Cisco Catalyst 4500 Series Software Configuration Guide

57-17
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 57 Configuring Control Plane Policing and Layer 2 Control Packet QoS
Configuring Layer 2 Control Packet QoS
Disabling Layer 2 Control Packet QoS
The no qos control-packet command disables QoS for all packet types.
The following example shows how to disable QoS for CDP packets after QoS is enabled for all packet
types:
Switch# show running-configuration | include qos control-packets
qos control-packets bpdu-range
qos control-packets cdp-vtp
qos control-packets lldp
qos control-packets eapol
qos control-packets sstp
qos control-packets protocol-tunnel
Note When all control packets (CDP/VTP, bpdu-range, SSTP, LLDP, and protocol-tunnel), are enabled only
qos control-packets is nevgen’d. Individual protocol names mentioned in the previous output are
nvegen’d only if the some of the control packets are configured.
Switch# config terminal
Switch(config)# no qos control-packets cdp-vtp
Switch(config)# end
Switch# show running-configuration | include qos control-packets
qos control-packets bpdu-range
qos control-packets lldp
qos control-packets sstp
qos control-packets protocol-tunnel
Note When you unconfigure this feature for a specified protocol type, the user-configured policies handling
that protocol type immediately become ineffective. To save TCAM resources, remove the policies as
well as MACLs and class maps (auto-generated or user-defined).
Note TCAM resources are not consumed when the interface is in a down state.
Table 57-2 displays the auto-generated MACLs and class maps that are created when you enable the
feature on the corresponding packet type.
Table 57-2 Packet Types and Auto-Generated MACL/Class Maps
Packet Type Auto-Generated MACL/Class Map
BPDU-range mac access-list extended system-control-packet-bpdu-range
permit any 0180.c200.0000 0000.0000.000c
class-map match-any system-control-packet-bpdu-range
match access-group name system-control-packet-bpdu-range
SSTP mac access-list extended system-control-packet-sstp
permit any host 0100.0ccc.cccd
class-map match-any system-control-packet-sstp
match access-group name system-control-packet-sstp

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