932 | Service Provider Bridging
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Specify a Destination MAC Address for BPDUs
By default, FTOS uses a Dell Force10-unique MAC address for tunneling BPDUs. You can configure
another value.
Rate-limit BPDUs on the E-Series
In order to rewrite the destination MAC address on BPDUs, they are forwarded to the RPM. You can
rate-limit BPDUs to protect the RPM, in which case the system drops BPDUs when the threshold is
reached.
Rate-limit BPDUs on the C-Series and S-Series
CAM space is allocated in sections called Field Processor (FP) blocks.
There are total 13 user-configurable FP blocks on the C-Series and S-Series. The default number of blocks
for L2PT is 0; you must allocate at least one to enable BPDU rate-limiting.
Task Command Syntax Command Mode
Overwrite the BPDU with a user-specified destination
MAC address when BPDUs are tunneled across the
provider network.
Default: 01:01:e8:00:00:00
protocol-tunnel destination-mac
CONFIGURATION
Task Command Syntax Command Mode
Set a maximum rate at which the RPM will process BPDUs for
L2PT.
Default: 75 pps
E-Series Range: 75 to 3000 pps
protocol-tunnel rate-limit
CONFIGURATION
Step Task Command Syntax Command Mode
1 Create at least one FP group for L2PT. See
CAM Allocation on page 280 for details on
this command.
cam-acl l2acl
CONFIGURATION
2 Save the running-config to the startup-config.
copy running-config startup-config
EXEC Privilege
3 Reload the system. reload
EXEC Privilege
4 Set a maximum rate at which the RPM will
process BPDUs for L2PT.
Default: no rate limiting
C-Series Range: 64 to 640 kbps
S-Series Range: 64 to 320 kbps
protocol-tunnel rate-limit
VLAN STACKING
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