Uplink Type 3 - Cisco Nexus 1110-S Deployment Manual

vpc 1110
interface ethernet 101/1/5, 101/1/6
switchport mode trunk
switchport trunk allowed vlan 251
spanning-tree port type edge trunk
channel-group 1011 mode active
interface port-channel 1011
vpc 1011

Uplink Type 3

Uplink type 3 (Figure 18) is physically identical to uplink type 2 because it uses all the Ethernet interfaces available.
The difference is in the way that the traffic is carried across these interfaces. In this topology, management 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 the other uplink types. However, both control and 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 multiple VSM
VSBs are used because it allows the VSM traffic to be shared with other VSBs. This type also provides the
flexibility to add either VSM VSBs or different additional VSBs in the future while increasing bandwidth utilization for
all VSBs.
Figure 18.
Here, LACP PortChannel technology is used on the upstream switches to give each Cisco Nexus 1100 Series its
own PortChannel across the two Cisco Nexus 5000 Series Switches. The configuration upstream would look
similar to the following.
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Uplink Type 3
!-- multiple vlans trunked across link
!-- only allow data vlan(s)
!-- enable portfast edge
!-- add interface to port-channel
!-- this is a unique vpc for N1110 Secondary
Page 20 of 39