Hi,
yes we run ripv2 and both quagga and
zebra.
The script on the primary gateway just
pings the nexthop. The return value is formated.
and stored in a log file.
Next the script checks the last three
values in the log, if current value 100 (down) or 0 (up) matches the
last
three values in the log file determines the
outcome of either stopping rip or starting it.
For example: logfile values 100 100
100 current value 100 --this would stop ripd
In order for ripd to start we would
need : 0 0 0 in the logfile and a current value 0, this would then start
ripd
! this is what is in my secondary gateway
ripd.conf
router rip
default-information originate
offset-list 1 out 4 eth0
network eth0
default-information originate
offset-list 1 out 4 eth0
network eth0
access-list 1 permit 0.0.0.0
!this is what is in my primary gateway
ripd.conf
router rip
default-information originate
network eth0
default-information originate
network eth0
Jason
From: the sew [mailto:sewlist@xxxxxxxxx]
Sent: Tue 2/7/2006 1:58 PM
To: comp.techs
Cc: lartc@xxxxxxxxxxxxxxx
Subject: Re: failover routing
sounds good, do your run ripv2 with zebra or quagga?, your idea sounds
exactly what I have in mind. Mind explaining a bit more technical and sharing
some usefull bits in your config?
Thanks
Sew
Thanks
Sew
On 2/7/06, comp.techs
<comp.techs@xxxxxxxxxxxxx>
wrote:
Hi, our network has a hand full of 2k servers that use silent rip. We use 2 Linux gateways with separate isp's.Each gateway does a ' default-originate' to advertise its default route in ripv2 (with on having a different metric).The main gateway has a ping script written in shell that will ping the gateway, determine if its up or down; With either result it checks its history of the last 3 intervals, and will only stop rip if or start rip if there is/was 3 concurrent ups or downs.I have been running this for 2 years with no problems.I hope this helps
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