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Topology Examples
The following topology examples use the premise of connecting the Cisco Nexus 1100 Series directly to Cisco
Nexus 2000 Series Fabric Extenders on a Cisco Nexus 5000 Series parent switch. The vPC technology on the
Cisco Nexus 5000 and 7000 Series Switches (or any other switch that supports multichassis EtherChannel
technology) can be used to increase bandwidth utilization on uplink types that support Link Aggregation Control
Protocol (LACP) PortChannels.
This section discusses the four uplink types in the context of connection to upstream switches that use Cisco
Nexus 2000 Series Fabric Extenders. Note that this discussion can also apply when you connect to other upstream
switches.
Uplink Type 1
In the uplink type 1 topology (Figure 16), all traffic (management, control, and VSB data traffic) is switched out at
an effective bandwidth of 1 Gbps. Both ports on the Cisco Nexus 1100 Series, Ethernet interfaces 1 and 2, are
teamed to form an active-standby pair. This uplink type is simplistic and does not require any PortChannel or LACP
configuration on the upstream switches.
Figure 16.
Uplink Type 1
The upstream Cisco Nexus 5000 Series configuration would look similar to the following for the access ports to
which the Cisco Nexus 1100 Series connects.
Cisco Nexus 5000-1 and Nexus 5000-2 Configuration
interface ethernet 101/1/1-2
switchport mode trunk
!-- multiple vlans trunked across link
switchport trunk allowed vlan 170,250-251 !—only allow mgmt, control and data
vlans
spanning-tree port type edge trunk
!-- enable portfast edge
