From: Arun Arumuganainar (aarumuga@hotmail.com)
Date: Sat Jul 23 2005 - 12:36:08 GMT-3
Hi Shanky ,
This is really tricky . Let me suggest few things that you may find useful .
1) FR switch can be used as a router too . You can use it as core router or
in the Back bone ...No harm ..FR Switching does not interfere with ip
routing .
2) You can use Cat Switch as a router too ( may be a back bone router ) .
3) Still if your running out of routers . Try doing this . Enable VRF on
interfaces and Runn routing protocol instances . For ex : If a router has
for interfaces and your requirement is 2 routers having 2 interfaces .
Then you can logically split the router in to two routers by configuring VRF
( popularly used in MPLS VPN ) . You run different instances of protocol on
each VRF . Believe me ... You can combine all the back bone routers( for ex:
IP EXPERT Topology uses 3 Back bone routers ) in to one and runn 3
different routing protocols ..as though u have 3 routers .!!!
Thanks and Regards
Arun
----- Original Message -----
From: "Shanky" <shankyz@gmail.com>
To: "Group Study" <ccielab@groupstudy.com>
Sent: Saturday, July 23, 2005 5:17 PM
Subject: Minimum Number of Routers required for Practice Labs
> Hello everyone,
> Can you guys let me know ..the absolute minimum routers needed for
> practice....
> I believe most of the technologies can be practiced with 4-5 routers so
why
> do all the vendors like IE,IP and NMC use so many routers in their
> topologies ?
> I think most of the workbooks are designed with topology containing 10+
> routers .. does one really need such large number of routers ?
> Can we not use the FR Switch (Cisco Router ) as backbone and and whats
the
> minimum number of routers one should go for ?
> At the moment , I have started practice with my own ..designed small
> topologies of 3-4 routers but I want to know if anyone is using any
standard
> topology over which most of the IGPs & BGP can be practiced without making
> Physical changes.
> TIA
> Shanky
>
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