You process address 0 exactly as any other level 1 routing message entry.
Then in the forwarding process of an L1 router, if the destination is out of area, use
entry 0 to decide how to forward the packet.
Why do you get failures from Check? I don't see how you could get that.
paul
On Aug 25, 2012, at 4:36 PM, Rob Jarratt wrote:
I am working on a user mode DECnet router and I have a question about the Level 1 Routing
message.
Specifically, sometimes I receive a level 1 routing message with routing information for
destination address 0. The spec says this represents the nearest level 2 router .
What I am not clear about is how this is supposed to be treated in the Decision Process,
specifically Section 4.7.3 item F in the specification. The reason I ask is that if I
blindly accept address 0 I think it corrupts the hop and cost tables, because the Check
process then gets failures.
Thanks
Rob