[c-nsp] MLPPP bridged

[Kevin]

I've been having really odd issue with MLPPP on the 7513, for one I'm
using an 8 port FSIP board instead of a PA, 
And the main problems I've been having are based on the cpu load, I have
an RSP4 which could be a problem.
But basically If I have dCEF enabled, then the multilink breaks, can't
ping the other side, BGP session does'nt come up, etc. Between 2 BGP
sessions and 1 MLPPP on the 7513, it's really taxing the RSP4.

Kevin,

-----Original Message-----
From: Rodney Dunn [mailto:rodunn at cisco.com] 
Sent: Tuesday, August 31, 2004 9:53 AM
To: Kevin
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] MLPPP bridged

On Mon, Aug 30, 2004 at 05:54:29PM -0500, Kevin wrote:
> With all the issues I have with MLPPP on a 7513,

Could you elaborate on the issues?  I've posted a list of MLPPP bugs
that have been fixed in the last 6 months for the 75xx with dMLPPP and
if you are not running code that has those fixes you surely will have
some problems.

> I decided todo a setup which includes a 3620 with the multilink bundle

> and a fastethernet interface to the 7513, On the 3620 I disabled ip 
> routing and put the multilink interface and the fastethernet in the 
> same bridge-group, All the interfaces are up and looks like I have 
> incoming and outgoing packets, But I can't ping from the 7513 to the
otherside.
> Does anyone have any suggestions to why this would happen?

a) You don't have an ip address on the 36xx so any pings to/from it will
no work
b) On the 75xx side it's important if you have a BVI to interface
   the bridge to the L3 side of the router.
   I would need to see the 75xx configuration.

I don't know what you are trying to do here but I highly do NOT
recommend you do this because the bridging code for something like this
is performance wise would be horrible.

Rodney

 

> 
> Kevin,
> 
> Here's the running config on the 3620:
> 
> version 12.2
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname mlppp-router
> !
> !
> ip subnet-zero
> no ip routing
> !
> !
> !
> call rsvp-sync
> !
> !
> !
> !
> !
> !
> !
> !
> interface Multilink1
>  no ip address
>  ppp multilink
>  multilink-group 1
>  bridge-group 1
> !
> interface FastEthernet0/0
>  no ip address
>  no ip route-cache
>  no ip mroute-cache
>  speed 100
>  full-duplex
>  bridge-group 1
> !
> interface Serial1/0
>  no ip address
>  encapsulation ppp
>  no ip route-cache
>  no ip mroute-cache
>  serial restart-delay 0
>  ppp multilink
>  multilink-group 1
> !
> interface Serial1/1
>  no ip address
>  encapsulation ppp
>  no ip route-cache
>  no ip mroute-cache
>  serial restart-delay 0
>  ppp multilink
>  multilink-group 1
> !
> interface Serial1/2
>  no ip address
>  encapsulation ppp
>  no ip route-cache
>  no ip mroute-cache
>  serial restart-delay 0
>  ppp multilink
>  multilink-group 1
> !
> interface Serial1/3
>  no ip address
>  no ip route-cache
>  no ip mroute-cache
>  shutdown
>  serial restart-delay 0
> !
> ip classless
> no ip http server
> !
> bridge 1 protocol ieee
> !
> dial-peer cor custom
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
>  login
> !
> end
> 
> 
> 
> 
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