Cisco Catalyst 2960-X User Manual

MDA does not enforce the order of device authentication. However, for best results, we recommend that a
voice device is authenticated before a data device on an MDA-enabled port.
When migrating from Cisco Discovery Protocol bypass to next-generation authentication bypass, if single
or multi-host mode is used with an IP phone and one or more data devices, then move to multi-authentication
mode with next-generation authentication bypass with the advantage of visibility.
Note
Follow these guidelines for configuring MDA:
•
You must configure a switch port for MDA.
•
You must configure the voice VLAN for the IP phone when the host mode is set to multidomain.
•
Voice VLAN assignment on an MDA-enabled port is supported Cisco IOS Release 12.2(40)SE and
later.
•
To authorize a voice device, the AAA server must be configured to send a Cisco Attribute-Value (AV)
pair attribute with a value of device-traffic-class=voice. Without this value, the switch treats the voice
device as a data device.
•
The guest VLAN and restricted VLAN features only apply to the data devices on an MDA-enabled port.
The switch treats a voice device that fails authorization as a data device.
•
If more than one device attempts authorization on either the voice or the data domain of a port, it is error
disabled.
•
Until a device is authorized, the port drops its traffic. Non-Cisco IP phones or voice devices are allowed
into both the data and voice VLANs. The data VLAN allows the voice device to contact a DHCP server
to obtain an IP address and acquire the voice VLAN information. After the voice device starts sending
on the voice VLAN, its access to the data VLAN is blocked.
•
A voice device MAC address that is binding on the data VLAN is not counted towards the port security
MAC address limit.
•
MDA can use MAC authentication bypass as a fallback mechanism to allow the switch port to connect
to devices that do not support IEEE 802.1x authentication.
•
When a data or a voice device is detected on a port, its MAC address is blocked until authorization
succeeds. If the authorization fails, the MAC address remains blocked for 5 minutes.
•
If more than five devices are detected on the data VLAN or more than one voice device is detected on
the voice VLAN while a port is unauthorized, the port is error disabled.
•
When a port host mode is changed from single- or multihost to multidomain mode, an authorized data
device remains authorized on the port. However, a Cisco IP phone that has been allowed on the port
voice VLAN is automatically removed and must be reauthenticated on that port.
•
Active fallback mechanisms such as guest VLAN and restricted VLAN remain configured after a port
changes from single- or multihost mode to multidomain mode.
•
Switching a port host mode from multidomain to single- or multihost mode removes all authorized
devices from the port.
•
If a data domain is authorized first and placed in the guest VLAN, non-IEEE 802.1x-capable voice
devices need to tag their packets on the voice VLAN to trigger authentication.
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29048-01 293
Configuring IEEE 802.1x Port-Based Authentication
Multidomain Authentication

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