NIM-PVDM is the Next-generation digital signal processor (DSP) module with an onboard DSP daughter card which eliminates the need to procure an additional T1/E1 NIM card in order to utilize a PVDM4 chip for IP media services. This module enables the new Catalyst 8300 cloud edge platforms and ISR 4461 to provide rich-media capabilities such as high-density voice connectivity, conferencing, transcoding, media optimization, transrating, and secure voice for Cisco Unified Communications solutions. TDM Voice Terminations are not supported by NIM-PVDM Modules.
The module support starts with IOS XE release 17.3 for both SD-WAN and non SD-WAN deployments.
![Screenshot 2020-10-30 at 10.15.17 AM.png Screenshot 2020-10-30 at 10.15.17 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87384i9D672BEE7221E45C/image-dimensions/776x457?v=v2)
It has feature parity with PVDM4 DSP modules and supports both autonomous (non SD-WAN) and controller mode ( SD-WAN).
Some of its key features include:
- SCCP conferencing
- SCCP transcoding
- LTI transcoding
- SCCP hardware media termination
- Media optimization
Note: LTI transcoding is not supported in controller mode (SDWAN) or with vManage, at all.
Table 1 lists the various NIM-PVDM options along with their slot requirements.
Table 1. NIM-PVDM Part Numbers and Slot Requirements
Part Number |
Slot |
Description |
NIM-PVDM-32
|
Network Interface Module(NIM) Slot |
32-channel density voice DSP module
|
NIM-PVDM-64
|
Network Interface Module(NIM) Slot |
64-channel density voice DSP module
|
NIM-PVDM-128
|
Network Interface Module(NIM) Slot |
128-channel density voice DSP module
|
NIM-PVDM-256
|
Network Interface Module(NIM) Slot |
256-channel density voice DSP module
|
NIM-PVDM can also be used with an SM slot with an SM-X-NIM-ADPTR card for ISR 4461 and a C-SM-NIM-ADPT card for the Catalyst 8300 edge platforms.
Table 2. NIM-PVDM Platform Availability
Platform |
NIM Slots |
SM Slots |
Max NIM-PVDM |
ISR4461
|
3
|
3
|
6
|
C8300-1N1S-4T2X
|
1
|
1
|
3
|
C8300-1N1S-6T
|
1
|
1
|
3
|
C8300-2N2S-4T2X
|
2
|
2
|
6
|
C8300-2N2S-6T
|
2
|
2
|
6
|
Codec Support and Capacity
NIM-PVDM supports all the codec that are currently supported with PVDM4 and SM-X-PVDM modules for IP media services.
Table 3. NIM-PVDM Codec Support
Codec |
Complexity |
G.711
|
Low |
Fax and Modem pass through
|
Low |
G.722
|
Medium |
G.729a
|
Medium |
G.729ab
|
Medium |
G.729
|
High |
G.729b
|
High |
iLBC
|
High |
iSAC
|
High |
Table 4. NIM-PVDM Channel Density
Module |
Low Complexity
Channel Count
|
Medium Complexity
Channel Count
|
High Complexity
Channel Count
|
NIM-PVDM-32
|
32
|
24
|
16
|
NIM-PVDM-64
|
64
|
48
|
32
|
NIM-PVDM-128
|
128
|
96
|
64
|
NIM-PVDM-256
|
256
|
192
|
128
|
Module Detection and Configuration
You can use the show platform CLI command to verify the status and slot information of a new NIM-PVDM module as shown below.
![Screenshot 2020-10-30 at 10.56.31 AM.png Screenshot 2020-10-30 at 10.56.31 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87385i3427D7CB1C0BA3E5/image-size/large?v=v2&px=999)
Configuration in Autonomous Mode
The module supports DSP resource pool sharing with other PVDM modules and hence the DSPFARM configuration has not changed.
SCCP DSPFARM Configuration (CUCM Controlled)
![Screenshot 2020-10-30 at 11.06.57 AM.png Screenshot 2020-10-30 at 11.06.57 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87386i8F335F53E488F179/image-size/large?v=v2&px=999)
LTI Transcoding Configuration (CUBE Controlled)
![Screenshot 2020-10-30 at 11.08.40 AM.png Screenshot 2020-10-30 at 11.08.40 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87387i62703B53B4577FFF/image-size/large?v=v2&px=999)
Configuration in Controller Mode
In SD-WAN mode , ths dspfarm configuration is provisioned and pushed via vManage controller.
1. Login to vManage and select the DSPFARM feature template for the applicable cEdge platform.
![Screenshot 2020-10-30 at 11.17.34 AM.png Screenshot 2020-10-30 at 11.17.34 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87389i681B706020899D07/image-size/large?v=v2&px=999)
2. Provide a suitable name & description and select the module and slot to add the NIM-PVDM module.
![Screenshot 2020-10-30 at 11.33.53 AM.png Screenshot 2020-10-30 at 11.33.53 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87390iD88A83673A4408A0/image-size/large?v=v2&px=999)
3. Select the appropriate dspfarm profile configuration options such as profile type, max sessions, codec etc and add the profile
![Screenshot 2020-10-30 at 11.36.06 AM.png Screenshot 2020-10-30 at 11.36.06 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87391i5D49FD5816AB0F99/image-size/large?v=v2&px=999)
4. Add the SCCP server configuration with CUCM IP address and identifier ID.
![Screenshot 2020-10-30 at 11.42.26 AM.png Screenshot 2020-10-30 at 11.42.26 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87392iCA6E91466DC73DFC/image-size/large?v=v2&px=999)
5. Add the CUCM Group configuration and save the profile.
![Screenshot 2020-10-30 at 11.43.59 AM.png Screenshot 2020-10-30 at 11.43.59 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87393i277DDE1ABD94C03B/image-size/large?v=v2&px=999)
Add the Feature template to the device template configuration under the unified communication section and push the changes to the cedge device.
![Screenshot 2020-10-30 at 11.46.19 AM.png Screenshot 2020-10-30 at 11.46.19 AM.png](https://community.cisco.com/t5/image/serverpage/image-id/87394i2D5F1A72D6595321/image-size/large?v=v2&px=999)