Hi everybody

This is a bit off topic, but as I am trying to implement it on LEAF it
might be of interest to the group and I am sure there must be

I am trying to do redundant routing / load balancing for a given subnet
through possibly different ISP possibly using different access methods (
PPPoE / IP )

Tha basic set up is as follows:

- Location A and B are connected to an intermediate network
(_the_internet_) through multiple connections thus have multiple endpoints.

- I am building GRE tunnels between related endpoints. Those GRE tunnels
have dedicated endpoints on the routers at A and B

- using the eql device I am enslaving those gre tunnels on both sides to
the eql device thus bonding these tunnels.

Now here is the problem:

If one of the connections and therefore the GRE tunnel loses
connectivity I need to set the respective GRE endpoint down. You would
expect that the driver does this, but it appears that it tries to
recover for too long. So I have to detect line drops and GRE failures
quickly on both locations in order to be able to remove the slave status
from these tunnels.

I have not been able to find a generic and fast mechanism to do that.

Suggestions welcome.

Thanks

Erich


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