Deployment Guide

EXEC PRIVILEGE
When the reload completes, the base-module ports comes up in 4x10GbE (quad) mode. The switch functions in standalone mode but
retains the running and startup conguration that was last synchronized by the master switch while it operated as a stack unit.
Conguring the Uplink Speed of Interfaces as 40
Gigabit Ethernet
You can congure the I/O Aggregator switch in standalone, VLT, and stack modes to operate with an uplink speed of 40 Gigabit Ethernet
per second. You can use the chassis management controller (CMC) interface to access the switch and specify the 40 GbE QSFP+ module
ports to function in 40 GbE mode after the subsequent reload operation. By default, these QSFP+ modules function in 10GbE mode.
When you congure the native mode to be 40 GbE, the CMC sends a notication to the Aggregator to set the default internal working of
all of the ports to be 40 GbE after the switch reloads. After you set this conguration, you must enter the reboot command (not pressing
the Reset button, which causes the factory default settings to be applied when the device comes up online) from the CMC for the uplink
speed to be eective.
This functionality to set the uplink speed is available from the CLI or the CMC interface when the Aggregator functions as a simple MUX or
a VLT node, with all of the uplink interfaces congured to be member links in the same LAG bundle. You cannot congure the uplink speed
to be set as 40 GbE if the Aggregator functions in programmable MUX mode with multiple uplink LAG interfaces or in stacking mode. This
is because CMC is not involved with the conguration of parameters when the Aggregator operates in either of these modes, with the
uplink interfaces being part of dierent LAG bundles.
After you restart the Aggregator, the 4-Port 10 GbE Ethernet modules or the 40GbE QSFP+ port that is split into four 10GbE SFP+ ports
cannot be congured to be part of the same uplink LAG bundle that is set up with the uplink speed of 40 GbE. In such a condition, you can
perform a hot-swap of the 4-port 10 GbE Flex IO modules with a 2-port 40 GbE Flex IO module, which causes the module to become a
part of the LAG bundle that is set up with 40 GbE as the uplink speed without another reboot. The Aggregator supports native 40 GbE
mode for QSFP ports only in simple MUX mode and stacking mode of operation. In stacking mode, the base 40 GbE module ports are used
for stacking and native 40 GbE uplink speed is enabled for only the QSFP+ ports on the optional 2-Port 40-Gigabit Ethernet QSFP+ FlexIO
modules.
The following table describes the various speeds in dierent Aggregator modes. If a 4x10G SFP+ or a 4x10BASE-T module is plugged in and
40 GbE mode is congured, it is in error-disabled state.
Table 37. Speeds in
Dierent Aggregator Modes
Module Type Standalone 10G
mode
Standalone 40G
Mode
Stacking 10G
Mode
Stacking 40G
mode
VLT 10G Mode VLT 40G Mode
Base module 10G 40G 40G (HiGig) 40G
(HiGig)
40G (Native) 40G
(Native)
Optional module
(2 40GbE)
10G 40G 10G 40G 10G 40G
Optional modules
(4 10GbE)
10G Error 10G Error 10G Error
FC module 10G 10G 10G 10G 10G 10G
To congure the uplink speed of the member interfaces in a LAG bundle to be 40 GbE Ethernet per second for the Aggregator that
operates in standalone, stacking, or VLT mode, perform the following steps:
Specify the uplink speed as 40 GbE. By default, the uplink speed of the LAG bundle is set as 10 GbE. You cannot congure the uplink
speed if the Aggregator operates in programmable MUX mode. The stack-unit unit-number iom-mode [stack |
standalone | vlt]
40G command is available in the CMC interface and the CLI interface.
CONFIGURATION
Stacking
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