From: Mohamed (nmohamed@cisco.com)
Date: Wed Apr 28 2004 - 04:20:18 GMT-3
I tried in my router,
A----------B----------C---------D
A,B are IBGP,running OSPF.
B redistributing OSPF into BGP.
C is EBGP of B.
D is Ebgp of C
Now in C,we get the metrics from B,bcoz C only reset the metric to zero.
In D we don't get metric.
Now if u put route-map and set metric-type int or even set origin igp,I
don't get any mteric in D,bcoz MED is a optional
Non-transitive attribute,which never passed to EBGP peers.
Thanks
Mohamed.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sergio Jimenez Arguedas
Sent: Wednesday, April 28, 2004 2:29 AM
To: ccielab@groupstudy.com
Subject: BGP MED Scenario!!!
Hi Group,
I have a question about BGP MED, the scenario is the following:
--------------EB GP----------------------R4
OSPF |
|ibgp
NETA
----------R1------------------------------R2------------EBGP------------
-----
-----R3-------------EBGP-----------------R5
R1 Tx NETA to R2 by OSPF and R2 Tx NetA to R3/R4 by EBGP. R3 and R4 Rx
NETA with the IGP (OSPF) metric. When R3 Tx the route R5, R5 Rx the
route with the metric 0. I understood it, but I have the following
question:
If I apply a route-map from R3 to R5 with set metric-type
internal.......This would cause BGP routes to carry the internal IGP
metric as the BGP MED?
R3/R4 carried the IGP metric without a route-map in R2.
Could you help me, please?
Reference: HALABI Pag_340
Rgds,
Sergio Jiminez A.
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