2>

context=from-pstn

group=1

echocancel=yes

;switchtype=euroisdn

signalling=ss7

ss7type=itu

linkset = 2

pointcode = 4321

adjpointcode = 1234

defaultdpc = 4132

cicbeginswith = 32

networkindicator=national

sigchan = 47

;sigchannel = 47

channel => 32-46,48-62

=============END=========================

 

As I don’t have an SS7 equipment/link to test, I decided to make a crossover
cable (1<-->4, 2<-->5) and plugged port 1 to port 2 on the same card.

Everything seems to come up correctly, but when I do: ‘ss7 show linkset 1’
it shows as down

 

*CLI> ss7 show linkset 1

SS7 linkset 1 status: Down

 

Even if links on the card, and dahdi status seems ok:

 

*CLI> dahdi show status

Description                              Alarms  IRQ    bpviol CRC4   Fra
Codi Options  LBO

wanpipe1 card 0                          OK      0      0      0      CCS
HDB3 YEL      0 db (CSU)/0-133 feet (DSX-1)

wanpipe2 card 1                          OK      0      0      0      CCS
HDB3 YEL      0 db (CSU)/0-133 feet (DSX-1)

 

When using ss7linktest I get this:

 

# /usr/src/libss7-1.0.2/ss7linktest 16 itu 1234 4321

Starting link 1

Link state change: IDLE -> NOTALIGNED

Len = 4 [ ff ff 01 00 ]

FSN: 127 FIB 1

BSN: 127 BIB 1

>[0] LSSU SIO

 

I have no experience at all using ss7 (I only have used ISDN PRI), so please
be patient if you find I’m doing something totally wrong hehehe.

 

Thanks in advance for your help!

 

Regards,

 

Alejandro Mejía

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