outbound traffic missing

outbound traffic missing

We monitor about 10 interfaces with netflow.

Recently 3 of those managed interfaces have stopped showing outbound traffic. It just sits at 0% and 0.0 Kbps

nothing has changed on the routers or anything.

We did move netflow to a new server, recently but i can't understand why the inbound traffic is working fine but outbound doesn't.

any ideas?

p.s traffic is defiantly flowing in both directions









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