From: Katson PN Yeung (kyeung@xxxxxxxxx)
Date: Thu Apr 25 2002 - 00:12:12 GMT-3
Dear Group,
It seems that my previous "igrp metric" does not draw your attention. So I
did more tests to find out... I am using 12.1.12a
|-----|s0 s1|-----|
| R5 |-----| R8 |---E0
| | | |
|-----| |-----|
| |
| ( )
Lo0 tok0
both R5 and R8 are igrp only router. Both running 12.1.12a
Interface BW Delay (usec) IP
--------- ------ ------------ -------------------
R5 s0 1544K 20000 172.168.200.5/24
R8 s1 64K 20000 172.168.200.8/24
R8 Lo0 8000000K 5000 160.10.10.1/24
R8 Tok 0 16000K 630 172.168.80.1/24
R8 E0 1000K 1000 172.168.48.1/24
Test 1.
---------------------------------------------------------
- R8 With this config:
router igrp 3
redistribute connected metric 2000 100 255 1 1500 route-map connected-2-igrp
network 172.168.0.0
!
access-list 2 permit 160.10.10.0 0.0.0.255
access-list 3 deny any
!
route-map connected-2-igrp permit 10
match ip address 2
!
route-map connected-2-igrp permit 20
match ip address 3
Result: (debug igrp at R5)
2d22h: IGRP: received update from 172.168.200.8 on Serial1.2
2d22h: subnet 172.168.48.0, metric 8576 (neighbor 5100)
2d22h: subnet 172.168.80.0, metric 8576 (neighbor 5100)
2d22h: network 165.10.0.0, metric 8976 (neighbor 501)
2d22h: IGRP: Update contains 2 interior, 3 system, and 0 exterior routes.
2d22h: IGRP: Total routes in update: 5
R8 announce 5100 for tok0 and E0, 501 for lo0
Test 2.
---------------------------------------------------------
R8 with this config
router igrp 3
network 172.168.0.0
Result: (debug igrp at R5)
2d23h: IGRP: received update from 172.168.200.8 on Serial1.2
2d23h: subnet 172.168.48.0, metric 12100 (neighbor 10100)
2d23h: subnet 172.168.80.0, metric 8539 (neighbor 688)
Questions:
---------------------------------------------------------
1. In test 1 the intention is to redistribute Lo0 to igrp and set it's
metric according to my redistribute metric (2000 100 255 1 1500) = 5100.
However it uses it own interface metric 501.
2. In test 1, the route-map is to confine the redistribution to Lo0, while
leaving other interface (tok0, E0) untouched. However, E0 and Tok0 metrics
are changed to the 5100 (2000 100 255 1 1500, specified at the redis
connected line.)
3. In test 2, I just erase the "redis connected" and do a "clear ip route
*". R8 announce metric back to normal!!! (10100 for E0 amd 688 for Tok0)
Can some people tell me why??
I suppose, in igrp, redistribute connected actually first include *ALL*
connected interfaces and set it's metrics according to the redis command
line. Then it processes the route-map part, and mport the right connected
interface to the route table....
But why the redistributed route metric does not affected the connected
route?? Really clueless.
Maybe I will try to do it again with EIGRP.
Rgds,
K a t s o n
-----
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