isdn backup point-to-multipoint

Unanswered Question
Feb 3rd, 2010
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I'm looking for the optimal config for following situation


1 router with multiple bri interfaces -- connecting to several remote routers


1)So in order to bundle the bri interfaces, is it sufficient to place ppp multilink under bri interface configuration?

2)I've following config


username site1 password something



username site2 password something




interface BRI0/1/0

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/1/1

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/1/2

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/1/3

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/2/0

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/2/1

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/2/2

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink

!

interface BRI0/2/3

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

ppp multilink



interface Dialer1

ip address A.A.A.A

encapsulation ppp

no ip mroute-cache

delay 1000

dialer in-band

dialer idle-timeout 1800

dialer map ip X.X.X.X name site1 broadcast NUMBER

dialer map ip Y.Y.Y.Y name site2 broadcast NUMBER

dialer-group 1

no snmp trap link-status

no peer default ip address

no cdp enable

ppp authentication chap

ppp multilink


+ dialer list and acl and floating static



it added automatically the command under each bri interface:  isdn point-to-point-setup which I removed--> ok?

Is this config ok, for bundling BRI interfaces? --> ppp multilink

is it true that I can remove ppp authentication chap from the BRI interfaces and configure it only on the logical interface



3)if I do show interface dialer1, should I see the aggregate bandwidth? Now I see 56

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