Lenovo Flex System Fabric CN4093 Посібник з експлуатації - Сторінка 15
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Switch partitioning (SPAR):
SPAR forms separate virtual switching contexts by segmenting the data plane of the
switch. Data plane traffic is not shared between SPARs on the same switch.
SPAR operates as a Layer 2 broadcast network. Hosts on the same VLAN attached to
a SPAR can communicate with each other and with the upstream switch. Hosts on
the same VLAN but attached to different SPARs communicate through the upstream
switch.
SPAR is implemented as a dedicated VLAN with a set of internal compute node ports
and a single external port or link aggregation (LAG). Multiple external ports or LAGs
are not allowed in SPAR. A port can be a member of only one SPAR.
Converged Enhanced Ethernet:
Priority-Based Flow Control (PFC) (IEEE 802.1Qbb) extends 802.3x standard flow control to
allow the switch to pause traffic that is based on the 802.1p priority value in each packet's
VLAN tag.
Enhanced Transmission Selection (ETS) (IEEE 802.1Qaz) provides a method for allocating link
bandwidth that is based on the 802.1p priority value in each packet's VLAN tag.
Data Center Bridging Capability Exchange Protocol (DCBX) (IEEE 802.1AB) allows
neighboring network devices to exchange information about their capabilities.
Multi-hop RDMA over Converged Ethernet (RoCE) with LAG support.
Fibre Channel and Fibre Channel over Ethernet (FCoE):
FC-BB-5 FCoE specification compliant
Native FC Forwarder (FCF) switch operations
End-to-end FCoE support (initiator to target)
FCoE Initialization Protocol (FIP) support
FCoE Link Aggregation Group (LAG) support
Optimized FCoE to FCoE forwarding
Omni Ports support 4/8 Gb FC when FC SFPs+ are installed in these ports
Support for F_port, E_Port ISL, NP_port and VF_port FC port types
Full Fabric mode for end-to-end FCoE or FCoE gateway; NPV Gateway mode for external FC
SAN attachments (support for Brocade and Cisco MDS external SANs)
Supports 16 buffer credits
Fabric Device Management Interface (FDMI)
NPIV support
Fabric Shortest Path First (FSPF)
Port security
Fibre Channel ping, debugging
Supports 2,000 secure FCoE sessions with FIP Snooping by using Class ID ACLs
Fabric services in Full Fabric mode:
Name Server
Registered State Change Notification (RSCN)
Login services
Zoning
Stacking:
Hybrid stacking support (from two to six EN4093R switches with two CN4093 switches);
single IP management
FCoE support
FCoE LAG on external ports
802.1Qbg support
vNIC and UFP support:
UFP with 802.1Qbg
Support for UFP with private VLANs
Lenovo Flex System Fabric CN4093 10Gb Converged Scalable Switch
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