[nsp] PPPoE over an IEEE 802.1Q VLAN

[jlewis at lewis.org]

Yeah...I was surprised (the hard way as usual) when I tried moving a DSLAM 
from a dedicated PA-4E port to an ISL VLAN on a 2924xlen.  I figured cisco 
perfers their proprietary ISL, and though the router would let me 
configure pppoe enable on an ISL sub-int, pppoe wouldn't actually work 
until I switched from ISL to dot1q.

On Tue, 15 Jul 2003, Siva Valliappan wrote:

> also, with regards to PPPoEoVLAN, only 802.1Q support is there.  ISL is
> not supported.
> 
> cheers
> .siva
> 
> 
> On Tue, 15 Jul 2003, Dennis Peng wrote:
> 
> > Broadband aggregation and VPDN features aren't supported in 12.2S and
> > have been removed mainly because it isn't tested and the code base is
> > so old (relatively speaking since that part of the code is in such
> > high flux) you'd be re-treading old bugs. Can you go with 12.3? 12.2
> > mainline would also work but probably would be less desirable for
> > similar reasoning as 12.2S but less so. For the time being, it is also
> > much easier to pick up bug fixes on 12.2 or 12.3 as compared to 12.2S.
> >
> > Dennis
> >
> > jlewis at lewis.org [jlewis at lewis.org] wrote:
> > > http://www.cisco.com/en/US/products/sw/iosswrel/ps1834/products_feature_guide09186a0080080386.html
> > >
> > > I found out the hard way that this feature, present in late 12.1T, is not
> > > in 12.2S.  Also, when going back to 12.1(5)T12, putting pppoe enable back
> > > into the appropriate subinterface crashes the router with
> > >
> > > System returned to ROM by bus error at PC 0x0, address 0x0
> > >
> > > I did this twice in a row before shutting the fastE interface before
> > > entering pppoe enable.  That made the router able to accept the command
> > > without crashing.
> > >
> > > Anyway...PPPoE over an IEEE 802.1Q VLAN doesn't seem to be a searchable
> > > feature in go/fn.  So, are there plans to support this (or even just PPPoE
> > > on regular fastE interfaces...it actually isn't supported at all in 12.2S)
> > > in 12.2S at some point, or are we stuck with 12.1T on these routers?
> > >
> > > ----------------------------------------------------------------------
> > >  Jon Lewis *jlewis at lewis.org*|  I route
> > >  System Administrator        |  therefore you are
> > >  Atlantic Net                |
> > > _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
> > >
> > > _______________________________________________
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> >
> > --
> > -------------------------------------------------------------------------
> >       ||        ||                                 Dennis Peng
> >       ||        ||        Cisco Systems, Inc.      Escalation Engineer
> >      ||||      ||||       170 West Tasman Drive    Phone: (408) 526-6143
> >  ..:||||||:..:||||||:..   San Jose, CA 95134       Fax:   (408) 232-2343
> >    Cisco Systems Inc.                              dpeng at cisco.com
> > -------------------------------------------------------------------------
> > _______________________________________________
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> >
> 

----------------------------------------------------------------------
 Jon Lewis *jlewis at lewis.org*|  I route
 System Administrator        |  therefore you are
 Atlantic Net                |  
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________