broadcast storm … 5-2 enabling MSTP … 5-38

MSTP

See spanning-tree, 802.1s VLAN effect on … 2-38

spanning-tree root-history5-47

spanning-tree, 802.1s … 5-2,5-6

802.1D and 802.1w connections … 5-14 802.1D as a region … 5-13,5-14

802.1D connection requirement … 5-24

802.1Q VLANs … 5-12

802.1s standard-compliant5-6

802.1w as a region … 5-13 active path … 5-10 active paths … 5-14 bandwidth loss … 5-12 benefit … 5-6

blocked traffic … 5-11

boundary port, region … 5-13,5-14 boundary port, VLAN membership … 5-11 BPDU … 5-11,5-17,5-21,5-22,5-24 BPDU requirement … 5-14

BPDU, function … 5-13 bridge … 5-13

bridge, designated for region … 5-13 caution … 5-6,5-9

CIST … 5-7,5-13,5-14

CIST per-port hello time … 5-14 CIST root … 5-24

common and internal spanning tree See CIST.

common spanning tree See CST.

compatibility … 5-15 compatibility mode … 5-21 configuration … 5-19,5-38 configuration identifier … 5-13 configuration steps … 5-17 configuration, BPDU port protection … 5-26 configuration, exchanging … 5-38 configuration, MST instance … 5-32 configuration, MSTI per-port5-35 configuration, port … 5-22

CST … 5-7,5-11,5-13

CST and legacy devices … 5-11 CST, view status … 5-40,5-41 default configuration … 5-9

designated bridge … 5-11,5-13 designated port … 5-11 disabling MSTP … 5-38

display statistics and configuration … 5-40 dynamic VLANs, disallowed … 5-8

edge port … 5-23 enabling a region … 5-38 enabling MSTP … 5-38

example of multiple topologies … 5-10 fault tolerance … 5-6

force protocol version … 5-15force-version5-24 forwarding paths … 5-15 forwarding state … 5-23

frame duplication and misordering … 5-15 general operation … 5-2,5-6

GVRP … 5-8,5-15

hello-time, CIST root, propagated … 5-14,5-22hello-time, override … 5-14

hello-time, propagated … 5-14hop-count decremented … 5-21 instance … 5-2,5-14,5-18 instance, forwarding topology … 5-15 instance, IST … 5-8

instance, type … 5-8internal spanning tree

See IST.

interoperating with 802.1D and 802.1w … 5-13 IST … 5-8

IST instance … 5-8,5-32 IST root … 5-8,5-10,5-13 IST, defined … 5-13

IST, dynamic VLAN … 5-15 IST, root switch … 5-13

IST, switch membership … 5-13 IST, VLAN membership … 5-8 legacy devices and the CST … 5-11 legacy STP and RSTP … 5-11legacy-mode5-22legacy-path-cost5-22maximum-age5-21

mesh environment … 5-6,5-15 MIB … 5-48

MST region See region.

MSTI … 5-8,5-14 MSTI root … 5-10 MSTI, view status … 5-42

4 – Index