Cisco CATALYST 2960 User Manual

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Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
OL-26520-01
Chapter 33 Configuring QoS
Configuring Standard QoS
Classifying Traffic by Using ACLs
You can classify IP traffic by using IP standard or IP extended ACLs or IPv6 ACLs. You can classify
non-IP traffic by using Layer 2 MAC ACLs.
Creating an IP standard ACL
Beginning in privileged EXEC mode, follow these steps to create an IP standard ACL for IP traffic:
To delete an access list, use the no access-list access-list-number global configuration command.
This example shows how to allow access for only those hosts on the three specified networks. The
wildcard bits apply to the host portions of the network addresses. Any host with a source address that
does not match the access list statements is rejected.
Switch(config)# access-list 1 permit 192.5.255.0 0.0.0.255
Switch(config)# access-list 1 permit 128.88.0.0 0.0.255.255
Switch(config)# access-list 1 permit 36.0.0.0 0.0.0.255
! (Note: all other access implicitly denied)
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
access-list access-list-number {deny |
permit} source [source-wildcard]
Create an IP standard ACL, repeating the command as many times as
necessary.
• For access-list-number, enter the access list number. The range is
1 to 99 and 1300 to 1999.
• Use the permit keyword to permit a certain type of traffic if the
conditions are matched. Use the deny keyword to deny a certain
type of traffic if conditions are matched.
• For source, enter the network or host from which the packet is
being sent. You can use the any keyword as an abbreviation for
0.0.0.0 255.255.255.255.
• (Optional) For source-wildcard, enter the wildcard bits in dotted
decimal notation to be applied to the source. Place ones in the bit
positions that you want to ignore.
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.
Step 3
end Return to privileged EXEC mode.
Step 4
show access-lists Verify your entries.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.

Cisco CATALYST 2960 Specifications

General

Manageable	Yes
Stacking	No
Model	Catalyst 2960 Series Switches
Power over Ethernet (PoE)	Available on some models (IEEE 802.3af)
VLANs	255 active VLANs
Features	QoS
Operating Temperature	32 to 113°F (0 to 45°C)
Relative Humidity	10% to 85% non-condensing
Power Consumption	Varies by model (30W to 400W)