Cisco Catalyst 4500 Series System Message Guide

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Catalyst 4500 Series Switch Cisco IOS System Message Guide
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Chapter 2 Messages and Recovery Procedures
SPANTREE Messages
SPANTREE Messages
This section contains the Spanning Tree Protocol (SPANTREE) messages.
SPANTREE-2
Error Message SPANTREE-2-PVSTSIM_OK: PVST Simulation inconsistency cleared on port
[char].
Explanation
The listed interface is no longer receiving PVST BPDUs advertising information
inconsistent with the CIST port information. The PVST simulation inconsistency is cleared and the
interface returns to normal operation.
Recommended Action This is an informational message only. No action is required.
Error Message
Error Message SPANTREE-2-BLOCK_BPDUGUARD:Received BPDU on port [char] with BPDU
Guard enabled. Disabling port.
Explanation
A BPDU was received in the specified interface that has the spanning tree BPDU guard
feature enabled. As a result, the interface was administratively shut down.
Recommended Action Remove the device sending BPDUs, or disable the BPDU guard feature. BPDU
guard can be locally configured on the interface or globally configured on all ports that have
PortFast enabled. After you resolve the conflict, reenable the interface by entering the no shutdown
command in interface configuration mode.
Error Message SPANTREE-2-BLOCK_PVID_LOCAL: Blocking [char] on [char]. Inconsistent
local vlan.
Explanation
The spanning tree port that is associated with the listed spanning tree instance [char]
and interface [char] is held in spanning tree blocking state until the port VLAN ID (PVID)
inconsistency is resolved. The listed spanning tree instance is that of the native VLAN ID of the
listed interface.
Recommended Action Verify that the configuration of the native VLAN ID is consistent on the
interfaces at each end of the 802.1Q trunk connection. When the configuration is consistent,
spanning tree automatically unblocks the interfaces.

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