Cisco 7936 Administration Guide - Page 30

Understanding the Startup Process - firmware

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Understanding the Startup Process Chapter 1 Overview of the Cisco Unified IP Conference Station 7936 Understanding the Startup Process When connecting to the VoIP network, the Cisco Unified IP Conference Station goes through a standard startup process. Table 1-2 describes the startup process. Table 1-2 Cisco Unified IP Conference Station 7936 Startup Process Startup Process Step 1. Loading the Stored Station Image 2. Configuring VLAN 3. Obtaining an IP Address 4. Accessing TFTP Server Description The Cisco Unified IP Conference Station has non-volatile Flash memory in which it stores firmware images and user-defined preferences. At startup, the Cisco Unified IP Conference Station runs a bootstrap loader that loads a station image stored in Flash memory. Using this image, the station initializes its software and hardware. If the Cisco Unified IP Conference Station is connected to a Cisco Catalyst switch, the switch next informs the conference station of the voice virtual local area network (VLAN) defined on the switch. The Cisco Unified IP Conference Station needs to know its VLAN membership before it can proceed with the Dynamic Host Configuration Protocol (DHCP) request for an IP address. If the Cisco Unified IP Conference Station is using DHCP to obtain an IP address, the station queries the DHCP server to obtain one. In addition to assigning an IP address, the DHCP server also points the Cisco Unified IP Conference Station to a TFTP server. You must configure option 150 on the DHCP server for the TFTP information to be passed from the server to the client. If the Cisco Unified IP Conference Station has a statically-defined IP address, you must manually configure the IP address of an alternate TFTP server; the Cisco Unified IP Conference Station uses this alternate TFTP server to receive its information. Cisco Unified IP Conference Station 7936 Administration Guide 1-6 OL-10751-01

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Chapter 1
Overview of the Cisco Unified IP Conference Station 7936
Understanding the Startup Process
1-6
Cisco Unified IP Conference Station 7936 Administration Guide
OL-10751-01
Understanding the Startup Process
When connecting to the VoIP network, the Cisco Unified IP Conference Station
goes through a standard startup process.
Table 1-2
describes the startup process.
Table 1-2
Cisco Unified IP Conference Station 7936 Startup Process
Startup Process Step
Description
1
.
Loading the Stored Station
Image
The Cisco Unified IP Conference Station has non-volatile Flash
memory in which it stores firmware images and user-defined
preferences. At startup, the Cisco Unified IP Conference Station
runs a bootstrap loader that loads a station image stored in Flash
memory. Using this image, the station initializes its software and
hardware.
2.
Configuring VLAN
If the Cisco Unified IP Conference Station is connected to a Cisco
Catalyst switch, the switch next informs the conference station of
the voice virtual local area network (VLAN) defined on the switch.
The Cisco Unified IP Conference Station needs to know its VLAN
membership before it can proceed with the Dynamic Host
Configuration Protocol (DHCP) request for an IP address.
3
.
Obtaining an IP Address
If the Cisco Unified IP
Conference
Station is using DHCP to obtain
an IP address, the station queries the DHCP server to obtain one.
4
.
Accessing TFTP Server
In addition to assigning an IP address, the DHCP server also points
the Cisco Unified IP Conference Station to a TFTP server. You
must configure option 150 on the DHCP server for the TFTP
information to be passed from the server to the client.
If the Cisco Unified IP Conference Station has a statically-defined
IP address, you must manually configure the IP address of an
alternate TFTP server; the Cisco Unified IP Conference Station
uses this alternate TFTP server to receive its information.