Avaya P580 - Manual (Page 250)

6-20 Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version v5.3.1
Chapter
Persistence The persistence of the entry in the table can be set on all
learned entries:
• Permanent - The address is not aged out of the
table.
• Invalid - This entry is cleared from the table each
time the switch resets.
• Ageout - Address is cleared from the address
forwarding table when the timeout interval
expires. This is the state of all entries dynamically
learned by the switch. It ensures that MAC
addresses that are not active on the network do not
remain in the switch address forwarding table
indefinitely.
Note: If you create a static, filtered MAC address and
set Persistence to Ageout, the switch does not
filter the MAC address. The switch continues to
forward frames that have the MAC address for a
source address or destination address. To correct
this, set Persistence to Permanent.
Status The status of the address entry.
Options include:
• Learned
• Management
• Self AFT Self Entries:
• 01:80:C2:00:00:00 - 01:80:c2:00:00:0F - 802.1D
reserved addresses, the first entry is the Spanning
Tree BPDU destination address.
• 09:00:4E:00:01:02 - 3Com Vlan Trunk (VLT)
control frame address. Used for Spanning Tree
blocked ports that are in 3Com tagging mode and
connected to a port on the other side of a
connection that is blocked by Spanning Tree.
• 01:00:0C:CC:CC:CC - Cisco control frame. Used to
synchronize VLAN membership across switches
(VTPs) or router information between routers
(CDPs). The switch sends them to the CPU, the
CPU will set the BPDU bit when transmitting out a
port trunking ISL.
• 01:00:0C:DD:DD:DD - If Cisco Group Management
Protocol (CGMP) is enabled, the switch may listen
to gather multicast group information
Table 6-6. Address Forwarding Table Parameters continued
Parameter Defines the...