Users Guide
• vman-qos-dual-fp: mark the S-Tag dot1p and queue the frame according to the S-Tag dot1p. This method requires twice as
many CAM entries as vman-qos and FP blocks in multiples of 2.
The default is: 0 FP blocks for vman-qos and vman-qos-dual-fp.
2 The new CAM conguration is stored in NVRAM and takes eect only after a save and reload.
EXEC Privilege mode
copy running-config startup-config reload
3 Map C-Tag dot1p values to a S-Tag dot1p value.
INTERFACE mode
vlan-stack dot1p-mapping c-tag-dot1p values sp-tag-dot1p value
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).
946
Service Provider Bridging