型号及版本
Cisco 9300-24T switch
GlobalCore-C9300#show inventory
NAME: "c93xx Stack", DESCR: "c93xx Stack"
PID: C9300-24T , VID: V02 , SN: FCW2220L0B8
GlobalCore-C9300#sh version
Cisco IOS XE Software, Version 16.06.03
修改前默认priority
GlobalCore-C9300#sh spanning-tree vlan 17
VLAN0017
Spanning tree enabled protocol rstp
Root ID Priority 32785
Address 848a.8dc3.2080
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32785 (priority 32768 sys-id-ext 17)
Address 848a.8dc3.2080
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Po1 Desg FWD 4 128.2281 P2p
Po2 Desg FWD 4 128.2282 P2p
Po3 Desg FWD 4 128.2283 P2p
Po4 Desg FWD 4 128.2284 P2p
修改为0
GlobalCore-C9300(config)#spanning-tree vlan 17 priority ?
<0-61440> bridge priority in increments of 4096
GlobalCore-C9300(config)#spanning-tree vlan 17 priority 0
修改后确认
GlobalCore-C9300#sh spanning-tree vlan 17
VLAN0017
Spanning tree enabled protocol rstp
Root ID Priority 17
Address 848a.8dc3.2080
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 17 (priority 0 sys-id-ext 17)
Address 848a.8dc3.2080
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Po1 Desg FWD 4 128.2281 P2p
Po2 Desg FWD 4 128.2282 P2p
Po3 Desg FWD 4 128.2283 P2p
Po4 Desg FWD 4 128.2284 P2p
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