limit-learning doesn't work on stack with EXOS 15.3.1.4
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‎01-18-2017 12:26 PM
Hello, everybody!
I have a mixed stack of x440 and x460 g1 switches.
I want to configure limit-learning for a certain port.
I say: configure port 3:9 vlan v12 limit-learning 1 action stop-learning
I connect laptop to this port and get an IP. Then I change to another laptop ang get an IP again!
What am I doing wrong?
show fdb port 3:9 show that MACs are changing (and these are laptops MACs)
show port 3:9 info detail show:
MAC-limit = 1, Action = stop-learning.
But nothing happens! I connect third laptop and it gets IP too.
When I say "configure port 3:9 vlan v12 lock-learning" it blocks the port.
Could you please help me with this issue?
Many thanks in advance,
Ilya
I have a mixed stack of x440 and x460 g1 switches.
I want to configure limit-learning for a certain port.
I say: configure port 3:9 vlan v12 limit-learning 1 action stop-learning
I connect laptop to this port and get an IP. Then I change to another laptop ang get an IP again!
What am I doing wrong?
show fdb port 3:9 show that MACs are changing (and these are laptops MACs)
show port 3:9 info detail show:
MAC-limit = 1, Action = stop-learning.
But nothing happens! I connect third laptop and it gets IP too.
When I say "configure port 3:9 vlan v12 lock-learning" it blocks the port.
Could you please help me with this issue?
Many thanks in advance,
Ilya
11 REPLIES 11
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‎01-19-2017 10:30 AM
Evening, everyone!
I've tried to implement such a configuration on my 16.2 stack:
enable mac-locking
enable mac-locking ports 5:17
configure mac-locking ports 5:17 first-arrival limit-learning 1
configure mac-locking ports 5:17 first-arrival link-down-action retain-macs
configure mac-locking ports 5:17 log violation on
configure mac-locking ports 5:17 learn-limit-action disable-port
Everything works as expected, but I want to ensure that it will keep working after rebooting the switch!
Many thanks to all participants of this discussion!!!!
I've tried to implement such a configuration on my 16.2 stack:
enable mac-locking
enable mac-locking ports 5:17
configure mac-locking ports 5:17 first-arrival limit-learning 1
configure mac-locking ports 5:17 first-arrival link-down-action retain-macs
configure mac-locking ports 5:17 log violation on
configure mac-locking ports 5:17 learn-limit-action disable-port
Everything works as expected, but I want to ensure that it will keep working after rebooting the switch!
Many thanks to all participants of this discussion!!!!
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‎01-18-2017 02:16 PM
Hello Ilya,
You stacks are running XOS image affected with next CR's:
xos0057211 - Traffic gets forwarded for blackholed MAC address when limit learning enabled.
xos0054065 - Switch fails to recognize previously learnt MAC Addresses when configuring the features - MAC Lockdown and Limit Learning
Updating EXOS to the latest 15.3 patch should solve the issue.
Best Regards,
Nikolay
You stacks are running XOS image affected with next CR's:
xos0057211 - Traffic gets forwarded for blackholed MAC address when limit learning enabled.
xos0054065 - Switch fails to recognize previously learnt MAC Addresses when configuring the features - MAC Lockdown and Limit Learning
Updating EXOS to the latest 15.3 patch should solve the issue.
Best Regards,
Nikolay
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‎01-18-2017 02:16 PM
Ya pryamo hochu dva laika postavit, potomu cho eto desyatiy, navernoe, bag, na kotoriy ya natikayus, pomipo obnarujennih mnoy lichno i podtverzhdenniy mezhdunarodnim TACom. Zaprosil u distukov poslednyuyu zaplatku...
Zbazibo.
Zbazibo.
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‎01-18-2017 01:41 PM
