[c-nsp] Really need help with atm vc-per-vp on NM-4T1 3640

Brian Turnbow b.turnbow at twt.it
Sat Feb 4 02:34:23 EST 2006


Hi Ruben
>From sh atm int 
  0VCIs per VPI: 1024,
>From sh int 
 1024 VCs per VP,

So 1024 vc per VP is configured. 
I think where you are getting confused is the max active vcs
The nms support max 256 per interface 1024 per card.

Brian



-----Original Message-----
From: Ruben Alvarez [mailto:raa at opusnet.com] 
Sent: venerdì 3 febbraio 2006 21.30
To: 'Oliver Boehmer (oboehmer)'; Brian Turnbow; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Really need help with atm vc-per-vp on NM-4T1 3640

Hi.

Sh atm int atm2/0:
Interface ATM2/0:
AAL enabled:  AAL5 , Maximum VCs: 255, Current VCCs: 0

Maximum Transmit Channels: 0VCIs per VPI: 1024,
Max. Datagram Size: 4528
PLIM Type: DS1, TX clocking: LINE
Cell-payload scrambling: OFF
0 input, 0 output, 0 IN fast, 0 OUT fast, 0 out drop
 Avail bw = 1536
Config. is ACTIVE

Sh int atm2/0:
ATM2/0 is up, line protocol is up
  Hardware is ATM T1
  MTU 4470 bytes, sub MTU 4470, BW 1536 Kbit, DLY 20000 usec,
     reliability 0/255, txload 1/255, rxload 1/255
  Encapsulation ATM, loopback not set
  Encapsulation(s): AAL5
  255 maximum active VCs, 1024 VCs per VP, 0 current VCCs
  VC idle disconnect time: 300 seconds
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Per VC Queueing
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 output buffer failures, 0 output buffers swapped out

-----Original Message-----
From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
Sent: Friday, February 03, 2006 9:05 AM
To: Ruben Alvarez; Brian Turnbow; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Really need help with atm vc-per-vp on NM-4T1 3640

Ruben,

what does "show atm int atm x/y" tell you? It should print the current
setting of the VC-PER-VC value.. 

	oli

Ruben Alvarez <> wrote on Friday, February 03, 2006 5:48 PM:

> Anyone else?  The bug was early in 12.2.  It's not related to the bug.
> Also, I can't remove the command either.  I try a "no atm vc-per-vp
> 1024." It behaves like to accepted the command, but it still shows up
> when I do a "sh int."
> 
> -----Original Message-----
> From: Brian Turnbow [mailto:b.turnbow at twt.it]
> Sent: Friday, February 03, 2006 2:51 AM
> To: Ruben Alvarez; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] Really need help with atm vc-per-vp on NM-4T1
> 3640 
> 
> Basically this command robs bits from the vp side to use in the vc
> side. 
> It limits teh vps you can then use ie 512 only allows you to have vp
> values 0-15 64-79
> There was a bug related to this command that was resolved somewhere
> in 12.2, but I don't remrember when.
> 
> Brian
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ruben Alvarez
> Sent: venerdì 3 febbraio 2006 2.06
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Really need help with atm vc-per-vp on NM-4T1 3640
> 
> All.
> 
> I'm having a really hard time getting this command to work.  As I
> understand, I should be able to adjust the number of maximum active
> VCs that module will allow.  Currently, it is allowing 255 maximum
> VCs.  I'm using IOS 12.2(32) GD.
> 
> I'll shut all 4 of the interfaces and apply the command.  It looks
> like the command is applied, but the value for maximum active VCs
> does not change. If I do a show interface, I see that the command is
> in the interface, vc-per-vp 512.
> 
> There's not much documentation of this command.  Anyone have any
> experience with this?
> 
> Thanks
> Ruben Alvarez
> Opus:interactive
> 
> 
> 
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