C-NIM-4X – 4x1G/10G SFP/SFP+ Ports – LAN/WAN Network Module With MACsec – Catalyst 8300

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C-NIM-4X Description

The C-NIM-4X is a Cisco Catalyst 8000 Series LAN/WAN network interface module for Catalyst 8300 Series edge platforms that need SFP-based LAN or WAN ports. The module has four SFP/SFP+ ports at 1G or 10G, a 10G backplane connection and no PoE, and its last two ports can run as native Layer 3 ports with WAN MACsec. The module installs only in a direct NIM slot of a Catalyst 8300 Series router, not in the C-SM-NIM-ADPT carrier, and each chassis takes one LAN/WAN module.

Quick Specs

Parameter

Specification

Product ID

C-NIM-4X

Connection media

4 x SFP/SFP+

Port speeds

1G/10G

Power over Ethernet (PoE)

Not supported

Native Layer 3 ports

Configurable on the last two ports

MACsec support

IEEE 802.1AE; WAN MACsec on the last two flex ports

Supported platforms

C8300-1N1S-6T, C8300-1N1S-4T2X, C8300-2N2S-6T, C8300-2N2S-4T2X

Installation slot

NIM slot only; C-SM-NIM-ADPT carrier not supported

LAN/WAN modules per chassis

1

Minimum Cisco IOS XE release

17.11.1 Universal Image

Application Scenarios

10G Carrier Handoff With MACsec

At a branch where the service provider hands off a 10G circuit on SFP+, one of the module’s last two ports runs as a routed Layer 3 interface on the Catalyst 8300 and can encrypt that WAN link with MACsec.

Integrated Switching In A Small Branch

A small branch office can use the four SFP/SFP+ ports as Layer 2 switch ports on the router itself, trunking voice and data VLANs to downstream switches over 1G or 10G links with one fewer device to manage.

Product Comparison

Parameter

C-NIM-4X

C-NIM-8T

C-NIM-8M

Port speeds

1G/10G

10M/100M/1G

100M/1G/2.5G

Connection media

4x SFP/SFP+

8x RJ-45

8x RJ-45

Power over Ethernet (PoE)

No

No

Yes, 802.3af, 802.3at and 802.3bt compliant

10G backplane connection

Yes

Yes

Yes

Catalyst 8000 edge platforms family support

Catalyst 8300 Series

Catalyst 8300 and 8200 Series and 8200L

Catalyst 8300 and 8200 Series and 8200L

Minimum required Cisco IOS version

17.11.1

17.11.1

17.12.2

C-NIM-4X is the SFP-based module of this group: its four SFP/SFP+ ports run at 1G or 10G, while C-NIM-8T and C-NIM-8M each carry eight RJ-45 copper ports. Sites that connect copper endpoints at 10M, 100M or 1G order C-NIM-8T, and sites that must power access points or other endpoints from the router need C-NIM-8M, the only one of the three with 802.3af, 802.3at and 802.3bt PoE and the only one at 2.5G. C-NIM-4X installs only in Catalyst 8300 Series routers, so a Catalyst 8200 or 8200L host is limited to the two RJ-45 modules. The PoE model also needs a later release, Cisco IOS XE 17.12.2 against 17.11.1 for the other two.

Ordering Checklist

  • Catalyst 8300 hosts: C8300-1N1S-6T, C8300-1N1S-4T2X, C8300-2N2S-6T and C8300-2N2S-4T2X, with the module in a direct NIM slot. Catalyst 8200 and 8200L routers and the C-SM-NIM-ADPT carrier do not support it.

Specifications

Parameter Specification Parameter Specification
Product ID C-NIM-4X Cisco ordering description Cisco 4-port 1G/10G LAN/WAN with IEEE 802.1AE MACsec
Spare PID C-NIM-4X= Form factor Network Interface Module (NIM)
Connection media 4 x SFP/SFP+ Port speeds 1G/10G
Power over Ethernet (PoE) Not supported 10G backplane connection Yes
MACsec support IEEE 802.1AE WAN MACsec ports Last two flex ports
10G SFP+ WAN MACsec peers Up to 16 per port LAN MACsec Switch-to-switch supported; switch-to-host not supported
Native Layer 3 ports Configurable on the last two ports Flex port default mode Layer 2; converted to Layer 3 with no switchport
Layer 3 features Feature parity with Catalyst 8300 Series onboard ports First-hop redundancy on VLAN interfaces HSRP, VRRP and GLBP
Layer 2 features 802.1Q trunking, 802.1D STP, PVST, VTP (client, server, transparent), voice VLAN, IGMP snooping, 802.1X with CoA, SPAN, port security Layer 2 port-channels Not supported
Maximum number of VLANs supported 1024 Maximum number of VLAN IDs 4095
QoS queues Eight per port; strict priority by default, SDWRR scheduling Spanning tree protocol instances 1 per VLAN (max 128)
Secure MAC addresses Up to 100 Jumbo frames 8 kB
Jumbo MTU on C8300-2N2S-4T2X and C8300-2N2S-6T 2048 1000BASE-X SFP negotiation Must match the peer (both auto or both non-auto)
Supported platforms C8300-1N1S-6T, C8300-1N1S-4T2X, C8300-2N2S-6T, C8300-2N2S-4T2X Catalyst 8200 and 8200L support Not supported
Installation slot NIM slot only C-SM-NIM-ADPT carrier support Not supported
LAN/WAN modules per chassis 1 NIM slots on host 1 on C8300-1N1S models; 2 on C8300-2N2S models
Minimum Cisco IOS XE release 17.11.1 Universal Image Cisco Catalyst SD-WAN manager release 20.11 or later
OIR support Yes Flex-Switch mode activation Router reload after first insertion
Dimensions (H x W x D) 1.25 x 3.50 x 7.24 in. (32 x 89 x 184 mm) Weight 6.9 oz (195 g)
Operating temperature at sea level -5°C to 55°C (23°F to 131°F) Storage temperature -40°C to 70°C (-38°F to 150°F)
Relative humidity 5 to 95% Operating humidity 5 to 85%

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Questions & Answers

  • Which NFVIS release supports C-NIM-4X in a Catalyst 8300 uCPE?

    NFVIS 4.18.1 supports C-NIM-4X in a Catalyst 8300 uCPE, per the Catalyst 8300 uCPE ordering guide. NFVIS 4.12 does not support any NIM or PIM. The uCPE data sheet lists C-NIM-4X among its supported NIMs, so order the uCPE platform and run that NFVIS release or later.
  • How many MACsec peers can a 10G port on C-NIM-4X have?

    A 10G SFP+ port on C-NIM-4X supports at most 16 WAN MACsec peers, per the Catalyst 8000 NIM configuration guide. WAN MACsec runs only on the last two flex ports of the module, so plan encrypted 10G circuits on those two ports and leave the first two for plain switching.
  • How do I convert a flex port on C-NIM-4X to Layer 3?

    Flex ports on C-NIM-4X default to Layer 2. Enter the no switchport command on one of the last two ports to make it a Layer 3 port, per the Catalyst 8000 NIM configuration guide. The module needs Cisco IOS XE 17.11.1a or later, and the first two ports stay on Layer 2 switching.
  • How many VLANs and QoS queues does C-NIM-4X support?

    C-NIM-4X supports a maximum of 1024 VLANs from 4095 VLAN IDs, and eight QoS queues per port. Queueing is strict priority by default, with SDWRR available, per the Catalyst 8000 LAN/WAN NIM data sheet, so voice and data VLANs can be separated in the egress queues on the module.
  • Does C-NIM-4X support LAN MACsec between the switch ports and the router host?

    No. Switch-to-host LAN MACsec is not supported on C-NIM-4X, while switch-to-switch LAN MACsec is, per the Catalyst 8000 NIM configuration guide. WAN MACsec stays limited to the last two flex ports, so any encryption toward downstream switches has to use the switch-to-switch mode on the other ports.
  • What does an amber SFP LED mean on C-NIM-4X?

    An amber SFP LED on C-NIM-4X means the SFP is not supported or has a fault, per the Catalyst 8000 NIM hardware installation guide. Green means link up and off means no SFP is detected. Check the inserted optic before troubleshooting the router configuration or the far end of the link.

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  • C-NIM-4X Datasheet