NOTE:
In this scenario, specifying the MAC address of each provisioned switch is optional. If the
MAC address is not specified, the switch is termed a loose-provisioned switch. When the
commander configures a switch connected on a VSF link port, it will find the first provisioned switch
which matches the J-number, and push the configuration to the connected switch.
Port speed
The 2930 switches support only one port speed across all VSF ports in the stack. This port speed is configurable,
and is initially set automatically to the highest speed capable by the first VSF port that is configured.
Users can add ports of any speed to a VSF link. Only ports which match the configured VSF port speed will link
up in the VSF stack. Ports which do not match the VSF port speed will be in an error state, stating port speed
mismatch. This new feature allows users to migrate a stack based on 1G interconnects to a stack based on 10G
interconnects, and vice-versa, without having to reform the VSF stack from the beginning. The migration
procedure from 1G interconnects to 10G interconnects is:
In a stack with 1G interconnects, the user simply adds the 10G ports to each link. These ports should also be
physically interconnected, but they will not link up. Once all the configuration is complete and the interconnections
are made, the user changes the port speed using the command
vsf port-speed 10g
. This triggers a reboot of
the stack, and once the stack is reformed, it uses the configured 10G ports while the 1G ports will be in error
state. The 1G ports can now be disconnected and unconfigured.
NOTE:
In the case of transceiver ports, the speed is determined by the bay type. An SFP+ bay, if
configured, will set port speed to 10G. If an SFP transceiver is inserted into the bay, it will not link up
and be in error state.
VSF port LED front panel
On enabling the VSF link ports, the LED flashes solid orange state in the front panel. The user can recognize and
connect the VSF link ports. Solid orange LED state indicates:
• Port is reserved.
• Port is reserved but disabled.
• Post is reserved and not linked up. The port LED starts showing activity by flashing green when it links up to
the partner port, and successfully forms the VSF stack.
Selecting
Usr
in the front panel displays stack member information. For example:
• Port1 LED indicates status of Stack Member 1.
• Port2 LED indicates status of Stack Member 2.
Table 40: Mode LED states and indication
LED States
Indication
Slow flash green
Stack member number of the displaying chassis
Fast flash green
Stack member number of the commander chassis.
On orange
Stack member is faulty or in a booting condition.
Off
Stack member does not exist in the stack.
Chapter 20 Virtual Switching Framework (VSF)
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