Cisco 6504-E User Guide - Page 145

Chapter 5 Physical Object Dialog Boxes C6576M Ethernet Interface Dialog Box • Duplex-Displays the duplex mode for the port. This attribute is only editable if it is a Fast Ethernet interface. In this case, you can choose one of the following modes: - half - full - disagree (read-only) - auto If the Speed attribute is set to autoDetect, the Duplex will be set to auto. • Link Up/Down Trap-Indicates if link up or link down traps are being generated. This list contains the following values: - enabled - disabled • Input Queue Length-Displays the input queue length in packets. • Output Queue Length-Displays the output queue length in packets. • Delay-Specifies the delay in tens of microseconds for an interface or network segment. Note The Delay attribute is an informational parameter used only to communicate the current bandwidth to the higher-level protocols (such as IGRP, EIGRP); you cannot adjust the actual delay of an interface with this command. • Bandwidth-Overwrites default bandwidth in kilobits per second. Layer 2 Area The Layer 2 area of the C6576M Ethernet Interface dialog box provides the following information: • MAC Address-Displays the MAC address of the interface. This attribute is read-only. • MTU-Displays the maximum transmission unit (MTU) size in bytes. The size of the largest packet which can be sent/received on the interface, specified in octets. For interfaces that are used for transmitting network datagrams, this is the size of the largest network datagram that can be sent on the interface. Note IOS 12.1(8a)E5 caveat: Jumbo frame support is incompatible with the IS-IS routing protocol. Leave the MTU size at the default value on any interface where IS-IS provides routing. Note For Native IOS, any value for the MTU will be accepted although it is recommeneded that only 1500 or 9600 bytes is configured. For Hybrid OS, if jumbo frames are enabled, the MTU will be reported as 9216 bytes. If jumbo frames are not enabled, the MTU will be reported as 1500 bytes. Any input value greater than or equal to 9216 bytes will be taken as 9216 bytes, and the jumbo frames will be enabled. Any input value less than 9216 bytes will be taken as 1500 bytes, and the jumbo frames will be disabled. • Default VLAN-Displays the VLAN to which this interface belongs if it stops trunking. This is a read-only attribute. Cisco 6500/7600 Series Manager User Guide 5-31