[j-nsp] Filtering OSPF routes

[Kent Yu]

IOS only allows filtering type-3 at ABR, I think the original poster's
intend was to filter LSA within the same area.

The feature could be useful for enterprise networks, do not think it is
helpful for the SPs.

Thanks
--kent
----- Original Message -----
From: "Wayne (juniper nsp)" <wg-jnpr-nsp at wgustavus.com>
To: "Ben Buxton" <B.Buxton at Planettechnologies.nl>; "Ajay Bhardwaj"
<ajay.bhardwaj at in.spectranet.com>; <juniper-nsp at puck.nether.net>
Sent: Saturday, February 15, 2003 11:42 PM
Subject: Re: [j-nsp] Filtering OSPF routes


MessageActually, if you are running a sufficiently high enough version of
IOS (e.g. 12.0S), the 7200 can filter some LSAs.  It depends on your exact
scenario if this will accomplish what you are trying to do.  It does tend to
go contrary to the design of OSPF (or any link state protocol), but I
suppose enough people wanted the knob, so they got it.

Not sure if JUNOS has a similar knob.

- Wayne
  ----- Original Message -----
  From: Ben Buxton
  To: Ajay Bhardwaj ; juniper-nsp at puck.nether.net
  Sent: Monday, February 10, 2003 4:18 AM
  Subject: RE: [j-nsp] Filtering OSPF routes



  You cannot filter OSPF. This would break the requirement that all routers
have
  the same link state view.
  This is true for both Junos and IOS.

  BB
    -----Original Message-----
    From: Ajay Bhardwaj [mailto:ajay.bhardwaj at in.spectranet.com]
    Sent: Monday, 10 February 2003 08:39
    To: juniper-nsp at puck.nether.net
    Subject: [j-nsp] Filtering OSPF routes


    Hi all,

    We have cisco 7200 router and M-5 router both running ospf and part of
area 10.

    I want to deny few routes which are flowing trough ospf from 7200 to m5
either at 7200 side or m5 side. Pls if anyone have any solution to this
would be gr8 help for me.

    Ajay Bhardwaj



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