[nsp] ATM OAM question's...

[Brian Turnbow]

Cisco routers think in "packets" not cells so it counts oam as packets.
They do not count header or cell tax however in the octets field,  so when
you
are billed by your carrier in cells, and try to reconcile your info with
theirs
it gets really fun.


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Blinov A. Sergey
Sent: sabato 3 luglio 2004 7.08
To: cisco-nsp at puck.nether.net
Subject: [nsp] ATM OAM question's...


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
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