RE: Problem with set metri command

From: Michael Zuo (mzuo@ixiacom.com)
Date: Fri Oct 13 2006 - 21:03:08 ART


As you can see from the output below, the "+" option is not working for
me. the default-metric is 20, so for 30.0 and 31.0 network the metric
on R5 for these routes should be 20+30=50

What am I missing here?

Topology: R1----R5

On R1:

R1(config-route-map)#do sh run | be router os

router ospf 1

 router-id 1.1.1.1

 log-adjacency-changes

 auto-cost reference-bandwidth 20000

 area 0 authentication message-digest

 redistribute eigrp 100 subnets route-map prefer

 network 136.1.15.1 0.0.0.0 area 0

 network 150.1.1.1 0.0.0.0 area 0

 default-metric 20

 distribute-list route-map fromEIGRP in

!

!

no ip http server

ip classless

!

!

!

ip prefix-list BB1 seq 5 permit 212.18.0.0/22 ge 24

!

ip prefix-list BB3 seq 5 permit 30.0.0.0/14 le 32

ip prefix-list BB3 seq 10 permit 31.0.0.0/14 le 32

!

ip prefix-list VLAN3 seq 5 permit 136.1.3.0/24

!

route-map prefer permit 10

 match ip address prefix-list BB3

 set metric +30

 set tag 1

!

route-map prefer permit 20

 match ip address prefix-list BB1

 set metric 10

 set tag 1

!

route-map prefer permit 30

 set tag 1

On R5:

O E2 31.3.0.0 [110/30] via 136.1.15.1, 00:00:07, Serial0/0.15

O E2 31.2.0.0 [110/30] via 136.1.15.1, 00:00:07, Serial0/0.15

O E2 31.1.0.0 [110/30] via 136.1.15.1, 00:00:08, Serial0/0.15

O E2 31.0.0.0 [110/30] via 136.1.15.1, 00:00:08, Serial0/0.15

     150.1.0.0/24 is subnetted, 6 subnets

R 150.1.7.0 [120/1] via 136.1.57.7, 00:00:25, FastEthernet0/1

O E2 150.1.6.0 [110/20] via 136.1.15.1, 00:00:08, Serial0/0.15

C 150.1.5.0 is directly connected, Loopback0

O 150.1.4.0 [110/12954] via 136.1.245.4, 00:00:08, Serial0/0.245

O E2 150.1.3.0 [110/20] via 136.1.15.1, 00:00:01, Serial0/0.15

O E2 150.1.2.0 [110/20] via 136.1.15.1, 00:00:01, Serial0/0.15

O 150.1.1.0 [110/12954] via 136.1.15.1, 00:00:11, Serial0/0.15

B 205.90.31.0/24 [20/0] via 192.10.1.254, 00:01:33

     30.0.0.0/16 is subnetted, 4 subnets

O E2 30.2.0.0 [110/30] via 136.1.15.1, 00:00:01, Serial0/0.15

O E2 30.3.0.0 [110/30] via 136.1.15.1, 00:00:01, Serial0/0.15

O E2 30.0.0.0 [110/30] via 136.1.15.1, 00:00:01, Serial0/0.15

O E2 30.1.0.0 [110/30] via 136.1.15.1, 00:00:01, Serial0/0.15

________________________________

From: Cagri Yucel [mailto:cyucel@gmail.com]
Sent: Thursday, October 12, 2006 11:46 PM
To: Michael Zuo
Cc: ccielab@groupstudy.com
Subject: Re: Problem with set metri command

Well does the same thing if you assume if you always have the default
metric of zero. If somehow you have a metric of 50 already one ends up
with 30 other 80 :)

On 10/12/06, Michael Zuo <mzuo@ixiacom.com> wrote:

Hi Group,

can any one give me some help on the "set metric" command? more
specifically,
what is the difference between "set metric +30" and "set metric 30"?
the
following configuration is supposed to add 30 to the metric of
redistributed
routes. but instead, it sets the metric to 30. this suggests that the
two
command do exactly the same thing. is this correct?

thanks in advance...

=====================

R1(config-route-map)#set metric ?
+/-<metric> Add or subtract metric
<0-4294967295> Metric value or Bandwidth in Kbits per second
<cr>

R1(config-route-map)#do sh run | be router os
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
auto-cost reference-bandwidth 20000
area 0 authentication message-digest
redistribute eigrp 100 subnets route-map prefer
network 136.1.15.1 0.0.0.0 area 0
default-metric 20
!
no ip http server
ip classless
!
!
!
ip prefix-list BB1 seq 5 permit 212.18.0.0/22 ge 24
!
ip prefix-list BB3 seq 5 permit 30.0.0.0/14 le 32
ip prefix-list BB3 seq 10 permit 31.0.0.0/14 le 32
!
route-map prefer permit 10
match ip address prefix-list BB3
set metric +30
!
route-map prefer permit 20
!



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