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x.25 ISDN backup

a.mountouris
Level 3
Level 3

Hello,

we have an ISDN backup line between a client (having unfortunatelly motorola router) and our main site. This isdn backs up a leased line of 128 Kbps and the encapsulation used is x25. In fact the whole network is x25 (it is used to carry SNA data).

The main site has a PRI controller that backs up about 9 clients, so we have defined about 9 dialer profiles.

On one of them we want to have bandwidth of 128 Kbps (so, not only one "serial" to be bound to the dialer profile but two).

Is there a way to accomplish this having in mind we only use x25 encap between the sites?

The connection works fine, this is not a problem of non connectivity. It is a matter of upgrading the isdn to 128 Kbps on a PRI controller when x25 encap is used.

1 Reply 1

lgijssel
Level 11
Level 11

Just a tip. Instead of using X25encap on the link, you might consider using a GRE tunnel. You could then switch the X25 traffic over the GRE tunnel?

http://www.cisco.com/en/US/tech/tk827/tk369/tk287/tsd_technology_support_sub-protocol_home.html

This is one of the issues that GRE was originally developed for.

Regards,

Leo