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Cisco Catalyst 3560-X User Manual

Cisco Catalyst 3560-X
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1-4
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring MACsec Encryption
Understanding Media Access Control Security and MACsec Key Agreement
MACsec, MKA and 802.1x Host Modes
You can use MACsec and the MKA Protocol with 802.1x single-host mode, multiple-host mode, or Multi
Domain Authentication (MDA) mode. Multiple authentication mode is not supported.
Single-Host Mode
Figure 1-1 shows how a single EAP authenticated session is secured by MACsec by using MKA.
Figure 1-1 MACsec in Single-Host Mode with a Secured Data Session
Multiple-Host Mode
In standard (not 802.1x REV) 802. multiple-host mode, a port is open or closed based on a single
authentication. If one user, the primary secured client services client host, is authenticated, the same
level of network access is provided to any host connected to the same port. If a secondary host is a
MACsec supplicant, it cannot be authenticated and traffic would no flow. A secondary host that is a
non-MACsec host can send traffic to the network without authentication because it is in multiple-host
mode. See Figure 1-2.
Figure 1-2 MACsec in Standard Multiple-Host Mode - Unsecured
We do not recommend using multi-host mode because after the first successful client, authentication is
not required for other clients, which is not secure.
330051
MACsec
AAA
Access-control system
Switch with
MACsec
configured
Unsecured
Host
253664
AAA
Access-control system
Switch with
MACsec
configured
Primary host
Secondary host
Secondary host

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Cisco Catalyst 3560-X Specifications

General IconGeneral
Enclosure TypeRack-mountable - 1U
SubtypeGigabit Ethernet
Ports48 x 10/100/1000 + 4 x SFP
Flash Memory64 MB
Power DeviceInternal power supply
Voltage RequiredAC 120/230 V (50/60 Hz)
Operating SystemCisco IOS
Device TypeSwitch
PerformanceSwitching capacity: 128 Gbps
Jumbo Frame SupportYes
Routing ProtocolRIP-1, RIP-2, EIGRP
Remote Management ProtocolSNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP, HTTPS
FeaturesDHCP support, VLAN support, QoS, IPv6 support, Syslog
Compliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad, IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag, IEEE 802.3at
StackingStackable
Security FeaturesSSH, RADIUS, TACACS+
ManagementCLI
Dimensions (H x W x D)17.5 in
Operating Temperature32 to 113 °F (0 to 45 °C)
Humidity10 - 95% (non-condensing)

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