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Problems configuring PRI E1 ISDN backup link - can anyone help

Hi,

I have two sites both with cisco 2600 series routers with channelized E1 cards, both sites have Primary Rate ISDN with 8 channels activated. The idea is to provide all 8 channels bonded together to provide 512k backup link to our 2Mb serial VPN connection.

I can't find any documentation on configuring PRI ISDN to PRI ISDN, most of the docs cover BRI to PRI.

Is there anyone out there who has done this or knows how to do it???

  • Other Network Infrastructure Subjects
2 REPLIES
Silver

Re: Problems configuring PRI E1 ISDN backup link - can anyone he

To configure the PRI as backup you would need to use the backup interface command. You could use floating static routes or dialer watch also. However for docs on the PRI, check if any of the docs on the support page, under the T1/E1 PRI section.

http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Internetworking:ISDN&s=Implementation_and_Configuration

Silver

Re: Problems configuring PRI E1 ISDN backup link - can anyone he

Pick a configuration which does what you want using a BRI interface and multilink PPP. Translation to a PRI interface is trivial: copy the statements under "interface BRI" to your PRI interface, changing the ISDN switch type to match your PRI.

Good luck and have fun!

Vincent C Jones

www.networkingunlimited.com

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