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List:       ms-ospf
Subject:    Re: What will happen in this kind of topology with 100 nbrs and 2000 ASEs ??
From:       Sean Andersen <farshad () ONEBOX ! COM>
Date:       2004-10-26 0:04:36
Message-ID: B0035909846 () vljcms10 ! ucmretail ! internal ! callsciences ! com
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Mollin,

I agree with every answer sent so far. But here is one more thing to look at: Have \
you checked the GIG link to see if it is flapping? I know of some vendors (will not \
name names here) that still have some issues/compatibiliy on the Gig links and flap \
up and down constantly.

Sean


-----Original Message-----
From:     Mollin, Arvind - LiqwidKrystal <arvindmollin@RIVERSTONENET.COM>
Sent:     Sun, 24 Oct 2004 21:42:12 -0700
To:       OSPF@PEACH.EASE.LSOFT.COM
Subject:  What will happen in this kind of topology with 100 nbrs and 2000 ASEs ??

Hi,

  I have two routers connected back to back through a gig link. I have
configured 100 VLANs in that single gig link, now each vlan act as
virtual interface. I have configured 100 neighbors on each router using
these 100 virtual interfaces. All the neighbors are in backbone. See the
figure below,



( 100 nbrs )R1 -------------100 vlans ------------------ R2 ( 100 nbrs )



After sometime I could see all nbrs flapping often. What could be the
reason for this ??

Is this topology right?, Has anybody tested with this kind of setup ??



Thanks

Arvind


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<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>Hi,<o:p></o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>&nbsp; I have two \
routers connected back to back through a \
gig 
link. I have configured 100 VLANs in that \
single gig link, now each vlan act as 
virtual interface. I have configured 100 \
neighbors on each router using these 
100 virtual interfaces. All the neighbors \
are in backbone. See the figure 
below,<o:p></o:p></span></font></p>



<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>( 100 nbrs )R1 \
-------------100 vlans ------------------ \
R2 
( 100 nbrs )<o:p></o:p></span></font></p>



<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>After sometime I could \
see all nbrs flapping often. What 
could be the reason for this \
??<o:p></o:p></span></font></p> 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>Is this topology \
right?, Has anybody tested with this kind 
of setup ??<o:p></o:p></span></font></p>



<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>Thanks<o:p></o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'>Arvind<o:p></o:p></span></font></p>
 


<p class=MsoNormal><font size=2 \
face=Arial><span style='font-size:10.0pt; 
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>
 


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