| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 3593.1 | | MARVIN::PATEL | | Wed Apr 09 1997 03:41 | 8 |
| >Is this because both path is 3 hops and RIP cannot determine which path is more
>efficient ? What configuration changes is required to make sure that the faster
>path is used (assuming RIP protocol) when the metrowave fails ?
This is correct. RIP use hop count rather than metric. To get round this problem
create a RIP control protocols for the various instances to import/export the routes
and set the announce metric appropriately to get the effect you want of using the
higher bandwidth interfaces when the metrowave link breaks.
|
| 3593.2 | how do I specify IP sources ? | GIDDAY::CHONG | Andrew Chong - Sydney CSC | Thu Apr 17 1997 23:27 | 55 |
| >This is correct. RIP use hop count rather than metric. To get round this problem
>create a RIP control protocols for the various instances to import/export the r
>and set the announce metric appropriately to get the effect you want of using t
>higher bandwidth interfaces when the metrowave link breaks.
I tried to create 2 RIP control protocols (one for each of the redundent
path) , specified the ip subnets , preference and ip source . This is done in
the extra file. But the compiler complains about the ip source ! The message
in the log file is :
Enable Node CSC_NS:.CSC.x Routing Control Protocol crkRip
at 1997-04-18-11:55:35.42050 + 00:00 I 28147497.67107
Command failed due to:
process failure
One or more values in IP Sources does not belong to any<NEL>
%SYSTEM-F-ABORT, abort
This is extract from the extra file :
!
! To force issue with path over IP to Moonah when Metro wave down
! Make IP go via Creek RD (2M link) not via new norfolk(64k link) same number
! of hops
!
Create routing control proto crkRip type IP RIP
set routing control proto crkRip ip sources {192.168.242.254}
set routing control protocol crkRip rip state Send and Receive
set routing control protocol crkRip ip subnets {{addr= 172.19.0.0 -
,mask= 255.255.0.0 }}
set routing control protocol crkRip Preference 80
enable routing control protocol crkRip
!
Create routing control proto nnkRip type IP RIP
set routing control proto nnkRip ip sources {192.168.237.254}
set routing control protocol nnkRip rip state Send and Receive
set routing control protocol nnkRip ip subnets {{addr= 172.19.0.0 -
,mask= 255.255.0.0 }}
set routing control protocol nnkRip Preference 96
enable routing control protocol nnkRip
!
!
What did I do wrong ?
Andrew
|
| 3593.3 | | MARVIN::PATEL | | Fri Apr 18 1997 05:10 | 5 |
| The "IP Sources(s)" you specify must belong to one of the subnets you specify in
the "IP Subnets" attribute. In your script you are setting up a RIP instance
to run in subnet 172.19.0.0 but you are specifying that the source of RIP updates
that will be listened to is 192.168.237.254. This is obviously a mismatch and the
compiler then complains.
|
| 3593.4 | will this work ? | GIDDAY::CHONG | Andrew Chong - Sydney CSC | Mon Apr 21 1997 03:23 | 102 |
| >The "IP Sources(s)" you specify must belong to one of the subnets you specify
> in the "IP Subnets" attribute. In your script you are setting up a RIP
>instance to run in subnet 172.19.0.0 but you are specifying that the source
>of RIP updates that will be listened to is 192.168.237.254. This is obviously
>a mismatch and the compiler then complains.
Thanks for point this out. After reading the management manual on IP
routing, and IP route propergation and filtering, I come up with the following
extra script. Please review it and let me know if this will achieve what I want
to do ( to force Ip traffic over the 2M link when the metrowave fails. Current
siuation is that the failover happens on the 64K link).
CRK site NNK site
ethernet Lan
========= ======= ======================
| | | |
Brouter1--/\/---Brouter2 DECNIS2 Brouter3
| 160k |192.168.242.254 | |192.168.237.254
| |64k |2M |2M
|64k +---------+ | |
| + --------------|------------+ |
+-------+ | | +--------------------+
| | | |
| | | |
| | | |
DECNIS3 DECNIS1
| | | |
| +-------/\/-----+ |
=========== ============
172.19.0.0 Metrowave 172.20.0.0
10M
The steps taken in the script :
- delete IP subnet (192.168.242.0) and (192.168.237.0) from routing
control protocol riptxrx.
- create RIP routing control protocol for (192.168.242.0) and
(192.168.237.0)
- create receive destination filter specifying domain containing
address 172.19.0.0 and metric for each control protocol.
Question:
Given that I am creating different instances of the control protocol
for RIP, will I need to propagate the routes (RIP - RIP ) between the differnet
control protocol instance ?
The extra script :
!
! delete ip subnet for the serial interfaces from RipTxRx and create
! new rip control protocol for each.
!
delete routing control protocol RipTxRx ip subnets {{addr= 192.168.237.253 -
,mask= 255.255.255.0},{addr= 192.168.237.253 ,mask=255.255.255.0}}
!
Create routing control proto crkRip type IP RIP
set routing control protocol crkRip rip state Send and Receive
set routing control protocol crkRip ip subnets {{addr= 192.168.242.253 -
,mask= 255.255.255.0 }}
enable routing control protocol crkRip
!
Create routing control proto nnkRip type IP RIP
set routing control protocol nnkRip rip state Send and Receive
set routing control protocol nnkRip ip subnets {{addr= 192.168.237.253 -
,mask= 255.255.255.0 }}
enable routing control protocol nnkRip
!
! create domain entity for filters
!
Create routing network protocol ip domain Moonah
set routing network protocol ip domain Moonah ip address -
{{address=172.19.0.0 ,mask=255.255.0.0}}
!
! create receive destination filters with matric 3 and 6
!
Create routing control proto nnkRip receive destination 2Meg
set routing control proto nnkRip receive destination 2Meg domains -
{{routing network protocol ip domain Moonah}}
set routing control proto nnkRip receive destination 2Meg filter action pass
set routing control proto nnkRip receive destination 2Meg -
address match type prefix
set routing control proto nnkRip receive destination 2Meg metric 3
enable routing control proto nnkRip receive destination 2Meg
!
!
Create routing control proto crkRip receive destination 64K
set routing control proto crkRip receive destination 64K domains -
{{routing network protocol ip domain Moonah}}
set routing control proto crkRip receive destination 64K filter action pass
set routing control proto crkRip receive destination 64K -
address match type prefix
set routing control proto crkRip receive destination 64K metric 6
enable routing control proto crkRip receive destination 64K
|
| 3593.5 | | MARVIN::PATEL | | Mon Apr 21 1997 06:22 | 2 |
| A quick look at the script shows that it will not work since you are using metric
and there is no metric attribute on a receive destination. Use preference instead.
|