Qualified Learning VPLS Routing Instance Behavior

The following tables summarize the VPLS routing instance behavior regarding qualified MAC learning.

Table 1 summarizes the scenario when vlan-id all is not configured on a routing instance. All VLAN identifiers specified on the logical interfaces are included in the routing instance.

Table 1: VPLS Routing Instance Behavior When vlan-id all Is Not Configured
Configured tags on Logical Interface
Incoming tags	Outer tag only	Outer tag range only	Outer and inner tags with VLAN-map (no VLAN-id on the routing-instance)	Outer and inner tag only	Outer tag and inner range tag with VLAN-map	Outer tag and inner range	LSI
No tag	Drop (only works with native VLAN-id)	Drop (only works with native VLAN-id)	Drop	Drop	Drop	Drop	Learning on VLAN 4096
1 tag	OK	OK	Drop	Drop	Drop	Drop	Learning on outer tag
1 tag mismatch	Drop	Drop	Drop	Drop	Drop	Drop	Learning on outer tag
2 tags	OK	OK	OK (swap/pop-swap: MAC learned on vpls db but no VLAN-id)	OK (MAC learned on VPLS database if no VLAN-id on routing instance; MAC learning on routing instance VLAN-id otherwise)	OK (MAC learning on outer VLAN after VLAN map)	OK (MAC learning on outer VLAN)	Learning on outer tag
2 tags mismatch	Drop	Drop	Drop	Drop	Drop	Drop	Learning on outer tag
> 2 tags	OK	OK	Same as with 2 tags	Same as with 2 tags	Same as with 2 tags	Same as with 2 tags	Learning on outer tag

Table 2 summarizes the scenario when vlan-id all is configured on a routing instance. All VLAN identifiers specified on the logical interfaces are included in the routing instance.

Table 2: VPLS Routing Instance Behavior when vlan-id all is configured
Configured tags on Logical Interface
Incoming tags	Outer tag only	Outer tag range only	Outer and inner tags with VLAN-map	Outer and inner tag	Outer tag and inner range tag with VLAN-map	Outer tag and inner range	LSI
No tag	Drop	Drop	Invalid configuration	Drop	Invalid configuration	Drop	Learning on VLAN 4096
1 tag	OK, learning on the tag	OK, learning on the tag	Invalid configuration	Drop	Invalid configuration	Drop	Learning on the tag
1 tag mismatch	Drop	Drop	Invalid configuration	Drop	Invalid configuration	Drop	Learning on the tag
2 tags	OK, learning on the tag	OK, learning on the tag	Invalid configuration	Pop outer tag, MAC learning on inner tag	Invalid configuration	Pop, MAC learning on inner tag	Learning on the outer tag
2 tags mismatch	Drop	Drop	Invalid configuration	Drop	Invalid configuration	Drop	Learning on the outer tag
> 2 tags	OK, learning on the tag	OK, learning on the tag	Invalid configuration	Pop outer tag, learning on the second tag	Invalid configuration	Pop, learning on the second tag	Learning on the outer tag

Table 3 summarizes the scenario when vlan-id inner-all is configured on a routing instance, but deep-vlan-qualified-learning vlan_tag_number is not configured on the logical interface .

Table 3: VPLS Routing Instance and Logical Interface Behavior When vlan-id inner-all Is Configured
Configured tags on Logical Interface
Incoming tags	Outer tag only	Outer tag range only	Outer and inner tags with VLAN-map	Outer and inner tags only	Outer tag and inner range tag with VLAN-map	Outer tag and inner tag range	LSI
No tag	Drop (OK with native VLAN-id)	Drop	Drop	Drop	Drop	Drop	Learning on VLAN 4096
1 tag	OK (MAC learning on VLAN 4096)	OK (MAC learning on VLAN 4096)	Drop	Drop	Drop	Drop	Learning on VLAN 4096
1 tag mismatch	Drop	Drop	Drop	Drop	Drop	Drop	Learning on VLAN 4096
2 tags	OK (MAC learning on the inner VLAN)	OK (MAC learning on the inner VLAN)	OK (MAC learning on inner VLAN after VLAN-map operation	OK (MAC learning on the inner VLAN). No implicit popping of outer tag.	OK (MAC learning on the inner VLAN after VLAN-map operation).	OK (MAC learning on inner VLAN). No implicit popping of outer tag.	Learning on the inner tag
2 tags mismatch	Drop	Drop	Drop	Drop	Drop	Drop	Learning on the inner tag
> 2 tags	OK (MAC learning on the 2nd VLAN tag)	OK (MAC learning on the 2nd VLAN tag)	OK (MAC learning on the 2nd VLAN after VLAN-map operation).	OK (MAC learning on the 2nd incoming VLAN). No popping of outer tag.	OK (MAC learning on the 2nd VLAN after VLAN-map operation)	OK (MAC learning on the 2nd incoming VLAN). No popping of outer tag.	Learning on the 2nd tag

Table 4 summarizes the scenario when vlan-id inner-all is configured on a routing instance and deep-vlan-qualified-learning 3 is configured on the logical interface .

Table 4: VPLS Routing Instance and Logical Interface Behavior When vlan-id inner-all and deep-vlan-qualified-learning Is Configured
Configured tags on Logical Interface
Incoming tags	Outer tag only	Outer tag range only	Outer and inner tags with VLAN-map	Outer and inner tags only	Outer tag and inner range tag with VLAN-map	Outer tag and inner tag range
No tag	Invalid configuration	Invalid configuration	Drop	Invalid configuration	Invalid configuration	Invalid configuration
1 tag	Invalid configuration	Invalid configuration	Drop	Invalid configuration	Invalid configuration	Invalid configuration
1 tag mismatch	Invalid configuration	Invalid configuration	Drop	Invalid configuration	Invalid configuration	Invalid configuration
2 tags	Invalid configuration	Invalid configuration	OK (learning on VLAN 4096)	OK (learning on VLAN 4096)	Invalid configuration	Invalid configuration
2 tags mismatch	Invalid configuration	Invalid configuration	Drop	Invalid configuration	Invalid configuration	Invalid configuration
3 tags	Invalid configuration	Invalid configuration	OK (MAC learning on innermost VLAN)	OK (MAC learning on innermost VLAN)	Invalid configuration	Invalid configuration

Qualified Learning VPLS Routing Instance Behavior

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