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User’s Manual of IGSW-2840
148
designed to support independent spanning trees based on VLAN groups. Using multiple spanning trees can provide multiple
forwarding paths and enable load balancing. One or more VLANs can be grouped into a Multiple Spanning Tree Instance
(MSTI). MSTP builds a separate Multiple Spanning Tree (MST) for each instance to maintain connectivity among each of the
assigned VLAN groups. MSTP then builds a Internal Spanning Tree (IST) for the Region containing all commonly configured
MSTP bridges.
An MST Region consists of a group of interconnected bridges that have the same MST Configuration Identifiers (including the
Region Name, Revision Level and Configuration Digest – see “
Configuring Multiple Spanning Trees
”). An MST Region may
contain multiple MSTP Instances. An
Internal Spanning Tree (IST)
is used to connect all the MSTP switches within an MST
region. A
Common Spanning Tree (CST)
interconnects all adjacent MST Regions, and acts as a virtual bridge node for
communications with STP or RSTP nodes in the global network.
MSTP connects all bridges and LAN segments with a single
Common and Internal Spanning Tree (CIST)
. The CIST is formed
as a result of the running spanning tree algorithm between switches that support the STP, RSTP, MSTP protocols.
Summary of Contents for IGSW-2840
Page 23: ...User s Manual of IGSW 2840 23 A 2 10 100Mbps 10 100Base TX 665 APPENDEX B GLOSSARY 667 ...
Page 110: ...User s Manual of IGSW 2840 110 Figure 4 3 14 SNMPv3 View Edit screenshot ...
Page 119: ...User s Manual of IGSW 2840 119 Figure 4 4 7 Mirror Port Configuration screenshot ...
Page 205: ...User s Manual of IGSW 2840 205 Multicast Service Multicast flooding ...
Page 216: ...User s Manual of IGSW 2840 216 Figure 4 9 7 IGMP Member Port Table screenshot ...
Page 280: ...User s Manual of IGSW 2840 280 Figure 4 11 19 SSH Host Key Settings screenshot ...
Page 315: ...User s Manual of IGSW 2840 315 Figure 4 11 44 MAC ACL Settings screenshot ...
Page 317: ...User s Manual of IGSW 2840 317 Figure 4 11 46 ACL Port Binding Settings screenshot ...
Page 431: ...User s Manual of IGSW 2840 431 tacacs 1 Console ...