Administrator Guide

Configuring the Unused PE Uplink Ports as Front-End
Ports
In a stacked PE setup, you can configure an unused uplink port as front-end (access) ports.
If there are unused uplink ports in the stacked PE setup, it can be converted as access port. This configuration is done using the
following command:
stack-unit unit-id access—ports port-range
CAUTION:
You should use caution while configuring an uplink port as access port. The conversion of the uplink port that is
connected to CB causes disconnection of PE. If disconnected, you have to convert the access port back to
uplink port using no stack-unit unit-number access-ports port-range command and reload the PE.
When the uplink port is converted to access port, Dell EMC Networking OS creates a logical peTenGigE interface based on the
10/100/1000BASE-T Ports in the PE.
There is a maximum of 4 uplink ports in a PE. The C1048P and N20xx have two standard uplink ports in the front panel, while
the N30xx have two standard uplink ports in the front panel and one expansion slot for plug-in module on the back panel. The
expansion slot supports 10GBASE-T or SFP+ module and each module has two ports.
Figure 115. N30xx Back Panel
1. Plug-in module with Dual SFP+ Ports
You must enter the port-range as 1 and 2 for front-end uplink ports and 3 and 4 for uplink ports of the plug-in module in the
back panel.
NOTE: In PE, the ports in the plug-in module are numbered as 1 and 2.
For example, on a C1048P PE, the uplink ports are numbered as 1 and 2 on the front panel. But, the logical peTenGigE
interface is numbered as 1/0/49 and 1/0/50 for SFP+ port 1 and 2 respectively. Consider that the SFP+ port 1 of C1048P is
connected to C9010 and the SFP+ port 2 is unused. The unused SFP+ port 2 can be configured as access port using the
stack-unit unit-id access—ports port-range command, and a logical peTenGigE interface is created. The logical
port is numbered based on the number of the ports in the PE. On C1048P, the 10/100/1000BASE-T ports on the front panel are
numbered from 1 to 48 and hence the number of peTenGigE interface is created as 1/0/50.
The following table lists the port numbers of peTenGigE interface that are created when the uplink port is converted to access
port:
738
Port Extender (PE) Stacking