04-15-2005 12:32 AM - edited 03-03-2019 09:18 AM
i configure cisco7613 that use different vlans to service different group of users
but when i use command "show mac-address dynamic vlan **" try to show how many dynamic mac address have been learn within specific vlan , i found none , there is no any mac address existed
i use command " clear mac-address dynamic" to clear all dynamic mac-address , then i use command "show mac-address dynamic vlan **" again , i found the dynamic mac address appear
but those dynamic mac address aging time is incresing untile 300 second , then they disapper from mac address table again
there is no any complain about network access from users , but why the aging time of these mac address not refreshed
Anyone met this problems before ?
04-15-2005 12:49 AM
The mac adresses will only age-out if they are idle for 300s. This mechanism keeps the mac-adress table up to date and still relatively small.
At the moment when a node again starts to send traffic the mac-entry is re-learned.
This is how it works in all bridges & switches, including equipment from other vendors.
Regards,
Leo
04-15-2005 01:04 AM
Hi , Leo :
thanks for your reply ,
the true is those mac address should not age-out , because user traffic coming through device all the time , so those mac-entry should be refreshed
04-15-2005 01:09 AM
Please post the details about the 7600.
IOS version ?
What hardware modules?
04-15-2005 01:16 AM
Hi ,
this is ios version:
s72033-pk9sv-mz.122-17d.SXB4
module : super720/pfc3a/msfc3a
ws-x6724,ws-x6516
04-15-2005 01:55 AM
Checked the bug toolkit:
CSCec37294 Const2: sh mac-address table doesnt list the system mac-address
Please check if this could be related to your issue.
An IOS upgrade should do no harm anyway!
Regards,
Leo
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: