Virtual Private LAN Service
168
FD 100/320Gbps NT and FX NT IHub Services Guide
3HH-11985-AAAA-TQZZA Issue: 13
Table 109 L2CP and LACP destination MAC address definitions
Notes
(1)
The Ether type and op-code can be anything.
(2)
LACP frames are L2CP frames with the indicated destination MAC address.
The m-VPLS passes the L2CP frames to the ISAM control plane for protocol
processing (typically RSTP/MSTP).
As a general rule, the v-VPLS processes frames as follows.
After being subjected to self-learning,
• special protocol frames (DHCP, ARP, OSPF, RIP, IS-IS, IGMP,...) are processed
according to corresponding protocol rules
• frames with a known Unicast MAC destination address are unicast forwarded to
the proper egress SAP
• frames with unknown Unicast MAC destination address are flooded to all v-VPLS
SAPs
• multicast frames with known Multicast IP destination address are forwarded to the
corresponding SAP list
Multicast frames with unknown Multicast IP address are:
• discarded if IGMP snooping is enabled on the v-VPLS
• flooded to all SAPs if IGMP snooping is disabled on the v-VPLS
Frames where the destination MAC address is the ISAM system MAC address are
eligible for VPRN processing (if applicable).
Frames with Broadcast MAC destination address are flooded to all SAPs
Note that frame forwarding may be subjected to some operator control (e.g. traffic
filtering, user-to-user communication permit/deny).
Also, self-learning is subjected to security restrictions; in particular, a MAC address
learned on the network side may not be relearned on the user side to avoid network
address hijacking.
Frame type Destination MAC address
L2CP pause frames
(1)
01-80-C2-00-00-01
(1)
L2CP frames L2CP frames include:
• 01-80-C2-00-00-00 through 01-80-C2-00-00-0F
• 01-80-C2-00-00-10
• 01-80-C2-00-00-20 through 01-80-C2-00-00-2F
LACP frames
(2)
01-80-C2-00-00-02
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