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2. Enable protocol tunneling globally on the system.
CONFIGURATION mode
protocol-tunnel enable
3. Tunnel BPDUs the VLAN.
INTERFACE VLAN mode
protocol-tunnel stp
Specifying a Destination MAC Address for BPDUs
By default, the system uses a Dell Networking-unique MAC address for tunneling BPDUs. You can
configure another value.
To specify a destination MAC address for BPDUs, use the following command.
• Overwrite the BPDU with a user-specified destination MAC address when BPDUs are tunneled across
the provider network.
CONFIGURATION mode
protocol-tunnel destination-mac
The default is 01:01:e8:00:00:00
Setting Rate-Limit BPDUs
CAM space is allocated in sections called field processor (FP) blocks.
There are a total of 13 user-configurable FP blocks. The default number of blocks for L2PT is 0; you must
allocate at least one to enable BPDU rate-limiting.
To set the rate-lime BPDUs, use the following commands.
1. Create at least one FP group for L2PT.
CONFIGURATION mode
cam-acl l2acl
For details about this command, refer to CAM Allocation.
2. Save the running-config to the startup-config.
EXEC Privilege mode
copy running-config startup-config
3. Reload the system.
EXEC Privilege mode
reload
4. Set a maximum rate at which the BPDUs are processed for L2PT.
VLAN STACKING mode
protocol-tunnel rate-limit
The default is: no rate limiting.
834
Service Provider Bridging