Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

PRI Failure

I have a PRI which continues to fail. The telco tested to the demark and with no errors. Our layer 1 tech checked the extention from the demark into our suite and says everything is fine. Here is the debug from a call attempt.  Has anyone seen this before?

WAS-2821-02#sh isdn status
Global ISDN Switchtype = primary-ni

%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not apply

ISDN Serial0/0/0:23 interface
        dsl 0, interface ISDN Switchtype = primary-ni
        L2 Protocol = Q.921 0x0000  L3 Protocol(s) = CCM MANAGER 0x0003
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, 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:  0x807FFFFF
    Number of L2 Discards = 0, L2 Session ID = 78
    Total Allocated ISDN CCBs = 0
WAS-2821-02#debug isdn q931
debug isdn q931 is              ON.
WAS-2821-02#ter 
*Mar 16 13:08:57 EDT: ISDN Se0/0/0:23 Q921: User TX -> RRp sapi=0 tei=0 nr=0
*Mar 16 13:08:57 EDT: ISDN Se0/0/0:23 Q921: User RX <- RRf sapi=0 tei=0 nr=0
WAS-2821-02#term mon
WAS-2821-02#
*Mar 16 13:09:21 EDT: %MARS_NETCLK-3-HOLDOVER: Entering Holdover for Controller T1 0/0/0
*Mar 16 13:09:22 EDT: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed state to down (LOS detected)
*Mar 16 13:09:22 EDT: ISDN Se0/0/0:23 Q931: L3_ShutDown: Shutting down ISDN Layer 3
*Mar 16 13:09:22 EDT: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/0/0:23, TEI 0 changed to down
WAS-2821-02#
*Mar 16 13:09:22 EDT: ISDN Se0/0/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2
WAS-2821-02#
*Mar 16 13:09:24 EDT: %LINK-3-UPDOWN: Interface Serial0/0/0:23, changed state to down
WAS-2821-02#
*Mar 16 13:09:32 EDT: %MARS_NETCLK-3-HOLDOVER_TRANS: Holdover timer exceeded for Controller T1 0/0/0
*Mar 16 13:09:32 EDT: %MARS_NETCLK-3-CLK_TRANS: Network clock source transitioned from priority 1 to priority 10
WAS-2821-02#sh isdn status
Global ISDN Switchtype = primary-ni

%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not apply

ISDN Serial0/0/0:23 interface
        dsl 0, interface ISDN Switchtype = primary-ni
        L2 Protocol = Q.921 0x0000  L3 Protocol(s) = CCM MANAGER 0x0003
    Layer 1 Status:
        DEACTIVATED
    Layer 2 Status:
        TEI = 0, 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:  0x00000000
    Number of L2 Discards = 0, L2 Session ID = 79
    Total Allocated ISDN CCBs = 0
WAS-2821-02#

1 REPLY
Hall of Fame Super Gold

Re: PRI Failure

*Mar 16 13:09:22 EDT: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed  state to down (LOS detected)

What exact cabling are you using between demarc and router ?

2146
Views
0
Helpful
1
Replies
CreatePlease to create content