Cisco switch spanning-tree priority 0

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