Link 8Link 7Link 6Link 5Link 4Link 3Link 2Link 1 /
Fabric
Port
Channel
Links on
Chassis
NoneNoneNoneNoneNoneNoneServer
slots2, 4,
6,and 8
Server
slots1, 3,
5,and 7
2links
NoneNoneNoneNoneServer
slots4 and
8
Server
slots3 and
7
Server
slots2 and
6
Server
slots1 and
5
4links
Server
slot8
Server
slot7
Server
slot6
Server
slot5
Server
slot4
Server
slot3
Server
slot2
Server
slot1
8links
N/AN/AN/AN/AN/AN/AN/AAll server
slots
Fabric
Port
Channel
Chassis with Two I/O Modules
Ifa chassis has two I/O modules, traffic from one I/O module goes to one of the fabric interconnects and
trafficfrom the other I/O module goes to the second fabric interconnect. You cannot connect two I/O modules
toa singlefabric interconnect.
Server Traffic PathFabric Interconnect Configured in vNIC
Servertraffic goes to fabric interconnect A. If A fails, the server
trafficdoes not fail over to B.
A
Allserver traffic goes to fabric interconnect B. If B fails, the
servertraffic does not fail over to A.
B
Allserver traffic goes to fabric interconnect A. If A fails, the
servertraffic fails over to B.
A-B
Allserver traffic goes to fabric interconnect B. If B fails, the
servertraffic fails over to A.
B-A
Guidelines for Pinning
Whenyou determine the optimal configuration for pin groups and pinning for an uplink port, consider the
estimatedbandwidth usage for the servers. If you know thatsome servers in thesystem will use a lot of
bandwidth,ensure that you pin these servers to different uplink ports.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
36 OL-25712-04
Traffic Management