CISCO UCS 2408 I/O Module (8 External 25Gb Ports 32 Internal 10Gb

Performance

• Hardware forwarding at 1.04 Tbps
• Low-latency design, providing predictable, consistent traffic latency regardless of packet size, traffic pattern, or enabled features

Layer 2

• Layer 2 VLAN trunks
• IEEE 802.1Q VLAN encapsulation
• Support for up to 1024 VLANs and Virtual SANs (VSANs)
• Jumbo frames on all ports (up to 9216 bytes)
• Pause frames (IEEE 802.3x)

QoS

• Layer 2 IEEE 802.1p (Class of Service [CoS])
• CoS-based egress queuing
• Egress strict-priority queuing
• Egress port-based scheduling: Weighted Round Robin (WRR)
• Sixteen hardware queues per port

High availability

• Up to two fabric extenders can work in the Cisco UCS 5100 Series Blade Server Chassis
• Active/active data-plane operation with failover
• Capability to fail over from one fabric extender to another in the event of a failure
• Active/passive management-plane operation
• Support for nonstop management-plane functions; if the active fabric extender fails, the passive fabric extender takes over the chassis management functions

Management

• Management of fabric extenders integrated into Cisco UCS Manager (please refer to the Cisco UCS Manager data sheet for more information about management interfaces)
• Capability to manage blade server chassis components such as power supplies, fans, and blades in conjunction with the fabric interconnect
• Firmware levels between the fabric extender and fabric interconnect always synchronized
• Low-latency, lossless 25 Gigabit Ethernet unified network fabric
• PFC (per-priority pause frame support)
• Data Center Bridging Exchange (DCBX) Protocol
• IEEE 802.1Qaz: Bandwidth management

Industry standards

• IEEE 802.1p: CoS prioritization
• IEEE 802.1Q: VLAN tagging
• IEEE