Cisco S45IPBK9-12231SG= Manuale Utente
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802.1x Unidirectional Controlled Port
802.1x unidirectional controlled port allows the Wake-on-LAN (WoL) magic packets to reach a workstation attached to an unauthorized 802.1x
switch port. WoL is typically used to push out OSs or software updates from a central server to workstations at night. When a workstation is
powered down at night, the 802.1x switch port is not authenticated. The 802.1x unidirectional controlled port feature enables the one-way WoL
magic packets to power on the sleeping workstation for the 802.1x authentication. It expands the WoL operations to workstations attached to 802.1x
switch ports.
Private VLAN Promiscuous Trunk
Private VLANs (PVLANs) are an effective means of conserving IP address space while isolating Layer 2 traffic for devices residing within the same
subnet. A promiscuous port in a PVLAN is an upstream port, carrying traffic between the upstream device in a primary VLAN and the downstream
devices in secondary VLANs. Private VLAN promiscuous trunk extends the promiscuous port to an 802.1Q trunk port, carrying multiple primary
VLANs (hence multiple subnets). Private VLAN promiscuous trunk is typically used to offer different services or content on different primary
VLANs to isolated subscribers. Secondary VLANs cannot be carried over the private VLAN promiscuous trunk.
MAC Address Notification
MAC address notification monitors the MAC addresses that are learned by, aged out, or removed from the switch. Notifications are sent out or
retrieved using the CISCO-MAC-NOTIFICATION MIB. It is typically used by a central network management application to collect such MAC
address notification events for host moves. User-configurable MAC table utilization thresholds can be defined to notify any potential DoS or man-
in-the-middle attack.
Voice VLAN Sticky Port Security
Port security restricts the MAC addresses allowed or the maximum number of MAC addresses on a switch port. Sticky port security extends port
security by saving the dynamically learned MAC addresses in the running configuration to survive port link down and switch reset. Voice VLAN
sticky port security further extends the sticky port security to the voice-over-IP deployment. It locks a port and blocks access from a station with a
MAC address different from the IP phone and the workstation behind the IP phone.
Combined Mode Power Resiliency
Combined Mode Power Resiliency
is an extension of the traditional combined mode power supply behavior; it is only applicable to the 4200W
power supply. Each 4200W power supply contains two smaller power supplies (called a subunit). In Combined Mode Power Resiliency the system
only relies on power from three out of four power supply sub - units. When using 200V AC, this feature ensures that 5500W of power is available
while the switch is protected against a single input power failure or sub - unit component failure. When using four 110V AC, Combined Mode
Power Resiliency provides up to 2,728 Watts.
VRRP
Virtual Router Redundancy Protocol (VRRP) is a standard-based first-hop redundancy protocol. With VRRP, a group of routers functions as one
virtual router by sharing one virtual IP address and one virtual MAC address. The master router performs packet forwarding, while the backup
routers stay idle. VRRP is typically used in the multivendor first-hop gateway redundancy deployment.
Secure Copy Protocol
Secure Copy Protocol (SCP) provides a secure and authenticated way to transfer files between a switch and a network management station. It uses
the Secure Shell (SSH) Protocol as a transport mechanism for file copy operations. SCP is typically used for secure transfer of switch configurations
and images. Both client side and server side of SCP are supported.