Cisco Catalyst 4500 Series Message Guide

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Catalyst 4500 Series Switch Cisco IOS System Message Guide Release 12.2(31)SGA
OL-11541-01
Chapter 2 Messages and Recovery Procedures
EC Messages
Error Message C4K_EBM-4-ZEROETHERADDR:Filtering Ethernet MAC address of value zero
from agent host table interface (port: [char])
Explanation
The switch received a packet with the MAC address 00:00:00:00:00:00. This MAC
address is not valid and was probably generated by some non-IEEE 802.1D-compliant hardware or
software in the network.
The host sort algorithm does not sort hosts with MAC addresses that have all zeros
(00:00:00:00:00:00), because a MAC address that has all zeros can not be listed in the learned host
table. A request to show learned hosts, either by the show cam dynamic command or by an SNMP
request, does not list a MAC address that has all zeros.
Recommended Action Track the source of the invalid MAC address because it might cause other
problems.
EC Messages
This section contains the EtherChannel (EC) messages.
EC-4
Error Message EC-4-NOMEM:Not enough memory available for [char]
Explanation
The Port Aggregation Protocol or EtherChannel cannot obtain the memory it needs.
Recommended Action This is an informational message only. No action is required.
EC-5
Error Message EC-5-BUNDLE:Interface [char] joined port-channel [char]
Explanation
The interface has joined the bundle.
Recommended Action This is an informational message only. No action is required.
Error Message EC-5-CANNOT_ALLOCATE_AGGREGATOR: Aggregator limit reached
Explanation
A new aggregator cannot be allocated in the group.
Recommended Action Change the port attributes of the ports in the group so that they match and join
the same aggregator.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E