Cisco UCS 2408 I O Module (8 External 25Gb Ports 32 Internal 10Gb (UCS-IOM-2408=)

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 802.3: Ethernet
• IEEE 802.3ad: Link Aggregation Control Protocol (LACP)
• IEEE 803.3by: 25 Gigabit Ethernet
• SFP28 support

Physical specifications

SFP28 optics

Cisco UCS products support 25 Gigabit Ethernet SFP28 copper Twinax cables for short distances and SFP28 optics for longer distances. The 25-Gigabit Ethernet cables and transceivers qualified listed in this data sheet are qualified to work with both Cisco UCS 6454 and Cisco UCS 64108 Fabric Interconnect and Cisco UCS 2408 Fabric Extender.

Environment

• Operating temperature: 32 to 104°F (0 to 40°C)
• Nonoperating temperature: -40 to 158°F (-40 to 70°C)
• Humidity: 5 to 95% (noncondensing)
• Altitude: 0 to 10,000 ft (0 to 3000m)