User experience:
IP service level agreements (SLAs) allow customers to secure new business-critical IP applications, also as IP services using data, voice, and video, on an IP network. This role requires the IP Services role set. The automatic DHCP configuration of multiple switches through a boot server makes it easy to deploy the switch. Automatic QoS simplifies QoS configuration in Voice over IP (VoIP) networks by issuing global switches and interface commands to discover Cisco IP phones, classify traffic, and help enable outbound queue configuration.
Auto-negotiation on all ports automatically selects half or full-duplex transmission mode to optimize bandwidth. Media Dependent Interface Auto Crossover (MDIX) automatically adjusts the transmit and receive pairs if the wrong cable type (crossover or straight) is installed.
Simplified setup and connectivity:
Dynamic Link Protocol makes it easy to configure a dynamic link on all ports on the switch. Port Aggregation Protocol automates the creation of Cisco Fast EtherChannel groups or Gigabit EtherChannel groups to link to another switch, router, or server. The Link Aggregation Control Protocol (LACP) enables the creation of Ethernet channels with IEEE 802.3ad compliant devices. This feature is similar to the Cisco EtherChannel and PAgP technology.
The Unidirectional Link Detection Protocol and aggressive UDLD allow unidirectional links caused by improper fiber optic cabling or port faults to be detected and disabled on fiber-optic interfaces. Cisco VLAN Trunking Protocol Version 3 supports dynamic VLANs and dynamic trunking configuration on all switches.
Efficient switch operation:
The Switch Database Manager templates, VLAN template (specific to the LAN Base license level), and Advanced template allow the administrator to automatically optimize the Content Addressable Ternary Memory allocation to desired features supported specific implementation requirements. The Local Proxy Address Resolution Protocol (ARP) works in conjunction with the private VLAN edge to attenuate transmissions and maximize available bandwidth.
Managing the stacking master configuration with Cisco StackWise-480 technology helps ensure that all switches are automatically updated when the master switch receives a new version of the software. Automatic software version checking and updating help ensure that all members of the stack have the same software version.
Trivial File Transfer Protocol reduces the value of managing software updates by downloading from a centralized location. Network Timing Protocol (NTP) provides a consistent and accurate timestamp for all intranet switches.
Multicast:
Multicast optimized for more wireless cabling: The Cisco Switch Catalyst 3850 offers greater multicast efficiency by receiving just one multicast stream and replicating it for all wired and wireless devices connected thereto switch. Internet Group Management Protocol v1, v2, v3 snooping for IPv4: Multicast Listener Discovery v1 and v2 snooping provides fast connections and exits of multicast stream clients and limits video traffic It consumes a lot of bandwidth only to requesters.
Supervision:
Remote Switch Port Analyzer allows administrators to remotely monitor ports on a Layer 2 switch network from the other turn on an equivalent network. To improve traffic management, monitoring, and analysis, the Embedded Remote Monitoring software agent supports four RMON groups. Layer 2 traceroute makes troubleshooting easy by identifying the physical path a packet takes from source to destination. Wireless RF management provides real-time and historical information on RF interference affecting network performance on controllers using Cisco CleanAir technology integration throughout the system.
