[nsp] ATM OAM question's...

[Blinov A. Sergey]

Hi,

Can anybody help me, and explaine, why OAM cell is counted as DATA cell on
interfaces... This is normal ?

IOS (tm) 3600 Software (C3640-JS-M), Version 12.3(9), RELEASE SOFTWARE (fc2)

ATM2/IMA0.38: VCD: 8, VPI: 15, VCI: 38
UBR, PeakRate: 4294967295 (4294967295 cps)
AAL5-LLC/SNAP, etype:0x0, Flags: 0xC20, VCmode: 0x0, Encapsize: 12
OAM frequency: 60 second(s)
InARP frequency: 15 minutes(s)
Transmit priority 4
InPkts: 0, OutPkts: 8, InBytes: 0, OutBytes: 448
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ !!!!
InPRoc: 0, OutPRoc: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
InPktDrops: 0, OutPktDrops: 0/0/0 (holdq/outputq/total)
CrcErrors: 0, SarTimeOuts: 0, OverSizedSDUs: 0, LengthViolation: 0,
CPIErrors: 0Out CLP=1 Pkts: 0
OAM cells received: 0
OAM cells sent: 8
Status: DOWN

c3640#sh interfaces atm2/ima0.38
ATM2/IMA0.38 is down, line protocol is down
  Hardware is ATM IMA
  MTU 4470 bytes, BW 1920 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ATM
  0 packets input, 0 bytes
  8 packets output, 448 bytes
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  0 OAM cells input, 8 OAM cells output
  AAL5 CRC errors : 0
  AAL5 SAR Timeouts : 0
  AAL5 Oversized SDUs : 0
  AAL5 length violation : 0
  AAL5 CPI Error : 0
  Last clearing of "show interface" counters never

Thank you..

-- 
Blinov A. Sergey, POST Ltd. system administrator
Phone: +7 8652 972729, +7 8793 467937  Email: blny at kmv.ru 
Information: BLNY-RIPN, BLNY-RIPE