Chapter 7. Configuring the Cisco 3012 InfiniBand to Ethernet gateway 119
Features and characteristics of the Ethernet gateway module include:
Two inward facing 4X (10G) InfiniBand ports
Six outward facing RJ45 10/100/1000 Ethernet ports with MDI/MDI-X support
Can be installed in any of the expansion slots of the SFS 3012
Hot-swappable
Jumbo frame support built in
– 9 K, Ethernet to InfiniBand
– 2 K, InfiniBand to Ethernet
Supports up to 32 VLANs, both static VLANs and 802.1Q trunking
Up to a six port static EtherChannel (also referred to as trunking or aggregation)
Some items not supported in this module
– Does not support Spanning-tree (uses proprietary methods to prevent loops)
– Does not support CDP (CDP is supported on the Ethernet management port of the
3012 itself, but not on the Ethernet gateway modules Ethernet ports)
Figure 7-3 shows a basic block flow of the Ethernet gateway module within the 3012, along
with how a bridge group is used to move packets from InfiniBand to Ethernet and vise versa.
Figure 7-3 Block flow of Ethernet gateway module
Some facts about the gateway module:
This module is considered a Target Channel Adapter (TCA) on the InfiniBand side. It
terminates an InfiniBand link and executes transport level functions.
This module operates in what is known as
cut-through mode, which provides for maximum
throughput of data.
6 Port Ethernet
Gateway Module
1
2
3
4
5
6
1
2
10/100/1000 Ethernet Gateway Ports - External
4x IB Gateway Ports - Internal
IB to Chassis
Slot 15
IB to Chassis
Slot 16
Ethernet to upstream
Ethernet network
Bridge
Group
1
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