
C
HAPTER
2
| Initial Switch Configuration
Basic Configuration
– 95 –
D
OWNLOADING
A
C
ONFIGURATION
F
ILE
R
EFERENCED
BY
A
DHCP S
ERVER
Information passed on to the switch from a DHCP server may also include a
configuration file to be downloaded and the TFTP servers where that file
can be accessed. If the Factory Default Configuration file is used to
provision the switch at startup, in addition to requesting IP configuration
settings from the DHCP server, it will also ask for the name of a bootup
configuration file and TFTP servers where that file is stored.
If the switch receives information that allows it to download the remote
bootup file, it will save this file to a local buffer, and then restart the
provision process.
Note the following DHCP client behavior:
◆
The bootup configuration file received from a TFTP server is stored on
the switch with the original file name. If this file name already exists in
the switch, the file is overwritten.
◆
If the name of the bootup configuration file is the same as the Factory
Default Configuration file, the download procedure will be terminated,
and the switch will not send any further DHCP client requests.
◆
If the switch fails to download the bootup configuration file based on
information passed by the DHCP server, it will not send any further
DHCP client requests.
◆
If the switch does not receive a DHCP response prior to completing the
bootup process, it will continue to send a DHCP client request once a
minute. These requests will only be terminated if the switch’s address is
manually configured, but will resume if the address mode is set back to
DHCP.
To successfully transmit a bootup configuration file to the switch the DHCP
daemon (using a Linux based system for this example) must be configured
with the following information:
◆
Options 60, 66 and 67 statements can be added to the daemon’s
configuration file.
◆
By default, DHCP option 66/67 parameters are not carried in a DHCP
server reply. To ask for a DHCP reply with option 66/67 information, the
DHCP client request sent by this switch includes a “parameter request
list” asking for this information. Besides, the client request also
includes a “vendor class identifier” that allows the DHCP server to
identify the device, and select the appropriate configuration file for
download. This information is included in Option 55 and 124.
Table 3: Options 60, 66 and 67 Statements
Option
Statement
Keyword
Parameter
60
vendor-class-identifier
a string indicating the vendor class identifier
66
tftp-server-name
a string indicating the tftp server name
67
bootfile-name
a string indicating the bootfile name
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...