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Chapter 1 Configuring Interfaces and Circuits
Configuring Interfaces
1-10
Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-8241-02
• phy 100Mbits-HD - Sets the Fast Ethernet port to 100 Mbps and half-duplex
mode.
• phy 1Gbits-FD-asym - Sets the Gigabit Ethernet port to full-duplex mode
with asymmetric pause frames transmitted toward the link partner.
Asymmetric pause is useful when you need the CSS to pause its link partner
but not to respond to pause frames transmitted from the link partner.
• phy 1Gbits-FD-no pause - Sets the Gigabit Ethernet port to full-duplex
mode with no pause frames transmitted or received.
• phy 1Gbits-FD-sym - Sets the Gigabit Ethernet port to full-duplex mode
with symmetric pause (pause frames transmitted and received by the CSS).
Symmetric pause is useful for point-to-point links. By default, all Gigabit
Ethernet ports are configured to full-duplex mode with symmetric pause.
• phy 1Gbits-FD-sym-asym - Sets the Gigabit Ethernet port to full-duplex
mode with symmetric and asymmetric pause frames used with the local
device.
For example, to configure Fast Ethernet interface 1 on the I/O module in slot 2 of
the CSS 11503 to 100 Mbps and half-duplex mode, enter:
(config-if[2/1])# phy 100Mbits-HD
For example, to configure gigabit interface 1 on the SCM in slot 1 of the
CSS 11503 to full-duplex mode with asymmetric pause, enter:
(config-if[1/1])# phy auto-negotiate disable
(config-if[1/1])# phy 1Gbits-FD-asym
Setting Interface Maximum Idle Time
As a troubleshooting tool to verify an interface’s ability to receive traffic, use the
max-idle command. If the interface does not receive traffic within the configured
idle time, the CSS reinitializes the interface automatically.
Set the idle time to a value greater than the interval over which the interface is
receiving traffic. For example, if the interface receives traffic every 90 seconds,
set the idle time to a value greater than 90 seconds. If you set the idle time to less
than 90 seconds, the CSS would continuously reinitialize the interface before the
interface was able to receive traffic.
Enter an idle time from 15 to 65535 seconds. The default is 0, which disables the
idle timer.