[c-nsp] per-packet load sharing.

[Raymond Macharia]

hi virendra,

Per packet load sharing is CPU intensive and if you are running something
like voice then it is not recommended that you run per packet.
Even with per packet you will never get exact load sharing for both links.

Best Regards

Raymond

On Dec 10, 2007 4:39 AM, virendra rode // <virendra.rode at gmail.com> wrote:

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> Hi,
>
> I have a GRE tunnel configured on a L3 device running ospf w/ cef
> enabled which ties into two edge routers in a dual-isp setup.
>
>
> L3 switch#
>
> int tun0
> ip add 10.0.0.1 255.255.255.252
> tunnel source 192.168.0.1
> tunnel destination 192.168.2.1
>
> router ospf 100
> network x.x.x.x y.y.y.y area 0
>
> ip route x.x.x.x y.y.y.y 10.0.0.2
>
>
> In order to distribute traffic (load-sharing) across two links I'm
> looking at enabling equal cost traffic (per-packet load sharing) going
> out both serial links as their data processing is overloading one link.
> The equal cost routes with CEF default load sharing is not distributing
> the load over the 2 links as expected.  MLPPP is not an option for
> budget reasons hence I'm looking at doing per-packet.
>
>
> router-1#
> ip cef (enabled globally)
> ip cef load-sharing algorithm original
>
> fa0/0 connected to L3 on vlan5
>
> interface Serial0/0/0:0
> bandwidth 1544
> no ip address
> encapsulation frame-relay
> frame-relay lmi-type cisco
> ip load-sharing per-packet
>
>
> interface Serial0/0/0:0.100 point-to-point
> bandwidth 1544
> ip address x.x.x.x y.y.y.y
> frame-relay interface-dlci 100
>
>
> router-2#
> ip cef (enabled globally)
> ip cef load-sharing algorithm original
>
> fa0/0 connected to L3 on vlan5
>
> interface Serial0/0/0:0
> bandwidth 1544
> no ip address
> encapsulation frame-relay
> frame-relay lmi-type cisco
> ip load-sharing per-packet
>
>
> interface Serial0/0/0:0.200 point-to-point
> bandwidth 1544
> ip address x.x.x.x y.y.y.y
> frame-relay interface-dlci 200
>
>
> Any recommendation and /or feedback will be appreciated.
>
>
>
> regards,
> /virendra
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-- 
Raymond Macharia