henryc@osc.edu (Henry Clark) (08/28/90)
We have a network configuration which looks like:
Network A Network B
----------- -----------
| |
----- ------ -----
|Sun|----------|Cray|----------|NSC|
----- ------ -----
We're currently using Network A as the default route to the Cray, but
we'd like to switch to using Network B as the default route. We're trying
to use gated on the Cray to listen to information from the NSC router and
set its default route there, but if the NSC box dies, then the default should
switch (temporarily :-)) back to the Sun.
As a test of the default route changing ability of gated, we ran a test
between a Sun (on Network B) and the NSC box and gated properly changed
the default route to the NSC, and then reverted back to the old route
when we disabled the NSC box. However, the Cray, using similar configuration
information for gated, fails to do this even when it heard of a lower
cost route (of 2 versus 13) through the NSC box. I've included the
configuration file for gated at the bottom of this message for the Cray.
Normally the Cray uses static routing - will gated override these static
routes when it is running?
On a separate note, has anyone ever examined the route metrics issued
from a NSC box via SNMP? The results are most interesting (well, I'd
never heard of a route metric of 80 :-)).
Thanks,
Henry
henryc@[osc.edu,oar.net]
=========================================================
gated config file for the Cray:
RIP pointopoint <--- supplier so it will time out the interface
HELLO no
EGP no
sourceripgateways 131.187.194.1 <--- NSC box adress
trustedripgateways 131.187.194.1 128.146.17.2 <--- NSC box and the Sun
defaultgateway 128.146.17.2 rip metric 13 active <--- the Sun
donotlistenhost 128.146.17.2 intf all proto rip <--- the Sun
passiveinterfaces 131.187.193.5 <--- special interface for Cray
=========================================================