Description

Configuring 10G SFP+ module in PIC 0 as virtual-chassis port (VCP) interface is not supported.

Symptoms

root@juniper> request virtual-chassis vc-port set pic-slot 0 port 33
error: PIC slot 0 is not valid for virtual chassis port

Solution

For Example, EX4300-32F device has 32 network ports and an additional 4 ports BUILTIN on PIC 0.

Output:

root@EX4300# run show chassis hardware detail
Hardware inventory:
Item                Version     Part number    Serial number     Description
Chassis                                        TW3714130057      EX4300-32F
Routing Engine 0    REV 08      650-053003     TW3714130057      EX4300-32F
FPC 0               REV 08      650-053003     TW3714130057      EX4300-32F
  CPU                           BUILTIN        BUILTIN           FPC CPU
  PIC 0            REV 08     BUILTIN        BUILTIN           32x 1G SFP, 4x 1G/10G SFP/SFP+
       
    Xcvr 32        REV 01     740-031980      CH09KN1CX        SFP+-10G-SR
    Xcvr 33        REV 01     740-031980      CH09KN16A        SFP+-10G-SR

  PIC 1             REV 08     BUILTIN          BUILTIN          2x 40GE QSFP+

    Xcvr 0          REV 01     740-038625       MOC13496250019   QSFP+-40G-CU5M
    Xcvr 1          REV 01     740-038625       MOC14136250481   QSFP+-40G-CU5M
 
PIC 2               REV 03     611-051311       RY3714130024     2x 40GE QSFP+

According to the   Virtual Chassis Feature Guide , in an EX4300 virtual chassis, you can interconnect the EX4300 switches by using uplink ports configured as virtual dhassis ports (VCPs). The QSFP+ uplink ports, which support 40Gbps speeds and can connect switches that are up to 492 feet (150 m) apart, are configured as VCPs by default. The SFP+ uplink ports, which support 10Gbps speeds and can connect switches that are up to 6.2 miles (10 km) apart, can be configured into VCPs.

To form the virtual chassis, you can:

  1. Use PIC 1 QSFP+ ports which is configured as VCP ports by default.

  2. Install an addional supported uplink module which has 10G/40G bandwidth.

    The additional uplink module will be detected as PIC 2 in "show chassis hardware detail" as shown in below output.

    root@EX4300# run show chassis hardware detail
    Hardware inventory:
    Item                Version   Part number   Serial number    Description
    Chassis                                     TW3714130057     EX4300-32F
    Routing Engine 0    REV 08    650-053003    TW3714130057     EX4300-32F
    FPC 0               REV 08    650-053003    TW3714130057     EX4300-32F
      CPU                         BUILTIN       BUILTIN          FPC CPU
      PIC 0             REV 08    BUILTIN       BUILTIN          32x 1G SFP, 4x 1G/10G SFP/SFP+

           
        Xcvr 32         REV 01    740-031980    CH09KN1CX        SFP+-10G-SR
        Xcvr 33         REV 01    740-031980    CH09KN16A        SFP+-10G-SR
      PIC 1             REV 08    BUILTIN       BUILTIN          2x 40GE QSFP+

        Xcvr 0          REV 01    740-038625    MOC13496250019   QSFP+-40G-CU5M
        Xcvr 1          REV 01    740-038625    MOC14136250481   QSFP+-40G-CU5M
     
    PIC 2               REV 03     611-051311   RY3714130024       2x 40GE QSFP+

Refer to the  EX4300 Switch Hardware Guide  to see the supported uplink module for EX4300.

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