Netgear GS510TP – ProSAFE 8-Port Gigabit Smart Switch with PoE and 2 fiber SFP ports 관리자 가이드
Configuration Examples
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GS510TP and GS110T Gigabit Smart Switches
To support multiple spanning trees, a MSTP bridge has to be configured with an
unambiguous assignment of VLAN IDs (VIDs) to spanning trees. This is achieved by:
unambiguous assignment of VLAN IDs (VIDs) to spanning trees. This is achieved by:
1.
Ensuring that the allocation of VIDs to FIDs is unambiguous.
2.
Ensuring that each FID supported by the Bridge is allocated to exactly one Spanning Tree
Instance.
The combination of VID to FID and then FID to MSTI allocation defines a mapping of VIDs to
spanning tree instances, represented by the MST Configuration Table.
spanning tree instances, represented by the MST Configuration Table.
With this allocation we ensure that every VLAN is assigned to one and only one MSTI. The
CIST is also an instance of spanning tree with a MSTID of 0.
CIST is also an instance of spanning tree with a MSTID of 0.
An instance may occur that has no VIDs allocated to it, but every VLAN must be allocated to
one of the other instances of spanning tree.
one of the other instances of spanning tree.
The portion of the active topology of the network that connects any two bridges in the same
MST Region traverses only MST bridges and LANs in that region, and never Bridges of any
kind outside the Region, in other words connectivity within the region is independent of
external connectivity.
MST Region traverses only MST bridges and LANs in that region, and never Bridges of any
kind outside the Region, in other words connectivity within the region is independent of
external connectivity.
MSTP Example Configuration
This example shows how to create an MSTP instance from the GS110T or GS510TP switch.
The example network has three different GS110T or GS510TP switches that serve different
locations in the network. In this example, ports g1–g5 are connected to host stations, so
those links are not subject to network loops. Ports g6-g8 are connected across switches 1, 2
and 3.
The example network has three different GS110T or GS510TP switches that serve different
locations in the network. In this example, ports g1–g5 are connected to host stations, so
those links are not subject to network loops. Ports g6-g8 are connected across switches 1, 2
and 3.
Ports g1-g5
Switch 1
Connected to Hosts
Root Bridge
Switch 2
Switch 3
Ports g1-g5
Connected to Hosts
Connected to Hosts
Ports g1-g5
Connected to Hosts
Ports g6-g8
Connected to Switch 2 and 3
Ports g6-g8
Connected to Switch 1 and 2
Ports g6-g8
Connected to
Switch 1 and 3
Switch 1 and 3
Perform the following procedures on each switch to configure MSTP: