C-NIM-X port numbering on C8300-1N1S-6T

[Spawn]

Hi guys, does anybody know what would be the slot bay numbers for NIM1? the onboard ones are all 0/0/X

C-NIM-X will take its pace in NIM1 slot.

NIM1 would it be 0/1/X or 1/0/X or 1/1/X? Cisco has confusing way of presenting the details.

1	LED	2	RJ-45 Gigabit Ethernet port (1G 0/0/0)
3	RJ-45 Gigabit Ethernet port (1G 0/0/2)	4	SFP/1 Gigabit Ethernet port (1G 0/0/4)
5	NIM Slot1	6	SM Slot1
7	RFID (Optional)	8	USB Type C (3.0) (USB 1)
9	USB Type A (3.0) (USB 0)	10	RJ-45 Console
11	Micro-USB Console	12	RJ-45 Gigabit Ethernet port (1G 0/0/1)
13	RJ-45 Gigabit Ethernet port (1G 0/0/3)	14	SFP/1 Gigabit Ethernet port (1G 0/0/5)
15	M.2 USB/NVMe storage	16	Device Label Tray

[Enes Simnica · Accepted solution]

hello @Spawn and great question man. SHORT ANSWER : The NIM1 slot is numbered 0/1/x

WHY , well:

• 0= Chassis number (always 0 on single-chassis routers)
• 1= Slot number (NIM1)
• x= Port number on the NIM module

So if you install a module in NIM1, interfaces will be numbered like: 0/1/0, 0/1/1, etc. etc. Onboard ports stay as: 0/0/x

and of course, If u had a second NIM slot, it would be: 0/2/x....

if u need some links or docs, let me know, and hope it helps...

-Enes

[Enes Simnica]

also @Spawn my apologies man, I just noticed u’re a CCIE. Didn’t mean to dive into all the details, I know exactly what kind of beast you are!  Next time I’ll just drop the link and step back… LOL

HUGE RESPECT!

[M02@rt37]

Hello @Spawn 

According to the Catalyst 8300 Hardware Installation Guide, slot 0 is reserved for integrated ports and NIMs.

So, "user-installed" NIM occupy slot 1, meanning that any interfaces on a module in the NIM1 location appear as 0/1/X.

See here, "slot numbering" part:

https://www.cisco.com/c/en/us/td/docs/routers/cloud_edge/c8300/hardware_installation/b-catalyst-8300-series-edge-platforms-hig/m-overview.html#con_1057273

[Spawn · Accepted solution]

so finally we have the answer, thank you all for taking the effort and looking into the details

------------------ show inventory ------------------

NAME: "Chassis", DESCR: "Cisco C8300-1N1S-6T Chassis"
PID: C8300-1N1S-6T     , VID: V02  , SN:

NAME: "NIM subslot 0/1", DESCR: "C-NIM-4X"
PID: C-NIM-4X          , VID: V01  , SN:

NAME: "subslot 0/1 transceiver 2", DESCR: "SFP+ 10GBASE-SR"
PID: SFP-10G-SR          , VID: V03  , SN:      

NAME: "subslot 0/1 transceiver 3", DESCR: "SFP+ 10GBASE-SR"
PID: SFP-10G-SR          , VID: V03  , SN:      

NAME: "NIM subslot 0/0", DESCR: "Front Panel 6 ports Gigabitethernet Module"
PID: 4x1G-2xSFP        , VID: V01  , SN:            

NAME: "subslot 0/0 transceiver 4", DESCR: "GE LX"
PID: GLC-LH-SMD          , VID: V01  , SN:      

NAME: "module R0", DESCR: "Cisco C8300-1N1S-6T Route Processor"
PID: C8300-1N1S-6T     , VID: V02  , SN:

NAME: "module F0", DESCR: "Cisco C8300-1N1S-6T Forwarding Processor"
PID: C8300-1N1S-6T     , VID:      , SN:            

interface TenGigabitEthernet0/1/0
shutdown
!
interface TenGigabitEthernet0/1/1
shutdown
!
interface TenGigabitEthernet0/1/2
switchport
shutdown
!
interface TenGigabitEthernet0/1/3
switchport
shutdown
!