Re: OSPF Routing

From: Bob Reed (bobr@xxxxxxxxxxx)
Date: Fri May 05 2000 - 09:12:06 GMT-3


   
   It seems to me that the summary does just summarize into OSPF. If you
   are redistributing into an IGP, then the summary along with any other
   routes allowed will be redistributed. Maybe it's just a matter of
   wording. Summarization is INTO OSPF which can then redistribute it OUT
   to an IGP.
   
   Bob Reed
   
   ----- Original Message -----
   
   From: John Conzone
   
   To: Joe Martin ; wyan@ca.ibm.com ; ccielab@groupstudy.com
   
   Sent: Thursday, May 04, 2000 4:37 PM
   
   Subject: Re: OSPF Routing
   
       If I remember correctly, I had an ASBR with RIP as the other
   protocol, or maybe EIGRP, I was running both along with OSPF, but I
   was able to redistribute a summary from OSPF into the other IGP with
   the summary-adddress command. In fact I think thats its purpose.
   
   ----- Original Message -----
   
   From: Joe Martin
   
   To: wyan@ca.ibm.com ; ccielab@groupstudy.com
   
   Sent: Thursday, May 04, 2000 1:05 AM
   
   Subject: Re: OSPF Routing
   
   According to Bruce Caslow (speaking to him in person), there isn't any
   way for OSPF to summarize out of the OSPF domain. You may summarize
   into OSPF at the ASBR(summary) or summarize out of an area at the
   ABR(area range). The other way to get this IGRP network functioning
   would be to specify an IP DEFAULT-NETWORK on the router that contains
   both IGRP and OSPF. Make sure to specify a wholly unique major
   network number that does not exist within the IGRP domain.
   
   
   
   I know i've heard many people say that summary out of OSPF works, and
   to admit it I haven't tested it. Please feel free to comment.
   
   
   
   JOE
   
   ----- Original Message -----
   
   From: wyan@ca.ibm.com
   
   To: ccielab@groupstudy.com
   
   Sent: Wednesday, May 03, 2000 8:53 PM
   
   Subject: OSPF Routing
   
     You need to summarize the 30-bit and 28-bit subnets to a 24-bit
     subnet with
     a
     static route. Check the case study on P.730 of Doyle's Routing
     TCP/IP. That
     may help.
     Weidong Yan
     ---------------------- Forwarded by Weidong Yan/Markham/IBM on
     05/03/2000
     11:47 PM ---------------------------
     "Ben Rife" <brife@bignet.net> on 05/01/2000 04:31:24 PM
     Please respond to "Ben Rife" <brife@bignet.net>
     To: ccielab@groupstudy.com
     cc:
     Subject: OSPF Routing
     Hey Gang!
     Question:
     I have a frame backbone running OSPF Area 0. Two of the spokes are
     connected via ISDN as well. (Address spaces vary from /24, /30,
     /28, etc
     for 140.100.0.0 address.)
     The hub router is also connected to an IGRP domain (/24 for
     140.100.0.0).
     The problem I am having is that I can't seem to get the ISDN link
     140.100.5.0/30 advertised to the IGRP domain. The ISDN link is in
     AREA 0. I
     believe that if the link was in another area (ie 3), I could use
     the well
     known, area 3 range... cmd).
     What do I do, since it is in Area 0 and is connected to the ASBR?
     Any ideas?
     Thanks,
     Ben



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