Redistributing vs. advertising

[gkuzmowycz]

I've read a lot of Cisco documentation and have worked through the relevant sections of Jeff Doyle's book, but I'm still having difficulty with this topic. Can somebody give a "25 words or less" sort of explanation of the difference between "redistributing via" and "advertised by"?

[gkuzmowycz]

How long did you wait?

It had been over 24 hours.

Try clearing the route table.

That fixed it. Thanks.

[milan.kulik]

Hi Edison,

IMHO, the explanantion might be:

The "Advertising by" line is showing the particular command used for the redistribution from one routing protocol to the other.

I.e., in your case, you probably use:

router ospf 1

redistribute eigrp 1 metric 1 1 1 1 1 route-map CONNECTED-TO-IGP

and

router eigrp 1

redistribute ospf 1 subnets route-map CONNECTED-TO-IGP

aren't you?

I can't explain the previous example:

"R2#sh ip route 172.28.0.0

Routing entry for 172.28.0.0/16

Known via "connected", distance 0, metric 0 (connected, via interface)

Redistributing via eigrp 1, rip

Advertised by rip"

It looks like a RIP route redistributed into EIGRP by "redistribute rip" command.

I can't remember: isn't there RIP redistribution to EIGRP automatic in IOS?

BR,

Milan

[Edison Ortiz]

I.e., in your case, you probably use:

router ospf 1

redistribute eigrp 1 metric 1 1 1 1 1 route-map CONNECTED-TO-IGP

and

router eigrp 1

redistribute ospf 1 subnets route-map CONNECTED-TO-IGP

aren't you?

Yes.

I can't remember: isn't there RIP redistribution to EIGRP automatic in IOS?

No.

__

Edison