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<DIV dir=ltr align=left><FONT face=Tahoma><FONT size=2><SPAN
class=893242214-18032010><FONT face="Trebuchet MS" color=#000080><STRONG><FONT
face=Tahoma color=#000000> If you want to change the metric calculations
for an EIGRP route, you have to modify parameters that EIGRP uses to calculate
the feasible distance. The bandwidth and delay commands on the interface(s) in
question can accomplish this. You can verify by looking at the "show
ip route" and you should see the next hop as the one for your primary path.
"show ip eigrp topo" command will also show how feasible distance
was calculated for each upstream
router. </FONT></STRONG></FONT></SPAN></FONT></FONT></DIV>
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class=893242214-18032010><FONT face="Trebuchet MS" color=#000080><STRONG><FONT
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color=#000000></FONT></STRONG></FONT></SPAN></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Tahoma><FONT size=2><SPAN
class=893242214-18032010><FONT face="Trebuchet MS" color=#000080><STRONG><FONT
face=Tahoma color=#000000>If you change the bandwidth or delay on the
interface that belongs to the upstream router, that will change
the "Reported Distance" sent to the downstream router, which will in
turn change the "weight" on that router to the upstream
router. </FONT></STRONG> </FONT></SPAN></FONT></FONT></DIV>
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<DIV dir=ltr align=left><FONT face=Tahoma size=2><B>From:</B>
cisco-voip-bounces@puck.nether.net [cisco-voip-bounces@puck.nether.net] On
Behalf Of Lelio Fulgenzi [lelio@uoguelph.ca]<BR><B>Sent:</B> Wednesday, March
17, 2010 9:30 PM<BR><B>To:</B> cisco-voip voyp list<BR><B>Subject:</B>
[cisco-voip] weighted EIGRP routes<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>
<DIV style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Verdana">Any pointers
on how to tell a downstream EIGRP neighbour to weigh one route better than
another? Do I put the weight on the downstream neighbour to say EIGRP routes
coming in on one interface should be weighted more heavily? Or on the upstream
router to push down the weights?<BR><BR>Basically, what I have is this:<BR><BR>
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+-----------------------+</SPAN><BR
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif"><SPAN
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif">
V
V </SPAN><BR
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif"><SPAN
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif">3945 ->
switch -> VG224 <- switch <- 3945, where switch = SM-ESx-16</SPAN><BR
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif"><BR
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif"><SPAN
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif">(view with
fixed font)</SPAN><BR
style="FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif">
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style="WIDTH: 100%; FONT-FAMILY: Courier New,courier,monaco,monospace,sans-serif; HEIGHT: 2px">
<BR></DIV>Two 3945s with service module ethernet switches which connects to the
two VG224 ports. All routing is done on the router and the switch provides layer
two connectivity. A port channel group between the two switches allow the
routers to communicate HSRP keepalives. The VG224 is an EIGRP stub, and the two
upstream routers send out only default routes to the VG224 (that's all I
want).<BR><BR>Everything is working great. Except for the fact that the two
upstream routers are equal weight. This means that when the VG224 is talking to
the active HSRP address, it's going back and forth. Since the layer two link is
up between the routers, it still works, but not ideal. Bad things happen if the
link between the routers goes down - split brain!<BR><BR>Any
pointers?<BR><BR><BR><BR><BR>---<BR>Lelio Fulgenzi, B.A.<BR>Senior Analyst (CCS)
* University of Guelph * Guelph, Ontario N1G 2W1<BR>(519) 824-4120 x56354 (519)
767-1060 FAX
(JNHN)<BR>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<BR>Cooking
with unix is easy. You just sed it and forget it. <BR>
- LFJ (with apologies to Mr. Popeil)<BR><BR></DIV></DIV>
<DIV>
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