Example: Configuring EX4200 Switches for the QFX3000-M QFabric System Control Plane

This example shows you how to connect QFabric system components and configure the EX4200 switches used for the QFX3000-M QFabric system control plane network. Proper wiring of Director devices, Interconnect devices, and Node devices to the EX4200 switches, combined with a standard configuration, enables you to bring up the internal QFabric system management network and prepare your QFabric system for full operation.

Note: The EX4200 switch configuration is the same for both the copper-based and fiber-based QFX3000-M QFabric system control plane networks. Hence, a separate example for configuring EX4200 switches for the fiber-based control plane network is not provided. However, because you cannot mix and match fiber and copper in the same control plane network, you must select only one type of control plane for each QFX3000-M QFabric system you install. The primary focus of this example is a copper-based control plane network. Before you use this example to configure a fiber-based control plane network, ensure that you have installed and wired the QFabric system hardware and EX4200 switches as required for a fiber-based control plane network (see QFX3000-M QFabric System Installation Overview).

Requirements

• One QFX3000-M QFabric system containing:
  • Two QFX3100 Director devices with 1000BASE-T network modules installed
  • Two QFX3600-I Interconnect devices
  • Eight QFX3500 Node devices with a 1000BASE-T management board installed
• Two EX4200-24T switches with SFP+ uplink module installed
• Junos OS Release 13.2X52-D10 for the QFabric system components
• Junos OS Release 12.3R6.6 for the EX Series switches

• Rack, mount, and install your QFabric system hardware (Director group, Interconnect devices, and Node devices). For more information, see Installing and Connecting a QFX3100 Director Device, Installing and Connecting a QFX3600 or QFX3600-I Device, and Installing and Connecting a QFX3500 Device.
• Rack, mount, and install your EX4200 switches. For more information, see Installing and Connecting an EX4200 Switch.

Overview

The QFX3000-M QFabric system control plane network connects the Director group, Interconnect devices, and Node devices in a QFabric system across a pair of redundant EX4200 switches. By separating the management control plane from the data plane, the QFabric system can scale efficiently. The copper-based control plane network uses Gigabit Ethernet cabling and connections between components, and two 1-Gigabit Ethernet connections configured in a link aggregation group (LAG) between the redundant EX4200 switches.

Specific ports have been reserved on the EX4200 switches to connect to each of the QFabric system device types. Such design simplifies installation and facilitates timely deployment of a QFabric system. It also permits the use of a standard EX4200 switch configuration included as part of this example. The standard configuration can scale from the 8 Node devices shown in this example to a maximum of 16 Node devices.

Topology

Figure 1 shows the general port ranges where QFabric system devices must be connected to the EX4200 switches. For each EX4200 switch, connect ports 0 through 15 to Node devices, ports 16 through 19 to Interconnect devices, ports 20 through 23 to Director devices, and uplink ports 0 and 1 to the other control plane switch as an inter-switch LAG. Table 1 shows the details of the QFabric system component-to-EX4200 switch port mappings.

Figure 1: QFX3000-M QFabric System Control Plane—EX4200 Switch Port Ranges

Caution: The control plane network within a QFabric system is a critical component of the system that should not be shared with other network traffic. In order to scale efficiently, the control plane network must be reserved for the QFabric system and its components. As a result, the ports of the QFabric system control plane must never be used for any purpose other than to transport QFabric system control plane traffic, and we neither recommend nor support the connection of other devices to the QFabric system control plane network. Do not install Junos Space and AI-Scripts (AIS) on the control plane network EX4200 switches in a QFX3000-M QFabric system.

Table 1 shows the specific mappings of QFabric system control plane network ports from the QFabric system components to the EX4200 switches.

Note: The uplink ports 2 and 3 on the EX4200 switches are reserved for future use.

Next, connect the Director devices to the EX4200 switches. In general, you want to accomplish the following:

• Connect two ports from one network module in a Director device to the first EX4200 switch, and two ports from the second network module to the second EX4200 switch.
• Connect the Director devices to each other and create a Director group. You can use either straight-through RJ-45 patch cables or crossover cables, because the Director devices contain autosensing modules. Connect one port from each network module on the first Director device to one port in each network module on the second Director device.

Figure 2 shows the specific ports on the Director group that you must connect to the EX4200 switches and interconnect between the Director devices.

Figure 2: QFX3000-M QFabric System Control Plane—Director Group to EX4200 Switch Connections

In this specific example, connect ports 0 and 1 from module 0 on Director device DG0 to ports 20 and 21 on EX4200 switch EX0 (ge-0/0/20 and ge-0/0/21), and connect ports 0 and 1 from module 1 to ports 20 and 21 on the second EX4200 switch EX1 (ge-0/0/20 and ge-0/0/21).

For Director device DG1, connect ports 0 and 1 from module 0 to ports 22 and 23 on EX4200 switch EX0 (ge-0/0/22 and ge-0/0/23), and connect ports 0 and 1 from module 1 to ports 22 and 23 on the second EX4200 switch EX1 (ge-0/0/22 and ge-0/0/23).

To form the Director group, connect port 3 on module 0 on Director device DG0 to port 3 on module 0 on Director device DG1. Similarly, connect port 3 on module 1 on Director device DG0 to port 3 on module 1 on Director device DG1. Table 2 shows the port mappings for the Director group in this example.

In the software, the ports of each network module on a Director device are reversed, numbered from right to left, and incremented sequentially across modules. If you issue interface operational commands directly on the Director device, note the following port mappings as shown in Table 3:

Figure 3 shows the specific ports on the QFX3600-I Interconnect devices that you must connect to the EX4200 switches. In general, connect the first management port in an Interconnect device to the first EX4200 switch, and the second management port to the second EX4200 switch.

Figure 3: QFX3000-M QFabric System Control Plane—Interconnect Device to EX4200 Switch Connections

In this specific example, for both Interconnect devices IC0 and IC1, connect management port C0 to EX4200 switches EX0 and EX1 and management port C1 to EX4200 switches EX0 and EX1. Connect the management port C0 cables to port 16 on EX4200 switches EX0 and EX1 (ge-0/0/16), and connect the management port C1 cables to port 17 on EX4200 switches EX0 and EX1 (ge-0/0/17). Table 4 shows the port mappings for the Node devices in this example.

Figure 4, Figure 5, and Figure 6 show the specific ports on the Node devices that you must connect to the EX4200 switches when using a copper-based control plane. In general, connect the first management port from a Node device to the first EX4200 switch, and the second management port to the second EX4200 switch.

Figure 4: QFX3000-M QFabric System Control Plane—QFX3500 Node Device to EX4200 Switch Connections

Figure 5: QFX3000-M QFabric System Control Plane—QFX3600 Node Device to EX4200 Switch Connections

Figure 6: QFX3000-M QFabric System Control Plane—QFX5100 Node Device to EX4200 Switch Connections

When implementing a fiber-based control plane, refer to Figure 7, Figure 8, and Figure 9 for the proper control plane connections.

Figure 7: QFX3000-M QFabric System Fiber-Based Control Plane—QFX3500 Node Device to EX4200 Switch Connections

Figure 8: QFX3000-M QFabric System Fiber-Based Control Plane—QFX3600 Node Device to EX4200 Switch Connections

Figure 9: QFX3000-M QFabric System Fiber-Based Control Plane—QFX5100 Node Device to EX4200 Switch Connections

In this specific example, for Node device Node0, connect management port C0 (also known as me5) to EX4200 switch EX0 port 0 (ge-0/0/0), and connect management port C1 (also known as me6) to the second EX4200 switch EX1 port 0 (ge-0/0/0).

For the remaining seven Node devices, connect management port C0 to the ge-0/0/X port on EX4200 switch EX0 that matches the Node device number. Similarly, connect management port C1 to the port on the second EX4200 switch EX1 that matches the Node device number. For example, you would connect Node device Node5 to port 5 (ge-0/0/5). Table 5 shows the full set of port mappings for the Node devices in this example.

Figure 10 shows the specific uplink ports on the first EX4200 switch that you must connect to the second EX4200 switch. These connections create a link aggregation group (LAG) that provides redundancy and resiliency for the EX4200 switch portion of the control plane. In general, connect each 1-Gigabit Ethernet uplink port from the first EX4200 switch to the corresponding 1-Gigabit Ethernet uplink port on the second EX4200 switch.

Figure 10: QFX3000-M QFabric System Control Plane—Inter-EX4200 Switch LAG Connections

In this specific example, for EX4200 switch EX0, connect uplink port 0 (ge-0/1/0) to EX4200 switch EX1 uplink port 0 (ge-0/1/0). Then connect uplink port 1 (ge-0/1/1) on EX4200 switch EX0 to uplink port 1 (ge-0/1/1) on EX4200 switch EX1.

Table 6 shows the port mappings for the EX4200 switch LAG connections in this example.

Configuration

CLI Quick Configuration

To configure the QFX3000-M QFabric system control plane EX4200 switches quickly, copy the following commands, paste them in a text file, remove any line breaks, change any details necessary to match your network, and then copy and paste the commands into the EX4200 switch CLI at the [edit] hierarchy level.

Step-by-Step Procedure

1. Create a configuration group called qfabric to define global QFabric system control plane properties. Set up the number of aggregated Ethernet devices, configure alarm and LCD management, activate loop prevention and storm control, specify a global VLAN (VLAN 100) and 802.1q tunneling, define options for aggregated Ethernet interfaces, and apply the qfabric group settings to the configuration.
   [edit]user@switch# set groups qfabric chassis aggregated-devices ethernet device-count 3user@switch# set groups qfabric chassis alarm management-ethernet link-down ignoreuser@switch# set groups qfabric chassis lcd-menu fpc 0 menu-item maintenance-menu disableuser@switch# set groups qfabric protocols rstp interface ae2.0 mode point-to-pointuser@switch# set groups qfabric protocols rstp interface all edgeuser@switch# set groups qfabric protocols rstp interface all no-root-portuser@switch# set groups qfabric protocols rstp bpdu-block-on-edgeuser@switch# set groups qfabric protocols lldp interface alluser@switch# set groups qfabric ethernet-switching-options storm-control interface all bandwidth 10000user@switch# set groups qfabric vlans qfabric vlan-id 100user@switch# set groups qfabric vlans qfabric dot1q-tunnelinguser@switch# set groups qfabric-int interfaces <*> mtu 9216user@switch# set groups qfabric-int interfaces <*> unit 0 family ethernet-switching port-mode accessuser@switch# set groups qfabric-int interfaces <*> unit 0 family ethernet-switching vlan members qfabricuser@switch# set groups qfabric-ae interfaces <*> aggregated-ether-options link-speed 1guser@switch# set groups qfabric-ae interfaces <*> aggregated-ether-options lacp activeuser@switch# set apply-groups qfabric
2. Configure interfaces for the QFabric system control plane network. Enable the EX4200 switch SFP+ uplink module for 1-Gigabit Ethernet operation. Set the interface ranges where Node devices (0 through 15), Interconnect devices (16 and 17), and Director devices (20 through 23) connect to the control plane network through the EX4200 switches. Configure the inter-EX4200 switch LAG connections for the ae2 interface and apply the qfabric-int and qfabric-ae configuration groups to the aggregated Ethernet interfaces (ae0 and ae1) for the Director devices.
   [edit]user@switch# set chassis fpc 0 pic 1 sfpplus pic-mode 1guser@switch# set interfaces interface-range Node_Device_Interfaces member "ge-0/0/[0-15]"user@switch# set interfaces interface-range Node_Device_Interfaces description "QFabric Node Device"user@switch# set interfaces interface-range Node_Device_Interfaces mtu 9216user@switch# set interfaces interface-range Node_Device_Interfaces unit 0 family ethernet-switching port-mode accessuser@switch# set interfaces interface-range Node_Device_Interfaces unit 0 family ethernet-switching vlan members qfabricuser@switch# set interfaces interface-range Interconnect_Device_Interfaces member "ge-0/0/[16-17]"user@switch# set interfaces interface-range Interconnect_Device_Interfaces description "QFabric Interconnect Device"user@switch# set interfaces interface-range Interconnect_Device_Interfaces mtu 9216user@switch# set interfaces interface-range Interconnect_Device_Interfaces unit 0 family ethernet-switching port-mode accessuser@switch# set interfaces interface-range Interconnect_Device_Interfaces unit 0 family ethernet-switching vlan members qfabricuser@switch# set interfaces interface-range Director_Device_DG0_LAG_Interfaces member "ge-0/0/[20-21]"user@switch# set interfaces interface-range Director_Device_DG0_LAG_Interfaces description "QFabric Director Device - DG0"user@switch# set interfaces interface-range Director_Device_DG0_LAG_Interfaces ether-options speed 1guser@switch# set interfaces interface-range Director_Device_DG0_LAG_Interfaces ether-options 802.3ad ae0user@switch# set interfaces interface-range Director_Device_DG1_LAG_Interfaces member "ge-0/0/[22-23]"user@switch# set interfaces interface-range Director_Device_DG1_LAG_Interfaces description "QFabric Director Device - DG1"user@switch# set interfaces interface-range Director_Device_DG1_LAG_Interfaces ether-options speed 1guser@switch# set interfaces interface-range Director_Device_DG1_LAG_Interfaces ether-options 802.3ad ae1user@switch# set interfaces interface-range Control_Plane_Inter_LAG_Interfaces member "ge-0/1/[0-1]"user@switch# set interfaces interface-range Control_Plane_Inter_LAG_Interfaces description "QFabric Control Plane (Inter - Switch LAG)"user@switch# set interfaces interface-range Control_Plane_Inter_LAG_Interfaces ether-options 802.3ad ae2user@switch# set interfaces ae0 apply-groups qfabric-intuser@switch# set interfaces ae0 apply-groups qfabric-aeuser@switch# set interfaces ae0 description "QFabric Director Device - DG0"user@switch# set interfaces ae1 apply-groups qfabric-intuser@switch# set interfaces ae1 apply-groups qfabric-aeuser@switch# set interfaces ae1 description "QFabric Director Device - DG1"user@switch# set interfaces ae2 description "QFabric Control Plane (Inter-Switch LAG)"user@switch# set interfaces ae2 mtu 9216user@switch# set interfaces ae2 aggregated-ether-options link-speed 1guser@switch# set interfaces ae2 aggregated-ether-options lacp activeuser@switch# set interfaces ae2 unit 0 family ethernet-switching vlan members qfabric
3. Enable class of service (CoS) for the QFabric system control plane network. Establish forwarding classes, priorities, scheduler maps, classifiers, and queues for three types of traffic: control traffic, interdevice traffic, and best-effort traffic.
   [edit]user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_3 loss-priority low code-points 110user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_3 loss-priority low code-points 111user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_2 loss-priority low code-points 100user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_2 loss-priority high code-points 101user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_0 loss-priority low code-points 010user@switch# set class-of-service classifiers ieee-802.1 onep_qfabric_classifier forwarding-class class_0 loss-priority high code-points 001user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_3 loss-priority low code-points 110user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_3 loss-priority low code-points 111user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_2 loss-priority low code-points 100user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_2 loss-priority high code-points 101user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_0 loss-priority low code-points 010user@switch# set class-of-service classifiers inet-precedence IP_qfabric_classifier forwarding-class class_0 loss-priority high code-points 001user@switch# set class-of-service forwarding-classes class class_3 queue-num 7user@switch# set class-of-service forwarding-classes class class_2 queue-num 2user@switch# set class-of-service forwarding-classes class class_0 queue-num 0user@switch# set class-of-service interfaces ge-*/0/* scheduler-map cpe_network_smapuser@switch# set class-of-service interfaces ge-*/0/* unit 0 classifiers ieee-802.1 onep_qfabric_classifieruser@switch# set class-of-service interfaces ge-*/0/* unit 0 classifiers inet-precedence IP_qfabric_classifieruser@switch# set class-of-service interfaces ae* scheduler-map cpe_network_smapuser@switch# set class-of-service interfaces ae* unit 0 classifiers ieee-802.1 onep_qfabric_classifieruser@switch# set class-of-service interfaces ae* unit 0 classifiers inet-precedence IP_qfabric_classifieruser@switch# set class-of-service scheduler-maps cpe_network_smap forwarding-class class_3 scheduler scheduler_3user@switch# set class-of-service scheduler-maps cpe_network_smap forwarding-class class_2 scheduler scheduler_2user@switch# set class-of-service scheduler-maps cpe_network_smap forwarding-class class_0 scheduler scheduler_0user@switch# set class-of-service schedulers scheduler_3 buffer-size percent 30user@switch# set class-of-service schedulers scheduler_3 priority strict-highuser@switch# set class-of-service schedulers scheduler_2 transmit-rate percent 75user@switch# set class-of-service schedulers scheduler_2 buffer-size percent 30user@switch# set class-of-service schedulers scheduler_2 priority lowuser@switch# set class-of-service schedulers scheduler_0 transmit-rate percent 25user@switch# set class-of-service schedulers scheduler_0 buffer-size percent 40user@switch# set class-of-service schedulers scheduler_0 priority low
4. Configure settings to enable the EX4200 switches to interoperate with your management network. Set a hostname, system services (such as Telnet), system log thresholds, management interface parameters, default routes, and any additional preferences you might have.
   [edit]user@switch# set system host-name qfabric-control-planeuser@switch# set system services sshuser@switch# set system services telnetuser@switch# set system services web-management httpuser@switch# set system syslog user * any emergencyuser@switch# set system syslog file messages any noticeuser@switch# set system syslog file messages authorization infouser@switch# set system syslog file messages archive world-readableuser@switch# set system syslog file messages explicit-priorityuser@switch# set system syslog file interactive-commands interactive-commands anyuser@switch# set system syslog file secure authorization infouser@switch# set system syslog file default-log-messages any anyuser@switch# set system syslog file default-log-messages structured-datauser@switch# set system syslog file console any erroruser@switch# set system syslog time-format milliseconduser@switch# set interfaces me0 unit 0 family inet address 192.168.157.26/24user@switch# set routing-options static route 0.0.0.0/0 next-hop 192.168.157.1

Results

To view the configuration, issue the show command in configuration mode or the show configuration command in operational mode. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.

The following configuration is the standard configuration that applies universally to both EX4200 switches in your QFabric system control plane network.

The following portion of the configuration applies to the specific requirements of your management network. Modify this section to meet the needs of your network.

To verify the syntax of your configuration prior to committing it, enter commit check from configuration mode. If you are done configuring the device, enter commit from configuration mode.

Verification

Confirm that the EX4200 switch configuration is working properly.

• Verifying the QFX3000-M QFabric System Control Plane—EX4200 Switch EX0
• Verifying the QFX3000-M QFabric System Control Plane—EX4200 Switch EX1

Verifying the QFX3000-M QFabric System Control Plane—EX4200 Switch EX0

Purpose

Verify that the control plane is properly connected on your first EX4200 switch.

Action

Connect to the Junos OS CLI of EX4200 switch EX0, either from your management network or from the console port of the switch. In operational mode, enter the show interfaces terse command.

Sample Output

Interface               Admin Link   Proto    Local                 Remote
ge-0/0/0                up    up  
ge-0/0/0.0              up    up     eth-switch
ge-0/0/1                up    up  
ge-0/0/1.0              up    up     eth-switch
ge-0/0/2                up    up  
ge-0/0/2.0              up    up     eth-switch
ge-0/0/3                up    up  
ge-0/0/3.0              up    up     eth-switch
ge-0/0/4                up    up  
ge-0/0/4.0              up    up     eth-switch
ge-0/0/5                up    up  
ge-0/0/5.0              up    up     eth-switch
ge-0/0/6                up    up  
ge-0/0/6.0              up    up     eth-switch
ge-0/0/7                up    up  
ge-0/0/7.0              up    up     eth-switch
ge-0/0/8                up    down  
ge-0/0/8.0              up    down   eth-switch
ge-0/0/9                up    down  
ge-0/0/9.0              up    down   eth-switch
ge-0/0/10               up    down  
ge-0/0/10.0             up    down   eth-switch
ge-0/0/11               up    down  
ge-0/0/11.0             up    down   eth-switch
ge-0/0/12               up    down  
ge-0/0/12.0             up    down   eth-switch
ge-0/0/13               up    down  
ge-0/0/13.0             up    down   eth-switch
ge-0/0/14               up    down  
ge-0/0/14.0             up    down   eth-switch
ge-0/0/15               up    down  
ge-0/0/15.0             up    down   eth-switch
ge-0/0/16               up    up  
ge-0/0/16.0             up    up     eth-switch
ge-0/0/17               up    up  
ge-0/0/17.0             up    up     eth-switch
ge-0/0/18               up    down  
ge-0/0/18.0             up    down   eth-switch
ge-0/0/19               up    down  
ge-0/0/19.0             up    down   eth-switch
ge-0/0/20               up    up  
ge-0/0/20.0             up    up     aenet    --> ae0.0
ge-0/0/21               up    up  
ge-0/0/21.0             up    up     aenet    --> ae0.0
ge-0/0/22               up    up  
ge-0/0/22.0             up    up     aenet    --> ae1.0
ge-0/0/23               up    up  
ge-0/0/23.0             up    up     aenet    --> ae1.0
ge-0/1/0                up    up  
ge-0/1/0.0              up    up     aenet    --> ae2.0
ge-0/1/1                up    up  
ge-0/1/1.0              up    up     aenet    --> ae2.0
vcp-0                   up    down
vcp-0.32768             up    down
vcp-1                   up    down
vcp-1.32768             up    down
ae0                     up    up  
ae0.0                   up    up     eth-switch
ae1                     up    up  
ae1.0                   up    up     eth-switch
ae2                     up    up  
ae2.0                   up    up     eth-switch
bme0                    up    up  
bme0.32768              up    up     inet     128.0.0.1/2     
                                              128.0.0.16/2    
                                              128.0.0.32/2    
                                     tnp      0x10            
dsc                     up    up  
gre                     up    up  
ipip                    up    up  
lo0                     up    up  
lo0.0                   up    up     inet     127.0.0.1           --> 0/0
lsi                     up    up        
me0                     up    up  
me0.0                   up    up     inet     192.168.157.26/24
mtun                    up    up  
pimd                    up    up  
pime                    up    up  
tap                     up    up  
vlan                    up    up  
vme                     up    down

Meaning

In the output of the show interfaces terse command, if all interfaces that connect to the QFabric system devices are listed as up (such as ge-0/0/16 and ge-0/0/17 for the Interconnect devices; ge-0/0/20 through ge-0/0/23 for the Director devices; ge-0/0/0 through ge-0/0/7 for the Node devices; and ge-0/1/0 and ge-0/1/1 for the inter-EX4200 switch connections), the control plane is properly connected.

Verifying the QFX3000-M QFabric System Control Plane—EX4200 Switch EX1

Purpose

Verify that the control plane is properly connected on your second EX4200 switch.

Action

Connect to the Junos OS CLI of EX4200 switch EX1, either from your management network or from the console port of the switch. In operational mode, enter the show interfaces terse command.

Sample Output

Interface               Admin Link   Proto    Local                 Remote
ge-0/0/0                up    up  
ge-0/0/0.0              up    up     eth-switch
ge-0/0/1                up    up  
ge-0/0/1.0              up    up     eth-switch
ge-0/0/2                up    up  
ge-0/0/2.0              up    up     eth-switch
ge-0/0/3                up    up  
ge-0/0/3.0              up    up     eth-switch
ge-0/0/4                up    up  
ge-0/0/4.0              up    up     eth-switch
ge-0/0/5                up    up  
ge-0/0/5.0              up    up     eth-switch
ge-0/0/6                up    up  
ge-0/0/6.0              up    up     eth-switch
ge-0/0/7                up    up  
ge-0/0/7.0              up    up     eth-switch
ge-0/0/8                up    down  
ge-0/0/8.0              up    down   eth-switch
ge-0/0/9                up    down  
ge-0/0/9.0              up    down   eth-switch
ge-0/0/10               up    down  
ge-0/0/10.0             up    down   eth-switch
ge-0/0/11               up    down  
ge-0/0/11.0             up    down   eth-switch
ge-0/0/12               up    down  
ge-0/0/12.0             up    down   eth-switch
ge-0/0/13               up    down  
ge-0/0/13.0             up    down   eth-switch
ge-0/0/14               up    down  
ge-0/0/14.0             up    down   eth-switch
ge-0/0/15               up    down  
ge-0/0/15.0             up    down   eth-switch
ge-0/0/16               up    up  
ge-0/0/16.0             up    up     eth-switch
ge-0/0/17               up    up  
ge-0/0/17.0             up    up     eth-switch
ge-0/0/18               up    down  
ge-0/0/18.0             up    down   eth-switch
ge-0/0/19               up    down  
ge-0/0/19.0             up    down   eth-switch
ge-0/0/20               up    up  
ge-0/0/20.0             up    up     aenet    --> ae0.0
ge-0/0/21               up    up  
ge-0/0/21.0             up    up     aenet    --> ae0.0
ge-0/0/22               up    up  
ge-0/0/22.0             up    up     aenet    --> ae1.0
ge-0/0/23               up    up  
ge-0/0/23.0             up    up     aenet    --> ae1.0
ge-0/1/0                up    up  
ge-0/1/0.0              up    up     aenet    --> ae2.0
ge-0/1/1                up    up  
ge-0/1/1.0              up    up     aenet    --> ae2.0
vcp-0                   up    down
vcp-0.32768             up    down
vcp-1                   up    down
vcp-1.32768             up    down
ae0                     up    down
ae0.0                   up    down   eth-switch
ae1                     up    down
ae1.0                   up    down   eth-switch
ae2                     up    up  
ae2.0                   up    up     eth-switch
bme0                    up    up  
bme0.32768              up    up     inet     128.0.0.1/2     
                                              128.0.0.16/2    
                                              128.0.0.32/2    
                                     tnp      0x10            
dsc                     up    up  
gre                     up    up  
ipip                    up    up  
lo0                     up    up  
lo0.0                   up    up     inet     127.0.0.1           --> 0/0
lsi                     up    up        
me0                     up    up  
me0.0                   up    up     inet     192.168.157.26/24
mtun                    up    up  
pimd                    up    up  
pime                    up    up  
tap                     up    up  
vlan                    up    up  
vme                     up    down

Meaning

In the output of the show interfaces terse command, if all interfaces that connect to the QFabric system devices are listed as up (such as ge-0/0/16 and ge-0/0/17 for the Interconnect devices; ge-0/0/20 through ge-0/0/23 for the Director devices; ge-0/0/0 through ge-0/0/7 for the Node devices; and ge-0/1/0 and ge-0/1/1 for the inter-EX4200 switch connections), the control plane is properly connected.