This article explains how ports labeled as VCP (Virtual Chassis Ports) on Juniper EX4000 switches can be configured and used as 1G uplinks, instead of being dedicated exclusively to Virtual Chassis functionality.
By default, pic 1 port 0 and pic 1 port 1 are labeled as VCP.
{master:0}
root@ex4000-48t> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis GZ1XXXXXXXXX EX4000-48T
Pseudo CB 0
Routing Engine 0 BUILTIN BUILTIN RE-EX4000-48T
FPC 0 REV 10 650-178024 GZ1XXXXXXXXX EX4000-48T
CPU BUILTIN BUILTIN FPC CPU
PIC 0 REV 10 BUILTIN BUILTIN 48x10M/100M/1G Base-T
PIC 1 REV 10 650-178024 GZ1XXXXXXXXX 4x1G/10G SFP/SFP+
{master:0}[edit]
root@ex4000-48t> show virtual-chassis vc-port
fpc0:
--------------------------------------------------------------------------
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/0 Configured Absent
1/1 Configured Absent
To use these ports as uplinks, remove their VCP configuration.
root@ex4000-48t> request virtual-chassis vc-port delete pic-slot 1 port 0
root@ex4000-48t> request virtual-chassis vc-port delete pic-slot 1 port 1