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Highlighted
Cisco Employee

Software Mac learning

Hi, everyone

 

I compared two outputs between ASR9K 6.2.3 and ASR9k 5.3.3 by command [show l2vpn forwarding bridge-domain mac-address detail location -]

and find slight difference.

 

output from 5.3.3

RP/0/RSP0/CPU0:PE1#show l2vpn forwarding bridge-domain mac-address detail location 0/3/CPU0

 

Bridge-domain name: L2VPN:V201, id: 0, state: up
MAC learning: enabled
MAC port down flush: enabled
Flooding:
Broadcast & Multicast: enabled
Unknown unicast: enabled

<snip>

----------

 

output from 6.2.3

RP/0/RSP0/CPU0:PE1#show l2vpn forwarding bridge-domain mac-address detail location 0/3/CPU0

 

Bridge-domain name: L2VPN:V201, id: 0, state: up
MAC learning: enabled
Software MAC learning: disabled
MAC port down flush: enabled
Flooding:
Broadcast & Multicast: enabled
Unknown unicast: enabled

<snip>

 

why there is [Software MAC learning: disabled] in 6.2.3, is it enabled by any commands? or it is a version difference between 6.2.3 and 5.3.3?

4 REPLIES 4
Highlighted
VIP Mentor

Re: Software Mac learning

Hello,

 

can you enable mac learning under the bridge domain ?

 

ASR9K# configure terminal
ASR9K(config)# bridge-domain x
ASR9K(config-bdomain)# mac learning

Highlighted
Cisco Employee

Re: Software Mac learning

Hi, Georg

Thanks for your reply.
[ASR9K(config)# bridge-domain x] seems not working on my machine.

actually I am not trying to enable Software MAC learning:, instead I am trying figure out
why [Software MAC learning: disabled] appears in 6.2.3, however I can't find it in 5.3.3 by using the same command.
Highlighted
VIP Mentor

Re: Software Mac learning

Hello,

 

I am using 6.1.3 ,it is enabled by default in that version. Possibly they have changed the default to 'disabled' after that. What do you get at the below prompt ?

 

RP/0/RSP0/CPU0:PE1(config)#l2vpn
RP/0/RSP0/CPU0:PE1(config-l2vpn)#bridge group L2VPNBGROUP
RP/0/RSP0/CPU0:PE1(config-l2vpn-bg)#bridge-domain L2VPNBDOMAIN
RP/0/RSP0/CPU0:PE1(config-l2vpn-bg-bd)#mac learning disable

Highlighted
Cisco Employee

Re: Software Mac learning

Hi, Georg
Even by performing the prompt on both sides still no change happens.
Do you have any idea how could I confirm that [Software MAC learning: disabled] starts to appear from which release? actually I am comparing these 2 releases and trying to find out differences.