[cisco-nas] as5300 - modem fails to handshake

Tue Jul 12 13:39:45 EDT 2005

A very typical cause for a symptom like this, when doing
NFAS, is "crossed spans".  E.g. your T1 1 goes to
T1 1 on the switch, but your T1 2 goes to the switch's
T1 3 and your T1 3 goes to their T1 2.

If you unplug your T1 2 while you have your switch guy
on the phone, which T1 does *he* see go down?

Aaron

---

>AS5300
>IOS 12.3(15)
>modem version 2.9.5.0
>
>Only used for incoming dial up
>
>We have 3 ISDN/PRI incoming configured in nfas group.  When the first T 
>reaches 23 lines in use and the calls roll over to the next T, the call 
>is assigned to a modem, but the modem does NOT initiate handshake sequence.
>
>I know a debug on a bad call would help, unfortunately the create that 
>sequence of events is problematic.  If the opportunity arises I will 
>post that info as well.
>
>If anyone has any ideas, please let me know.
>
>#show ver
>Cisco Internetwork Operating System Software
>IOS (tm) 5300 Software (C5300-JS-M), Version 12.3(15), RELEASE SOFTWARE 
>(fc3)
>Technical Support: http://www.cisco.com/techsupport
>Copyright (c) 1986-2005 by cisco Systems, Inc.
>Compiled Tue 24-May-05 16:02 by ssearch
>Image text-base: 0x60008AEC, data-base: 0x618DA000
>
>ROM: System Bootstrap, Version 11.2(19970724:081727) 
>[INT-janeiro.weekly.0.5.0 101], INTERIM SOFTWARE
>BOOTLDR: 5300 Software (C5300-BOOT-M), Version 12.3(15), RELEASE 
>SOFTWARE (fc3)
>
>c5300-2 uptime is 4 days, 18 hours, 26 minutes
>System returned to ROM by reload at 13:08:23 UTC Thu Jul 7 2005
>System image file is "flash:c5300-js-mz.123-15.bin"
>
>cisco AS5300 (R4K) processor (revision A.22) with 131072K/16384K bytes 
>of memory.
>Processor board ID 06465466
>R4700 CPU at 150MHz, Implementation 33, Rev 1.0, 512KB L2 Cache
>Bridging software.
>X.25 software, Version 3.0.0.
>SuperLAT software (copyright 1990 by Meridian Technology Corp).
>TN3270 Emulation software.
>Primary Rate ISDN software, Version 1.1.
>Backplane revision 2
>Manufacture Cookie Info:
> EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x30,
> Board Hardware Version 1.0, Item Number 73-2414-03,
> Board Revision A0, Serial Number 06465466,
> PLD/ISP Version <unset>,  Manufacture Date 23-Oct-1997.
>1 Ethernet/IEEE 802.3 interface(s)
>1 FastEthernet/IEEE 802.3 interface(s)
>76 Serial network interface(s)
>192 terminal line(s)
>8 Channelized T1/PRI port(s)
>128K bytes of non-volatile configuration memory.
>16384K bytes of processor board System flash (Read/Write)
>8192K bytes of processor board Boot flash (Read/Write)
>
>Configuration register is 0x2102
>
>#show run
>Building configuration...
>
>Current configuration : 3490 bytes
>!
>version 12.3
>no service pad
>service timestamps debug datetime msec
>service timestamps log datetime msec
>no service password-encryption
>!
>hostname c5300-2
>!
>boot-start-marker
>boot-end-marker
>!
>enable secret 5 ***
>!
>spe 1/0 1/7
> firmware location system:/ucode/mica_port_firmware
>spe 2/0 2/7
> firmware location system:/ucode/mica_port_firmware
>!
>!
>resource-pool disable
>!
>aaa new-model
>aaa session-mib disconnect
>!
>!
>aaa authentication login default group radius local
>aaa authentication login console none
>aaa authentication ppp default group radius local
>aaa authorization network default group radius local
>aaa accounting exec default start-stop group radius
>aaa accounting connection default start-stop group radius
>aaa accounting system default start-stop group radius
>aaa session-id common
>ip subnet-zero
>ip domain name ***.com
>ip name-server *.*.*.*
>ip name-server *.*.*.*
>!
>async-bootp dns-server *.*.*.* *.*.*.*
>!
>isdn switch-type primary-ni
>!
>!
>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
>!
>controller T1 1
> framing esf
> clock source line secondary 1
> linecode b8zs
> pri-group timeslots 1-24 nfas_d none nfas_int 2 nfas_group 1
>!
>controller T1 2
> framing esf
> clock source line secondary 2
> linecode b8zs
> pri-group timeslots 1-24 nfas_d backup nfas_int 1 nfas_group 1
>!
>controller T1 3
> framing sf
> clock source line secondary 3
> linecode ami
>!
>controller T1 4
> framing sf
> clock source line secondary 4
> linecode ami
>!
>controller T1 5
> framing sf
> clock source line secondary 5
> linecode ami
>!
>controller T1 6
> framing sf
> clock source line secondary 6
> linecode ami
>!
>controller T1 7
> framing sf
> clock source line secondary 7
> linecode ami
>!
>!
>interface Ethernet0
> ip address *.*.*.* *.*.*.*
>!
>interface Serial0
> no ip address
> no ip route-cache
> shutdown
> clock rate 2015232
> no fair-queue
>!
>interface Serial1
> no ip address
> no ip route-cache
> shutdown
> clock rate 2015232
> no fair-queue
>!
>interface Serial2
> no ip address
> no ip route-cache
> shutdown
> clock rate 2015232
> no fair-queue
>!
>interface Serial3
> no ip address
> no ip route-cache
> shutdown
> clock rate 2015232
> no fair-queue
>!
>interface Serial0:23
> ip unnumbered Ethernet0
> encapsulation ppp
> ip tcp header-compression passive
> isdn switch-type primary-ni
> isdn incoming-voice modem
> peer default ip address pool setup_pool setup_pool2
> ppp authentication pap
>!
>interface FastEthernet0
> no ip address
> no ip route-cache
> shutdown
> duplex full
> speed auto
>!
>interface Group-Async1
> ip unnumbered Ethernet0
> encapsulation ppp
> ip tcp header-compression
> async mode interactive
> peer default ip address pool setup_pool setup_pool2
> ppp authentication pap
> group-range 1 192
>!
>ip local pool setup_pool *.*.*.* *.*.*.*
>ip local pool setup_pool2 *.*.*.* *.*.*.*
>ip default-gateway *.*.*.*
>ip classless
>ip route 0.0.0.0 0.0.0.0 *.*.*.*
>ip http server
>!
>!
>!
>!
>!
>radius-server host *.*.*.* auth-port 1645 acct-port 1646
>radius-server directed-request
>radius-server key *****
>!
>!
>!
>!
>line con 0
> logging synchronous
> transport output all
>line 1 192
> modem InOut
> transport input all
> autoselect during-login
> autoselect ppp
>line aux 0
> transport output all
>line vty 0 4
> transport input all
> transport output all
>!
>end
>
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