1mft-T1/E1

[fadhel shams]

Hi,

I’m new to the collaboration field and they assigned to me a task to migrate old voice gateway to a new isr 4431 router.

so they purchased 2 modules NIM-1MFT-T1/E. I’m confused since this is 1 port module, can the following configuration work with the new router ? 

controller E1 0/0/0
 shutdown
 framing NO-CRC4 
 pri-group timeslots 1-31
!
controller E1 0/1/0
 framing NO-CRC4 
 pri-group timeslots 1-30
!
controller E1 0/1/1
 framing NO-CRC4 
 pri-group timeslots 1-30
!
controller E1 0/1/2
 framing NO-CRC4 
 pri-group timeslots 1-30
!
controller E1 0/1/3
 framing NO-CRC4 
 pri-group timeslots 1-31 service mgcp
!
controller E1 0/2/0
 framing NO-CRC4 
 pri-group timeslots 1-31
!
controller E1 0/2/1
 framing NO-CRC4 
 pri-group timeslots 1-31
!
controller E1 0/2/2
 framing NO-CRC4 
 pri-group timeslots 1-31
!
controller E1 0/2/3
 framing NO-CRC4 
 pri-group timeslots 1-31
no cdp run
!
! 

[Jaime Valencia]

Only for two ports that you now have, the other router had a total of 9, might want to ask a senior engineer what are those 2 ports going to be used for if they're supposed to replace ports from the old router. 

[TechLvr]

Each NIM-1MFT-T1/E1 module can only accommodate 1 trunk. Since you have 2 of them, then you can move two E1 trunks to your ISR 4331. 

As Jamie pointed out, your configs show a total of 9 ports, one of them which is in a state of shutdown. If all the remaining 8 ports are connected to E1 trunks, and need to be moved to your ISR 4331, then you would need 2 NIM-4MFT-T1/E1 modules. 

Keep in mind that each NIM module also needs a PVDM4 module plugged into it directly. You need one DSP channel for each active E1 channel. For example, a NIM-4MFT-T1/E1, with four 31-channel E1 trunks, needs a PVDM4-128 module. NIM modules cannot use DSP resources from a PVDM4 module that’s plugged into the ISR 4000 motherboard. But don’t worry, when you plug a PVDM4 module into a NIM module, you can still use the excessive DSP resources for transcoding, conferencing etc. 

[fadhel shams]

First of all thank you for your reply,

So how can i know whether all the 9 ports are in use or not ? 

[TechLvr]

Log into your existing router and run the “show isdn status” command. 

The output of this command will show all 9 ports.  
For each port, Layer1: Active, means a trunk is plugged into that port, and Layer 2: State=Multiple_Frame_Established, means that the trunk is fully operational. See the sample output below for 1 port. 

Router1#show isdn status
G*bal ISDN Switchtype = primary-ni
ISDN Serial0/2/0:23 interface
dsl 0, interface ISDN Switchtype = primary-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI= 0, Ces= 1, SAPI = 0, State=MULTIPLE-FRAME-ESTABLISHED
Layer 3 Status: 
0 Active Layer 3 Call (s)
Active del 0 CCBs = 0 
The Free Channel Mask: 0x80000007
Number of L2 Discards - O, L2 Seggion ID = 2
Total Allocated ISDN CCBs = 0
Router1#

[Nithin Eluvathingal]

As @TechLvr  mentioned, use show isdn status command to check if all your lines are UP or not. The lines which are UP will show MULTIPLE-FRAME-ESTABLISHED.

Migrate the lines which are active. and make sure that both these 2 modules of NIM-1MFT-T1/E has PVDM installed on the line card and not on the mother board. If not your wont be able to configure the timeslots.

Another thing which in noticed, you have pri channels 1-30 and 1-31 configured. it must be 1-31 if you have 30 channel subscribed with ISP.

Few changes are there on the ISR4k isdn clocking compared to isr2k. the below mentioned  document explain the changes.

https://www.cisco.com/c/en/us/td/docs/routers/access/4400/feature/guide/isr4400netclock.html

Here is a sample configuration in our region.

network-clock synchronization automatic

controller E1 0/1/0
framing no-crc4
clock source line primary
pri-group timeslots 1-31

network-clock input-source 1 controller E1 0/1/0

2.12.0.0