Cisco 813 Dokumentacja Strona 35
- Strona / 112
- Spis treści
- ROZWIĄZYWANIE PROBLEMÓW
- BOOKMARKI
Oceniono. / 5. Na podstawie oceny klientów
CHAPTER 3
Spanning Tree
TCN BPDUs are sent by a downstream switch toward the root when:
n There is a link failure.
n A port starts forwarding, and there is already a designated port.
n The switch receives a TCN from a neighbor.
When a switch receives a TCN BPDU, it acknowledges that with a configuration BPDU that has the TCN
Acknowledgment bit set.
When the root bridge receives a TCN, it starts sending configuration BPDUs with the TCN bit set for a period of time
equal to max age plus forward delay. Switches that receive this change their MAC table aging time to the Forward Delay
time, causing MAC addresses to age faster. The topology change also causes an election of the root bridge, root ports, and
designated ports.
Some of the fields in the BPDU include:
n Root bridge ID: The BID of the current root
n Sender’s root path cost: The cost to the root
n Sender’s bridge ID: Sender’s priority concatenated to MAC
n Sender’s port ID: The port number, transmitted as final tie-breaker
n Hello time: Two seconds by default
n Forward Delay: Fifteen seconds by default
n Max Age: Twenty seconds by default
[ 35 ]
© 2010 Pearson Education, Inc. All rights reserved. This publication is protected by copyright. Please see page 112 for more details.
CCNP SWITCH 642-813 Quick Reference by Denise Donohue
- CCNP SWITCH 642-813 1
- Quick Reference 1
- About the Author 2
- About the Technical Editor 2
- Icons Used 3
- Chapter 1 4
- The Core Layer 5
- Small Campus Design 6
- Medium Campus Design 6
- Data Center Design 7
- Network Traffic Flow 8
- FIGURE 1-3 10
- Chapter 2 12
- FIGURE 2-1 13
- FIGURE 2-2 13
- VLAN Planning 14
- Verifying VLAN Configuration 15
- VLAN Trunking 17
- Configuring a Trunk Link 18
- VLANs Allowed on the Trunk 19
- VLAN Trunking Protocol 20
- VTP Switch Roles 21
- Configuring VTP 22
- Verifying and Monitoring VTP 23
- EtherChannels 24
- Configuring an EtherChannel 25
- Verifying an EtherChannel 26
- Troubleshooting VLAN Issues 27
- Troubleshooting VTP 28
- Chapter 3 29
- FIGURE 3-1 30
- The STP Election 32
- Root Port Election 33
- Designated Port Election 33
- Bridge Protocol Data Units 34
- Spanning Tree Port States 36
- Per-VLAN Spanning-Tree 36
- Configuring Spanning Tree 37
- Rapid Spanning Tree 38
- RSTP Port Roles 39
- BPDU Differences in RSTP 39
- RSTP Fast Convergence 39
- Multiple Spanning Tree 40
- (config-mst)# revision number 41
- (config-mst)# end 41
- # show spanning-tree mst 41
- UplinkFast 42
- BackboneFast 42
- BPDU Guard 43
- BPDU Filtering 43
- Root Guard 44
- Unidirectional Link Detection 44
- Loop Guard 45
- Troubleshooting STP 46
- Identifying a Bridging Loop 47
- Spanning-Tree Best Practices 47
- FIGURE 3-3 48
- Chapter 4 49
- MLS Interfaces 53
- CEF Switching 55
- FIGURE 4-1 56
- # show cef drop 58
- # show adjacency 58
- Chapter 5 59
- Technology 60
- Processes 61
- Network Level Resiliency 63
- Fast Failover 63
- Optimizing Redundancy 64
- Designing for Redundancy 65
- FIGURE 5-2 66
- FIGURE 5-3 67
- FIGURE 5-4 67
- Chapter 6 72
- HSRP States 73
- Configuring HSRP 74
- Chapter 7 79
- MAC Address-Based Attacks 80
- Port-Based Authentication 82
- VLAN-Based Attacks 83
- 802.1Q Double-Tagging 84
- Private VLANs 86
- Protected Ports 87
- Spoof Attacks 88
- Securing Your Switch 89
- Chapter 8 91
- VoIP in a Campus Network 92
- FIGURE 8-1 93
- Voice VLANs 94
- QoS for VoIP 95
- QoS Actions 96
- DSCP Values 97
- Trust Boundaries 98
- Manual Configuration 99
- Using AutoQoS 100
- Video over IP 101
- Chapter 9 102
- WLAN Topologies 104
- Client Connectivity 105
- Autonomous (Stand-alone) APs 106
- Lightweight Access Points 107
- Wireless LAN Controllers 109
- Switch Configuration 110
- CCNP SWITCH Quick Reference 112
Powiązane produkty i podręczniki dla Networking Cisco 813
Networking Cisco Engine 611 Dokumentacja
(718 strony)
(718 strony)
Networking Cisco 3745 Przewodnik Instalacji
(32 strony)
(32 strony)
Networking Cisco uBR10-SRP-OC12SML Dokumentacja
(236 strony)
(236 strony)
Networking Cisco RPM-XF Dokumentacja
(688 strony)
(688 strony)
Networking Cisco 2613 Instrukcja Użytkownika
(16 strony)
(16 strony)
Networking Cisco NM-HDV-1E1-30E - 30 Enhanced Channel E1 Voice/Fax Network Module Instrukcja Obsługi
(24 strony)
(24 strony)
Networking Cisco 15216 EDFA2 Dokumentacja
(252 strony)
(252 strony)
Networking Cisco EZXS88W Podręcznik Użytkownika
(10 strony)
(10 strony)
Electrolux ER 1632 T manuals
Owner’s manuals and user’s guides for Fridges Electrolux ER 1632 T.
We providing 1 pdf manuals Electrolux ER 1632 T for download free by document types: User Manual
Table of contents
More products and manuals for Fridges Electrolux
| Models | Document Type |
|---|---|
| ERN3420 |
User Manual
Electrolux ERN3420 User Manual,
10 pages
|
| ER6632I |
User Manual
Electrolux ER6632I User Manual,
17 pages
|
| ER8034I |
User Manual
Electrolux ER8034I User Manual [sq] ,
12 pages
|
| ERT1601AOW2 |
User Manual
  
Electrolux ERT1601AOW2 Handleiding [fr] ,
64 pages
|
| ERZ36700X8 |
User Manual
Electrolux ERZ36700X8 Handleiding,
52 pages
|
| ERT1605AOW |
User Manual
Electrolux ERT1605AOW Handleiding [nl] ,
60 pages
|
| ER3136I |
User Manual
Electrolux ER3136I User Manual,
10 pages
|
| ER7620C |
User Manual
Electrolux ER7620C User Manual [fr] ,
10 pages
|
| ERE3600 |
User Manual
Electrolux ERE3600 User Manual,
17 pages
|
| ERN2372 |
User Manual
Electrolux ERN2372 User Manual,
20 pages
|
| ER6336U |
User Manual
Electrolux ER6336U User Manual [ua] ,
22 pages
|
| ERB36301X8 |
User Manual
Electrolux ERB36301X8 User Manual,
60 pages
|
| ER8366B |
User Manual
Electrolux ER8366B User Manual [de] [el] [fr] [nl] ,
15 pages
|
| ERE3900X |
User Manual
Electrolux ERE3900X User Manual,
18 pages
|
| EN3851AOW |
User Manual
Electrolux EN3851AOW Handleiding,
60 pages
|
| ERC37222W |
User Manual
Electrolux ERC37222W User Manual,
16 pages
|
| EU6830C |
User Manual
 
Electrolux EU6830C User Manual,
11 pages
|
| ERF3310AOX |
User Manual
Electrolux ERF3310AOX Handleiding,
48 pages
|
| ERN28600 |
User Manual
Electrolux ERN28600 User Manual,
20 pages
|
| ER1532T |
User Manual
Electrolux ER1532T User Manual,
20 pages
|
© 2020, manymanuals.pl. Wszelkie prawa zastrzeżone. | 0.020 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji