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Uplink Type 2
In the uplink type 2 topology (Figure 17), management and control traffic is switched out of the first two Ethernet
interfaces. Ethernet interfaces 1 and 2 are forwarding as an active-standby pair, just as in uplink type 1. However,
VSB data traffic is carried out of Ethernet interfaces 3 through 6. If vPC (or similar clustering) is used on the
upstream switches, the effective combined bandwidth is 5 Gbps for each Cisco Nexus 1100 Series VSA. This
uplink type is well suited when more non-VSM VSBs, such as Cisco NAM or VSG VSBs, are used, because there
is more bandwidth for the VSB data traffic to use.
Figure 17.
Uplink Type 2
Here, LACP PortChannel technology is used on the upstream switches to give each Cisco Nexus 1100 Series VSA
its own PortChannel across the two Cisco Nexus 5000 Series Switches. The configuration upstream would look
similar to the following.
Cisco Nexus 5000-1 and Nexus 5000-2 Configuration
interface ethernet 101/1/1, 101/1/2
switchport mode trunk
!-- multiple vlans trunked across link
switchport trunk allowed vlan 170,250
!—- only allow mgmt and control vlans
spanning-tree port type edge trunk
!-- enable portfast edge
interface ethernet 101/1/3, 101/1/4
switchport mode trunk
!-- multiple vlans trunked across link
switchport trunk allowed vlan 251
!-- only allow data vlan(s)
spanning-tree port type edge trunk
!-- enable portfast edge
channel-group 1110 mode active
!-- add interface to port-channel
interface port-channel 1110
!-- this is a unique vpc for N1110 Primary
