Cisco Systems SRW248G4PK9NA User Manual
16
Cisco Small Business 300 Series Managed Switch Administration Guide
254
IP Configuration
IP interface addresses can be configured manually by the user, or automatically
configured by a DHCP server. This section provides information for defining the
device IP addresses, either manually or by making the device a DHCP client.
configured by a DHCP server. This section provides information for defining the
device IP addresses, either manually or by making the device a DHCP client.
This section covers the following topics:
•
•
•
•
Overview
Some features are only available in Layer 2 or Layer 3 system mode, as described
below:
below:
•
In Layer 2 system mode, the device operates as a Layer 2 VLAN-aware
device, and has no routing capabilities.
device, and has no routing capabilities.
•
In Layer 3 system mode, the device has IP routing capabilities as well as
Layer 2 system mode capabilities. In this system mode, a Layer 3 port still
retains much of the Layer 2 functionality, such as Spanning Tree Protocol
and VLAN membership.
Layer 2 system mode capabilities. In this system mode, a Layer 3 port still
retains much of the Layer 2 functionality, such as Spanning Tree Protocol
and VLAN membership.
In Layer 3 system mode, the device does not support MAC-based VLAN,
Dynamic VLAN Assignment, VLAN Rate Limit, SYN Rate DoS Protection,
and Advanced QoS Policers.
Dynamic VLAN Assignment, VLAN Rate Limit, SYN Rate DoS Protection,
and Advanced QoS Policers.
Configuring the device to work in either mode is performed in the Administration >
System Settings page.
System Settings page.
NOTE
Switching from one system mode (layer) to another (on Sx500 devices) requires a
mandatory reboot, and the startup configuration of the device is then deleted.
mandatory reboot, and the startup configuration of the device is then deleted.