Description

We are trying to utilize the 10G ports on our Enhanced MX SCB 2 cards and the SFPs that we are plugging in are not being recognized. The same SFP can be plugged into one of the line cards and it is recognized. We are also not seeing the XGE ports when issuing a "show chassis hardware" command at the CLI: Routing Engine 0 REV 23 750-054758 CARZ6623 RE-S-2X00x6 Routing Engine 1 REV 17 750-054758 CALG2331 RE-S-2X00x6 CB 0 REV 09 750-062572 CAKS2725 Enhanced MX SCB 2 CB 1 REV 12 750-062572 CALD2220 Enhanced MX SCB 2 FPC 1 REV 11 750-063181 CAKW4096 MPC3E NG PQ & Flex Q CPU REV 13 711-045719 CAKS6915 RMPC PMB This is in an MX240 serial number JN1265F37AFC. Please let us know what can be done to remedy this situation. Cheers!

Symptoms

We are also not seeing the XGE ports when issuing a "show chassis hardware" command at the CLI:


Routing Engine 0 REV 23 750-054758 CARZ6623 RE-S-2X00x6

Routing Engine 1 REV 17 750-054758 CALG2331 RE-S-2X00x6

CB 0 REV 09 750-062572 CAKS2725 Enhanced MX SCB 2

CB 1 REV 12 750-062572 CALD2220 Enhanced MX SCB 2

FPC 1 REV 11 750-063181 CAKW4096 MPC3E NG PQ & Flex Q

CPU REV 13 711-045719 CAKS6915 RMPC PMB

Solution

The XGE ports are used only for a feature called node slicing, and what happened is that the MX240 does not support that feature. It works just for platforms like MX480 and MX960.

 

 

Please refer to the following links:

https://www.juniper.net/documentation/us/en/software/junos/node-slicing/topics/topic-map/junos-node-slicing-prepare-for-setup-topic-map.html#id-connecting-the-servers-and-the-router

 

https://apps.juniper.net/feature-explorer/parent-feature-info.html?pFKey=1013&pFName=Junos+node+slicing

 

Setting Up Junos Node Slicing | Junos OS | Juniper Networks

Also note, node slicing with External Server Model must be configured, with:

set chassis network-slices
or 
set chassis network-slices guest-network-functions

commit

Then the XGE ports will come up. 

Modification History

2024-01-10 : Article Created