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Community Member

Bonding ISDN

Can you bond/aggregate ISDN lines. For example take 3 ISDN lines and get a complete 384K pipe. Can this be done with a Cisco 2600/3600 with a NM-4B-U or a NM-8B-U ?

Thanks

4 REPLIES
Community Member

Re: Bonding ISDN

Hi,

You can combine multiple ISDN b-channel by using dialer profile together with ppp multilink.

cheers!

Community Member

Re: Bonding ISDN

i need to bond two ISDN lines on two WIC ISDN cards (1750) dialing to a remote site( 2610 with 4 port ISDN NM) can you give me a sample config for this kind of a setup....

Thanks

Community Member

Re: Bonding ISDN

!

interface BRI0/0

description ISDN LINE

no ip address

no ip directed-broadcast

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-ni

isdn spid1 (SPIDS)

isdn spid2 (SPIDS)

no cdp enable

!

interface BRI0/1

description ISDN LINE

no ip address

no ip directed-broadcast

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-ni

isdn spid1 (SPIDS)

isdn spid2 (SPIDS)

no cdp enable

!

interface Dialer1

ip unnumbered Ethernet0/0

no ip directed-broadcast

encapsulation ppp

no ip split-horizon

dialer in-band

dialer idle-timeout 2147483

dialer string Phone number to Main Router

dialer string

dialer string

dialer string

dialer load-threshold 1 either

dialer-group 1

no cdp enable

ppp authentication chap

ppp chap hostname (USERNAME if AUTH)

ppp chap password (CHAP PASSWORD)

ppp multilink

Community Member

Re: Bonding ISDN

what about if you want to bond two PRI (T1) lines together? Looking to do this on a 3660 with 2 PRI cards w/CSU/DSU to a 7500 with a multiport PRI w/CSU/DSU.

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