The EX4100 / EX4100-F and EX4400 switches have default configured VCP, as result, users may find that the physical interface is not listed in the show interface command output.

Example:

root@switch> show interfaces ge-0/1/0

error: device ge-0/1/0 not found

The EX4100 / EX4100-F / EX4100-48MP switches have dedicated Virtual Chassis ports (VCPs) that you can use to interconnect member switches of a Virtual Chassis. You can operate the interconnected switches as virtual chassis using request virtual-chassis mode hgoe, adding to the above you can also use some ports as network ports meaning it is possible to split PIC 1 using 2 ports as VC and 2 ports as network ports.

The EX4100 / EX4100-F / EX4100-48MP switches to convert VCP to network ports, use the following command:

root@d15-31> show virtual-chassis vc-port
fpc0:
--------------------------------------------------------------------------
Interface   Type              Trunk  Status       Speed        Neighbor
or                             ID                 (mbps)       ID  Interface
PIC / Port
1/3         Configured               Absent
1/2         Configured               Absent
1/1         Configured               Absent
1/0         Configured               Absent

root@switch> request virtual-chassis vc-port delete pic-slot 1 port "number"
Port deletion initiated, use cmd show virtual-chassis vc-port to verify
 
{master:0}
root@switch> show virtual-chassis vc-port
fpc0:
--------------------------------------------------------------------------
Interface   Type              Trunk  Status       Speed        Neighbor
or                             ID                 (mbps)       ID  Interface
PIC / Port
1/1         Configured               Absent
1/0         Configured               Absent

After entering the above command, the device needs to be rebooted to take effect, use the command:

root@switch> request system reboot

Once the reboot is completed and the unit is fully operational, in this case 2 ports from PIC 1 are not VCP anymore, they are now “network ports”.

Important: HGoE allows you to flexibly mix VCPs and network access ports on the same Physical Interface Card (PIC)

You can create a Virtual Chassis setup in one of two modes: HiGig or HiGig over Ethernet (HGoE).

To enable HGoE mode, use the following command:

content_copy zoom_out_map
request virtual-chassis mode hgoe <reboot>

To disable HGoE mode and use HiGig mode, use the following command.

request virtual-chassis mode hgoe disable <reboot>

After the reboot the virtual chassis will be established:

root@vc-mode> show virtual-chassis vc-port
fpc0:
--------------------------------------------------------------------------
Interface   Type              Trunk  Status       Speed        Neighbor
or                             ID                 (mbps)       ID  Interface
PIC / Port
1/0         Configured          5    Up           25000        1   vcp-255/1/0
1/1         Configured          5    Up           25000        1   vcp-255/1/1
 
fpc1:
--------------------------------------------------------------------------
Interface   Type              Trunk  Status       Speed        Neighbor
or                             ID                 (mbps)       ID  Interface
PIC / Port
1/0         Configured          5    Up           25000        0   vcp-255/1/0
1/1         Configured          5    Up           25000        0   vcp-255/1/1
1/3         Configured               Absent
1/2         Configured               Absent
 
{master:0}
root@vc-mode> show virtual-chassis
 
Virtual Chassis ID: 4de8.cc07.b4e8
Virtual Chassis Mode: Enabled
                                                Mstr           Mixed Route Neighbor List
Member ID  Status   Serial No    Model          prio  Role      Mode  Mode ID  Interface
0 (FPC 0)  Prsnt    EY4623AN0773 ex4100-48mp    128   Master*      N  VC   1  vcp-255/1/0
                                                                           1  vcp-255/1/1
1 (FPC 1)  Prsnt    EY4623AN0036 ex4100-48mp    128   Backup       N  VC   0  vcp-255/1/0
                                                                           0  vcp-255/1/1

05/03/2023

Understanding HiGig and HGoE Modes in a Virtual Chassis:

https://www.juniper.net/documentation/us/en/software/junos/virtual-chassis/topics/concept/virtual-chassis-higig-and-hgoe.html#xd_b34235ef5cbae677-50581e8b-18fc47a5fa7--7d90__section_vpl_4cb_1fc