Dell PowerSwitch S4112F-ON OS10 Enterprise Edition User Guide Release 10.4.1.0 - Page 238
Global parameters
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ethernet1/1/6:1 128.280 128 2000 FWD 0 32768 3417.4455.667f ethernet1/1/6:2 128.281 128 2000 FWD 0 32768 3417.4455.667f ethernet1/1/6:3 128.282 128 2000 FWD 0 32768 3417.4455.667f ethernet1/1/6:4 128.283 128 2000 BLK 0 32768 3417.4455.667f ethernet1/1/7 128.284 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/8 128.288 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/9 128.292 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/10 128.296 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/11 128.300 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/12 128.304 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/13 128.308 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/14 128.312 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/15 128.316 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/16 128.320 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/17 128.324 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/18 128.328 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/19 128.332 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/20 128.336 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/21 128.340 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/22 128.344 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/23 128.348 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/24 128.352 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/25 128.356 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/26 128.360 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/27 128.364 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/28 128.368 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/29 128.372 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/30 128.376 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/31 128.380 128 200000000 BLK 0 0 0000.0000.0000 ethernet1/1/32 128.384 128 200000000 BLK 0 0 0000.0000.0000 Interface Name Role PortID Prio Cost Sts Cost Link-type Edge ethernet1/1/1 Disb 128.260 128 200000000 BLK 0 AUTO No ethernet1/1/2 Disb 128.264 128 200000000 BLK 0 AUTO No ethernet1/1/3 Disb 128.268 128 200000000 BLK 0 AUTO No ethernet1/1/4 Disb 128.272 128 200000000 BLK 0 AUTO No ethernet1/1/5:1 Disb 128.276 128 200000000 BLK 0 AUTO No 128.150 128.151 128.152 128.153 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Global parameters The root bridge sets the values for forward-time, hello-time, and max-age, and overwrites the values set on other bridges participating in the RSTP group. Dell EMC recommends that only experienced network administrators change the RSTP group parameters. Poorly planned modification of the RSTP parameters can negatively affect network performance. Forward-time Hello-time Max-age Port cost 15 seconds - Amount of time an interface waits in the Listening state and the Learning state before it transitions to the Forwarding state. 2 seconds - Time interval in which the bridge sends RSTP BPDUs. 20 seconds - Length of time the bridge maintains configuration information before it refreshes that information by recomputing the RSTP topology. Port cost values to set the path cost of the interface: • 100-Mb/s Ethernet interfaces - 200000 • 1-Gigabit Ethernet interfaces - 20000 • 10-Gigabit Ethernet interfaces - 2000 • 40-Gigabit Ethernet interfaces - 500 • Port-channel with 100 Mb/s Ethernet interfaces - 200000 • Port-channel with 1-Gigabit Ethernet interfaces - 20000 • Port-channel with 10-Gigabit Ethernet interfaces - 2000 238 Layer 2