Path Cost & Port Priority
By default, each port on a Spanning Tree switch will be assigned a
Path Cost
based on
the port’s transmission speed according to the IEEE standard below:
Link speed
Recommended value
Less than or equal 100Kb/s
200,000,000
1 Mb/s
20,000,000
10 Mb/s
2,000,000
100 Mb/s
200,000
1 Gb/s
20,000
10 Gb/s
2,000
100 Gb/s
200
1 Tb/s
20
10 Tb/s
2
By default each port on a Spanning Tree switch will be assigned a Port Priority of
128, according to the IEEE standard. This Port Priority is part of the Port ID, which is
a concatenation of 2 values: Port Priority (4 bits) + Interface ID (12 bits) (see
Figure 44: Port ID
Port Priority is part of the Port ID, which is a concatenation of 2 values: Port Priority
(4 bits) + Interface ID (12 bits).
The default values will work fine in most scenarios; however, there are times when
you may need to adjust these values manually in order to influence the location of
the Alternate Port, the Root Port or the Backup Port.
99
EX24000 Switch Users Guide
Содержание EX24000
Страница 32: ...Figure 8 IP Address 32 EX24000 Switch Users Guide ...
Страница 42: ...Figure 14 Remote Logging Page 42 EX24000 Switch Users Guide ...
Страница 53: ...Figure 22 Port Security 53 EX24000 Switch Users Guide ...
Страница 61: ...Figure 23 Bridging 61 EX24000 Switch Users Guide ...
Страница 67: ...Figure 26 Storm Detect 67 EX24000 Switch Users Guide ...
Страница 72: ...Figure 31 Port Mirroring 72 EX24000 Switch Users Guide ...
Страница 88: ...Figure 38 LACP Trunking 88 EX24000 Switch Users Guide ...
Страница 93: ...Figure 39 STP Ring Global Configuration 93 EX24000 Switch Users Guide ...
Страница 97: ...Figure 42 Max Age Hello Timer Forward Delay 97 EX24000 Switch Users Guide ...
Страница 116: ...Figure 55 Port Cost Priority 116 EX24000 Switch Users Guide ...
Страница 118: ...Figure 56 Port Instance Configuration Figure 57 Port Instance Adding Ports 118 EX24000 Switch Users Guide ...
Страница 132: ...Figure 63 Advanced Per Port Configuration 132 EX24000 Switch Users Guide ...
Страница 163: ...Figure 78 SNMP General Settings 163 EX24000 Switch Users Guide ...
Страница 181: ...Figure 91 LLDP Global Settings 181 EX24000 Switch Users Guide ...
Страница 183: ...Figure 92 LLDP Ports Settings 183 EX24000 Switch Users Guide ...
Страница 193: ...Figure 95 GVRP 193 EX24000 Switch Users Guide ...
Страница 198: ...Figure 98 GVRP Per Port Settings 198 EX24000 Switch Users Guide ...
Страница 223: ...Figure 110 Daylight Savings Date Mode 223 EX24000 Switch Users Guide ...