Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
traceroute mac ip
traceroute mac ip
Use the traceroute mac ip privileged EXEC command to display the Layer 2 path taken by the packets
from the specified source IP address or hostname to the specified destination IP address or hostname.
tracetroute mac ip {source-ip-address | source-hostname} {destination-ip-address |
destination-hostname} [detail]
Syntax Description
Defaults There is no default.
Command Modes Privileged EXEC
Command History
Usage Guidelines For Layer 2 traceroute to functional properly, Cisco Discovery Protocol (CDP) must be enabled on all
the switches in the network. Do not disable CDP.
When the switch detects an device in the Layer 2 path that does not support Layer 2 traceroute, the switch
continues to send Layer 2 trace queries and lets them time out.
The maximum number of hops identified in the path is ten.
The traceroute mac ip command output shows the Layer 2 path when the specified source and
destination IP addresses are in the same subnet. When you specify the IP addresses, the switch uses
Address Resolution Protocol (ARP) to associate the IP addresses with the corresponding MAC addresses
and the VLAN IDs.
• If an ARP entry exists for the specified IP address, the switch uses the associated MAC address and
identifies the physical path.
• If an ARP entry does not exist, the switch sends an ARP query and tries to resolve the IP address.
The IP addresses must be in the same subnet. If the IP address is not resolved, the path is not
identified, and an error message appears.
source-ip-address Specify the IP address of the source switch as a 32-bit quantity in
dotted-decimal format.
source-hostname Specify the IP hostname of the source switch.
destination-ip-address Specify the IP address of the destination switch as a 32-bit quantity in
dotted-decimal format.
destination-hostname Specify the IP hostname of the destination switch.
detail (Optional) Specify that detailed information appears.
Release Modification
12.1(12c)EA1 This command was introduced.

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz