User guide

Automatic Remote Configuration Download Process Managing Automatic Remote Configuration Download
page 13-10 OmniSwitch AOS Release 7 Switch Management Guide March 2015
Automatic Remote Configuration Download
Process
The automatic remote configuration process is initialized when an OmniSwitch is integrated in to the
network as a new device or when a firmware and configuration upgrade is required.
If the automatic configuration download process is not performed completely on the switch, manual
intervention is required. For details on troubleshooting techniques under such instances, see
“Troubleshooting” on page 13-20
The detailed process of Automatic Remote Configuration Download performed on the OmniSwitch is as
follows:
1 When the switch is integrated in to the network as a new device with no vcboot.cfg file, then
Automatic Remote Configuration is performed on the switch.
2 The Remote Configuration Manager on OmniSwitch configures a link aggregate automatically when a
LACP PDU is detected on the uplink ports on the switch during Automatic Remote Configuration. For
details, see the following section “LACP Auto Detection and Automatic Link Aggregate Association” on
page 13-19.
3 A DHCP client is automatically configured on VLAN 1, Management VLAN, and VLAN 127 at
switch boot up. OmniSwitch then uses different methods of DHCP client configuration until connection to
a DHCP Server is obtained. For details, see the following section “DHCP Client Auto-Configuration
Process” on page 13-16
4 The DHCP client obtains the switch IP address information from the DHCP server.
5 The DHCP client obtains the TFTP server IP address from the DHCP server using Option (66).
6 The DHCP client obtains the instruction file name and location from the DHCP server using Option
(67).
7 SSH access is automatically enabled to allow remote access in case the automatic configuration process
fails.
8 The instruction file with the .alu extension is downloaded from the TFTP server to the /flash/working
directory of the OmniSwitch.
9 If available, the configuration, script, and images files are downloaded from the FTP or SFTP servers.
The password used to connect to the FTP/SFTP servers is same as the username.
10 If available, the switch compares the firmware version available on the switch with the firmware
version in the instruction file. If the firmware versions are different, then the new firmware is downloaded
in to the /flash/working directory.
11 If available, the downloaded configuration file is saved as the vcboot.cfg file in the /flash/working
directory and the switch is rebooted completing the auto configuration process (a reboot occurs only if no
script file is downloaded).
12 If available, commands in the script file are run and the DHCP client configuration is automatically
removed.