[c-nsp] ATM PVC auto-provisioning

Paul Stewart pstewart at nexicomgroup.net
Mon Oct 24 14:09:18 EDT 2005


We don't use autocreation here (just never tried it) but use ranges like
this:

interface ATM1/0
 description AFC Traffic
 no ip address
 no atm ilmi-keepalive
 range pvc 0/32 0/537
  protocol pppoe
 !
 range pvc 1/32 1/301
  protocol pppoe
 !
 range pvc 2/32 2/257
  protocol pppoe
 !
 range pvc 3/32 3/139
  protocol pppoe
 !
 range pvc 4/32 4/425
  protocol pppoe 


Paul Stewart
IP Routing/Switching
Nexicom Inc.
http://www.nexicom.net/ 


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Brian Lehigh
Sent: Monday, October 24, 2005 1:49 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] ATM PVC auto-provisioning

Hello all,
Tomorrow morning I will be deploying a new router to handle our
broadband aggregation (7206 NPE-G1).  Currently, we create a
subinterface for every PVC and our configuration is obscenely large.
Additionally, we are always fighting with the Telco to get PVC's
provisioned correctly (i.e. Telco waits until the last minute to create
the PVC, etc).  I would like to implement PVC auto-creation but would
like to hear from the list if there are any caveats, performance issues,
etc. that I should take into consideration before going this route.
 
Here's part of the config. that I plan to use:
 
-----------------------------------------------------
virtual-profile if-needed
virtual-profile virtual-template 1
vpdn enable
!
vpdn-group broadband-00
 accept-dialin
  protocol pppoe
  virtual-template 1
 !
!
!
!
vc-class atm pppoe
  protocol pppoe
  encapsulation aal5snap
  create on-demand
!
!
interface ATM3/0
 description ATM DS3 for DSL
 no ip address
 shutdown
 class-int pppoe
 atm scrambling cell-payload
 no atm ilmi-keepalive
!
!
interface Virtual-Template1
 mtu 1492
 ip unnumbered FastEthernet0/0
 no logging event link-status
 peer default ip address pool atm00pool
 ppp authentication pap
!
-----------------------------------------------------
 
Does this look like it should work?  Do any of you use this method for
PVC creation?  Also, what would you recommend for "idle-timeout" values?
I've seen "idle-timeout 300 10" used.
Thanks,
 
-Brian
 
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