IBM 4002-Y2A, Installation And User Manual

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FCX648SHPOE Switch# clear mac-address 000d.cb80.00d0
Syntax: clear mac-address <mac-address> | ethernet <port-num> | vlan <number>
If you enter the clear mac-address command without any parameters, the software
removes all MAC entries.
Use the < mac-address > parameter to remove a specified MAC address from all
VLANs. Specify the MAC address in the following format: HHHH.HHHH.HHHH.
Use the ethernet < port-num > parameter to remove all MAC addresses for a
specified Ethernet port.
Use the vlan < number > parameter to remove all MAC addresses for a specified
VLAN.
Displaying y-series CPU usage
You can display the percentage of the y-series CPU in use. To do so, enter the
show cpu command at any level of the CLI:
FCX648SHPOE Switch# show cpu
31 percent busy, from 3248 sec ago
1
sec avg: 10 percent busy
5 sec avg: 10 percent busy
60 sec avg: 10 percent busy
300 sec avg: 10 percent busy
Syntax: show cpu
Hardware maintenance schedule
The y-series switch hardware components require minimal maintenance. It is
recommended that you clean the fiber-optic connectors on a fiber-optic port and
the connected fiber cable each time you disconnect the cable.
You can replace the copper and fiber optic modules (SFPs or mini-GBICs).
Replacing a copper or fiber optic module
You can remove an SFP from a slot and replace it with a new one while the
y-series switch is powered on and running.
This section provides information about the following tasks:
v Removing a copper or fiber optic module
v
Installing a new copper or fiber optic module
v Cabling a fiber optic module
Removing a copper or fiber optic module
You can remove a copper or fiber SFP (also called a mini-GBIC) from a slot while
the y-series switch is powered on and running.
While removing a copper or fiber optic module, be sure to wear an ESD wrist
strap with a plug for connection to the ESD connector on the y-series switch.
Chapter 4. Managing y-series Ethernet switches
47