Mailing List Archive: Advantages of enabling vtemplate pre-clone

Hi

I have a cisco 7206VXR with NPE-G1, 512 Memory and running IOS image: c7200-js-mz.123-19. Currently terminating around 2000 PPPoE sessions.

What will be the advantage for enabling vtemplate pre-clone ?

The current configuration is

vpdn enable
!
vpdn-group pppoe
accept-dialin
protocol pppoe
virtual-template 1
pppoe limit per-vc 5

!

!
!
vc-class atm auto-pppoe
protocol pppoe
dbs enable
encapsulation aal5snap
create on-demand
idle-timeout 600

!
!
interface Virtual-Template1
ip unnumbered GigabitEthernet0/1
peer default ip address pool pppcust
ppp authentication pap

sh vtemplate
Virtual access subinterface creation is globally enabled

Active Active Subint Pre-clone Pre-clone
Interface Subinterface Capable Available Limit
--------- ------------ ------- --------- ---------
Vt1 0 1583 Yes -- --

Usage Summary
Interface Subinterface
--------- ------------
Current in use 2 1583
Current free 0 293
Total 2 1876

Cumulative created 3 1737188
Cumulative freed 0 1735605

Base virtual access interfaces: 2
Total create or clone requests: 1737185
Cancelled create or clone requests: 0
Current request queue size: 0
Current free pending: 0
Current recycle pending: 0

Maximum request duration: 208 msec
Average request duration: 2 msec
Last request duration: 8 msec

Maximum processing duration: 44 msec
Average processing duration: 2 msec
Last processing duration: 8 mse

Thanks

cisco-bba-bounces@puck.nether.net <> wrote on Wednesday, October 04,
2006 7:20 AM:

> Hi
>
> I have a cisco 7206VXR with NPE-G1, 512 Memory and running
> IOS image: c7200-js-mz.123-19. Currently terminating around 2000
> PPPoE sessions.
>
> What will be the advantage for enabling vtemplate pre-clone ?
[..]
> sh vtemplate
> Virtual access subinterface creation is globally enabled
>
> Active Active Subint Pre-clone Pre-clone
> Interface Subinterface Capable Available Limit
> --------- ------------ ------- --------- ---------
> Vt1 0 1583 Yes -- --
>

You are already using subinterfaces, which is the most effective method
to terminate PPP users. Changing this by enabling pre-cloning will have
adverse effects on performance and memory, so please don't change it.
Pre-cloning no longer has much benefit (at least in 12.3 an later), so
there should be no reason to enable it in almost all scenarios.

oli

_______________________________________________
cisco-bba mailing list
cisco-bba@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-bba