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.

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

11-14

OL-9775-02

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Cisco Systems 3750E manual Tftp, 11-14