From jshen_cad at yahoo.com.cn  Thu Dec  2 04:46:05 2004
From: jshen_cad at yahoo.com.cn (Jing Shen)
Date: Thu Dec  2 04:46:24 2004
Subject: [Irtf-rr] Number of Routes and network stability
Message-ID: <20041202094605.47235.qmail@web15408.mail.cnb.yahoo.com>

Hi,

Some vendors recommended that number of routers within
one OSPF area should not exceed 50, some others
recommended  number of routes within one area should
not exceed 3000. 

To my understanding, OSPF stability is directly
related to link stability, radius of an OSPF area and
OSPF implementation( router hardware, methodology of 
link status processing). But, is there any research
done on this topic? or how are those recommendation
derived ?

thanks

Jing Shen

_________________________________________________________
Do You Yahoo!?
注册世界一流品质的雅虎免费电邮
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/
From jshen_cad at yahoo.com.cn  Thu Dec  2 20:28:38 2004
From: jshen_cad at yahoo.com.cn (Jing Shen)
Date: Thu Dec  2 20:28:59 2004
Subject: [Irtf-rr] Re: Number of Routes and network stability
In-Reply-To: <F7BCEF17E9962143A48BF3BFA701661A9A4793@zrtphxm0.corp.nortel.com>
Message-ID: <20041203012838.83786.qmail@web15409.mail.cnb.yahoo.com>

Hi, 

Reading  preivious post on OSPF list
(http://peach.ease.lsoft.com/scripts/wa.exe?A2=ind0410&L=ospf&T=0&F=&S=&P=6696),
it seems amount of LSA announcement is another
possible reason for route flaping.

Should it limit the number of link state announced on
one interface ? 

regards


> The recommendation for number of routers per area is
> usually derived by
> considering the amount of processor power and memory
> available to the
> routers in an area. Usually you consider the lowest
> common denominator. This
> means the smallest router (the router with the
> fewest resources) limits the
> size of the area.
> 


=====
Jing Shen

Data Communication Center
HangZhou TeleCom 
HangZhou ZJ 310027
P.R.China

' spamcontrol '

_________________________________________________________
Do You Yahoo!?
注册世界一流品质的雅虎免费电邮
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/