Okay, now I'm confused by something in the Sybex CCIE study guide in the
token ring chapter. It says that if the first two bits of the routing
control field are 10 the frame is an all-routes explorer. If the first
two bits are 11 then it's a single-route explorer.
In all of their examples, when they convert the first nibble to hex
they use A for allroutes explorer and C to indicate single route
explorer. I understand "C" because 1100 = C, but 1000 = 8, not A.
What's the deal? Am I losing my mind or is the book wrong? I've
noticed the book has been wrong in several other places but this is a
new topic for me.
>From what I can tell, a RIF that starts with 8 is an all-routes
explorer. If it starts with C it is a single-route explorer. If it
starts with zero it is a nonexplorer frame. Is this correct?
Thanks,
John
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