ISDN Upgrade from 64k to 128K

[ciscosinghji]

Hi all

I'm new to this forum and also new to CISCO prdoucts. Just got new job as an entry level in Networking.

My question is how would i upgrade ISDN line from 64k to 128k and what kind things i should keep in mind when doing this upgarde.

Any LINKS would be a great assest.

Thank you All.

[prafuljaded]

Nothing much..

You will have to configure the new dial string your ISP has given you. Remove the earlier one. Also you can do :

config-if# dialer load-threshold 100

So that U can use both 64K B Channels once your traffic crosses 100/255 %

This might help:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_c/dcbri.htm

[brandon.applegate]

Another thing to keep in mind (depends on where you are geographically and who your telco is) is that you may have to add/change SPIDs. Your telco should (hopefully) give you this info when you expand the line though.

[vincent-n]

On top of the "load threshold ..." statements, you'll have to make sure that your encapsulation is set to run PPP and also don't forget to issue the command "ppp multi-link" in your config else your "dual" 128K ISDN will not be seen as one single virtual link.

[gscholz]

Recommend you run no fair queue on BRI and dialer interface if you are running virtual interface config

When using PPP multilink - do a software bug search and check recommendations for router type and IOS