Cisco Systems 3560X Manual De Usuario
39-51
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 39 Configuring QoS
Configuring Standard QoS
This example shows how to create a Layer 2 MAC ACL with two permit statements. The first statement
allows traffic from the host with MAC address 0001.0000.0001 to the host with MAC
address 0002.0000.0001. The second statement allows only Ethertype XNS-IDP traffic from the host
with MAC address 0001.0000.0002 to the host with MAC address 0002.0000.0002.
allows traffic from the host with MAC address 0001.0000.0001 to the host with MAC
address 0002.0000.0001. The second statement allows only Ethertype XNS-IDP traffic from the host
with MAC address 0001.0000.0002 to the host with MAC address 0002.0000.0002.
Switch(config)# mac access-list extended maclist1
Switch(config-ext-macl)# permit 0001.0000.0001 0.0.0 0002.0000.0001 0.0.0
Switch(config-ext-macl)# permit 0001.0000.0002 0.0.0 0002.0000.0002 0.0.0 xns-idp
! (Note: all other access implicitly denied)
Classifying Traffic by Using Class Maps
You use the class-map global configuration command to name and to isolate a specific traffic flow (or
class) from all other traffic. The class map defines the criteria to use to match against a specific traffic
flow to further classify it. Match statements can include criteria such as an ACL, IP precedence values,
or DSCP values. The match criterion is defined with one match statement entered within the class-map
configuration mode.
class) from all other traffic. The class map defines the criteria to use to match against a specific traffic
flow to further classify it. Match statements can include criteria such as an ACL, IP precedence values,
or DSCP values. The match criterion is defined with one match statement entered within the class-map
configuration mode.
Note
You can also create class-maps during policy map creation by using the class policy-map configuration
command. For more information, see the
command. For more information, see the
and the
Beginning in privileged EXEC mode, follow these steps to create a class map and to define the match
criterion to classify traffic:
criterion to classify traffic:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
access-list
access-list-number {deny | permit}
source
[source-wildcard]
or
access-list
access-list-number {deny | permit}
protocol source
[source-wildcard] destination
[destination-wildcard]
or
ipv6 access-list
access-list-name {deny | permit}
protocol
{source-ipv6-prefix/prefix-length | any |
host
source-ipv6-address}
[operator [port-number]] {destination-ipv6-prefix/
prefix-length
prefix-length
| any | host destination-ipv6-address}
[operator [port-number]] [dscp value] [fragments]
[log] [log-input] [routing] [sequence value]
[time-range name]
[log] [log-input] [routing] [sequence value]
[time-range name]
or
mac access-list extended
name {permit | deny}
{host src-MAC-addr mask | any | host
dst-MAC-addr
dst-MAC-addr
| dst-MAC-addr mask} [type mask]
Create an IP standard or extended ACL, an IPv6 ACL for IP
traffic, or a Layer 2 MAC ACL for non-IP traffic, repeating the
command as many times as necessary.
traffic, or a Layer 2 MAC ACL for non-IP traffic, repeating the
command as many times as necessary.
Note
When creating an access list, remember that, by
default, the end of the access list contains an implicit
deny statement for everything if it did not find a match
before reaching the end.
default, the end of the access list contains an implicit
deny statement for everything if it did not find a match
before reaching the end.