Installing a Network Module in a QFX3100 Director Device
QFX3100 Director devices support up to two network modules on the front panel. The network modules are field-replaceable units (FRUs) but may not be hot-swapped. You must power off the system and configure the system for the new module before installing a new network module. If you are replacing an existing network module and have already edited the configuration files, you may proceed to Installing a Network Module in a Director Device.
Before you Power Off the Director Device
If you power off the QFX3100 Director device before configuring the new interfaces, the new interfaces will stay down or be removed from the control plane when the Director device is brought back up. If you are removing network module 1, you need to edit:
If you are removing network module 2, you need to edit:
Use the following procedure to edit the four ifcfg-ethn files.
- From root, use the vi editor to delete the HWADDR= line in each of the four files.
For example, to configure ifcfg-eth1 for Director device 1:
[root@qfabric ~]# ll /etc/sysconfig/network-scripts/ifcfg-eth1 -rw-r--r-- 1 root root 219 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth0 -rw-r--r-- 1 root root 153 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth1 -rw-r--r-- 1 root root 134 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth2 -rw-r--r-- 1 root root 135 Jun 17 07:15 /etc/sysconfig/network-scripts/ifcfg-eth3 -rw-r--r-- 1 root root 135 Jun 17 07:15 /etc/sysconfig/network-scripts/ifcfg-eth4 -rw-r--r-- 1 root root 135 Jun 17 07:15 /etc/sysconfig/network-scripts/ifcfg-eth5 -rw-r--r-- 1 root root 134 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth6 -rw-r--r-- 1 root root 121 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth7 -rw-r--r-- 1 root root 121 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth8 -rw-r--r-- 1 root root 121 Jun 17 07:14 /etc/sysconfig/network-scripts/ifcfg-eth9 [root@dg1 ~]# [root@dg1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth2HWADDR=00:18:7D:31:19:C2 << Delete the entire line.
DEVICE=eth2 USERCTL=no SLAVE=yes MASTER=bond0 ONBOOT=yes BOOTPROTO=static PEERDNS=no NOZEROCONF=yes MTU=9000 [root@qfabric ~]#
- Save the file and repeat the process with the remaining 3 files for the Director device.
- Locate and delete the following file:
[root@qfabric ~]# rm /etc/udev/rules.d/61-persistent-net.rules
- Power off the QFX3100. See Powering Off a QFX3100 Director Device
Installing a Network Module in a Director Device
Before you begin installing a network module in a QFX3100 Director device:
Ensure that you understand how to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.
Ensure the Director device is configured for the new network module and powered down. See Removing a Power Supply from a QFX3100 Director Device (includes video).
Ensure that you have the following parts and tools available:
ESD grounding strap
To install a network module in a QFX3100 Director device (see Figure 1):
- Attach the ESD grounding strap to your bare wrist, and connect the strap to a site ESD point.
- Taking care not to touch network module components, pins, leads, or solder connections, remove the network module from its bag.
- Ensure that the network module is properly aligned with the network module slot. The network module faceplate should be aligned so the ports are numbered 0 through 3 from left to right.
- Insert the network module into the network module slot,
and gently push the module all the way into the slot until the module
is seated flush in the network module slot.
Do not use too much force to seat the network module flush into the network module slot. If backpressure is preventing the network module from seating flush in the network module slot, remove the network module from the slot and retry the procedure, taking care to ensure that the network module is properly aligned with the network module slot.
- Tighten both screws on the network module, using your fingers.
- Power on the QFX3100 Director device. See Powering On a QFX3100 Director Device.
After system bootup, CentOS rescans the network module for MAC addresses and includes the new interfaces in the aggregated Ethernet (AE) bundle.