Depends what you expect your load balancing to do!
With one 1 Mbps link and one 2 Mbps link, you will NOT get a total
throughput of 3 Mbps. You can either let your metrics reflect the real
bandwidths of the links, in which case the 2 Mbps link will be preferred
and you will get 2 Mbps through that single link.
Or, you can set the metrics to be the same, in which case traffic will be
balanced across both links - but you will only get about 1 Mbps across the
2 Mbps link, for a total of 2 Mbps across both links. Why? Because there
is no recognition of the fact that one link has more available bandwidth
than the other. Traffic will be sent equally across both links (give or
take a bit - depending on whether you are doing per packet balancing, per
destination, or whatever), so when the 1 Mbps link 'fills up', you will
start dropping packets across that link. The 'extra' bandwidth on the 2
Mbps link will not be used.
JMcL
----- Forwarded by Jenny Mcleod/NSO/CSDA on 11/12/2001 10:56 am -----
"wind"
cc:
Sent by: Subject: Re: ospf load balance
[7:28654]
nobody@groups
tudy.com
10/12/2001
09:18
pm
Please
respond
to
"wind"
just make sure the 2 links has same metric will do !
""Gayathri"" Hi Group,
>
> Below is the configuration of my router. Serial 1/0 is a 2m link and
serial
> 1/1 is a 1m link . By configuring as given below, will I be able to
acheive
> load balance between these 2 links , I am running OSPF.
>
>
> interface Serial1/0
> description 1st 2M link
> bandwidth 2000
> ip address 172.31.0.60 255.255.255.252
> ip ospf cost 100
>
> !
> interface Serial1/1
> description 2nd 1M link
> bandwidth 1000
> ip address 172.31.0.61 255.255.255.252
> ip ospf cost 100
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=28770&t=28654
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