RE: [nsp] configuring 2 D channels(T1) for 2 or more T1's on as53 00

From: Young, Jason (Jason.Young@anheuser-busch.com)
Date: Thu Aug 02 2001 - 09:48:01 EDT


Your config looks reasonable to me. Either the telco has not set it up with NFAS
at all or NFAS the way you expected (which is a very real and common
possibility), or your version of IOS is broken in this regard (which is also
possible, considering the tracebacks).

You should not expect to see a Serial1:23 interface. A NFAS group is treated as
exactly one configurable element, controlled by a single D channel. You don't
need to configure the backup D channel. It assumes the same config as the
primary if it becomes active.

If you want further troubleshooting help, send us a "show version" output. Also,
send the output of "debug isdn events" and "debug isdn q931" as these PRIs are
coming up with the NFAS config - i.e., shut down the PRIs, turn those debugs on,
reconfigure them, no shut them and record the output.

You may want to open a TAC case and ask about those tracebacks. It's generally
not a good thing to be getting tracebacks. You may be running a bleeding-edge or
broken IOS that you shouldn't be.

Jason Young
CNS - Network Design, Anheuser-Busch
(314)577-4597

> -----Original Message-----
> From: Dave [mailto:dave@nexusinternetsolutions.net]
> Sent: Thursday, August 02, 2001 5:42 AM
> To: Young, Jason; cisco-nsp@puck.nether.net
> Subject: RE: [nsp] configuring 2 D channels(T1) for 2 or more T1's on
> as5300
>
>
> Problem being experienced is when we switch from standard to
> nfas we lose dialup
> connecticity... ie the as5300 no longer responds to calls.
>
> We are not getting a d channel interface (serial 1:23)
> created for the second
> t1, and in reverting back to the original (potentially
> seperate or related
> issue) we received the following
>
> Aug 2 06:22:26.966 EDT: %CSM-5-PRI: delete PRI at slot 0,
> unit 0, channel 23
> with index 0i timeslots 1-
> Aug 2 06:22:41.470 EDT: %ALIGN-3-SPURIOUS: Spurious memory
> access made at
> 0x600C1D00 reading 0x11DA
> Aug 2 06:22:41.470 EDT: %ALIGN-3-TRACE: -Traceback= 600C1D00 600C01B0
> 60022F086001B82C 60017A5C 60019700 6001B304 602E376C
> Aug 2 06:22:41.470 EDT: %ALIGN-3-TRACE: -Traceback= 600C1D04 600C01B0
> 60022F086001B82C 60017A5C 60019700 6001B304 602E376C24
>
> Included a sanitized copy of the config below for perusal,
> not sure why we would
> lose dialup capability after switching to nfas based
> signaling... even with
> only 1 t1 active. Also unsure as to why Serial1:23 would not
> be creteated once
> we setup t1 1 with nfas.
>
> thoughts?
>
> >On your "primary" controller, the one where the primary D channel is:
> >
> > pri-group timeslots 1-24 nfas_d primary nfas_interface 0
> nfas_group 1
> >
> >On your "secondary" controller, the one with the backup D channel:
> >
> > pri-group timeslots 1-24 nfas_d backup nfas_interface 1 nfas_group 1
> >
> >On further controllers:
> >
> > pri-group timeslots 1-24 nfas_d none nfas_interface 2 nfas_group 1
>
> !
> ! Last configuration change at 06:20:49 EDT Thu Aug 2 2001 by admin
> !
> version 12.1
> no service single-slot-reload-enable
> service timestamps debug datetime msec localtime show-timezone
> service timestamps log datetime msec localtime show-timezone
> service password-encryption
> !
> hostname as0
> !
> no logging rate-limit
> aaa new-model
> aaa authentication login default group radius local
> aaa authentication login consoleport local
> aaa authentication ppp default group radius local
> aaa authorization network default group radius
> aaa accounting network default wait-start group radius
> enable secret 5 $1$jqya$BjiYeMpVHfY9U4HdC8Fic/
> !
> username XXXXXX password 7 XXXXXXXXXXXXXXX
> username XXXXXX password 7 XXXXXXXXXXXXXXX
> spe 1/0 1/3
> firmware location system:/ucode/mica_port_firmware
> !
> !
> resource-pool disable
> !
> clock timezone EDT -5
> clock summer-time EDT recurring
> clock calendar-valid
> ip subnet-zero
> no ip source-route
> no ip finger
> ip domain-name XXXXXXXXXXXXXXXXXXXXX
> ip name-server XXXXXXXXXXXXX
> ip name-server XXXXXXXXXXXXX
> !
> virtual-profile virtual-template 1
> multilink virtual-template 1
> isdn switch-type primary-dms100
> partition flash 2 8 8
> !
> !
> !
> controller T1 0
> framing esf
> clock source line primary
> linecode b8zs
> pri-group timeslots 1-24 nfas_d primary nfas_int 0 nfas_group 1
> description Bell T1 > 23B:1D
> !
> controller T1 1
> framing esf
> clock source line secondary 1
> linecode b8zs
> pri-group timeslots 1-24 nfas_d backup nfas_int 1 nfas_group 1
> description Bell T1#2 > 23B:1D
> !
> controller T1 2
> shutdown
> clock source line secondary 2
> !
> controller T1 3
> shutdown
> clock source line secondary 3
> !
> controller T1 4
> shutdown
> clock source line secondary 4
> !
> controller T1 5
> shutdown
> clock source line secondary 5
> !
> controller T1 6
> shutdown
> clock source line secondary 6
> !
> controller T1 7
> shutdown
> clock source line secondary 7
> !
> !
> interface Ethernet0
> no ip address
> shutdown
> !
> interface Virtual-Template1
> ip unnumbered FastEthernet0
> ip tcp header-compression passive
> no keepalive
> peer default ip address pool default
> ppp authentication chap pap
> ppp multilink
> multilink max-links 2
> !
> interface Serial0
> no ip address
> shutdown
> no fair-queue
> clockrate 2015232
> !
> interface Serial1
> no ip address
> shutdown
> no fair-queue
> clockrate 2015232
> !
> interface Serial2
> no ip address
> shutdown
> no fair-queue
> clockrate 2015232
> !
> interface Serial3
> no ip address
> shutdown
> no fair-queue
> clockrate 2015232
> !
> interface Serial0:23
> ip unnumbered FastEthernet0
> encapsulation ppp
> ip mroute-cache
> no keepalive
> dialer-group 1
> isdn switch-type primary-dms100
> isdn tei-negotiation first-call
> isdn incoming-voice modem
> no peer default ip address
> no fair-queue
> ppp max-bad-auth 3
> ppp authentication chap pap
> ppp multilink
> !
> interface FastEthernet0
> ip address XXXXXXXXXXXX 255.255.255.0
> no ip mroute-cache
> duplex auto
> speed auto
> !
> interface Group-Async0
> ip unnumbered FastEthernet0
> encapsulation ppp
> async mode interactive
> peer default ip address pool default
> no fair-queue
> ppp max-bad-auth 3
> ppp authentication chap pap
> ppp multilink
> group-range 1 48
> !
> ip local pool default XXXXXXXXXX XXXXXXXXXXXXXX
> ip default-gateway XXXXXXXXXXXX
> ip classless
> ip route 0.0.0.0 0.0.0.0 XXXXXXXXXXXXX
> ip http server
> !
> dialer-list 1 protocol ip permit
> snmp-server XXXXXXXXXXXXXXXXXXX
> snmp-server location XXXXXXXXXXXXXX
> snmp-server contact XXXXXXXXXXXXXXXXXXXXXXXX
> radius-server host XXXXXXXXXXXXXX auth-port XXXX acct-port XXXX
> radius-server retransmit 3
> radius-server key 7 XXXXXXXXXXXXXXX
> !
> line con 0
> login authentication consoleport
> transport input none
> line 1 48
> autoselect during-login
> autoselect ppp
> modem Dialin
> line aux 0
> line vty 0 4
> login authentication consoleport
> !
> end
>



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