Administrator Guide

Layer 2
This chapter describes commands to configure Layer 2 features.
This chapter contains the following sections:
● MAC Addressing Commands
● Virtual LAN (VLAN) Commands
● Far-End Failure Detection (FEFD)
Topics:
• MAC Addressing Commands
• Virtual LAN (VLAN) Commands
• Far-End Failure Detection (FEFD)
MAC Addressing Commands
The following commands are related to configuring, managing, and viewing MAC addresses.
clear mac-address-table
Clear the MAC address table of all MAC address learned dynamically.
C9000 Series
Syntax
clear mac-address-table {dynamic | sticky }{address mac-address | all |
interface interface | vlan vlan-id}
Parameters
dynamic Enter the keyword dynamic to specify dynamically-learned MAC addresses.
sticky Enter the keyword sticky to specify sticky MAC addresses.
address mac-
address
Enter the keyword address then a MAC address in nn:nn:nn:nn:nn:nn format.
all Enter the keyword all to delete all MAC address entries in the MAC address table.
interface
interface
Enter the following keywords and slot/port or number information:
● For a Port Channel interface, enter the keywords port-channel then a
number. The range is from 1 to 128.
● For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
● For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the
slot/port information.
● For a port extender Gigabit Ethernet interface, enter the keyword peGigE then
the pe-id / stack-unit / port-id information. The pe-id range is from 0 to 255;
the stack-unit unit-number range is from 0 to 7; and the port-id range is from 1
to 48.
● For a port extender 10-Gigabit Ethernet interface, enter the keyword
peTenGigE then the pe-id / stack-unit / port-id information. The pe-id range
is from 0 to 255; the stack-unit unit-number range is from 0 to 7; and the port-
id range is 25 to 28 or 49 to 52 depending on the PE.
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