Configuring T1 CSU/DSU with PPP

Unanswered Question
May 26th, 2009
User Badges:

We recently subscribed to 2 T1 (PPP) ckts through a service provider and were provided with the static IP addresses and ecapsulation type (PPP). I have installed 2 T1 (CSU/DSU) modules but I need to ensure that I have the correct configurations on these modules. Could someone please assist me in providing me with what I need to configure on the interfaces?


Thanks in advance,

sK

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Collin Clark Tue, 05/26/2009 - 10:33
User Badges:
  • Purple, 4500 points or more

Can you post a show inventory so we can see what type of cards you have?

Richard Burts Tue, 05/26/2009 - 10:33
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

  • Cisco Designated VIP,

    2017 LAN, WAN

sK


The syntax of what you need to configure varies somewhat based on what platform you are configuring. If you would tell us what model of router this is and what cards they are we might be able to give more specific advice. In general the things that you need to have in the config would include clock source, timeslots, framing (usually esf), and linecode (usually b8zs), encapsulation ppp, and IP address and mask.


HTH


Rick

skhirbash Tue, 05/26/2009 - 14:56
User Badges:

Here is output of sho invt:

NAME: "2851 chassis", DESCR: "2851 chassis"

PID: CISCO2851 , VID: V04 , SN:


NAME: "WAN Interface Card - DSU/CSU T1 Fractional (V2)", DESCR: "WAN Interface Card - DSU/CSU T1 Fractional (V2)"

PID: WIC-1DSU-T1-V2 , VID: 1.2, SN:


NAME: "NME-XD-48ES-2S-P: EtherSwitch SM 48 10/100T PoE + 2 SFP", DESCR: "NME-XD-48ES-2S-P: EtherSwitch SM 48 10/100T PoE + 2 SFP"

PID: NME-XD-48ES-2S-P , VID: V01 , SN:


Thanks,

sK

Collin Clark Wed, 05/27/2009 - 05:20
User Badges:
  • Purple, 4500 points or more

Great, thanks. Your config will be straight forward since you don't have to configure the CSU/DSU.


<b><font size="2"></p><p>interface s0/0/0</p><p>no ip address</p><p>encapsulation ppp</p><p>multilink</p><p>ppp multilink group 2</p><p></p><p>interface s0/0/1</p><p>no ip address</p><p>encapsulation ppp</p><p>multilink</p><p>ppp multilink group 2</p><p></p><p>interface Multilink2</p><p> description MLPPP Link</p><p> ip address [YOUR IP] </p><p> ppp multilink</p><p> ppp multilink links maximum 4</p><p> ppp multilink group 2</p><p> ppp multilink fragment disable</p><p></b></font>


Hope that helps.


Actions

This Discussion