Wavetronix Click 342 (lean managed ethernet switch) (CLK-342) Manuel d'utilisateur Page 61
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
60 CHAPTER 6 RAPID SPANNING TREE
A data path can also be a connection of a Spanning Tree switch to:
A termination device.
A network segment in which no loops may occur, which consists of several infrastruc-
ture components (hubs or switches) without Spanning Tree support.
Notes on Rapid Spanning Tree
e following rules regarding Spanning Tree must be observed:
1 Spanning Tree transparency for all infrastructure components – All infrastructure
components used in your network that do not actively support Spanning Tree must be
transparent for Spanning Tree messages (BPDUs) and must forward all BPDUs to all
ports without modifying them. When Spanning Tree is disabled, the switch is transpar-
ent for BPDUs.
2 At least one active Spanning Tree component per loop – An active Spanning Tree
component supports the Spanning Tree Protocol, sends/ receives and evaluates BP-
DUs, and sets its ports to the relevant STP states. Each loop in a network must have at
least one active Spanning Tree component to disintegrate the loop.
Example: e example topology below contains six loops (see Figure 6.7). Each of these
loops contains active STP components, e.g., device 4 and device 2. In this way, all loops are
broken by STP.
Figure 6.7 – Example Topology
3 No more than 10 active Spanning Tree components in the topology when using
Spanning Tree default settings – e ability to disintegrate any topology to form a
tree without loops requires a complex protocol that works with several variable tim-
ers. ese variable timers are dimensioned using IEEE standard default values so that
a topology with a maximum of ten active Spanning Tree components always results in
a stable network.
In the examples below, two network segments are connected via redundant data paths (see
Figure 6.8 and 6.9). Two STP components have ports in the Blocking state (highlighted in
- USER GUIDE 1
- Click 340/341/342 2
- Managed Switches 2
- Contents 4
- In this chapter 6
- Properties 6
- Physical Features 7
- Removing the Device 10
- Wiring the Managed Switch 11
- Alarm Contact 12
- Grounding 13
- Startup and Functions 2 14
- Assigning IP Parameters 15
- Assigning IP Addresses 16
- Subnet Masks 18
- Flowchart After a Restart 19
- Frame Switching 21
- Prioritization 22
- Strict Priority 23
- Assign IP 3 24
- 24 CHAPTER 3 ASSIGN IP 25
- CHAPTER 3 ASSIGN IP 25 26
- 26 CHAPTER 3 ASSIGN IP 27
- Web-based Management (WBM) 4 28
- Functions/Information in WBM 29
- General Instructions 30
- Device Information 30
- Local Diagnostics Menu 30
- Serial Port Menu 31
- IP Configuration Menu 31
- SNMP Configuration Menu 32
- Software Update Menu 32
- Change Password Menu 33
- User Interfaces Menu 34
- Configuration Management Menu 34
- Ports Menu 36
- Port Configuration Table Menu 37
- Port Statistics Menu 38
- Ports/Port Mirroring Menu 38
- Display Menu 39
- Alarm Contact Menu 39
- Utilization Menu 40
- SNMP Interface 41
- Diagram of SNMP Management 42
- Figure 4.23 – Diagram of SNMP 43
- RS-232 (V.24) Interface 5 46
- User Interface Functions 47
- Resetting to Default Settings 49
- Starting With Faulty Software 50
- Figure 5.7 – Xmodem Ready 51
- Rapid Spanning Tree 6 54
- RSTP Startup 55
- RSTP Configuration 57
- RSTP Port Table 57
- RSTP Port Configuration 58
- Switch/Port ID 58
- Tree support 60
- Notes on Rapid Spanning Tree 61
- Specifying the Root Switch 62
- Modifying the Protocol Timer 63
- Reconfiguration Times 65
- Multicast Filtering 7 68
- Appendix 72
- Supply Voltage 73
- Mechanical Tests 74
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