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- Power over Ethernet
Cisco Catalyst 9400 Series switches offer line cards, power supplies, and accessories required to deploy and operate standards-based Power over Ethernet, Power over Ethernet Plus (PoE/PoE+) and Cisco UPOE. PoE provides power over 100m of standard Unshielded Twisted-Pair (UTP) cables when an IEEE 802.3af/at-compliant or Cisco pre-standard powered device is attached to the PoE/PoE+ and Cisco UPOE line card port. Instead of requiring wall power, attached devices such as IP phones, wireless base stations, video cameras, and other IEEE- compliant appliances can use power provided from the Cisco Catalyst 9400 Series UPOE line cards. This capability gives network administrators centralized control over power and eliminates the need to install outlets in ceilings and other out-of-the-way places where a powered device can be installed.
- Energy-efficient Ethernet
Energy-efficient Ethernet (EEE) is an IEEE 802.3az standard that is designed to reduce power consumption in Ethernet networks during idle periods. EEE can be enabled on devices that support low-power Idle (LPI) mode. Such devices can save power by entering LPI mode during periods of low utilization. In LPI mode, systems on both ends of the link can save power by shutting down certain services. EEE provides the protocol needed to transition into and out of LPI mode in a way that is transparent to upper layer protocols and applications.
- Functional transparency
Cisco Catalyst 9400 Series switches offer a line of modules that support numerous speeds and physical media combinations. These line cards are functionally transparent; all the packet processing, queuing, buffering and Quality of Service (QoS) occur in the supervisor engine. To that end line cards acquire the features and capabilities of the installed supervisor engine. The architecture let you easily upgrade all Ethernet line cards on your Cisco Catalyst 9400 Series switches to newer switching functions by adding a supervisor engine. The simple design of the line cards results in a very high Mean Time Between Failures (MTBF), helping to ensure high availability for a single connection to an end user.
- Modular versatility
Cisco Catalyst 9400 Series switches are a centralized architecture that is designed to provide dedicated speed bandwidth to each line card slot within the chassis. Each line card has a dedicated bandwidth to the supervisor engine for packet processing. All network data that flows into Cisco Catalyst 9400 Series switches through the various line cards goes through the supervisor engine for processing, even in single-slot, port-to-port communications.
Cisco Catalyst 9400 Series switches are Cisco's modular enterprise switching access and aggregation platform built for security, IoT and cloud. This switch series forms the foundational building blocks for SD-Access, Cisco's architecture. Catalyst 9400 Series switches provide unparalleled investment protection with a chassis architecture. Cisco Catalyst 9400 Series switches deliver state-of-the-art availability with capabilities like SSO/NSF, uplink resiliency, N+1/N+N redundancy for power supplies. Catalyst 9400 Series switches are enterprise-optimized with a dual-service fan tray design, side-to-side airflow and is closet-friendly.