Nokia 7302 Manual page 199

FD 100/320Gbps NT and FX NT IHub Services Guide
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The configured mode shall be used unless (on a per-SAP basis) a BPDU of a
different format is detected, in which case the mode shall fall back to STP (IEEE
802.1D-1998). See
configure>service>vpls <service-id> stp mode {rstp | comp-dot1w | dot1w |
mstp| mstp-comp-2003 | pmstp}
Default: rstp
Bridge Priority
The bridge-priority command is used to populate the priority portion of the bridge
ID field within outbound BPDUs (the most significant 4 bits of the bridge ID). It is also
used as part of the decision process when determining the best BPDU between
messages received and sent. When running MSTP, this is the bridge priority used for
the CIST.
All values will be truncated to multiples of 4096, conforming with IEEE 802.1t and
802.1D-2004.
configure>service>vpls service-id# stp priority bridge-priority
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Max Age
The max-age command indicates how many hops a BPDU can traverse the network
starting from the root bridge. The message age field in a BPDU transmitted by the
root bridge is initialized to 0. Each other bridge will take the message_age value from
BPDUs received on their root port and increment this value by 1. The message_age
thus reflects the distance from the root bridge. BPDUs with a message age
exceeding max-age are ignored.
STP uses the max-age value configured in the root bridge. This value is propagated
to the other bridges via the BPDUs.
The default value of max-age is 20. This parameter can be modified within a range
of 6 to 40, limited by the standard STP parameter interaction formulae.
Issue: 13
mstp-comp-2003
Compliant with the Multiple Spanning Tree Protocol specified in IEEE
802.1Q-REV/D3.0-04/2005 but with some changes to make it backwards
compatible to 802.1Q 2003 edition and IEEE 802.1w.
pmstp
Provider MSTP mode is implemented according to 802.1ad (provider bridges)
The provider functionality is implemented and the provider edge functionality is
not.
"Spanning Tree Operating Modes"
Range: 1 to 65535
Default: 32768
Restore Default: no priority
3HH-11985-AAAA-TQZZA
Virtual Private LAN Service
for details on these modes.
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