Re: debug output [7:42909]

[Ted Siniscalchi]

Thanks for resoponding Kris; you also Johnny.  I was working from a lab in
the book for Cisco's Networking Academy, Semester 5, which covers the BSCN
exam.  I reconfigured my lab and finally got it working. As it turns out,
RIP does automatically load balance equal cost paths.  The lab scenario has
three routers in a full-mesh, like a pyramid.  The router at the top of the
pyramid also has a workstation attached, that is pinging the network at the
base of the pyramid.  This is the only network that is not
directly-connected to the router at the top.  But when I had configured RIP
as my routing protocol, I had included this network as one of my "network"
statements.  This somehow caused the router at the top of the pyramid to see
only one route to the network, instead of the two routes that it should have
had.  When I removed the offending network statement, both routes appeared
in the routing table, and my "debug ip packet" command showed packets going
out alternating interfaces (with process switching"). Doh!

Anyway, thanks for taking the time to respond.  My lab works; the Red Sox
have the best record in the majors, and life is good.


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debug output [7:42909]

[Ted Siniscalchi]

I've been trying to set up RIP load balancing, and although I have two
equal-cost paths, "show ip route" only shows one of the paths.  When I
"debug ip packets", I notice the the "len" parameter's value is different
for the two serial links to the target network.  The output looks like this:

IP:  s=192.168.3.2 (Ethernet0), d=10.0.0.1  (Serial1), g=192.168.2.1, len 72
...

IP:  s=192.168.3.2 (Ethernet0), d=10.0.0.1  (Serial1), g=192.168.1.1, len 52
...

As you can see, the "len" vlaue is different for the two paths.  I should
note that the target Ethernet network runs between a 2621 and a 2514.

My questions are what is the "len" parameter?  Is the difference in the
values responsible for my inablility to load-balance?  And can the len be
modified?

Thanks in advance for any light you can shed on this.  I've searched the
archives and the Cisco site, but I've been unable to find anything directly
on point.


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