Administrator Guide

Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Introduced the ability to substitute IGP cost for MED when a peer/peer-group
outbound route-map is set as internal.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage
Information
You can use the redistribute command to advertise the IGP cost as the MED on redistributed
routes. When you set the route-map with metric-type internal and applied outbound to an EBGP peer/
peer-group, the advertised routes corresponding to those peer/peer-groups have the IGP cost set as
MED.
If you do not configure the default-metric command, in addition to the redistribute command,
or there is no route map to set the metric, the metric for redistributed static and connected is “0”.
To redistribute the default route (0.0.0.0/0), configure the neighbor default-originate
command.
As BGP does not query next-hop information corresponding to locally originated routes, a local route with
an unreachable next-hop is chosen as the best route.
When a combination of locally originated and peer originated routes occurs, both these routes will exist
in the RTM. However, only the best route is kept active in the RTM and the remaining route is rendered
in-active.
It is possible to keep only one locally originated route in the BGP database. Network command has
preference over the re-distributed routes. When the locally originated route is no longer present in the
database the other route is automatically installed.
Related
Commands
● neighbor default-originate — inject the default route.
redistribute ospf
Redistribute OSPF routes into BGP.
Syntax
redistribute ospf process-id [[match external {1 | 2}] [match internal]]
[route-map map-name]
To stop redistribution of OSPF routes, use the no redistribute ospf process-id command.
Parameters
process-id Enter the number of the OSPF process. The range is from 1 to 65535.
match external {1
| 2}
(OPTIONAL) Enter the keywords match external to redistribute OSPF external
routes. You can specify 1 or 2 to redistribute those routes only.
match internal (OPTIONAL) Enter the keywords match internal to redistribute OSPF internal
routes only.
402 Border Gateway Protocol