Cisco Catalyst 2960-X User Manual

traffic are forwarded or blocked at router interfaces. For example, you can allow e-mail traffic to be forwarded
but not Telnet traffic. ACLs can be configured to block inbound traffic, outbound traffic, or both.
Access Control Entries
An ACL contains an ordered list of access control entries (ACEs). Each ACE specifies permit or deny and a
set of conditions the packet must satisfy in order to match the ACE. The meaning of permit or deny depends
on the context in which the ACL is used.
ACL Supported Types
The switch supports IP ACLs and Ethernet (MAC) ACLs:
•
IP ACLs filter IPv4 traffic, including TCP, User Datagram Protocol (UDP), Internet Group Management
Protocol (IGMP), and Internet Control Message Protocol (ICMP).
•
Ethernet ACLs filter non-IP traffic.
This switch also supports quality of service (QoS) classification ACLs.
Supported ACLs
The switch supports three types of ACLs to filter traffic:
•
Port ACLs access-control traffic entering a Layer 2 interface. You can apply only one IP access list and
one MAC access list to a Layer 2 interface.
•
Router ACLs access-control routed traffic between VLANs and are applied to Layer 3 interfaces in a
specific direction (inbound or outbound).
•
VLAN ACLs or VLAN maps access-control all packets (bridged and routed). You can use VLAN maps
to filter traffic between devices in the same VLAN. VLAN maps are configured to provide access control
based on Layer 3 addresses for IPv4. Unsupported protocols are access-controlled through MAC addresses
using Ethernet ACEs. After a VLAN map is applied to a VLAN, all packets (routed or bridged) entering
the VLAN are checked against the VLAN map. Packets can either enter the VLAN through a switch
port or through a routed port after being routed.
ACL Precedence
When VLAN maps, Port ACLs, and router ACLs are configured on the same switch, the filtering precedence,
from greatest to least for ingress traffic is port ACL, VLAN map, and then router ACL. For egress traffic, the
filtering precedence is router ACL, VLAN map, and then port ACL.
The following examples describe simple use cases:
•
When both an input port ACL and a VLAN map are applied, incoming packets received on ports with
a port ACL applied are filtered by the port ACL. Other packets are filtered by the VLAN map
•
When an input router ACL and input port ACL exist in a switch virtual interface (SVI), incoming packets
received on ports to which a port ACL is applied are filtered by the port ACL. Incoming routed IP packets
received on other ports are filtered by the router ACL. Other packets are not filtered.
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
142 OL-29048-01
Configuring IPv4 ACLs
Supported ACLs

Cisco Catalyst 2960-X Specifications

General

Console port	RJ-45
USB 2.0 ports quantity	2
SFP module slots quantity	4
Installed SFP modules quantity	-
Gigabit Ethernet (copper) ports quantity	48
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Power source	AC
Input current	5 A
AC input voltage	100 - 240 V
Power consumption (typical)	60.9 W
Number of power supply units	1
Redundant power supply (RPS) support	Yes
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4000 m
Storage temperature (T-T)	-25 - 70 °C
Operating temperature (T-T)	-5 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Switching protocols	UDP, TCP, RADIUS/TACACS+
Number of VLANs	1023
Networking standards	IEEE 802.1ab, IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3at, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Throughput	107.1 Mpps
Jumbo frames	9216
Number of queues	8
MAC address table	16000 entries
Number of static routes	1000
DHCP features	DHCP server
Authentication	MAC-based authentication, Port-based authentication
Security algorithms	802.1x RADIUS, SNMP, SSH
Access Control List (ACL) rules	3
Switch type	Managed
Switch layer	L2/L3
Safety	UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950-1
Form factor	1U
Product color	Black
Total Power over Ethernet (PoE) budget	370 W
Power over Ethernet (PoE) ports quantity	24
Power over Ethernet plus (PoE+) ports quantity	12
Memory type	DRAM
Noise level	39 dB
Flash memory	128 MB
Internal memory	512 MB
Processor frequency	600 MHz
Mean time between failures (MTBF)	276870 h

Weight and Dimensions

Depth	368 mm
Width	445 mm
Height	45 mm
Weight	5800 g