Cisco Catalyst 2960-X User Manual

PurposeCommand or Action
•
Specify the time-out value in seconds; the default is 120 seconds.
The range is 0 to 120 seconds. This parameter applies to the SSH
Example:
Switch(config)# ip ssh timeout 90
negotiation phase. After the connection is established, the Switch
uses the default time-out values of the CLI-based sessions.
authentication-retries 2
By default, up to five simultaneous, encrypted SSH connections for
multiple CLI-based sessions over the network are available (session
0 to session 4). After the execution shell starts, the CLI-based session
time-out value returns to the default of 10 minutes.
•
Specify the number of times that a client can re-authenticate to the
server. The default is 3; the range is 0 to 5.
Repeat this step when configuring both parameters.
(Optional) Configures the virtual terminal line settings.Use one or both of the following:
Step 5
•
line
vtyline_number[ ending_line_number ]
•
Enters line configuration mode to configure the virtual terminal line
settings. For line_number and ending_line_number, specify a pair
of lines. The range is 0 to 15.
•
transport input ssh
•
Specifies that the Switch prevent non-SSH Telnet connections. This
limits the router to only SSH connections.
Example:
Switch(config)# line vty 1 10
or
Switch(config-line)# transport input
ssh
Returns to privileged EXEC mode.end
Example:
Switch(config-line)# end
Step 6
Verifies your entries.show running-config
Example:
Switch# show running-config
Step 7
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Switch# copy running-config
Step 8
startup-config
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
120 OL-29048-01
Configuring Secure Shell (SSH)
Configuring the SSH Server

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