Comment 1 for bug 1473647

Agent crashing when message is trapped for setup of egress flow with vgw interface as out-interface.

Agent ensures that egress flows are not trapped by configuration (uses policy disabled NH in MPLS Label and also the interface has policy disabled).

However, there are corner cases where packets can be trapped for egress flow setup,
1. Source-IP is in ECMP
2. Agent has setup forward flow, but before reverse flow is setup the reverse packet hits vrouter

Must fix agent to handle egress flows going out on vgw interface.