Cisco Catalyst 3750-X User Manual

3-10
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 3 Assigning the Switch IP Address and Default Gateway
Assigning Switch Information
Note The switch broadcasts TFTP server requests if the TFTP server is not obtained from the DHCP replies,
if all attempts to read the configuration file through unicast transmissions fail, or if the TFTP server
name cannot be resolved to an IP address.
Example Configuration
Figure 3-3 shows a sample network for retrieving IP information by using DHCP-based autoconfiguration.
Figure 3-3 DHCP-Based Autoconfiguration Network Example
Table 3-2 shows the configuration of the reserved leases on the DHCP server.
DNS Server Configuration
The DNS server maps the TFTP server name tf
tpserver to IP address 10.0.0.3.
Switch 1
00e0.9f1e.2001
Cisco router
111394
Switch 2
00e0.9f1e.2002
Switch 3
00e0.9f1e.2003
DHCP server DNS server TFTP server
(tftpserver)
10.0.0.1
10.0.0.10
10.0.0.2 10.0.0.3
Switch 4
00e0.9f1e.2004
Ta ble 3-2 DHCP Server Configuration
Switch A Switch B Switch C Switch D
Binding key (hardware address) 00e0.9f1e.2001 00e0.9f1e.2002 00e0.9f1e.2003 00e0.9f1e.2004
IP address 10.0.0.21 10.0.0.22 10.0.0.23 10.0.0.24
Subnet mask 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0
Router address 10.0.0.10 10.0.0.10 10.0.0.10 10.0.0.10
DNS server address 10.0.0.2 10.0.0.2 10.0.0.2 10.0.0.2
TFTP server name tftpserver or
10.0.0.3
tftpserver or
10.0.0.3
tftpserver or
10.0.0.3
tftpserver or
10.0.0.3
Boot filename (configuration file)
(op
tional)
switcha-confg switchb-confg switchc-confg switchd-confg
Hostname (optional) switcha switchb switchc switchd

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing