Interconnect, Logical

 

 

 

 

Interconnect, Networks

 

 

 

 

Interconnect

Uplink Sets

 

NIC

Connections

 

 

Network A

 

 

 

 

 

Teaming

 

(VLAN 100)

 

 

Drivers

 

 

 

 

LOM1

 

Stacking

(Optional)

ToR/

 

Link

Aggregation Layer

 

Redundant

 

 

 

Network A

LOM2

 

Interconnect

uplinks

(VLAN 100)

 

 

 

Optional Teaming:

 

Network A

 

 

 

(VLAN 100)

 

 

Load balancing

 

 

 

 

 

 

 

and/or failover

 

 

 

 

Server Blade

 

Logical Interconnect

 

 

Uplink sets

An uplink set defines a group of networks and physical ports on the interconnect in an enclosure. An uplink set enables you to attach the interconnect to the data center networks. An uplink set enables multiple ports to support port aggregation (multiple ports connected to a single external interconnect) and link failover with a consistent set of VLAN networks.

For Ethernet connections, an uplink set enables you to identify interconnect uplinks that carry multiple networks over the same cable. For Fibre Channel connections, you can only add one network to an uplink set. Fibre Channel does allow virtual networks or VLANs.

An uplink set is part of a logical interconnect. The initial configuration of the uplink sets for a logical interconnect is determined by the configuration of the uplink sets for the logical interconnect group, but you can change (override) the uplink sets for a specific logical interconnect. Changes you make to the uplink sets for a logical interconnect group are not automatically propagated to existing logical interconnects. For example, to propagate a newly added VLAN to a logical interconnect group uplink set to its existing logical interconnects, you must individually update each logical interconnect configuration from the logical interconnect group.

For each logical interconnect:

•You can define zero, one, or multiple uplink sets. If you do not define any uplink sets, the servers in the enclosure cannot connect to data center networks.

•A network can be a member of one uplink set only.

•An uplink set can contain only one Fibre Channel network.

•An uplink set can contain multiple Ethernet networks.

•You must specify Ethernet networks individually. The use of network sets in uplink sets is not supported for the following reasons:

◦

◦

The networking configuration is intended to be managed by users with a role of Network administrator. Because users with a role of Server administrator can create and edit network sets, allowing network sets to be members of uplink sets could result in server administrators changing the mapping of networks to uplink ports without the knowledge of the network administrator.

Because a network can be a member of more than one network set, allowing network sets to be members of uplink sets would make it more difficult to ensure that no single network is a member of more than one uplink set, especially as the network set configurations change over time.

124 Managing interconnects, logical interconnects, and logical interconnect groups