ISDN

kumar_s29 · ‎08-19-2010

Hi,iam getting error as TEI_ASSIGNED in my router for ISDN BRI.Layer one is active.how to troubleshoot?

Chetan Kumar Ress · ‎08-19-2010

Hi Kumar

Can you post output of : sh isdn status

As you told your layer 1 is up & you are getting TEI_ASSIGNED , Which indicates that Layer 2 frame not exchange with SP switch.

May be you can check that you are getting some error on the controller or use debug to verify the issue.

Please refer the below link : http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00801509d7.shtml

Regards

Chetan Kumar

http://chetanress.blogspot.com

kumar_s29 · ‎08-22-2010

Hi Chetan, below is the output.....

show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 86, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 123
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
0 Active Layer 3 Call(s)
CCB:callid=81CD, sapi=0, ces=1, B-chan=1, calltype=DATA, hdlctype=HDLC-TRUNK
    Active dsl 0 CCBs = 1
    The Free Channel Mask: 0x80000002
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 1
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
0 Active Layer 3 Call(s)
CCB:callid=81CE, sapi=0, ces=1, B-chan=2, calltype=DATA, hdlctype=HDLC-TRUNK
    Active dsl 0 CCBs = 1
    The Free Channel Mask: 0x80000001
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 1
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
ACTIVE_ErrorInd
    Layer 2 Status:
TEI = 88, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 129
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI1/0 interface
dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
DEACTIVATED
    Layer 2 Status:
Layer 2 NOT Activated
    Layer 3 Status:
0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask: 0x80000003
    Number of L2 Discards = 0, L2 Session ID = 132
    Total Allocated ISDN CCBs = 0
fortcochi#show isdn history
--------------------------------------------------------------------------------
                                ISDN CALL HISTORY
--------------------------------------------------------------------------------
Call History contains all active calls, and a maximum of 100 inactive calls.
Inactive call data will be retained for a maximum of 15 minutes.
--------------------------------------------------------------------------------
Call    Calling      Called       Remote Seconds Seconds Seconds Charges
Type    Number       Number       Name    Used    Left    Idle    Units/Currency
--------------------------------------------------------------------------------
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
Out   ---N/A--- +4712335054                Failed
Out   ---N/A--- +4712335064                Failed
--------------------------------------------------------------------------------

fortcochi#show isdn active
--------------------------------------------------------------------------------
                                ISDN ACTIVE CALLS
--------------------------------------------------------------------------------
Call    Calling      Called       Remote Seconds Seconds Seconds Charges
Type    Number       Number       Name    Used    Left    Idle    Units/Currency
--------------------------------------------------------------------------------
--------------------------------------------------------