
C
HAPTER
8
| Spanning Tree Algorithm
Configuring Global Settings for STA
– 245 –
◆
Spanning Tree Type
– Specifies the type of spanning tree used on
this switch:
■
STP
: Spanning Tree Protocol (IEEE 802.1D); i.e., when this option
is selected, the switch will use RSTP set to STP forced compatibility
mode).
■
RSTP
: Rapid Spanning Tree (IEEE 802.1w); RSTP is the default.
■
MSTP
: Multiple Spanning Tree (IEEE 802.1s)
◆
Priority
– Bridge priority is used in selecting the root device, root port,
and designated port. The device with the highest priority becomes the
STA root device. However, if all devices have the same priority, the
device with the lowest MAC address will then become the root device.
(Note that lower numeric values indicate higher priority.)
■
Default: 32768
■
Range: 0-61440, in steps of 4096
■
Options: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672,
32768, 36864, 40960, 45056, 49152, 53248, 57344, 61440
◆
BPDU Flooding
– Configures the system to flood BPDUs to all other
ports on the switch or just to all other ports in the same VLAN when
spanning tree is disabled globally on the switch or disabled on a specific
port.
■
To VLAN: Floods BPDUs to all other ports within the receiving port’s
native VLAN (i.e., as determined by port’s PVID). This is the default.
■
To All: Floods BPDUs to all other ports on the switch.
The setting has no effect if BPDU flooding is disabled on a port (see
"Configuring Interface Settings for STA"
◆
Cisco Prestandard Status
– Configures spanning tree operation to be
compatible with Cisco prestandard versions. (Default: Disabled)
Cisco prestandard versions prior to Cisco IOS Release 12.2(25)SEC do
not fully follow the IEEE standard, causing some state machine
procedures to function incorrectly. This command forces the spanning
tree protocol to function in a manner compatible with Cisco prestandard
versions.
Advanced Configuration Settings
The following attributes are based on RSTP, but also apply to STP since the
switch uses a backwards-compatible subset of RSTP to implement STP, and
also apply to MSTP which is based on RSTP according to the standard:
◆
Path Cost Method
– The path cost is used to determine the best path
between devices. The path cost method is used to determine the range
of values that can be assigned to each interface.
■
Long: Specifies 32-bit based values that range from 1-200,000,000.
(This is the default.)
■
Short: Specifies 16-bit based values that range from 1-65535.
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...