Service Manual
Separate C-Tag values by commas. Dashed ranges are permitted.
Dynamic Mode CoS overrides any Layer 2 QoS conguration in case of conicts.
NOTE: Because dot1p-mapping marks
and
queues packets, the only remaining applicable QoS conguration is rate
metering. You may use Rate Shaping or Rate Policing.
Layer 2 Protocol Tunneling
Spanning tree bridge protocol data units (BPDUs) use a reserved destination MAC address called the bridge group address, which is
01-80-C2-00-00-00.
Only spanning-tree bridges on the local area network (LAN) recognize this address and process the BPDU. When you use VLAN
stacking to connect physically separate regions of a network, BPDUs attempting to traverse the intermediate network might be
consumed and later dropped because the intermediate network itself might be using spanning tree (shown in the following
illustration).
Figure 109. VLAN Stacking without L2PT
714
Service Provider Bridging