Functional description
MPR-e and MSS-1c User Manual 3DB19901EFAA Edition 01 167
3.10.12.2 — Reserved multicast addresses
Table 3.45 summarizes the actions taken for specific reserved multicast addresses. Frames
identified with these destination addresses are handled uniquely since they are designed for
Layer 2 Control Protocols.
The actions taken by the system can be:
• Discard - The system discards all ingress Ethernet frames and must not generate any
egress Ethernet Frame carrying the reserved multicast address.
• Forward - The system accepts all ingress Ethernet frames as standard multicast
frames and forwards them accordingly.
• Peer - The system acts as a peer of the connected device in the operation of the
relevant Layer 2 Control Protocol.
Table 3.45 — Actions taken for specific reserved multicast addresses
Reserved Multicast
Address
Function Action
01-80-C2-00-00-00 Bridge Group Address Forward
01-80-C2-00-00-01 Clause 31 (MAC Control) of IEEE 802.3 Flow-Control enabled: Peer
Flow-Control disabled:
Discard
01-80-C2-00-00-02 Clause 43 (Link Aggregation) and Clause
57 (OAM) of IEEE 802.3 (used by SSM
management)
Peer for Link Aggregation and
ESMC Discard for OAM
01-80-C2-00-00-03 IEEE 802.1X PAE address Discard
01-80-C2-00-00-04
- 01-80-C2-00-00-
0D
Reserved for future standardization Discard
01-80-C2-00-00-0E IEEE 802.1AB LLDP multicast address Discard
01-80-C2-00-00-0F Reserved for future standardization Discard
01-80-C2-00-00-10 All LANs Bridge Management Group
Address
Forward
01-80-C2-00-00-11
- 01-80-C2-00-00-
1F
Reserved Forward
01-80-C2-00-00-20 GMRP Address (Clause 10 of IEEE 802.1D) Forward
01-80-C2-00-00-21 GVRP Address (IEEE 802.1Q) Forward