1-31
Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-4580-01
Chapter 1 Configuring Interfaces and Circuits
Configuring Circuits
Configuring Circuits
A circuit on the CSS is a logical entity that maps IP interfaces to a logical port or
group of logical ports, for example, a VLAN. Each VLAN circuit requires an IP
address. Assigning an IP address to each VLAN circuit allows the CSS to route
Ethernet interfaces from VLAN to VLAN. Router Discovery Protocol (RDP)
settings can also be configured for each circuit VLAN to advertise the CSS to
hosts.
This section includes the following topics:
• Entering Circuit Configuration Mode
• Configuring a Circuit IP Interface
• Configuring Router-Discovery Protocol Settings for a Circuit
• Showing Circuits
• Showing IP Interfaces
Entering Circuit Configuration Mode
To enter the circuit configuration mode to configure a VLAN, use the circuit
command. Enter the specific VLAN in uppercase letters. Do not include a space
between VLAN and the VLAN number. For example:
(config)# circuit VLAN7
(config-circuit[VLAN7])#
Configuring a Circuit IP Interface
This section includes the following topics:
• Configuring a Circuit IP Address
• Configuring a Circuit-IP Broadcast Address
• Configuring Circuit-IP Redirects
• Configuring Circuit-IP Unreachables
• Configuring Router-Discovery Preference for a Circuit IP Interface
• Enabling and Disabling a Circuit IP
