T1 link (ppp?) between router and Dslam

[KodiakAK]

I am working on a lab environment where I want to connect a router to a zhone Dslam through a t1 link. is ppp the correct encapsulation, or should I use Frame relay? When I bring up the t1 controllers, it wont activate the serial interface unless I issue the channel-group x timeslots 1-24. Why is this command necessary, I thought time slots would be for if i wanted to break out individual DS0s? Would someone explain what a BVI is? DLCI?


In the Dslam, the only t1 options are framing and linecode, which makes sense because it is a layer two device and I wouldnt need to add an IP address to the T1 link on that side.

thanks

 

[KodiakAK]

here are the relevant portions of the config

controller T1 0/0/0
cablelength long 0db
channel-group 0 timeslots 1-24
!
controller T1 0/0/1
cablelength long 0db
channel-group 0 timeslots 1-24
!
!
!
!
interface Multilink1
ip address 192.168.254.193 255.255.255.192
no ip redirects
no ip proxy-arp
ip nat inside
ip virtual-reassembly
no ip route-cache cef
no ip route-cache
no cdp enable
ppp multilink
ppp multilink group 1



interface Serial0/0/0:0
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache cef
no ip route-cache
load-interval 30
no keepalive
no fair-queue
no cdp enable
ppp multilink
ppp multilink group 1
!
interface Serial0/0/1:0
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache cef
no ip route-cache
load-interval 30
no keepalive
no fair-queue
no cdp enable
ppp multilink
ppp multilink group 1
!



I cant ping the multilink ip address, should I be able to?

 

[KodiakAK]

show int desc says multilink is down. I guess the far end would have to be configured for multilink too, which isnt possible on this equipment. I wonder if it speaks HDLC?

 

[KodiakAK]

Transmission engineer says t1 ports are for TNE modems and I will never be able to uplink to them, even though the documentation says uplink ports.