Using the 'route:' keyword, is there a way to create dependencies when
you are using a Cisco router with 2 T-1s using Cisco Express Forwarding
(CEF)?
I have a remote router that has 2 T-1s balancing using CEF. Behind this
router are multiple devices that need to not alert if both T-1s are
down.
This would be very similar to have a single T-1 line to the remote site
except I have to be able to group both T-1s together.
Can you do something like:
Near end router: Ethernet port Local-Eth
Near end router: Serial 0 and Serial 1 Local-S0 and
Local-S1
To
Far end router: Serial 0 and Serial 1 respectively
Remote-Eth
Far end router: Ethernet port
Remote-S0 and Remote-S1
To
Rest of the network at the remote site e.g.
Remote-Switch
Can you group devices together using ()'s?
Something like:
I want Remote-Switch to depend upon both T-1s being
down:
10.10.10.10 Local-Eth
10.10.20.20 Local-S0
10.10.20.21 Local-S1
10.10.20.22 Remote-S0
10.10.20.23 Remote-S1
10.10.30.30 Remote-Eth
10.10.30.31 Remote-Switch #
route:Remote-Eth,(Remote-S0,Remote-S1),Local-Eth
Would this work?
This says that the Remote-Switch needs to have the
Remote-Eth (Ethernet) connection as a dependency.
It also needs both T-1s up and the Local-Eth (Ethernet)
connection up.
CEF is a Cisco balancing protocol for multiple same
connections to a remote location.
If one T-1 is down, the other T-1 will be tasked with
handling all the traffic.
When the down T-1 returns, it again participates in the
traffic load.
Thanks,
Tom Schmitt