[c-nsp] Monitoring failed state of DSL / Cable (Ethernet) interfaces

[Luan Nguyen]

These three would do :)

http://www.cisco.com/en/US/partner/tech/tk583/tk372/technologies_white_paper
0900aecd801d5004.shtml

http://www.cisco.com/en/US/partner/about/ac123/ac114/ac173/Q2-04/department_
techtips.html

http://www.cisco.com/en/US/partner/products/sw/iosswrel/ps5413/products_feat
ure_guide09186a00801d862d.html

Let me know if you need more information on this.  I have a design for ISDN
backing up DSL for VPN.

Luan




-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Brian Feeny
Sent: Tuesday, March 01, 2005 1:10 PM
To: 'cisco-nsp'
Subject: [c-nsp] Monitoring failed state of DSL / Cable (Ethernet)
interfaces


I have a configuration where I am load balancing default routes over 2 
WAN interfaces.

One interface is a T1 and the other is an ethernet interface plugged 
into a DSL / Cable bridge.

My concern is that if the connectivity goes down on the Cable / DSL 
then the interface
may stay up, since the ethernet connection may still look good.

I think some of you are using SAA stuff to deal with his, does anyone 
have any links on this?

Basically I just want to check the next hop and if its down, then pull 
the route.

Brian

---------------------------------------------
Brian Feeny, CCIE #8036, CISSP
Network Engineer
ShreveNet Inc.

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