Cisco 3745 - ATM interface - %ATM_AIM-5-CELL_ALARM_UP

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May 25th, 2010
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Hi all,


I am continiously getting error mentioned below: what may be the issue:


%ATM_AIM-5-CELL_ALARM_UP: Interface ATM0/0 lost cell delineation.
%ATM_AIM-5-CELL_ALARM_DOWN: Interface ATM0/0 regained cell delineation.

Interface ATM0/0 is up
  Hardware is ATM AIM E1  connected to AIM slot 1
  hwidb=0x63F3E0BC, sardb=0x63A415B0
  slot 0, unit 0, subunit 0
  MXT5100 versions: Framework 0x3380, Utils 0x3380,
                    AAL5 0x3380, AAL2 0x3380, AAL1 0x3380,
                    IMA 0x3380, CS 0x3380, Frame 0x3380.
  Current (mxt5100_t)sardb:
      Ind_Q(0xF7FF8C0), Ind_Q_idx(352), Ind_Q_size(30000)
      Cmd_Q(0xF7FAA60), Cmd_Q_idx(51), Cmd_Q_size(20000)
      Inpool(0xF7C5080), Inpool_size(4096)
      Outpool(0xF7C60C0), Outpool_size(4096)
      Localpool(0xF7D0000), Localpool_size(256)
      StorBlk(0xF651000), host_blk(0xF64FF00), em_blk(0xF64FFC0)
      tx_buf_desc(0xF7F39E0), tx_free_desc_idx (1023)
  MXT5100 sub_channel_mode is disabled
  MXT5100 number of buffers in Inpool: 1024, Outpool 0
  FPGA revision 0x2070007
  MXT5100 Port Info:
      Port Number (0), Port ID (0xE05)
      Interface Number (4), Interface ID (0x10E1)
      Port Type CELL, Port Open Status SUCCESS
      VCs configured (2)
      Port counters: tx_cells 1710604335, rx_cells 1361852530,
       rx_hec_errors 319, rx_cell_validation_errors 318
      Cell delineation PRESENT
      Times cell delineation has been lost 45
  MXT5100 Channel Info:
    Channel Info (0):
      Chan_ID (0x1225), Open Status SUCCESS, VC(1)VPI/VCI(2/108),
      Tx Ring packets(used/max 0/40), Tx SBD(used/max 0/40)
      Tx PDU(90092), Tx PDU discard(0)
      Tx SDU size err(0), Tx cell CLP0(90092), Tx cell CLP1(0)
      Rx PDU(0), Rx PDU discard(0), Rx SDU size err(0)
      Rx CRC err(0), Rx cell CLP0(0), Rx cell CLP1(0)
    Channel Info (1):
      Chan_ID (0xFA5), Open Status SUCCESS, VC(2)VPI/VCI(3/108),
      Tx Ring packets(used/max 0/40), Tx SBD(used/max 0/40)
      Tx PDU(27094662), Tx PDU discard(0)
      Tx SDU size err(0), Tx cell CLP0(54548926), Tx cell CLP1(0)
      Rx PDU(18792145), Rx PDU discard(0), Rx SDU size err(0)
      Rx CRC err(488), Rx cell CLP0(41323241), Rx cell CLP1(0)



when resetted the interface it works fine for some time and occur again... need urgent help...


Regards

Amar

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Giuseppe Larosa Wed, 05/26/2010 - 04:58
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Hello Amar,


from what you say, you may be facing a clocking problem


the fact that after resetting for some time it looks like working  leads to this possibility.


may you post configuration of ATM interface controller ATM0 (if it exists) in order to understand if clock is received from line, it is internal or it is using the clock of another E1 interface


Hope to help

Giuseppe

amardram123 Tue, 06/15/2010 - 10:59
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=======show version==========


cisco 3745 (R7000) processor (revision 2.0) with 247808K/14336K bytes of memory.
Processor board ID FHK0916F23S
R7000 CPU at 350MHz, Implementation 39, Rev 3.3, 256KB L2, 2048KB L3 Cache
Channelized E1, Version 1.0.
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
2 FastEthernet/IEEE 802.3 interface(s)
4 ATM network interface(s)
4 Channelized E1/PRI port(s)
1 Virtual Private Network (VPN) Module(s)
1 ATM/Voice AIM(s)


==============================


network-clock-participate wic 0
no network-clock-participate wic 1
network-clock-participate aim 1
network-clock-select 1 E1 0/0
network-clock-select 2 E1 0/1


controller E1 0/0
mode atm aim 1
clock source line primary


interface ATM0/0

no ip address

no ip redirects

no ip unreachables

no ip proxy-arp

load-interval 30

scrambling-payload

no atm auto-configuration

no atm ilmi-keepalive

no atm address-registration

!

interface ATM0/0.200 point-to-point

description ***** PVC to LON-LTSB-RTR (via BGPP01) *****

bandwidth 1700

pvc x/x

  vbr-rt 1700 1600 200

  oam-pvc manage

  protocol ppp Virtual-Template10


==============



Regards

Amar

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