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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 11 Configuring Interface Characteristics
Understanding Interface Types
In Figure 11-4, if the Ethernet management port and the network ports are associated with the same
routing process, the routes are propagated as follows:
• The routes from the Ethernet management port are propagated through the network ports to the
network.
• The routes from the network ports are propagated through the Ethernet management port to the
network.
Because routing is not supported between the Ethernet management port and the network ports, traffic
between these ports cannot be sent or received. If this happens, data packet loops occur between the
ports, which disrupt the switch and network operation. To prevent the loops, configure route filters to
avoid routes between the Ethernet management port and the network ports.
The Ethernet management port supports only these features:
• Express Setup
• Network Assistant
• Telnet with passwords
• TFTP
• Secure Shell (SSH)
• DHCP-based autoconfiguration
• SMNP (only the ENTITY-MIB and the IF-MIB)
• IP ping
• Interface features
–
Speed—10 Mb/s, 100 Mb/s, and autonegotiation
–
Duplex mode—Full, half, and autonegotiation
–
Loopback detection
• Cisco Discovery Protocol (CDP)
• DHCP relay agent
• IPv4 and IPv6 access control lists (ACLs)
• Routing protocols
Caution Before enabling a feature on the Ethernet management port, make sure that the feature is supported. If
you try to configure an unsupported feature on the Ethernet Management port, the feature might not work
properly, and the switch might fail.