v
All ports in a trunk group must belong to the same port group. For example, to
form an 8-port trunk select all eight ports from port group 0 or port group 1.
You cannot use ports from each port group for the trunk.
v
You can use from 1–8 ports in a port group to form a trunk.
v
All ports in a trunk must be running at the same speed.
v
All ports in a trunk must be configured for the same distance.
v
All ports in a trunk must have the same encryption, compression, QoS, and FEC
settings.
v
Trunk groups must be created between switches (or adapters in the case of
F_Port trunking). trunking is proprietary and is not supported on M-EOS or
third-party switches.
v
There must be a direct connection between participating switches.
Extension blade overview
The SX6 Extension blade is intended as an extension platform to support Fibre
Channel (FC), FICON, and IP based storage data flows. IBM Extension enables you
to use the existing IP wide area network (WAN) infrastructure to connect Fibre
Channel and IP fabrics. Extension supports applications such as remote data
replication (RDR), centralized backup, and data migration over very long distances
that are impractical or very costly using native Fibre Channel or IP connections.
Extension tunnels, built on a physical connection between two extension switches
or blades, allow Fibre Channel and IP I/O to pass through the IP WAN. The SX6
Extension blade can connect with an SX6 blade in another SAN512B-6 or with a
7840 Extension Switch.
Port and extension blades can an be mixed in in device slots 3–6 and 9–12, but
CR32-8 blades must be installed in slots 7 and 8. You can install a maximum of
four SX6 blades in the device.
The SX6 blade have the following external ports:
v
16 Fibre Channel (FC) SFP+ ports that support Fibre Channel Routing Services
and connection to FC devices for the IBM Extension feature. These ports support
32 Gbps transceivers operating at 8, 16, or 32 Gbps, 16 Gbps transceivers
operating at 4, 8, or 16 Gbps, and 10 Gbps transceivers operating at fixed 10
Gbps. FC ports can autonegotiate speeds with connecting ports.
v
16 10 or 1 GbE SFP+ and two 40 GbE QSFP ports. These ports allow connection
of blades to IP WANs and allow Fibre Channel and IP I/O to pass through the
IP WAN using extension tunnels. The 10 or 1 GbE ports operate at 10 Gbps or 1
Gbps fixed speeds with appropriate 10 Gbps or 1 Gbps transceivers installed.
The 40 GbE QSFP ports operate at 40 Gbps fixed speed.
Extension blades have the following LED indicators:
v
Green blade power LED
v
Amber blade status LED
v
Bicolor green/amber 40 GbE and 10 or 1 GbE port status LEDs
v
Bicolor green/amber FC port status LEDs
For details on interpreting LED operation, refer to “Interpreting extension blade
LEDs” on page 72.
All features are supported on this blade with no license requirements.
Chapter 7. Port and Extension Blades
107
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