Implementing L2PT in EXOS
In EXOS, the L2PT data-plane is implemented almost entirely in software.
When you attach a L2PT profile to a service interface, the following
ACL (Access Control List) rules are configured:
- An ACL rule is added to copy and drop all packets with a destination
address equal to the L2PT destination MAC address, and an outer VLAN (Virtual LAN) ID equal to the VLAN tag of the service.
- For each protocol that is tunneled on the service interface, an ACL rule
is added to copy and drop all packets with the same the destination address as the protocol. If
the protocol defines an EtherType, then the rule is also qualified with the EtherType.
- If any protocol is tunneled on the service interface, an ACL rule is
added to drop all packets received on the service interface with a destination address equal to
the L2PT destination MAC address.
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