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Channelized DS3 in 3845

Jake Pratt
Beginner
Beginner

Hey everyone.  I am upgrading from an old 7204VXR to a 3845.  I am running a DS3 in the 7200, channelized into 28 point to point T1's.  I need to break them all out into individual Serial interfaces on the new 3845, like I have on the 7200, but I don't know the correct commands.

On the 7200, I have these commands:

controller T3 1/0

cablelength 150

t1 1 channel-group 0 timeslots 1-24

t1 2 channel-group 0 timeslots 1-24

t1 3 channel-group 0 timeslots 1-24

t1 4 channel-group 0 timeslots 1-24

t1 5 channel-group 0 timeslots 1-24

t1 6 channel-group 0 timeslots 1-24

t1 7 channel-group 0 timeslots 1-24

t1 8 channel-group 0 timeslots 1-24

t1 9 channel-group 0 timeslots 1-24

t1 10 channel-group 0 timeslots 1-24

t1 11 channel-group 0 timeslots 1-24

t1 12 channel-group 0 timeslots 1-24

t1 13 channel-group 0 timeslots 1-24

t1 14 channel-group 0 timeslots 1-24

t1 15 channel-group 0 timeslots 1-24

t1 16 channel-group 0 timeslots 1-24

t1 17 channel-group 0 timeslots 1-24

t1 18 channel-group 0 timeslots 1-24

t1 19 channel-group 0 timeslots 1-24

t1 20 channel-group 0 timeslots 1-24

t1 21 channel-group 0 timeslots 1-24

t1 22 channel-group 0 timeslots 1-24

t1 23 channel-group 0 timeslots 1-24

t1 24 channel-group 0 timeslots 1-24

t1 25 channel-group 0 timeslots 1-24

t1 26 channel-group 0 timeslots 1-24

t1 27 channel-group 0 timeslots 1-24

t1 28 channel-group 0 timeslots 1-24

But on the 3845, it will not allow me to use the "t1" command.  What do I need to do to channelize my DS3?  I am using the NM-1T3/E3 card in slot 4, and have set up "card type t3" (Controller T3 4/0).

So I only have the 1 serial interface by default, but I need 28.  This is what I currently have:

card type t3 4

controller T3 4/0

cablelength 150

interface Serial4/0

no ip address

dsu bandwidth 44210

no cdp enable

I'm sure this is something simple, but it's outside of my standard operations.

Thanks

6 Replies 6

Jake Pratt
Beginner
Beginner

I have been reading around, and it seems that maybe I can't channelize a DS3 using the NM-1T3/E3 card?  And maybe I have to get an NM-1A-T3/E3 card?  If so, that' too bad since that card is about 20x more money.  Anyway, if anyone could confirm if I have the right card or not, I would appreciate it.  Thanks in advance.

Hello Jake,

In this case, the NM-1T3/E3 does not allow to configure the individual T1s as you did it in the 7200. On the other hand, the NM-1A-T3/E3 is an ATM card so I am not sure if that is what you are looking for.

ATM1/0 is down, line protocol is down

  Hardware is CX27470 ATM DS3

  MTU 4470 bytes, sub MTU 4470, BW 44209 Kbit/sec, DLY 190 usec,

     reliability 0/255, txload 1/255, rxload 1/255

  Encapsulation ATM, loopback not set

  Encapsulation(s): AAL5

  1023 maximum active VCs, 0 current VCCs

  VC Auto Creation Disabled.

  VC idle disconnect time: 300 seconds

  Last input never, output never, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: Per VC Queueing

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     0 packets input, 0 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

A SPA-2XCT3/DS0 could be a good option for you for it is a Channelized T3 shared port adapter but the problem here is that a 3845 does not support that module. It can be used in the following platforms:

• Cisco 7304 Router

• Cisco Catalyst 6500 Series Switches

• Cisco 7600 Series Routers

• Cisco 12000 Series Routers

• Cisco XR 12000 Series Routers

• Cisco ASR 1000 Series Router

• Cisco ASR 9000 Series Router (4 Port Only)

http://www.cisco.com/en/US/prod/collateral/modules/ps6267/product_data_sheet0900aecd8027cb3f.html

I hope it helps.

Regards.

Giuseppe Larosa
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