[c-nsp] Cisco 1720 and ip cef

[Rodney Dunn]

We need to see:

a) the configuration
b) show ip route
c) show ip cef
d) if you are using a default route out we
   need you to enable:
   ip cef accounting load
   and do 'sh ip cef 0.0.0.0 int' a couple of times.

Rodney


On Fri, Sep 24, 2004 at 10:49:53AM +1000, Nigel wrote:
> Hi All,
>  
> I am running into some trouble regarding the cisco 1720 and ip cef load
> balancing.
>  
> The router has 2 adsl wics in it. Each dsl connection is 1.5M/256.
>  
> The problem is that on the outbound path the traffic is only ever going out
> 1 specific wic. I have tried forcing cef to per packet in order to push
> traffic out both interfaces, but this still results in traffic only going
> out the 1 interface still. If I shutdown the interface that is passing
> outbound traffic the router drops of the network completely.
>  
> The inbound traffic comes down both wics. So far the ios has been upgraded
> to 12.3(10) and the wic has been swapped out. Neither has made a difference.
>  
> It leaves the actual wic slot on the 1720 or the possibility that the 1720
> just can't deal with load balancing.
>  
> Here are the outputs from the interfaces:
>  
> Router#sho int atm0 | inc rate
>   Queueing strategy: Per VC Queueing
>   5 minute input rate 112000 bits/sec, 38 packets/sec
>   5 minute output rate 0 bits/sec, 0 packets/sec
>  
>  
> Router#sho int atm1 | inc rate
>   Queueing strategy: Per VC Queueing
>   5 minute input rate 110000 bits/sec, 37 packets/sec
>   5 minute output rate 32000 bits/sec, 98 packets/sec
> 
>  
> Any ideas at all?
>  
> Thanks in advanced.
> 
> Regards,
> 
> Nigel
> 
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